Broadband latency test for UK homes
Published by Pulse (SearchSwitchSave.com). Reviewed April 2026 by the UKSpeedTest editorial team led by Dr Alex J Martin-Smith.
Latency is delay, measured in milliseconds. Lower latency usually feels more responsive for games, calls, and interactive apps, even when download speed is high.
What Pulse measures
Pulse reports latency and jitter during the same session as your download test, so you can read responsiveness and stability together.
When latency is the real issue
- Calls sound delayed.
- Games feel sluggish despite good Mbps.
- Remote desktop feels sticky.
Practical next checks
- Repeat on Ethernet to separate Wi-Fi from line performance.
- Repeat at the time issues usually happen.
- Compare with jitter to understand stability.
Pulse measures download speed, latency, and jitter. Upload speed is not measured in the current release.
Related guides
Useful tools from the FBRE network
If you want a second opinion or next-step tools, try HowFast for an additional speed-check perspective, Laggy for latency-focused checks, Broadband Map for postcode availability context, and BroadbandSwitch.uk when you are comparing deals before switching.
You can browse the wider site list at FBRE.uk.
FAQ
Is latency the same as speed?
No. Download speed is how much data can arrive per second, while latency is how long a small request takes to go to a server and back. You can have high Mbps and still feel laggy calls or sluggish games if latency is high or unstable.
Can Wi-Fi raise latency?
Yes. Busy Wi-Fi, distance from the router, and interference can add delay and variation compared with Ethernet. If latency improves on a wired test in the same room at the same time, your home wireless path is a likely factor.
Should I test latency once?
One run helps, but repeat tests matter because latency moves with network load and what else is using your line. Test when problems usually happen, keep the browser tab in focus, and compare Wi-Fi against Ethernet if you can.
Does Pulse store my latency result?
Pulse shows results in your browser for this session and does not rely on account storage for the tool flow. Save a screenshot if you need evidence for your provider, and note your setup and the time of day.