Search engine crawlers may look at a number of different factors when crawling the site. Not indexed every page by the search engines. Has a distance of pages from the root directory of the site also be a factor in whether or not pages get crawled. [30]
Major search engines, like Google, Yahoo and Bing, and the use of reptiles to be found on the pages of search results for my account. Pages that are linked from other search engine indexed pages do not need to submit because they are found automatically. Some search engines, Yahoo and private, working on a paid service that guarantee crawling to identify any fees or cost per click. [30] Such programs usually guarantee inclusion in the database, but does not guarantee a specific classification within the search results. [31] two of the home directories, and directory Yahoo and the Open Directory Project both require manual submission and human editorial review. [32] Google offers Google Webmaster Tools, which can be created summary XML Sitemap and submit them for free to ensure that all of the pages, if any, and pages that can not be detected by following the links automatically. [33]
Preventing crawling
The main article
To avoid undesirable content in the indexes, search, and can cost webmasters spiders not to crawl certain files or directories through the standard robots.txt file in the root directory area. In addition, a page can be explicitly excluded from a database search engine using the specific definition of the robot. When a search engine to visit a site, the robots.txt file located in the root directory is the first file crawled. Then be analyzed file robots.txt, it will cost also robots that pages can not be crawled. As the search engine crawler may keep a copy of this file temporarily, it may sometimes have no desire to crawl pages a webmaster crawl. Usually prevents pages from being crawled include certain pages such as login and the user's shopping carts content such as search results from internal searches. In March 2007, photo sites warned that they should prevent indexing of internal search results because
those pages are considered search spam. [35
Importance of the growing
Can be for a variety of means to increase the emergence of a Web page in search results. Cross linking between the pages of the site itself to provide more links to the pages of the most important may improve its image. [36] the content of writing, which include research in many cases, key phrase, so as to be suitable for a wide range of search queries that will tend to increase the traffic [36]. Update the content so as to keep the search engines crawl again in many cases can give additional weight to the site. Add relevant keywords to the metadata page on the Internet, including the title tag, description, and dead, and will tend to improve the relationship search listings site, thus increasing traffic. It can normalize the URL from the web pages can be accessed through multiple addresses, using the "canonical" tag definition [37] or through the 301 Redirect help make sure links from different versions of each link is a link page and the degree of popularity.
Black circle against a white circle
The methods can be classified as SEO in two broad categories: techniques that search engines recommend as part of good design and those techniques that search engines do not agree. Search engines attempt to minimize the impact of the latter, among them spamdexing. Industry commentators have classified these methods, and practitioners who employ them, either SEO white hat or black hat SEO. [38] 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. [39]
The technique SEO white hat if he agreed with the guidelines of search engines, and involves no deception. As the search engine guidelines [27] [28] [40] is not written as a series of rules or commandments, this is important to note the difference. White hat SEO is not just to follow the guidelines, but is to ensure that the content for the search engine indexes and ranks in later in the same content as the user will see. Advice is generally summed up as a white hat to create the content for users, not for search engines, then making that content easily accessible to the spiders, rather than trying to trick the algorithm from its intended purpose. White hat SEO is in many ways similar to web development that promotes accessibility, [41] although the two are not identical.
Black hat SEO attempts to improve rankings in ways that were not approved by search engines, or involve deception. One method uses a black hat text that is hidden, either text colored similar to the background, so in the Division is not visible, or put it off the screen. Another method gives a different page depending on whether the page is requested by a visitor rights or any search engine, a technique known as blocking.
Search engines may penalize sites that you discover using black hat methods, either by reducing their rankings or eliminating their listings from their databases altogether. Can be applied to these sanctions, either automatically by the search engines algorithms, or by reviewing the site directory. One example is the removal of February 2006 Germany Pictures BMW both Rico and Germany for use of deceptive practices. [42] Both companies, however, apologized at a constant speed, in the pages of the violator, and returned to the list of Google. [43]
Marketing strategy as a
SEO is not an appropriate strategy for each site, and other Internet marketing strategies can be more effective, depending on the objectives of the operator site. [44] is not permissible for a successful Internet marketing campaign also depends on building high quality web pages to engage and persuade, and analyzes the development of programs to enable site owners to measure results, improve the rate of conversion of the site (45).
SEO may generate an adequate return on investment. However, not paid search engines for organic search traffic, and on the algorithms change, and there are no guarantees of ongoing calls. As a result of this lack of guarantees and certainty, can be businesses that rely heavily on search engine traffic to suffer substantial losses if the search engines stop sending visitors. [46] search engine algorithms can change, which affects the development site on the Internet, and may result in a serious loss of traffic. According to chief executive of Google, Eric Schmidt, in 2010, the Google Changes Algorithm more than 500 - approximately 1.5 per day [47] It is considered wise business practice for operators of the Internet to be free from dependence on search engine traffic. [48] Seomoz. ORG has been suggested that the "Search marketers, in a touch of irony, to obtain a very small share of traffic from search engines." Instead, their main sources of traffic and links from other sites. [49]
International markets
Is tuned very optimization techniques for search engines dominant in the target market. Search engine market shares vary from market to market, as well as competition. In 2003, Danny Sullivan stated that Google represented about 75% of all searches. [50] in markets outside the United States, Google's share is often larger, and Google remains the dominant search engine worldwide as of 2007. [51] As of 2006, Google was on the market share of 85-90% in Germany. [52] While there were hundreds of SEO companies in the United States at the time, there were only about five in Germany. [52] As of June 2008, and its market share to Google in the United Kingdom, and was nearly 90% according to the winner. [53] This is achieved market share in a number of countries.
As of 2009, there are only a small number of large markets where Google is not a leading search engine. In most cases, when Google does not lead in a particular market, it still lags behind a local player. The most important emerging markets where this is the case, namely China, Japan, South Korea, Russia and the Czech Republic respectively, where Baidu and Yahoo Japan, Naver, Yandex and Seznam is the leader in the market.
Have a successful search optimization for international markets require professional translation of web pages, domain name registration with the higher level in the target market, and hosting sites that provide the local IP address. Otherwise, the basic elements for improving research are essentially the same, regardless of the language. [52]
Case law
On October 17, 2002, SearchKing suit in U.S. District Court, Western District of Oklahoma, against the Google search engine. The prosecution SearchKin
g that Google tactics to prevent spamdexing constituted interference with contractual relations tort. On May 27, 2003, the Court granted the motion to dismiss the complaint Google because SearchKing "failure to state claim upon which relief may be granted." [54] [55]
In March 2006, the KinderStart lawsuit against Google on search engine rankings. Site has been removed Kinderstart is Google's index before the lawsuit and the amount of traffic to the site dropped by 70%. On March 16, 2007 rejected the U.S. District Court for the Northern District of California (San Jose Division) complaint KinderStart without leave to amend, and granted in part the movement of Google for a Rule 11 sanctions against the lawyer KinderStart, and requiring him to pay part of the Google legal expenses. [56] [57]
See also:
List of search engines
Search Engine Marketing
Search engine optimization copywriting
By reference
Website Promotion
Notes
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