Web browser
Reading your browser details.
What Am I Using?
Your browser, device and connection details, all in one place. Find what you need, or copy a report for technical support.
Browser & device check
Operating system
Reading your device details.
Public IP address
Checking…
The address this website sees.
Want to mask the IP websites see? Explore NordVPN (opens in a new tab)Affiliate ad. We may earn a commission.
Getting help with a technical problem?
Give your support team useful details in one go. Review them before you share.
- Location (estimated)
- Checking…
- Weather: checking…
- Forecast near this estimated location. Data from MET Norway, CC BY 4.0, summarised.
Location is approximate. A VPN may show its server and network provider.
Internet speed
—Mbps download
Partial estimate
- Upload
- — Mbps
- Latency
- — ms
- Jitter
- — ms
Ready when you are. No automatic test.
Uses up to 80 MB of test data.
Network overhead is additional. Starting shares your IP and test measurements with Cloudflare. Privacy details.
Compare your broadband options Compare UK deals with Broadband Genie (opens in a new tab) (affiliate link)
Need faster Wi-Fi? Explore NETGEAR Orbi 970 (opens in a new tab) (affiliate link)Mesh WiFi can improve coverage; your broadband plan still sets the limit.
Powered by Cloudflare’s open-source engine · About your results
These are details reported by your browser. Some versions are hidden or simplified for privacy. Why might a result be different?
Supporting someone else? We actively encourage helpdesks, IT teams and anyone helping a friend to share www.whatamiusing.com. Ask them to open it in the browser causing the problem, then review and paste their support details into your ticket or email.
A little more detail
No app or account neededScreen & browser window
- Screen size (CSS pixels)
- Checking…
- Browser window (CSS pixels)
- Checking…
- Device pixel ratio
- Checking…
- Colour depth
- Checking…
Device & settings
- Device type (estimated)
- Checking…
- Time zone
- Checking…
- Browser language
- Checking…
- JavaScript
- Enabled
- Browser cookie setting
Advanced: user agent & detection method
The user agent is a description your browser sends to websites. It may simplify your device details or imitate another browser.
Open the user-agent checker and explanation.
Checking…- Browser detection
- Checking…
- System detection
- Checking…
A useful place to start
A few practical guides to make sense of the details above.
What to send to technical support
The details that help someone diagnose a problem, without sharing more than you need.
Read the guideFind and update your browser
Check your version and use the browser maker’s own update instructions.
Read the guideA website won’t load. Now what?
A short sequence of checks to narrow down a connection or browser problem.
Read the guideCommon questions
What does What Am I Using? show?
It shows the browser and operating system your device reports, the public IPv4 and IPv6 addresses we can verify, an estimated-area map, an optional internet speed test, and screen and browser settings that can help with technical support.
Is this tool free?
Yes. You can use the checker and create a support report without an account or payment. Advertising and clearly labelled affiliate links may help fund the site.
Why does it say Windows 10 or 11?
Those systems can use the same traditional user-agent string. When supported, Client Hints help distinguish them. Otherwise we show the uncertainty instead of guessing. Check your Windows version on your computer.
Are there other free tools here?
Yes. Test your webcam and microphone, create QR codes, look up domains, convert text and dates, and more. Open More tools above, or browse the footer. The full FAQ covers the whole collection.
Ethernet or Wi-Fi: getting the best from your connection
For a fast, consistent connection, try Ethernet where practical. Your cables, ports and broadband plan still set the limits. These practical guides from Switched On Network show how to make and connect network cables.
Videos stay unloaded until you choose Load video. Loading connects to YouTube/Google, which may process your IP and device information. Video privacy details.
Wire Ethernet plugs the easy way
Pass-through RJ45 connectors for Cat5e and Cat6.
Watch on YouTube (opens in a new tab)Crimp Cat5 and Cat6 patch cables
A practical guide to fitting RJ45 plugs.
Watch on YouTube (opens in a new tab)Wire Ethernet wall jacks
Connect network cable to keystone wall sockets.
Watch on YouTube (opens in a new tab)Prefer wireless? A NETGEAR Orbi 970 Mesh WiFi system (opens in a new tab) (affiliate link) is an option for improving coverage where running cables is impractical. Your broadband plan still sets the limit.
What does this internet speed test measure?
Open the full internet speed test, or press Start speed test above for a short check of download and upload rates, latency and jitter. The test runs directly against Cloudflare. Choose Quick (up to 80 MB) or Longer (up to 200 MB) for more samples on fast connections. It never starts automatically.
Download and upload
Mbps means megabits per second. Download affects receiving files and video; upload affects sending files and your outgoing video on calls. The longer mode takes more samples. Both modes measure transfers to Cloudflare and can differ from tests designed to measure peak broadband speed.
Latency and jitter
Latency is the time a request takes to respond. Jitter is variation between response times. Lower, steadier values can help calls and games feel more responsive.
Compare like with like
Try a quiet connection, then compare Wi-Fi with a wired connection where possible. Other downloads, mobile signal, a VPN and your device can change the result. One test cannot identify every cause of a slow connection.
The test service may temporarily limit requests. Interrupted runs show partial estimates; these can still be included in your support report with a clear label.
Why is my result different from Speedtest.net?
Different tests use different servers and methods. This test measures transfers to Cloudflare; Speedtest.net can use multiple connections to measure available capacity. Neither result guarantees the speed of every website or download. The longer option takes more samples, but results can still differ.
Check speed, connection stability and browser details here, then copy a support report. No app download or account needed.
Read about Cloudflare’s method and how Speedtest calculates results.