godoc(.org) query packages without cgo

[fge...@gmail.com]

While browsing godoc.org for some functionality, I was wondering if
packages using cgo could be excluded from search results, like this:
"Hmm, I was wondering if godoc.org could show me packages with
"examplesearchterm" without cgo."

Did somebody look into implementing something like this earlier?

(Sometimes I would also like to exclude packages using package unsafe as well.)

I can imagine a more general search functionality, quering platform or
OS or minimal go version number or other "package context
dependencies" (what else?) would be useful as well.

If not godoc.org, does any other site implement similar search functionality?

Thanks!