Google calls robots), the pages they are interested in are grouped into three categories:
1. Spiders have never caught a new page.
2. Spiders have been caught, but page content has changed pages.
3. The spider crawled over, but now has deleted the page.
So how to discover these three kinds of pages effectively and crawl, is the original intention and purpose of spider programming. So here's a question, the starting point for spiders to crawl.
Ev
Google calls robots), the pages they are interested in are grouped into three categories:
1. Spiders have never caught a new page.
2. Spiders have been caught, but page content has changed pages.
3. The spider crawled over, but now has deleted the page.
So how to discover these three kinds of pages effectively and crawl, is the original intention and purpose of spider programming. So here's a question, the starting point for spiders to crawl.
Ev
the anatomy of a large-scale hypertextual Web search engine, which is written by Saji-Blin and Larry pages, that is, an academic article translated by Google's two founders before his graduation from Stanford University as "analyzing a large hypertext Web search engine". Google
Do SEO people generally know that the SEO is divided into white caps, Black Caps, and even a gray hat. Simply put, if you read the Google website Quality guide, you can understand, in line with the search engine quality specifications and in line with the user experience of the SEO method known as white hat, violating the sea
Search engine This product in China's wave of the Internet played an irreplaceable role, whether it is Google, Baidu, Yahoo, or later Soso, Sogou and so on. As the search is becoming more and more important to the access of information, the search page design is more and mor
Do SEO people generally know that the SEO is divided into white caps, Black Caps, and even a gray hat. Simply put, if you have read the Google Webmaster Guide, you can understand, in line with the search engine quality specifications and in line with the user experience of the SEO method known as white hat, violating the sear
Wiki definition
SEO is the abbreviation of Search Engine optimization, described in English is touse some technics to made your website in the top places in Search Engine wh En somebody is the using search Engine to find somethin
[Core Tip] At present, all the search engine surface differences are basically reflected in the sidebar, then in this can be called strategically important sidebar how to win this battle?
Search engine has become a vast number of Internet users indispensable network tools, even if the computer does not understand user
a search engine? All of our data are in the database, and Oracle, SQL Server and other databases can also provide query retrieval or clustering analysis function, directly through the database query can not? Indeed, most of our query capabilities can be obtained through database queries, and if the query is inefficient, you can improve efficiency by building database indexes, optimizing SQL, and even by in
considered that the descending order of page weights is on the upper left > right > Left > Right > Left down > Right.
D, the keyword weight tag. Weight, can be understood as important. Weight tags such as
2, Link weight
Internal links. The link between the internal pages of the site, the most weight of the general home page. In the same case, if there are two sites in the home page and the internal pages for comparison, the General page will be ranked in front of the pages.
External links.
When it comes to web search engines, many people will think of Yahoo. Indeed, Yahoo has created an internet search era. However, Yahoo's current technology for searching the web is not the company's original development. In August 2000, Yahoo adopted the technology of Google, a company created by students at Stanford University. The reason is simple: Google's
The basic idea of Google ranking:
All search engines, including Google, want to search for quality websites. therefore, to rank our website well in Google, we must first make our website a high-quality website. The high quality comes from the user experience and the
"Remove URLs from Google Webmaster tools, or use a robots file to screen spiders to crawl a type of link, then Google will automatically remove the content from the index library," There must be a lot of people think so, including me, but in fact this is not entirely true.
First of all, Google Admin Delete Web site tools are mainly used to delete two types of UR
optimize, Google will also update the content of the page, in the Google search, the internal page will appear more frequently than the homepage.
3. From the time of the website to deal with Google. Baidu does not like the new station, the weight of the new station in Baidu is very low, generally have one months of t
The 2012 Chinese search engine industry is not smooth sailing, but with more and more fierce competition, led to a vigorous "3B war" incident, and eventually the government intervened and gradually subsided, but the search engine between the war is far from over, 2012 is just a start. At present, there are many mainstr
Http://ohbug.com/archives/delete-google-app-engine-app.html http://xsinger.co.cc/archives/129
Google App Engine is really a good Internet application service engine. For those who love it, it provides a foundation for you to do so, for common users, you can easily create
Google recently announced an update to the search ranking algorithm, mainly to combat "black hat" search engine optimization technology and some to improve the visibility of the site regardless of the quality of the search results and content relevance of the behavior.
Keyw
Google search results page to add Graphics function Calculator function
Heart-shaped pattern
You can zoom in and zoom out on a graphic
Beijing Time December 6 news, according to focus on the search industry development trends of the U.S. Science and Technology blog site SearchEngineLand Report, Go
Editor's note: This is a wonderful programming teaching article, not only detailed analysis of the principles of the search engine, but also provides the author's own use of PHP to compile some of the ideas of the search engine. The whole article in layman's terms, I believe whether it is a master or rookie, can get a
Seo tool set for Search Engine Optimization
GOOGLE 排名监测工具下载http://www.cleverstat.com/google-monitor.htm查询关键字使用频率工具http://inventory.overture.com/d/searchinventory/suggestion蜘蛛模似器http://www.webconfs.com/search-engine-spider-si
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