Which is the free tool to find the lost links for website?

there are many website to analyze but ahref is the best tool

Use Semrush - you can see new and lost backlinks are are shown in different colors. The dates these links were lost and found are marked the same way.

ahref is tool best. you can check new backlink

Ahref is the best tools and semrush also is the best

Backlinks, along with content, make up the most important factors that influence how well your webpages perform in search engine results pages (SERPs).

If that tells you anything, it should be that backlinks are super-important and should be treated so.

Treating your site’s backlinks with the utmost importance they deserve starts with having an idea of what your backlink profile looks like. Put differently, you would have to analyze your backlinks to know where you are and the next level to

semrush is the best tools

Ahrefs is the best tool.