Latency
Round-trip time to our measurement server.
TRANSPARENT BY DESIGN
How we
measure.
Every internet speed test runs directly in your browser. We measure latency, received data and sent data in sequence, then combine them into an easy-to-read report.
Download
Data received over a measured time window.
Upload
Data sent from your device.
RELATED TESTS
Choose a focused test
Ping test
Measure latency and jitter for gaming and real-time apps.
Wi-Fi speed test
Check the wireless connection from the room where you use it.
Upload speed test
Measure how quickly your connection sends data.
GUIDES
Guide to an accurate speed test
Use a stable connection
For a reliable Wi-Fi speed test, prefer Ethernet or stay close to your router. Pause background downloads, VPNs and video streaming.
Test more than once
Repeat your test internet speed check at different times to spot a trend instead of relying on a single result.
Compare for your purpose
A low ping test result matters for calls and gaming; download and upload matter for data, video and backups.
KEY TERMS
Key terms
Ping
The time a signal takes to reach the server and return. Lower is more responsive.
Jitter
How much ping varies. Low jitter helps calls and gaming stay stable.
Download
The rate data reaches your device, often affecting page loads and video playback.
Upload
The rate data leaves your device, important for video calls and cloud backups.
PRACTICAL GUIDE
Internet speed for everyday use
What is a good ping?
Under 50 ms is usually smooth for video calls and gaming. Under 20 ms is excellent, while a stable ping and low jitter matter just as much.
Internet speed for gaming
Online gaming does not need much bandwidth, but it benefits from low ping. Around 3–5 Mbps download and 1 Mbps upload is often enough for one device when background traffic is paused.
Internet speed for 4K streaming
For steady 4K video, aim for around 25 Mbps of download speed per stream. You will need more bandwidth when several devices stream or download at once.
How to improve slow Wi-Fi
Place your router in an open, central spot, use 5 GHz when appropriate, update its firmware, pause VPNs or background downloads, then test again near the router or over Ethernet.
RESEARCH
Research & privacy
Internet Test by DHT only makes the measurement requests needed to create a result. Reports do not store IP addresses or identifying personal information. Your test history stays locally on your device.
HELP
Frequently asked questions
How does an internet speed test work?
The test sends and receives data for a short period while measuring response time to a server. The result shows your download speed, upload speed, ping and jitter at that moment.
Why does my result differ from my plan?
Your plan is a maximum under ideal conditions. Wi‑Fi, devices, destination servers and background activity can change a result.
How should I read the quality score?
The score combines download, upload, ping and jitter for a quick reference. Check each metric when you have a specific need.
Do I need an account?
No. You can test and view a report right away without signing up.