Google's page loading times seem kind of flaky. One of our sites' loading times has jumped between 1.5 and 10 seconds and back four times since they started gr

Google's page loading times seem kind of flaky. One of our sites' loading times has jumped between 1.5 and 10 seconds and back four times since they started graphing it. But I have a cron job that tracks the loading times of random pages on our sites (from offsite, every 10 minutes). I get very consistent loading times (nowhere near that variance). (Edit: they also suggest GZIP resources that are in fact already gzipped, at least they are according to the HTTP headers)