"Dead link" has a big impact on the site rankings

Absrtact: The construction of the chain is the pillar of the growth and development of the Web site, a site to be successful must be a focus on the link itself to the optimization, but the link construction process, we will inevitably encounter a series of problems, such as in the forum post and add their own chain

Outside the chain construction is the website growth development Pillar, a site to achieve success is bound to the link itself to carry out a focus on optimization, but the link construction process, we will inevitably encounter a series of problems, such as in the forum post then add their own links, if the posts are included in Baidu, then the ranking of the site is certainly good, But has done this optimization SEO all know the forum although easy to add their own links, but also easy to lose their own links, once lost links, then the impact on the site rankings can be huge, and sometimes even let the site ranked the previous several fell to 10 pages later. This time the link becomes a dead link, no use whatsoever.

What is a dead link?

In fact, dead link is just the author introduced that, no utility links, spiders can not crawl links. This kind of link is not useful to the website construction, but will affect the website optimization work. Imagine spiders indexed site content, found that many links can not reach, virtually to the spider left an unfriendly impression, after the optimization work also increased the difficulty.

What negative impact does it have on the site?

1. The first will lead to a decrease in the number of Web sites, ranking decline, because many links are invalid, so spiders in the crawl content, often is flapping empty, so the amount of the site is bound to decline.

2. Loss PR value. We all know that the site PR value is passed, although now Google withdrew from the Chinese market, but the PR value is not useless, in some forums, the PR value is still the webmaster measures the quality of the key indicators, but the presence of dead links will inevitably allow the site to pass the PR value when the "fault", Take my website 198 Traffic Exchange Alliance, if the site is flooded with a lot of dead links, then even if you use the DIV program to "lure" spider crawling, the effect is not obvious, because the large range of dead links appear. will make the site structure more bare, more difficult to crawl.

3. Loss of the user experience of the website. Imagine a strange visitors to their own web site access, if you open 10 Web sites appear 9 inaccessible, this will allow users how to think of their own site? must be an amateur plus rough combination! And I want to warn you that this part of the flow of the loss is irreversible!

How to detect a dead link in a Web site?

1. Sitemap can be generated at the same time the site map, the site of their own dead link to display all.

2. The same truth, Google Administrator tools also have this effect, in the data column, we can query to Google did not crawl to all the links.

How to deal with dead links?

1. Manually Delete dead links

The most important thing is to find the root of the illness this can be the right remedy, shorten the patient's time of illness, web site construction is the case, to deal with the dead link when we'd better find the location of the dead link itself, and then manually delete the page, this is easier, but once the site online longer, the domain name used for a long time, Although we can also use webmaster tools to find out the number of dead links exist, but the deletion is not very easy, it will be very difficult, so we must do a good job in the construction of the site to prevent the existence of all dead links, once found, delete immediately.

2. Use robots to screen possible web pages

Also take a doctor as an example, sometimes we can not find the cause of the patient, as the site of the dead link, then we do not have to deal with the site dead link? Certainly not, since cannot find the website dead link, then expands the processing scope, uses the robots to screen the possible webpage as well as the link, Editing method is also very simple, just want to add disallow in the language: Dead link absolute URL This statement can be, tell spider this page is invalid, prohibit grasping to the website link. Then upload your edited statement to the site directory.

PS: But there is still a problem, that is, if the site itself through the revision of the existence of a large number of dead links, then this method is still effective? After the author's hands-on practice, found that if the site after the revision, content and the structure of the site will inevitably have a larger change, At this time the simple use of the language of the Web page to simply screen the effect is not obvious, at this time we need to use 301 Redirect, the various network requests directly to other pages.

3.401 error page Reminders

If your site is online for a long time, page collection is 100,000 levels, using the 301 Redirect method appears some time, if the webmaster want to lighten the burden, 404 error page may be a good choice, we can through 404 error page will guide users to the site we want them to visit, Jump time in 8 seconds or so the most appropriate, and then add in the page you want the URL hint, but the best is the user click on their own, which will reduce the automatic jump to bring the user antipathy. However, the 404 error page will only be available in the case of unreachable prompts, the individual or recommend that you use 301 Redirect, the user request direct conversion.

In any case, the existence of dead links for the site is an unstable factor, so the author here to warn everyone in the process of site construction to maintain the site, in time to eliminate the site dead link, so as not to increase their own unnecessary maintenance difficulties.