If this is based on actual info taken from :visited selectors, apparently they are useless
It's not, it's based on trying to load some URL from the website and measuring the time it takes. If you went there, it should be on the cache and take much less time to load.
It's not, it's based on trying to load some URL from the website and measuring the time it takes. If you went there, it should be on the cache and take much less time to load.
It doesn't seem to work that well, though.