I have noticed that our site is showing sometimes as ‘Gzipped’ enabled when running Google’s speed tester, and other times it’s not showing any compression and so scores badly.
I’ve used other Gzip tests and one site first said we were not but then after a refresh it said it were! The page in question had been cached for 30 mins at the stage of testing so it’s not like a new version appeared.
I can only think this might have something to do with different POPs / shielding showing different versions of our site. Could this be the case, has anyone experienced anything similar?