Three strokes to share how to deal with a lot of 404 pages

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Following the development of the website, the website has become to meet the needs of the business and enhance the user experience of the only way, the total number of Web site revision is there are many unpredictable factors, of which the site 404 pages always plagued each site to experience the revision of the Webmaster, 404 page of the production or because of the site Or because of the deletion of the site data and content database separation, for the Web site version 404 page I have to share the author's own web site revision treatment of the three means:

Case Description: The author site has been built more than 1 years time, was Baidu included more than 12,000 pages of the site, home page main keyword ranking Baidu first pages, Google has not been affected, the site after the revision because of improper processing has not resulted in Site keywords drop and site down right situation.

One: Standardized URL: Standardized URL is a prerequisite, but also the key

A good health site, because the revision of the wrong URL address is a very frustrating thing; a good healthy website Baidu crawl time and frequency as well as the amount will be very diligent, if the site front-end once there is a very short period of error address will be included, this will affect the site's collection and site snapshots, Even affect the stability of keyword rankings.

Web site A wide range of changes must be the URL address standardization as a prerequisite, the former address can not be accessed before and after the URL address frequent fluctuations, then your station basically no medicine can be; Web site address URL standardization in favor of site error address batch redirection and error address inspection. Here I would like to remind you webmaster must pay attention to content page paging and Channel page search address, these addresses will produce a large number of 404 errors in the concentration.

Two: 301 Redirect: A kind of saving, a kind of transfer

Site revision from one directory to another directory, from dynamic address to pseudo static address, from the directory level 3 to 2, etc., this time 301 redirect is particularly important, 301 Redirect method I think ISS redirect and procedural redirect two, Of course, because the server-side Web server is different and handled differently.

When the site changes the directory and URI address change, this is a batch adjustment range, this relies on the server 301 redirect can not be resolved, this time need for Web site programmers to carry out a lot of directory 301 redirect; If the site generates a page error, be sure to learn the directory batch type ISS redirect. Baidu and Google at present according to the author's own settings, Google 301 redirect effective time in general in 3-7 days, Baidu in 15-30 days.

Three: The Shield of robots: a rule, an afterthought

Use of web site robots to address the designated addresses, the purpose is to prohibit the search crawl the specified directory address, which for the site dynamic address more appropriate, the author's current observation is the full support of Baidu and Google, and other than the other search can not give priority to support robots.

Robots to write to disallow, if you need to completely screen the dynamic address of the site must be in accordance with the format of disallow:/*?* such as input, the author reminds webmaster in the use of robots must use the Google Webmaster tools in the test tools of the robots.

Website revision must not avoid part of the address of the error, the prior assessment and operation methods to master, even if the site appeared the original site address and the site after the website address different URLs, online after the site must not appear a large number of 404 pages, otherwise the site down the right and keyword ranking decline inevitable.

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