Today, Internet offers a dozen back link checking tools. Some are useful, some are less; some free, the others are paid. Here is the specification of the back link crawler, developed at PromotionStep. This list itself might be a good piece of tip for both SEO specialists and for newbies. So, seo-friendly back link spider’s specifications / requirement:

1. Find a direct link to our website

2. Analyze robots.txt and page code top detect “no follow” tag

3. Analyze if the link Title has been altered

4. Analyze if the page is linked to the home page

5. Analyze how many outbound links are there on the page

6. Analyze the # of our link among other outbound links (including banners)

7. Analyze if the page is indexed by Google

8. Analyze if our link is present in the cashed page snapshot

9. Analyze if the link to our site is direct at the cashed snapshot of the page

Results should deliver the following info:

1. Present / Not Present on the page2. “No follow” present / absent

3. # of our link among other external links

4. Indexed by Google / Not

5. Last indexation date

6. Direct link is on the Google indexed page / Not

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