Internet Speed Checker

Check your internet speed with LinkSpeed and understand download speed, upload speed, ping and jitter in one simple broadband test.

Free UK broadband checker

Check download, upload, ping and jitter

An internet speed checker should do more than show one headline number. Download speed matters for streaming and browsing, upload speed matters for video calls and file sharing, and ping and jitter explain how responsive the connection feels.

Run a free LinkSpeed test, then use the guides below to understand whether your broadband, router, Wi-Fi or household usage is causing problems.

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What does an internet speed checker measure?

An internet speed checker measures how your connection performs from the device you are using. The result is affected by your broadband package, router, Wi-Fi signal, device, browser, VPN, time of day and background network activity.

Most people focus on download speed, but a useful test should also include upload speed, ping and jitter. These extra measurements explain why a connection can look fast but still feel laggy, unstable or slow during video calls and gaming.

Internet speed checker results explained

ResultWhat it meansWhy it matters
Download speedHow quickly data reaches your deviceStreaming, browsing, downloads, game updates and web pages.
Upload speedHow quickly data leaves your deviceVideo calls, cloud backups, livestreaming and sending files.
PingHow long data takes to travel to a server and backGaming, remote desktop, cloud apps and call responsiveness.
JitterHow much ping changes during the testLag spikes, audio dropouts and inconsistent video calls.

What is a good internet speed?

The right speed depends on the number of people, devices and simultaneous activities in the home. A single person browsing and watching HD video needs far less than a large household streaming, gaming and working from home at the same time.

Light use

25 Mbps can be enough for browsing, email and occasional HD streaming.

Streaming homes

100 Mbps or more is more comfortable when several people stream at once.

Gaming

Low ping and stable jitter matter more than extreme download speed.

Heavy users

300 Mbps to 1 Gbps can help with large downloads, many devices and full fibre homes.

Estimate the speed you need Average speeds guide

Why internet speed checker results vary

Wi‑Fi quality

Distance, walls and interference can make Wi-Fi much slower than Ethernet.

Router limits

Older routers may not deliver modern full fibre speeds around the home.

Background usage

Updates, cloud backups and streaming can consume capacity during a test.

Time of day

Peak-time congestion can reduce speed and increase latency.

VPN or proxy

VPNs can route traffic further away and reduce the result.

Test server

Different servers and browsers can produce different measurements.

How to get a better speed test result

  1. Test close to the router first. This reduces the impact of weak Wi‑Fi.
  2. Use Ethernet if possible. This gives the cleanest view of the broadband line.
  3. Pause downloads and uploads. Background traffic can distort results.
  4. Turn off VPNs temporarily. VPNs can reduce speed and increase ping.
  5. Run multiple tests. Compare morning, evening and peak-time performance.
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More specific speed checker guides

Download speed checker

Focus on the headline Mbps result and what affects it.

Read guide

Router speed checker

Find out whether your router or Wi‑Fi is the bottleneck.

Read guide

Broadband ping test

Understand latency, jitter and responsiveness.

Read guide

Speed and ping test

Check capacity and responsiveness together.

Read guide

Internet speed guide

Understand all core broadband speed test metrics.

Read guide

Home network guides

Improve Wi‑Fi, router placement, mesh and weak rooms.

View guides

Internet speed checker FAQs

What does an internet speed checker measure?

It measures download speed, upload speed, ping and jitter. These show how fast, responsive and stable your connection is.

What is a good internet speed?

Light users may be fine with 25 Mbps, while busy households often benefit from 100 Mbps or more. Heavy users and full fibre homes may prefer 300 Mbps to 1 Gbps.

Why is my Wi‑Fi speed lower than my broadband speed?

Wi‑Fi can be reduced by walls, distance, interference, old devices, poor router placement and congestion from other devices.

Should I test with Ethernet?

Yes, if possible. Ethernet helps reveal whether the broadband line is fast and whether Wi‑Fi is causing the slowdown.

Why does ping matter?

Ping affects responsiveness. It matters for gaming, video calls, remote desktop and other real-time services.