Determine 19 features of a spam site

1, the date of the copyright information is not accurate, but also show the last edit date on the page, is not a good site.

2, from the link factory over the huge amount of links. This is obvious, link factory links Many are unrelated sites linked to each other.

3, too many dead links. Such a site gives people the feeling is a site without maintenance, belong to the dead site.

4, the height of the link changes, refers to the page code in the link to the state of change, point to the status of the page changes, very fast. A site link, very unstable, its reliability is low.

5, quickly leave the site, users will soon click the Return button, select another search results. Such a site is likely to deceive the search engine, to get rankings, in fact, the content is completely irrelevant, users have to return to find the right site.

6, too much duplication of content, in a site, many of the content of the page is repeated, such a site must not be a good site.

7, the domain name registration information and before the site of the same penalty received. This belongs to the association, many AdSense publishers have this experience.

8, use or link to those well-known garbage stations. This belongs to the howl perception.

9, the domain name was punished before, or was once a spam site.

10, a site has not been updated for a long time, content achievements.

11, if the site is too long, such as the directory name and filename is very long, it is more obvious to the search engine over the optimization.

12, exchange links with the normal export of the proportion of the link is quite high, this is also the symptoms of excessive SEO.

13, there is no or very little export links, but also a very questionable phenomenon.

14, no or very little import links, no other site attention to this site. The phenomenon is that the value of this site is very low.

15, all the import links are very regular point to the home page, then it is possible that these links are

Unified to make.

16, export links to those spam sites, problematic sites.

17, in the non-adult site, there are many excessive exposure of the language, which is also a bad site logo. Because the site's users from various places, all ages, if the site has adult content, then it should be separated from the parts of the non-adult content.

18, the content of a site mixed without a little correlation, such as a comment on the toy site, while selling insurance or Viagra.

19, database or PHP error.