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but is about ensuring that the content a search engine indexes and subsequently ranks is the same content a user will see. White hat advice is generally summed up as creating content for users, not for search engines, and then making that content easily accessible to the online "spider" algorithms, rather than attempting to trick the algorithm from its intended purpose. White hat SEO is in many ways similar to web development that promotes accessibility, although the two are not identical.
352:. Meta tags provide a guide to each page's content. Using metadata to index pages was found to be less than reliable, however, because the webmaster's choice of keywords in the meta tag could potentially be an inaccurate representation of the site's actual content. Flawed data in meta tags, such as those that were inaccurate or incomplete, created the potential for pages to be mischaracterized in irrelevant searches. Web content providers also manipulated some attributes within the
799:. However, search engines are not paid for organic search traffic, their algorithms change, and there are no guarantees of continued referrals. Due to this lack of guarantee and uncertainty, a business that relies heavily on search engine traffic can suffer major losses if the search engines stop sending visitors. Search engines can change their algorithms, impacting a website's search engine ranking, possibly resulting in a serious loss of traffic. According to Google's CEO,
493:, do not disclose the algorithms they use to rank pages. Some SEO practitioners have studied different approaches to search engine optimization and have shared their personal opinions. Patents related to search engines can provide information to better understand search engines. In 2005, Google began personalizing search results for each user. Depending on their history of previous searches, Google crafted results for logged in users.
505:, a well-known software engineer at Google, announced that Google Bot would no longer treat any no follow links, in the same way, to prevent SEO service providers from using nofollow for PageRank sculpting. As a result of this change, the usage of nofollow led to evaporation of PageRank. In order to avoid the above, SEO engineers developed alternative techniques that replace nofollowed tags with obfuscated
529:, real-time-search, was introduced in late 2010 in an attempt to make search results more timely and relevant. Historically site administrators have spent months or even years optimizing a website to increase search rankings. With the growth in popularity of social media sites and blogs, the leading engines made changes to their algorithms to allow fresh content to rank quickly within the search results.
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query in order to better match the pages to the meaning of the query rather than a few words. With regards to the changes made to search engine optimization, for content publishers and writers, Hummingbird is intended to resolve issues by getting rid of irrelevant content and spam, allowing Google to produce high-quality content and rely on them to be 'trusted' authors.
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attempted to penalize websites that used manipulative techniques to improve their rankings on the search engine. Although Google
Penguin has been presented as an algorithm aimed at fighting web spam, it really focuses on spammy links by gauging the quality of the sites the links are coming from. The
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is the practice of designing, running, and optimizing search engine ad campaigns. Its difference from SEO is most simply depicted as the difference between paid and unpaid priority ranking in search results. SEM focuses on prominence more so than relevance; website developers should regard SEM with
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An SEO technique is considered a white hat if it conforms to the search engines' guidelines and involves no deception. As the search engine guidelines are not written as a series of rules or commandments, this is an important distinction to note. White hat SEO is not just about following guidelines
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Mobile devices are used for the majority of Google searches. In
November 2016, Google announced a major change to the way they are crawling websites and started to make their index mobile-first, which means the mobile version of a given website becomes the starting point for what Google includes in
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update, which penalizes websites containing content duplicated from other websites and sources. Historically websites have copied content from one another and benefited in search engine rankings by engaging in this practice. However, Google implemented a new system that punishes sites whose content
455:. PageRank estimates the likelihood that a given page will be reached by a web user who randomly surfs the web and follows links from one page to another. In effect, this means that some links are stronger than others, as a higher PageRank page is more likely to be reached by the random web surfer.
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showed the most relevant search results, rather than unrelated pages stuffed with numerous keywords by unscrupulous webmasters. This meant moving away from heavy reliance on term density to a more holistic process for scoring semantic signals. Since the success and popularity of a search engine are
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is the first file crawled. The robots.txt file is then parsed and will instruct the robot as to which pages are not to be crawled. As a search engine crawler may keep a cached copy of this file, it may on occasion crawl pages a webmaster does not wish to crawl. Pages typically prevented from being
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represented about 75% of all searches. In markets outside the United States, Google's share is often larger, and Google remains the dominant search engine worldwide as of 2007. As of 2006, Google had an 85–90% market share in
Germany. While there were hundreds of SEO firms in the US at that time,
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frequently searched keyword phrases so as to be relevant to a wide variety of search queries will tend to increase traffic. Updating content so as to keep search engines crawling back frequently can give additional weight to a site. Adding relevant keywords to a web page's metadata, including the
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crawled include login-specific pages such as shopping carts and user-specific content such as search results from internal searches. In March 2007, Google warned webmasters that they should prevent indexing of internal search results because those pages are considered search spam. In 2020, Google
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models for
English language search queries in the US. Bidirectional Encoder Representations from Transformers (BERT) was another attempt by Google to improve their natural language processing, but this time in order to better understand the search queries of their users. In terms of search engine
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update featured an algorithm change designed to improve Google's natural language processing and semantic understanding of web pages. Hummingbird's language processing system falls under the newly recognized term of "conversational search", where the system pays more attention to each word in the
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Search engines may penalize sites they discover using black or grey hat methods, either by reducing their rankings or eliminating their listings from their databases altogether. Such penalties can be applied either automatically by the search engines' algorithms or by a manual site review. One
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SEO techniques can be classified into two broad categories: techniques that search engine companies recommend as part of good design ("white hat"), and those techniques of which search engines do not approve ("black hat"). Search engines attempt to minimize the effect of the latter, among them
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rendering engine to the latest version. In
December 2019, Google began updating the User-Agent string of their crawler to reflect the latest Chrome version used by their rendering service. The delay was to allow webmasters time to update their code that responded to particular bot User-Agent
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As of 2009, there are only a few large markets where Google is not the leading search engine. In most cases, when Google is not leading in a given market, it is lagging behind a local player. The most notable example markets are China, Japan, South Korea, Russia, and the Czech
Republic, where
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was announced. Designed to allow users to find news results, forum posts, and other content much sooner after publishing than before, Google
Caffeine was a change to the way Google updated its index in order to make things show up quicker on Google than before. According to Carrie Grimes, the
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between pages of the same website to provide more links to important pages may improve its visibility. Page design makes users trust a site and want to stay once they find it. When people bounce off a site, it counts against the site and affects its credibility. Writing content that includes
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feed can be created and submitted for free to ensure that all pages are found, especially pages that are not discoverable by automatically following links in addition to their URL submission console. Yahoo! formerly operated a paid submission service that guaranteed to crawl for a
803:, in 2010, Google made over 500 algorithm changes – almost 1.5 per day. It is considered a wise business practice for website operators to liberate themselves from dependence on search engine traffic. In addition to accessibility in terms of web crawlers (addressed above), user
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can help make sure links to different versions of the URL all count towards the page's link popularity score. These are known as incoming links, which point to the URL and can count towards the page link's popularity score, impacting the credibility of a website.
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the utmost importance with consideration to visibility as most navigate to the primary listings of their search. A successful
Internet marketing campaign may also depend upon building high-quality web pages to engage and persuade internet users, setting up
318:, extracts information about the page, such as the words it contains, where they are located, and any weight for specific words, as well as all links the page contains. All of this information is then placed into a scheduler for crawling at a later date.
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in
October 2016, where they analyzed 2.5 million websites and found that 51.3% of the pages were loaded by a mobile device. Google has been one of the companies that are utilizing the popularity of mobile usage by encouraging websites to use their
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Some search engines have also reached out to the SEO industry and are frequent sponsors and guests at SEO conferences, webchats, and seminars. Major search engines provide information and guidelines to help with website optimization. Google has a
742:. This is in between the black hat and white hat approaches, where the methods employed avoid the site being penalized but do not act in producing the best content for users. Grey hat SEO is entirely focused on improving search engine rankings.
792:, the Mobile-Friendly Test, which allows companies to measure up their website to the search engine results and determine how user-friendly their websites are. The closer the keywords are together their ranking will improve based on key terms.
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In March 2006, KinderStart filed a lawsuit against Google over search engine rankings. KinderStart's website was removed from Google's index prior to the lawsuit, and the amount of traffic to the site dropped by 70%. On March 16, 2007, the
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determined by its ability to produce the most relevant results to any given search, poor quality or irrelevant search results could lead users to find other search sources. Search engines responded by developing more complex
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SEO. White hats tend to produce results that last a long time, whereas black hats anticipate that their sites may eventually be banned either temporarily or permanently once the search engines discover what they are doing.
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source of a page in an attempt to rank well in search engines. By 1997, search engine designers recognized that webmasters were making efforts to rank well in their search engine and that some webmasters were even
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attempts to improve rankings in ways that are disapproved of by the search engines or involve deception. One black hat technique uses hidden text, either as text colored similar to the background, in an invisible
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typed into search engines, and which search engines are preferred by their targeted audience. SEO is performed because a website will receive more visitors from a search engine when websites rank higher on the
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their index. In May 2019, Google updated the rendering engine of their crawler to be the latest version of
Chromium (74 at the time of the announcement). Google indicated that they would regularly update the
466:, headings, links and site structure) to enable Google to avoid the kind of manipulation seen in search engines that only considered on-page factors for their rankings. Although PageRank was more difficult to
376:, which were exclusively within a webmaster's control, early search engines suffered from abuse and ranking manipulation. To provide better results to their users, search engines had to adapt to ensure their
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In 2007, Google announced a campaign against paid links that transfer PageRank. On June 15, 2009, Google disclosed that they had taken measures to mitigate the effects of PageRank sculpting by use of the
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search engine, and these methods proved similarly applicable to gaming PageRank. Many sites focus on exchanging, buying, and selling links, often on a massive scale. Some of these schemes, or
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the standard (and open-sourced their code) and now treats it as a hint not a directive. To adequately ensure that pages are not indexed, a page-level robot's meta tag should be included.
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Optimization techniques are highly tuned to the dominant search engines in the target market. The search engines' market shares vary from market to market, as does competition. In 2003,
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with contractual relations. On May 27, 2003, the court granted Google's motion to dismiss the complaint because SearchKing "failed to state a claim upon which relief may be granted."
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By 2004, search engines had incorporated a wide range of undisclosed factors in their ranking algorithms to reduce the impact of link manipulation. The leading search engines, Google,
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was developing and promoting mobile search as a key feature within future products. In response, many brands began to take a different approach to their Internet marketing strategies.
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to find pages for their algorithmic search results. Pages that are linked from other search engine-indexed pages do not need to be submitted because they are found automatically. The
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In December 2009, Google announced it would be using the web search history of all its users in order to populate search results. On June 8, 2010 a new web indexing system called
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779:. In November 2015, Google released a full 160-page version of its Search Quality Rating Guidelines to the public, which revealed a shift in their focus towards "usefulness" and
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734:, or positioned off-screen. Another method gives a different page depending on whether the page is being requested by a human visitor or a search engine, a technique known as
1620:"Co-founders of Google - Google's co-founders may not have the name recognition of say, Bill Gates, but give them time: Google hasn't been around nearly as long as Microsoft"
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Germany for the use of deceptive practices. Both companies, however, quickly apologized, fixed the offending pages, and were restored to Google's search engine results page.
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a site. Not every page is indexed by search engines. The distance of pages from the root directory of a site may also be a factor in whether or not pages get crawled.
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users, who liked its simple design. Off-page factors (such as PageRank and hyperlink analysis) were considered as well as on-page factors (such as keyword frequency,
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SEO is not an appropriate strategy for every website, and other Internet marketing strategies can be more effective, such as paid advertising through pay-per-click
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optimization, BERT intended to connect users more easily to relevant content and increase the quality of traffic coming to websites that are ranking in the
447:, developed "Backrub", a search engine that relied on a mathematical algorithm to rate the prominence of web pages. The number calculated by the algorithm,
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337:, the phrase "search engine optimization" probably came into use in 1997. Sullivan credits Bruce Clay as one of the first people to popularize the term.
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1977:
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314:. The process involves a search engine spider/crawler crawls a page and storing it on the search engine's own server. A second program, known as an
883:, Western District of Oklahoma, against the search engine Google. SearchKing's claim was that Google's tactics to prevent spamdexing constituted a
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To avoid undesirable content in the search indexes, webmasters can instruct spiders not to crawl certain files or directories through the standard
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provides a way for webmasters to submit a sitemap and web feeds, allows users to determine the "crawl rate", and track the web pages index status.
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program to help webmasters learn if Google is having any problems indexing their website and also provides data on Google traffic to the website.
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specific to robots (usually <meta name="robots" content="noindex"> ). When a search engine visits a site, the robots.txt located in the
596:, two major directories which closed in 2014 and 2017 respectively, both required manual submission and human editorial review. Google offers
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software engineer who announced Caffeine for Google, "Caffeine provides 50 percent fresher results for web searches than our last index..."
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and content providers began optimizing websites for search engines in the mid-1990s, as the first search engines were cataloging the early
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file in the root directory of the domain. Additionally, a page can be explicitly excluded from a search engine's database by using a
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Companies that employ overly aggressive techniques can get their client websites banned from the search results. In 2005, the
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there were only about five in Germany. As of June 2008, the market share of Google in the UK was close to 90% according to
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3116:"Technology & Marketing Law Blog: KinderStart v. Google Dismissed—With Sanctions Against KinderStart's Counsel"
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and thus permit PageRank sculpting. Additionally, several solutions have been suggested that include the usage of
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871:. Otherwise, the fundamental elements of search optimization are essentially the same, regardless of language.
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Tapan, Panda (2013). "Search Engine Marketing: Does the Knowledge Discovery Process Help Online Retailers?".
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Division) dismissed KinderStart's complaint without leave to amend and partially granted Google's motion for
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magazine reported that the same company sued blogger and SEO Aaron Wall for writing about the ban. Google's
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2571:"What's an SEO? Does Google recommend working with companies that offer to make my site Google-friendly?"
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in search results by stuffing pages with excessive or irrelevant keywords. Early search engines, such as
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1066:"Academic Search Engine Optimization (ASEO): Optimizing Scholarly Literature for Google Scholar and Co"
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710:. Industry commentators have classified these methods and the practitioners who employ them as either
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Page and Brin founded Google in 1998. Google attracted a loyal following among the growing number of
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783:. In recent years the mobile market has exploded, overtaking the use of desktops, as shown in by
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sanctions against KinderStart's attorney, requiring him to pay part of Google's legal expenses.
385:, taking into account additional factors that were more difficult for webmasters to manipulate.
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that page, extract links to other pages from it, and return information found on the page to be
398:, which allegedly used high-risk techniques and failed to disclose those risks to its clients.
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1108:. Journal of the American Society for Information Sciences and Technology. 63(7), 1426 – 1441.
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2488:"Bing – Partnering to help solve duplicate content issues – Webmaster Blog – Bing Community"
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1596:. Proceedings of the seventh international conference on World Wide Web. pp. 107–117.
676:, will tend to improve the relevancy of a site's search listings, thus increasing traffic.
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3142:"Technology & Marketing Law Blog: Google Sued Over Rankings—KinderStart.com v. Google"
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A variety of methods can increase the prominence of a webpage within the search results.
1007:"Investigating Search Engine Optimization Factors in Media Websites: The case of Greece"
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that dictate search engine behavior, what people search for, the actual search terms or
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1892:"Google Loses "Backwards Compatibility" On Paid Link Blocking & PageRank Sculpting"
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Classifying Web Search Queries in Order to Identify High Revenue Generating Customers
1038:
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470:, webmasters had already developed link-building tools and schemes to influence the
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later confirmed that Google did in fact ban Traffic Power and some of its clients.
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Successful search optimization for international markets may require professional
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2700:
2233:"Submitting To Search Crawlers: Google, Yahoo, Ask & Microsoft's Live Search"
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2003:
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2411:"Newspapers Amok! New York Times Spamming Google? LA Times Hijacking Cars.com?"
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strings. Google ran evaluations and felt confident the impact would be minor.
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369:, adjusted their algorithms to prevent webmasters from manipulating rankings.
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1125:. The Second International WWW Conference Chicago, USA, October 17–20, 1994.
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298:. Initially, all webmasters only needed to submit the address of a page, or
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247:. Unpaid traffic may originate from different kinds of searches, including
2270:. Brisbane, Australia: Stanford InfoLab Publication Server. Archived from
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programs to enable site owners to measure results, and improving a site's
325:
and visibility in search engine results, creating an opportunity for both
3444:
3320:
2716:"The Battle Between Search Engine Optimization and Conversion: Who Wins?"
1384:"Sites Get Dropped by Search Engines After Trying to 'Optimize' Rankings"
739:
735:
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283:(SERP). These visitors can then potentially be converted into customers.
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strategy, SEO considers how search engines work, the computer-programmed
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3205:
was created from a revision of this article dated 20 May 2008
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478:, involved the creation of thousands of sites for the sole purpose of
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United States District Court for the Northern District of California
1071:. Journal of Scholarly Publishing. pp. 176–190. Archived from
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The leading search engines, such as Google, Bing, and Yahoo!, use
571:
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3088:
2959:"Stats Show Google Dominates the International Search Landscape"
2871:"Schmidt's testimony reveals how Google tests algorithm changes"
593:
353:
3269:
2060:"Google Penguin looks mostly at your link source, says Google"
1687:. Proceedings of the 31st VLDB Conference, Trondheim, Norway.
747:
3054:"Search King, Inc. v. Google Technology, Inc., CIV-02-1457-M"
1594:"The Anatomy of a Large-Scale Hypertextual Web Search Engine"
344:
relied on webmaster-provided information such as the keyword
3183:
2598:"High Accessibility Is Effective Search Engine Optimization"
550:
In October 2019, Google announced they would start applying
2150:"Submitting To Directories: Yahoo & The Open Directory"
1152:"Intro to Search Engine Optimization | Search Engine Watch"
1120:"Finding What People Want: Experiences with the WebCrawler"
2515:"Search Engine Showdown: Black hats vs. White hats at SES"
828:. That market share is achieved in a number of countries.
223:) is the process of improving the quality and quantity of
1231:, WORLD SCIENTIFIC, pp. 189–211, November 17, 2020,
1005:
Giomelakis, Dimitrios; Veglis, Andreas (April 2, 2016).
615:
crawlers may look at a number of different factors when
2090:"FAQ: All About The New Google "Hummingbird" Algorithm"
1563:""By the Data: For Consumers, Mobile is the Internet"
701:
Common white-hat methods of search engine optimization
2030:"What You Need to Know About Google's Penguin Update"
1279:
Pringle, G., Allison, L., and Dowe, D. (April 1998).
1183:"Who Invented the Term "Search Engine Optimization"?"
746:
example was the February 2006 Google removal of both
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of web pages accessible via multiple URLs, using the
580:
algorithm. Percentage shows the perceived importance.
239:. SEO targets unpaid traffic (known as "natural" or "
3494:
3468:
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3401:
3360:
3329:
3303:
2806:"Mobile web usage overtakes desktop for first time"
2180:"What is a Sitemap file and why should I have one?"
859:of web pages, registration of a domain name with a
766:campaigns, depending on the site operator's goals.
609:; however, this practice was discontinued in 2009.
2804:
1680:Zoltan Gyongyi & Hector Garcia-Molina (2005).
879:On October 17, 2002, SearchKing filed suit in the
3236:Google Search Quality Evaluators Guidelines (PDF)
2442:"Google Downgrades Nofollow Directive. Now What?"
1842:. www.searchenginejournal.com. October 25, 2007.
333:SEO practitioners. According to industry analyst
2545:"Black Hat/White Hat Search Engine Optimization"
2120:"Understanding searches better than ever before"
451:, is a function of the quantity and strength of
2268:Seventh International World-Wide Web Conference
1810:"Google Personalized Search Leaves Google Labs"
3196:
321:Website owners recognized the value of a high
3281:
2262:Cho, J.; Garcia-Molina, H.; Page, L. (1998).
1505:
1503:
1064:Beel, Jöran; Gipp, Bela; Wilde, Erik (2010).
302:, to the various engines, which would send a
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8:
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1353:"Is Keyword Density Still Important for SEO"
1305:: CS1 maint: multiple names: authors list (
1283:. Proc. 7th Int. World Wide Web Conference.
2988:
2986:
2984:
1840:"8 Things We Learned About Google PageRank"
1096:Ortiz-Cordova, A. and Jansen, B. J. (2012)
807:has become increasingly important for SEO.
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3274:
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204:
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38:
30:"SEO" redirects here. For other uses, see
3022:"Google UK closes in on 90% market share"
2264:"Efficient crawling through URL ordering"
1778:Christine Churchill (November 23, 2005).
1715:"Google Keeps Tweaking Its Search Engine"
243:" results) rather than direct traffic or
3213:, and does not reflect subsequent edits.
3118:. blog.ericgoldman.org. March 20, 2007.
696:
27:Practice of increasing online visibility
2768:""Search Quality Evaluator Guidelines"
2547:. searchengineguide.com. Archived from
2476:. Fountainhead Press. pp. 171–187.
2440:Jill Kocher Brown (February 24, 2020).
1592:Brin, Sergey & Page, Larry (1998).
1415:Adam L. Penenberg (September 8, 2005).
1281:"What is a tall poppy among web pages?"
967:
532:In February 2011, Google announced the
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127:
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3563:Promotion and marketing communications
3034:from the original on December 17, 2013
2901:"Search Engines as Leeches on the Web"
2421:from the original on December 26, 2008
2385:Official Google Webmaster Central Blog
2381:"Updating the user agent of Googlebot"
2355:Official Google Webmaster Central Blog
2331:from the original on February 22, 2019
2325:Official Google Webmaster Central Blog
2300:from the original on February 22, 2019
2100:from the original on December 23, 2018
2040:from the original on December 20, 2012
1894:. searchengineland.com. June 3, 2009.
1725:from the original on November 10, 2017
1565:Google for Entrepreneurs Startup Grind
1517:from the original on September 9, 2014
1298:
372:By heavily relying on factors such as
3096:from the original on December 1, 2010
3084:"Judge dismisses suit against Google"
3001:from the original on November 6, 2010
2995:"Search Engine Optimizing for Europe"
2926:Graham, Jefferson (August 26, 2003).
2877:from the original on January 17, 2012
2817:from the original on January 10, 2022
2748:from the original on October 30, 2022
2632:"Ramping up on international webspam"
2467:
2465:
2463:
2448:from the original on January 25, 2021
2361:from the original on November 6, 2020
2130:from the original on January 27, 2021
1924:from the original on December 8, 2009
1816:. Search Engine Watch. Archived from
1780:"Understanding Search Engine Patents"
1661:from the original on January 25, 2009
1600:from the original on October 10, 2006
1382:David Kesmodel (September 22, 2005).
1332:from the original on October 30, 2007
1320:Laurie J. Flynn (November 11, 1996).
1045:from the original on October 30, 2022
936:, the opposite of search manipulation
738:. Another category sometimes used is
693:White hat versus black hat techniques
259:, news search, and industry-specific
7:
2907:from the original on August 25, 2012
2212:from the original on August 14, 2022
1898:from the original on August 14, 2009
1872:from the original on January 6, 2010
1846:from the original on August 19, 2009
1649:Thompson, Bill (December 19, 2003).
1573:from the original on January 6, 2016
1488:from the original on January 9, 2009
1482:"Google's Guidelines on Site Design"
1363:from the original on August 16, 2016
1261:from the original on August 14, 2022
1162:from the original on October 9, 2020
2784:from the original on March 29, 2019
2742:"SEO Tips and Marketing Strategies"
2689:IUP Journal of Knowledge Management
2577:from the original on April 16, 2006
2517:. SearchEngineWatch. Archived from
2490:. www.bing.com. February 12, 2009.
2070:from the original on April 21, 2017
2010:from the original on April 23, 2022
1749:"Rundown On Search Ranking Factors"
1396:from the original on August 4, 2020
1287:from the original on April 27, 2007
3256:The Dirty Little Secrets of Search
3148:from the original on June 22, 2008
2638:from the original on June 29, 2012
2391:from the original on March 2, 2020
2319:Phan, Doantam (November 4, 2016).
2231:Sullivan, Danny (March 12, 2007).
1980:from the original on April 7, 2019
1950:from the original on June 18, 2010
1918:"Personalized Search for everyone"
1694:from the original on June 12, 2007
1543:from the original on June 22, 2023
1459:from the original on June 26, 2012
1429:from the original on March 4, 2016
976:"SEO – search engine optimization"
435:In 1998, two graduate students at
25:
3122:from the original on May 11, 2008
3063:from the original on May 27, 2008
2969:from the original on May 23, 2011
2957:Greg Jarboe (February 22, 2007).
2938:from the original on May 17, 2007
2869:Matt McGee (September 21, 2011).
2836:Andy Greenberg (April 30, 2007).
2714:Melissa Burdon (March 13, 2007).
2668:from the original on May 22, 2007
2494:from the original on June 7, 2014
2186:from the original on July 1, 2007
1759:from the original on May 28, 2007
1630:from the original on May 31, 2014
1417:"Legal Showdown in Search Fracas"
1351:Jason Demers (January 20, 2016).
3195:
3020:Jack Schofield (June 10, 2008).
2803:Titcomb, James (November 2016).
2608:from the original on May 4, 2007
2596:Andy Hagans (November 8, 2005).
2156:. March 12, 2007. Archived from
1944:"Our new search index: Caffeine"
1181:Danny Sullivan (June 14, 2004).
1132:from the original on May 8, 2007
986:from the original on May 9, 2019
62:Local search engine optimisation
3082:Stefanie Olsen (May 30, 2003).
2000:"Google Search Quality Updates"
1970:"Relevance Meets Real-Time Web"
348:or index files in engines like
2928:"The search engine that could"
1713:Hansell, Saul (June 3, 2007).
674:title tag and meta description
423:In 2015, it was reported that
1:
3059:. docstoc.com. May 27, 2003.
2993:Mike Grehan (April 3, 2006).
2351:"The new evergreen Googlebot"
1322:"Desperately Seeking Surfers"
1023:10.1080/21670811.2015.1046992
795:SEO may generate an adequate
768:Search engine marketing (SEM)
576:A simple illustration of the
2206:"Search Console - Crawl URL"
881:United States District Court
1511:"Bing Webmaster Guidelines"
359:manipulating their rankings
3579:
3538:Search engine optimization
3378:Online identity management
3297:Search engine optimization
2838:"Condemned To Google Hell"
2718:. Grok.com. Archived from
1237:10.1142/9789811225017_0009
950:Search engine results page
863:in the target market, and
635:
557:Search Engine Results Page
281:search engine results page
217:Search engine optimization
57:Search engine optimization
29:
3373:Social media optimization
3311:Robots exclusion standard
1946:. Google: Official Blog.
1651:"Is Google good for you?"
638:Robots exclusion standard
340:Early versions of search
3144:. blog.ericgoldman.org.
2094:www.searchengineland.com
537:is not unique. The 2012
431:Relationship with Google
3368:Search engine marketing
2444:. Practical Ecommerce.
2321:"Mobile-first Indexing"
1225:"The Challenge is Open"
929:Search engine marketing
394:reported on a company,
96:Search engine marketing
18:Search engine optimizer
3191:
3171:Listen to this article
2664:. mattcutts.com/blog.
2634:. mattcutts.com/blog.
2096:. September 26, 2013.
1747:(September 29, 2005).
1455:. mattcutts.com/blog.
1453:"Confirming a penalty"
1210:June 17, 2013, at the
1104:March 4, 2016, at the
955:Search engine scraping
924:List of search engines
919:Competitor backlinking
867:that provides a local
702:
682:canonical link element
581:
143:Contextual advertising
67:Social media marketing
3190:
2662:"Recent reinclusions"
2543:(November 16, 2004).
1814:searchenginewatch.com
1682:"Link Spam Alliances"
1156:searchenginewatch.com
982:. December 19, 2001.
885:tortious interference
811:International markets
790:Google Search Console
758:As marketing strategy
700:
663:Increasing prominence
598:Google Search Console
575:
3553:Internet terminology
3247:Webmaster Guidelines
3230:Webmaster Guidelines
3222:More spoken articles
2660:(February 7, 2006).
2630:(February 4, 2006).
2551:on November 17, 2004
2521:on February 22, 2007
2472:Morey, Sean (2008).
2294:"Mobile-first Index"
2126:. October 25, 2019.
2066:. October 10, 2016.
1866:"PageRank sculpting"
1626:. October 15, 2008.
1451:(February 2, 2006).
1205:Google groups thread
1078:on November 18, 2017
852:are market leaders.
797:return on investment
678:URL canonicalization
501:attribute on links.
418:Bing Webmaster Tools
148:Behavioral targeting
32:Seo (disambiguation)
3507:Human search engine
3347:Display advertising
3304:Exclusion standards
3262:(February 12, 2011)
3241:Webmaster resources
2963:Search Engine Watch
2899:(January 9, 2006).
2237:Search Engine Watch
2154:Search Engine Watch
1820:on January 25, 2009
1790:on February 7, 2007
1784:Search Engine Watch
1753:Search Engine Watch
1567:September 20, 2015"
1389:Wall Street Journal
1187:Search Engine Watch
781:mobile local search
632:Preventing crawling
600:, for which an XML
437:Stanford University
391:Wall Street Journal
157:Affiliate marketing
129:Display advertising
110:Cost per impression
42:Part of a series on
3558:Online advertising
3402:Search engine spam
3337:Online advertising
3260:The New York Times
3192:
2772:November 12, 2015"
2474:The Digital Writer
2415:Search Engine Land
2064:Search Engine Land
1158:. March 12, 2007.
1011:Digital Journalism
703:
582:
544:Google Hummingbird
517:, and JavaScript.
383:ranking algorithms
268:Internet marketing
180:Mobile advertising
87:Native advertising
77:Referral marketing
48:Internet marketing
3543:Digital marketing
3525:
3524:
3188:
2722:on March 15, 2008
2036:. June 20, 2012.
1246:978-981-12-2500-0
1229:Brain vs Computer
1193:on April 23, 2010
1118:Brian Pinkerton.
945:Website promotion
934:Search neutrality
805:web accessibility
214:
213:
82:Content marketing
16:(Redirected from
3570:
3361:Search marketing
3330:Marketing topics
3290:
3283:
3276:
3267:
3212:
3210:
3199:
3198:
3189:
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2893:
2887:
2886:
2884:
2882:
2866:
2860:
2859:
2857:
2855:
2846:. Archived from
2833:
2827:
2826:
2824:
2822:
2808:
2800:
2794:
2793:
2791:
2789:
2783:
2776:
2770:How Search Works
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2526:
2513:Andrew Goodman.
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2284:
2283:
2281:
2279:
2274:on July 14, 2019
2259:
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2248:
2239:. Archived from
2228:
2222:
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2019:
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1800:
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1797:
1795:
1786:. Archived from
1775:
1769:
1768:
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1735:
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1732:
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1200:
1198:
1189:. Archived from
1178:
1172:
1171:
1169:
1167:
1148:
1142:
1141:
1139:
1137:
1131:
1124:
1115:
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1002:
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972:
875:Legal precedents
861:top level domain
590:Yahoo! Directory
206:
199:
192:
115:Search analytics
39:
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3577:
3573:
3572:
3571:
3569:
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3460:Organic linking
3433:
3397:
3356:
3342:Email marketing
3325:
3299:
3294:
3226:
3225:
3214:
3208:
3206:
3203:This audio file
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2422:
2417:. May 8, 2007.
2409:
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2256:
2246:
2244:
2243:on May 10, 2007
2230:
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2178:
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2160:on May 19, 2007
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1968:
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1762:
1760:
1745:Sullivan, Danny
1743:
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1738:
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1218:
1212:Wayback Machine
1196:
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777:conversion rate
760:
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570:
568:Getting indexed
565:
522:Google Caffeine
433:
374:keyword density
289:
261:vertical search
257:academic search
225:website traffic
210:
171:Revenue sharing
166:Cost per action
72:Email marketing
35:
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3486:Barry Schwartz
3483:
3478:
3476:Danny Sullivan
3472:
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3383:Paid inclusion
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3253:
3251:Microsoft Bing
3244:
3238:
3233:
3215:
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3182:
3169:
3168:
3166:
3165:External links
3163:
3160:
3159:
3133:
3107:
3074:
3045:
3012:
2980:
2949:
2918:
2888:
2861:
2850:on May 2, 2007
2828:
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1991:
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1868:. Matt Cutts.
1857:
1831:
1801:
1770:
1736:
1719:New York Times
1705:
1672:
1641:
1611:
1584:
1554:
1528:
1499:
1470:
1440:
1422:Wired Magazine
1407:
1374:
1343:
1326:New York Times
1312:
1271:
1245:
1216:
1173:
1143:
1110:
1089:
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1017:(3): 379–400.
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817:Danny Sullivan
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652:root directory
636:Main article:
633:
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607:cost per click
569:
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539:Google Penguin
527:Google Instant
432:
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335:Danny Sullivan
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724:
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686:301 redirects
683:
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450:
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3502:Geotargeting
3419:Scraper site
3414:Web scraping
3316:Meta element
3296:
3150:. Retrieved
3136:
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1624:Entrepreneur
1623:
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1513:. bing.com.
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1059:
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1014:
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979:
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914:Blog network
889:
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838:Yahoo! Japan
830:
819:stated that
814:
801:Eric Schmidt
794:
761:
750:Germany and
744:
740:grey hat SEO
725:
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253:video search
249:image search
245:paid traffic
220:
216:
215:
56:
36:
3393:Google bomb
3243:from Yahoo!
3232:from Google
2788:January 11,
2752:October 30,
2541:Jill Whalen
2498:October 30,
2335:January 16,
2044:December 6,
2004:Google Blog
1974:Google Blog
1876:January 12,
1049:October 30,
940:User intent
865:web hosting
857:translation
785:StatCounter
445:Sergey Brin
304:web crawler
138:Ad blocking
3532:Categories
3512:Stop words
3481:Matt Cutts
3409:Spamdexing
3218:Audio help
3209:2008-05-20
3030:. London.
2881:January 4,
2701:1430517207
2658:Matt Cutts
2628:Matt Cutts
1984:January 4,
1902:August 17,
1850:August 17,
1577:January 8,
1537:"Sitemaps"
1449:Matt Cutts
1433:August 11,
1367:August 15,
1166:October 7,
962:References
869:IP address
708:spamdexing
644:robots.txt
507:JavaScript
503:Matt Cutts
476:link farms
441:Larry Page
406:Matt Cutts
342:algorithms
292:Webmasters
272:algorithms
3424:Link farm
2997:. Click.
2932:USA Today
2821:March 17,
2726:April 10,
2581:April 18,
2304:March 19,
2190:March 19,
2104:March 17,
2074:April 20,
2014:March 21,
1492:April 18,
1255:243130517
1082:April 18,
1039:166902013
1031:2167-0811
980:Webopedia
773:analytics
716:black hat
712:white hat
657:sunsetted
464:meta tags
363:Altavista
331:black hat
327:white hat
263:engines.
3445:Backlink
3321:nofollow
3220: ·
3152:June 23,
3146:Archived
3126:June 23,
3120:Archived
3094:Archived
3061:Archived
3038:June 10,
3032:Archived
3027:Guardian
2999:Archived
2967:Archived
2936:Archived
2905:Archived
2875:Archived
2815:Archived
2779:Archived
2746:Archived
2697:ProQuest
2666:Archived
2636:Archived
2606:Archived
2575:Archived
2492:Archived
2446:Archived
2419:Archived
2395:March 2,
2389:Archived
2365:March 2,
2359:Archived
2329:Archived
2298:Archived
2210:Archived
2184:Archived
2128:Archived
2098:Archived
2068:Archived
2038:Archived
2008:Archived
1978:Archived
1948:Archived
1922:Archived
1896:Archived
1870:Archived
1844:Archived
1757:Archived
1723:Archived
1689:Archived
1659:Archived
1655:BBC News
1628:Archived
1598:Archived
1571:Archived
1541:Archived
1515:Archived
1486:Archived
1457:Archived
1427:Archived
1400:July 30,
1394:Archived
1361:Archived
1330:Archived
1301:cite web
1285:Archived
1259:archived
1208:Archived
1160:Archived
1127:Archived
1102:Archived
1043:Archived
984:Archived
907:See also
897:San Jose
736:cloaking
648:meta tag
625:Chromium
617:crawling
586:crawlers
578:Pagerank
499:nofollow
460:Internet
449:PageRank
414:Sitemaps
367:Infoseek
346:meta tag
276:keywords
233:web page
3438:Linking
3207: (
3178:minutes
3100:May 10,
3067:May 23,
3005:May 14,
2973:May 15,
2942:May 15,
2911:May 14,
2247:May 15,
2164:May 15,
2134:May 12,
2034:Inc.com
1954:May 10,
1729:June 6,
1665:May 16,
1634:May 30,
1547:July 4,
1197:May 14,
901:Rule 11
826:Hitwise
714:SEO or
684:or via
602:Sitemap
563:Methods
511:iframes
472:Inktomi
323:ranking
316:indexer
312:indexed
287:History
241:organic
229:website
3469:People
2854:May 9,
2843:Forbes
2699:
2672:May 9,
2642:May 9,
2612:May 9,
2555:May 9,
2525:May 9,
2425:May 9,
2278:May 9,
2124:Google
1794:May 8,
1763:May 8,
1698:May 9,
1604:May 8,
1463:May 9,
1357:Forbes
1336:May 9,
1291:May 8,
1253:
1243:
1136:May 7,
1037:
1029:
990:May 9,
850:Seznam
846:Yandex
821:Google
489:, and
425:Google
350:ALIWEB
266:As an
3495:Other
3249:from
3057:(PDF)
2782:(PDF)
2775:(PDF)
1692:(PDF)
1685:(PDF)
1251:S2CID
1130:(PDF)
1123:(PDF)
1076:(PDF)
1069:(PDF)
1035:S2CID
842:Naver
834:Baidu
764:(PPC)
752:Ricoh
542:2013
534:Panda
515:Flash
491:Yahoo
401:Wired
308:crawl
235:from
231:or a
227:to a
3154:2008
3128:2008
3102:2007
3089:CNET
3069:2008
3040:2008
3007:2007
2975:2007
2944:2007
2913:2007
2883:2012
2856:2007
2823:2018
2790:2016
2754:2022
2728:2017
2674:2007
2644:2007
2614:2007
2583:2007
2557:2007
2527:2007
2500:2009
2454:2021
2427:2007
2397:2020
2367:2020
2337:2019
2306:2018
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2249:2007
2218:2015
2192:2007
2166:2007
2136:2020
2106:2018
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2046:2012
2016:2012
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1852:2009
1826:2009
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1435:2016
1402:2008
1369:2016
1338:2007
1307:link
1293:2007
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1241:ISBN
1203:See
1199:2007
1168:2020
1138:2007
1084:2010
1051:2022
1027:ISSN
992:2019
848:and
594:DMOZ
592:and
552:BERT
487:Bing
468:game
443:and
365:and
354:HTML
329:and
3258:in
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1019:doi
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732:div
306:to
300:URL
296:Web
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