directory. Yahoo! included in the site, because all with the introduction of information, so the search efficiency significantly improved. (Note: After Yahoo, there are AltaVista, Inktomi, Google to provide search engine services)
Yahoo!---almost become synonymous with the the 1990s Internet.
Development (4):
1995, a new search engine form emerged--meta search engine (meta search Engine). Users only need to submit a search request, the meta-search en
early form of the Internet search engine, still occupies an important position. Yahoo is from a single search engine development to now have E-commerce, news information Services, personal free e-mail services, such as a variety of network services,
2. Machine search engine. The programs run by large-scale machines automatically collect and discover information in the Internet according to a certain strategy, indexing the information collected by the indexer, retrieving the index library accord
all the same copy to copy, and not comprehensive, I have organized a more comprehensive code:
Copy Code code as follows:
function Is_spider () {
$robot = 0;
$USER _agent = strtolower ($_server[' http_user_agent '));
if (Strpos ($USER _agent, "Bot")) $robot = 1;
if (Strpos ($USER _agent, "spider")) $robot = 1;
if (Strpos ($USER _agent, "slurp")) $robot = 1;
if (Strpos ($USER _agent, "Mediapartners-google")) $robot = 1;
if (Strpos ($USER _agent, "Fast-webcrawler"))
, the use of good translation functions1. Screen word Ubuntu star translation Support screen word-taking function, the program runs the default to open the word-taking function. When you take a word, move the cursor to a word, such as "share" in the terminal window, and double-click to select the Word, and the Word's interpretation window appears. 2. The word audible Ubuntu star to support the word reading function. If you want to hear the pronunciation of the words normally in the Ubuntu StarCr
, you will notice that it has a small icon, and if you click into it again, you will find a small icon in the address bar. Now you can easily implement this feature by adding this phrase to your page header. 3, Base (Basis link)
Description: Insert Web page Base link PropertiesUsage: Note: All the relative paths on your page will be preceded by a "http://www.webjx.com/" in the link. where target= "_blank" is a linked file opens in a new window, you can do other settings. Change "_blank" to "_par
, began a systematic deletion of sites in its index site that use the link program in the second half of the 2000 year. AltaVista also developed a similar cleanup program, but due to recent problems, the program has not been implemented for the time being.
Don't the operator of the linker know this?
Of course they know, but that doesn't prevent them from selling their products and expanding their businesses. It's like tobacco companies know that c
to imagine the motives of these companies are not simply to improve the quality of search, but in order to make money, a company in order to make money is understandable, just feel, even if the page is carefully designed, but because it can not be included in the search engine free of charge, it seems that the slogan with the company propaganda is very different
Regardless of these questions, let's take a look at the current number of search engine site charges.
(1) looksmar.com
At the end of 1
be based on the existence of the "keyword" search to the site. Then other search engines such as AltaVista, Excite, Lycos and so on have been launched for users to use search tools. Most of them identify the dependencies of the site based on the keywords found in the META tags.
Things seem to be going very well, but when the station owner and network Management realized that you can insert industry keywords or other site codes in meta tags, you
remember that users quickly and easily get the information needed is the most important.
For web designers, you must learn to track the web design of new technologies such as Java, DHTML, XML, etc., according to the content of the site and the needs of the form of a reasonable application to the design. 12, the promotion of your web address
After the website is built, how to let more people know your website? The following measures are recommended:
Use of traditional media (such as print advert
the homepage you are designing?
Tramps on the internet---Web Robot
Sometimes you will somehow find that the content of your homepage is indexed in a search engine, even if you have never had any contact with them. This is actually the credit of Web robot. Web robot is actually a program that can traverse the hypertext structure of a large number of Internet URLs and recursively retrieve all the content of the Web site. These programs are sometimes called "Spiders (Spider)", "Internet tramps (
following several parameters:
1.Keywords (keywords)
Description: Keywords is used to tell search engines what the keywords are on your page.
For example: Relationships, the meaning of Life, science ">
2.description (Introduction)
Description: Description used to tell the search engine your site's main content.
For example: Life, the Universe, mankind and plants. >
3.robots (Robot Wizard)
Description: Robots are used to tell search bots which pages need to be indexed and which pages do not ne
version, modify the Require ("ENGLISH.INC.PHP3") in the config.inc.php3, or require ("chinese_gb.inc.php3"). So the interface is Chinese. Oh, great!
Save Config.inc.php3.
Installation Note
Please confirm that the phpMyAdmin directory is protected. There is no protection by default! It should not be read by a random person, especially a search engine.
Although I have added a "nofollow" directive to each page, it is possible that some search engines do not consider links that still continue to ac
the resulting page from the Submit form to the Favorites folder, this favorite is not available because it does not contain the submitted data. Also, incidentally, search engines like AltaVista always use query strings to submit query criteria, mainly because they are designed to make it easier for users to add query results pages to favorites so that they can do the same search in the future because the search criteria are included in the URL.
Here
deletion of sites in its index site that use the link program in the second half of the 2000 year. AltaVista also developed a similar cleanup program, but due to recent problems, the program has not been implemented for the time being.
don't the operator of the linker know this?
Of course they know, but that doesn't prevent them from selling their products and expanding their businesses. It's like tobacco companies know that cigarettes are bad for h
except AltaVista, Google explicitly supports image hotspot links. When the "Spider" Program encounters this structure, it will be indistinguishable. As a result, try not to set up a link to the image hotspot (images Map).
14. Flash Application
Flash because it does not contain text information, should be used as far as possible for functional display and advertising, less for site columns and pages.
15. js Script
In the browser does not support JS fo
engine is the most widely used one of the most, generally speaking search engine refers to the full-text search engine.Full-Text search engineFull-Text search engine is a veritable search engine, foreign representative of Google, Fast/alltheweb, AltaVista, Inktomi, Teoma, WISEnut, etc., the domestic famous Baidu, China search and so on. They are in a database that is based on information from various websites extracted from the Internet (based on w
. Before you start the search, determine a set of keywords based on the domain, category, and nature of your ideas. To determine the keyword also imagine the average browser to find this type of information on the Internet, which keywords commonly used. Then choose the world's most famous navigation platform, such as Yahoo, AltaVista, InfoSeek, WebCrawler, HotBot, Excite, Lycos, Planetsearch, and so on, with your identified keywords in the navigator s
information, different people for the same image of the understanding is not the same, which leads to the annotation of the image does not have a unified standard, Therefore, the results of the search can not meet the needs of users well.
Content-based retrieval is different from keyword based retrieval, and it does not require too much human participation, and it has a strong objectivity to use the characteristics of the image (such as color, texture, shape, etc.) to retrieve. However, because
text, such as the return of the homepage link only write "Home" two words of the example is not uncommon.Back chain (backlink)/Import link (inbound links)/Export link (outbound links)The import link and the back chain (also called the reverse link) the same meaning, refers to the link to your site, that is, we generally say "external links." And when you link to another site, then this site is your "export link." So the export link is you to other sites to provide the site link.In theory, the l
has made many people aware of this, but I think we need to keep an eye on the next generation of adjustments. (Technode Note: Florida update is Google in early November 2003, the ranking algorithm began a drastic update, it lasted several months, swept the original rankings of many sites, so many sites in the upcoming Christmas shopping gold time to lose a large number of tourists. This large-scale adjustment is Google's counterattack black-hat seo to make spam sites to obtain an illegal rankin
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