Free Website Bad Backlinks checkers ?

[Drill SEO]

any one know bad links and broken links checkers free

 

[Renfield-Files]

PowerSuite will do the trick. It's a must have!

 

[Ettienne]

Google Webmaster tools

 

[Drill SEO]

Google Webmaster tools

yes, but how to know the spam score of that backlink site

 

[Intuz]

Moz's opensite explorer or small seo tools

 

[StrixSeo]

Try with majestic.

 

[stevesolo]

Just give a try on Open Site Explorer.

 

[fizz707]

A very convenient way is to do that using SEO Spyglass from SEO Powersuite. You can quickly identify spammy and harmful links evaluating Penalty Risk metric and even get rid of toxic links using the built-in disavow file generator.
Available in free edition!