How to use this page
- Open the page. Your IP address, its version and country appear at the top within a second.
- Check the browser panel: it decodes the user-agent string your browser sends with every request.
- To decode someone else’s browser, paste their user-agent string into the box. The panel updates as you type.
- Use “Copy details” to paste everything into a support request.
What your IP address shows, and what it does not
Your public IP address is the one your internet provider assigns to your connection, often shared by every device in your home through the router. Websites need it to send pages back to you. Public registries link each address block to a provider and a country, so the address reveals roughly where you are, usually the region or city of the provider’s equipment, not your street. Mobile networks and large providers often share one address between many customers, a technique called carrier-grade NAT.
The address is read by our checking service from your request, along with the country Cloudflare assigns to it, and sent straight back to this page. If you use a VPN or a privacy relay, you will see the VPN’s address and country instead, which is a quick way to confirm it is working.
Reading a user-agent string
Every browser sends a line of text such as Mozilla/5.0 (Windows NT 10.0; Win64; x64) … Chrome/130.0.0.0 Safari/537.36. Much of it is historical: nearly every browser still starts with “Mozilla/5.0” and mentions Safari or Gecko for compatibility with old sites. The tool reads it from the most specific product token to the least, so Edge, Opera and Samsung Internet are not mistaken for Chrome, and it recognises crawlers such as Googlebot and Bingbot.
Worked example
Paste Mozilla/5.0 (Linux; Android 14; SM-S918B) AppleWebKit/537.36 (KHTML, like Gecko) SamsungBrowser/26.0 Chrome/122.0.0.0 Mobile Safari/537.36. The tool reports Samsung Internet 26 on Android 14, engine Blink, device Mobile (SM-S918B). The “Chrome/122” part is only the engine version Samsung Internet is built on, and SM-S918B is the model number of a Galaxy S23 Ultra.
Why Windows 11 shows as “Windows 10 or 11”
To reduce tracking, Chrome, Edge and other browsers have frozen parts of the string. Windows 11 still reports “Windows NT 10.0”, macOS is stuck at 10.15.7, and Android phones in Chrome send “K” instead of the model. When your browser supports Client Hints, the tool asks it for the real platform version and shows a note, so you can still tell Windows 11 apart.
Practical uses
- Give your IP address to a host or IT team that needs to allow it through a firewall.
- Confirm that a VPN, proxy or travel SIM changes your visible country.
- Decode user agents from server logs to see which crawlers visit your site.
- Attach exact browser and system details to bug reports.