Timezone & language

See the timezone, language list, and locale your browser reports to websites. Useful for spotting VPN and timezone mismatches.

Free tool

Timezone & Language Check

Websites can read your timezone and preferred languages directly from the browser. If you use a VPN, this is a classic giveaway: an IP in Amsterdam with a browser reporting Asia/Karachi tells sites the location does not add up.

Timezone & language

Collecting…

Why does my browser timezone matter for privacy?

Sites compare your IP's location with your browser's timezone. A mismatch flags VPN or proxy use. Serious privacy setups change both, which is why Tor Browser reports UTC to everyone.

Where do these values come from?

From your operating system settings, read through the browser's Intl API and navigator.languages. This page reads them locally and uploads nothing.

This tool also lives in the homepage tool drawer alongside 17 others. Browse everything on the tools page or look up any address with the IP lookup.