Tutorials
Deep-dive guides for every test on WhoAmI Online. Read the full story behind each measurement, then come back to run the scan.
Speed
Speed
Internet speed test: how to actually get the speed you pay for
Read the guide SpeedBufferbloat: why fast internet still lags -- and how to fix it
Read the guide SpeedLatency and ping: why fast internet still isn't enough
Read the guide SpeedFast internet but Zoom or Teams keeps freezing? Fix the jitter
Read the guide SpeedPacket loss: how to find it and make your ISP actually fix it
Read the guide SpeedWhat to tell your ISP about slow internet: the call script that gets a technician
Read the guide SpeedLag is not a speed problem: the gamer's guide to a connection that holds up in a match
Read the guide SpeedYour internet is fast. Your Zoom calls still freeze. Here is the number nobody checked.
Read the guide SpeedNetflix keeps buffering on a fast plan. The line is almost never the problem.
Read the guidePrivacy
Privacy
DNS leaks: what your "phone book" lookups reveal about you
Read the guide PrivacyWebRTC leaks: the browser feature that can reveal your real IP
Read the guide PrivacyHow websites spot a VPN, and what you can honestly do about it
Read the guide PrivacyIPv6 for humans: what it is and why you probably want it on
Read the guide PrivacyTimezone mismatch: the clock that quietly gives away your VPN
Read the guideMultimedia
Fingerprint
Fingerprint