Free · no sign-up
See who links to a website
Backlinks, referring domains, dofollow share and the 15 strongest linking sites for any domain.
A few lookups per visitor per day. For the full version with no limits, use Backlinks in OpenSEO with your own YepAPI key.
What you get
What the backlink checker shows
Link totals
Backlinks, referring domains, dofollow and nofollow counts, and broken links pointing at the site.
Strongest links
The 15 highest-ranked sites that link to it, one link per site, with the anchor text.
Spam score
A rough measure of how many links come from low-quality sites.
FAQ
Questions
How complete is the list?
No backlink index is complete. This one is large and updated continuously, but expect some links to be missing, especially new ones.
Can I see every link?
OpenSEO shows every backlink and referring domain, with history, anchors, top pages and link intersect against competitors.
Why is there a daily limit?
The data comes from YepAPI and this site pays for it, so each visitor gets a few lookups a day and the whole site has a daily budget. Repeating a lookup someone already made in the last 24 hours is free and does not count.
In OpenSEO itself there are no such limits: you use your own YepAPI key and see the price of every lookup before it runs.