Free spyglass software for linux

SEO SpyGlass is a search engine optimization software which analyzes the backlinks of a Web site and produces reports to help understand why a specific site ranks well for a specific search string.
Main features:
- The total number of backlinks your competitor has;
- The exact URL of each and every backlinks;
- The Google PageRank of both the domain of the backlink and the backlink itself;
- The Alexa Rank of the backlink domain;
- The total number of PageRank 0 to PageRank 10 backlinks your competitor has;
- The exact IP address of every backlink;
- The total number of backlinks coming from the same IP addresses, allowing you to easily identify site-wide links;
- The exact anchor texts your competitors are using;
- The exact anchor URLs of your competitors backlinks;
- The total number of times your competitors keywords appear within the anchor and title text of their backlinks (that is, the anchor and title keyword density);
- Whether or not the backlinks still point to your competitors site;
- How many of your competitors backlinks come from forums and blogs;
- How many of your competitors backlinks come from homepages of other sites, rather than internal pages;
- The total number of outbound links on the Webpage your competitors backlink resides on;
- The total number of links on the Webpage your competitors backlink resides on;
- Whether or not your competitor has backlinks from the Yahoo! Directory;
- Whether or not your competitor has backlinks from DMOZ (ODP) Directory;
- The exact link value of every backlink your competitor has;
- The exact age of every Website linking back to your competitor;
Enhancements:
- This release adds regional versions of Google, Yahoo!, and MSN search engines for Spain, Netherlands, Italy, and Belgium.
- It adds support for the Russian search engine Yandex.
- Human emulation has been added.
- Handling of non-Latin symbols has been improved significantly.
- There are stability and performance improvements.