All tests
Pick the test you need. Speed and latency tests come first, then IP, privacy, DNS and calculators. Each page says what it measures and what it cannot show.
Speed and latency
- Internet Speed TestInternet speed test: get download, upload, latency and jitter to the nearest test server in one run. Press Start test and wait for the result.
- Download Speed TestDownload speed test: measure only how fast data arrives, in Mbit/s, plus idle latency. It uses less data than the full speed test.
- Upload Speed TestUpload speed test: measure how fast you send data, in Mbit/s, and how latency changes while sending. Useful for calls, streams and backups.
- Ping TestPing test: measure latency and jitter in ms to the nearest test server. The test sends web requests, so it is not an ICMP ping.
- Bufferbloat TestBufferbloat test: see how much latency grows while you download and upload. A large increase means delays when the line is busy.
- Internet Stability TestInternet stability test: run up to five tests in a row and see how much speed and latency change between runs. Keep this tab open.
- Live Ping MonitorLive ping monitor: watch latency and jitter to the nearest test server every second, with drops and spikes marked on a graph.
- Wi‑Fi vs Ethernet TestWi-Fi vs Ethernet speed test: test on Wi-Fi, test again on a cable, and compare both results side by side in one table.
IP and network
- What Is My IPWhat is my IP address: see your public IP address, its version and the network that announces it, as websites see it.
- IPv6 TestIPv6 test: check if your connection works over IPv4, IPv6 or both, and which of the two your browser uses first. Result in seconds.
- Is My Internet Working?Is my internet working: a short check of three things: your device is online, names resolve, and a remote server answers.
- Subnet CalculatorSubnet calculator: enter an IP address with a CIDR prefix or mask to get network and broadcast address, host range and wildcard mask.
- Wi‑Fi QR Code GeneratorWi-Fi QR code generator: make a QR code that joins your network without typing the password, and create a strong password if you need one.
Privacy
- WebRTC Leak TestWebRTC leak test: see which IP addresses your browser shows through WebRTC, for example when you use a VPN. A public STUN service is used.
- VPN TestVPN test: check if your VPN works by comparing your IP country, browser time zone and language, and the addresses WebRTC shows.
- What Are My HTTP HeadersWhat are my HTTP headers: see what your browser sends to every website, such as user agent, languages, client hints and Do Not Track.
DNS
Planning
- How Much Internet Speed Do I Need?How much internet speed do I need: see the speed and latency that video calls, HD and 4K video and games usually need, with sources.
- Download Time CalculatorDownload time calculator: enter file size and speed in Mbit/s or MB/s and get the time to download. MB and MiB are kept apart.
- Mbps to MB/s ConverterMbps to MB/s converter: change between Mbit/s, MB/s, Gbit/s and other data rate units. Decimal MB and binary MiB are shown apart.
- PPI CalculatorPPI calculator: work out pixels per inch, dot pitch and screen size from the resolution and the diagonal of a screen.
- Bandwidth CalculatorBandwidth calculator: add up streams, calls, games and devices to see how much download and upload speed your household needs.
- Data Usage CalculatorData usage calculator: estimate how many GB you use per month for streaming, calls, games, browsing and downloads. For plans with a data limit.
- Streaming Bitrate CalculatorStreaming bitrate calculator: find the video bitrate and upload speed you need to stream at 720p, 1080p, 1440p or 4K, at 30 or 60 fps.
- Video File Size CalculatorVideo file size calculator: find how much space a recording needs at a given bitrate and length, or which bitrate fits a given size.