The all-in-one redirect path analyzer. It also analyzes protocol headers, REL-canonicals, robots.txt, backlink power, and trust!
verygood
My go-to plugin for analysing redirects, HTTP headers, canonicalisation, and indexability. Plus the way the extension allows you to subtly highlight nofollow links is excellent.
Very useful tool, but please add the ability to check links in bulk. That will help me much more.
http://www.ayima.com/
https://nightwatch.io
https://www.checkrobots.com/
OpenLink Software
Adapt Worldwide
http://www.linkresearchtools.com/
http://www.linkresearchtools.com/
https://thijsvanhal.nl
http://www.seo-extension.com/
nodeandlink
Tim Mullen
http://www.linkresearchtools.com/