[gPphX]

I have modified wikipedia pages, then googled it, to see search result "instantly" updated.

Also, sneaky web sites often give different results to the googlebot user agent than to a non-google firefox user agent

https://en.wikipedia.org/wiki/User_agent

https://addons.mozilla.org/en-GB/firefox/search/?q=user+agen...

[anewhnaccount]

Google deliberately crawls in a non-Google looking way to try and detect "masking".

[tracker1]

Yeah, that expert sex change site used to bug the hell out of me for that reason... scroll forever and a day after loading.