Backlink

A backreference or backlink denotes an incoming link to a website that leads from another website to this.

In many search engines, the number and nature of back references is used as a measure of link popularity or importance of a website.

In the blogosphere, it is sometimes customary to show his gratitude with a backlink, for example, for you to link a post.

Importance for search engines

On the backlinks of the owner of the website has no direct influence, generally. Therefore, many search engines refer backlinks into their search and scoring algorithms. Google's PageRank algorithm is an example of this. Some search engines evaluate the link texts on references as well as search terms.

Therefore backreferences play a role in search engine optimization. To generate additional backlinks and for influencing the link text and the link popularity serve, among other referrer spam, text link exchange and article directories.

The backlinks tracking done by reading out the referrer in the Logdateianalyse or with the help of search engines. Thus, with many search engines, a query of the form " link: " use to determine which references back to the web page with the specified URL. Often only a selection and not all back references are output by the search engines however.

The targeted building Backreferences by third parties for manipulation of search results is known as a Google bomb. Here the fact is used that the owner of the website does not affect the backreferences.

Software support

Backreferences in weblogs can be automatically exchanged and tracked through trackbacks.

• Net culture
• Search Engine Optimization