Google Filters and Avoiding their Screens

Google Filters and Avoiding their Screens:

"Possible Link Related Filters"

Identical link text
Recripricol links damped
Links pages/ guest books filtered
Interlinking on same IP filtered: Many observers have noticed a cross linking filter resulting from cross linking together too many sites from the same server and especially from the same c level block. A c level block is the part of a website address in the third section. Example: 123.123.xxx.123 xxx = c level There is some belief that the threshold trigger for that filter is about 20 linked sites.

Duplicate content may not only trigger a filter, but sites that contain a large number of pages that are similar in content might be targeted.

The sandbox filter allegedly works this way. A new site will receive a fresh site bonus from Google and rank highly. Following that initial blush with fame and fortune, the site will drop in the search rankings, and drop, and then drop some more. That is where the alleged sandbox occurs.

Once in the sandbox, the site will be anywhere from two to four months rising in the SERPs to a respectable position. During that sandbox period, regardless of the number and quality of inbound links and the PageRank, that site will not rank well at all. It is thought that gaining too many links too quickly might be part of the reason for the sandbox. On the other hand, building up a domain with incoming links prior to site launch may help avoid the sandbox entirely.