This plugin makes it easy to add the appropriate meta robots tags to your pages, disable unused archives, nofollow unnecessary links as well as do som
Lots of deprecated call (9) but logical...no support anymore.
Does it harm your site ...could be.
See link with img which shows the deprecated calls.
Would be nice to see Joost would update it.
Really protect your WordPress site and make sure what the search engines see is what you WANT them to see!