Links include internal links (intra-site links, or internal links) and external links (external links, or external links.
The link mentioned here is that the quality of external links (referred to as: External links) seriously affects the PR value of a website.
Example: If your website's PR value is 0. When an external link with a PR value of 6 is linked to your website, your website's PR value may rise to 3 or 4.
PR is a sign of website quality. If your website has a dead link (dead link, or invalid link. Is the link that cannot be reached) will also affect your website PR value. Then, how can I check whether my website has a dead link.
This section describes how to query dead links.
1. Check dead links online
Http://tool.20ju.com/checkurl.aspx
2. xenu link sleuth
Xenu Link Sleuth may be the smallest but most powerful software you have ever seen to check website dead links. You can open a local webpage file to check its link, or enter any URL to check it. It can list the active links of websites separately.
Connections to dead links are clearly analyzed. Multi-threading is supported, and check results can be stored as text files or webpage files.
At the same time, versions 1.2j have added functions such as Google snapshots, alexa rankings, and historical recording of Wayback Machine.
3. HTML link validator
The web page connection check program can help you perform ftp: // and http: // connection checks to see if there is anything that cannot be connected.
4. web link Validator
Web Link Validator is used to enter a URL to test whether the network connection is normal. You can provide any network connection, such as software files, HTML files, and graphic files.
Reasonable construction of intra-site links is one of the important technologies for search engine optimization. Its optimization can make the entire website value recognized by the search engine. In particular, Baidu, if the website can do a good job of intra-site links, can greatly increase the ranking of keywords in the search engine, so that the website can be well promoted.
For intra-site links, 1. Do not use flash2. do not use ongoing images. 3. Do not use js calls. This is a unfriendly performance for search engines. 4. Do not add special characters.