With the amount of personalisation done, it's hard to compare Google searches. The results I get are not likely to be the same as the ones you get. But searching for "kavorka perl" I get the following:
- http://blogs.perl.org/users/toby_inkster/2013/11/introducing-kavorka.html
- http://search.cpan.org/perldoc?Kavorka
- https://metacpan.org/release/Kavorka
- https://github.com/tobyink/p5-kavorka
- https://github.com/lukec/stripe-perl/issues/28 (hmmm... looks interesting... I think I'll reply to this issue)
So metacpan is certainly in there, even if it's not (yet) rating as highly as search.cpan.org. If the latter is constantly down when Googlebot visits though, expect this to change over time!