Instead of the number of requests
Should we just use the GOPROXY at proxy.golang.org, or should we run our own?
REPORTED RESOLVED FIXED
It seems like pkgsite accomplishes this by querying $GOPROXY for information about modules. It also discovers major versions by checking for /v2, /v3, etc until the queried version does not exist.
$GOPROXY is essentially a wrapper around the go command with an immutable cache.
REPORTED RESOLVED IMPLEMENTED