- Monitoring over time, rather than a single test, is what turns a vague complaint into solid evidence.
- Useful metrics include download and upload speed, latency, packet loss and how often the connection drops.
- Free tools and apps, including consumer speed-monitoring options, can log performance automatically.
- A time-stamped log comparing your speeds to your minimum guaranteed speed is the core evidence for a complaint.
A single speed test proves little, because broadband varies through the day. To hold a provider to account, you need a record over time. Monitoring tools make that record for you, and the resulting log is the difference between a complaint a provider can wave away and one it must take seriously.
Why monitoring beats a one-off test
Broadband performance fluctuates with contention, time of day and intermittent faults. A test at one moment captures none of that variation. Monitoring over days or weeks reveals the pattern, when the connection slows, how often it drops, whether it falls below your guaranteed speed, which is exactly what a provider or the ombudsman needs to see.
What to measure
Speed is the obvious metric, both download and upload, but it is not the only one. Latency, the delay on the connection, matters for video calls and gaming. Packet loss indicates an unstable connection. Uptime, or how often the connection drops, is crucial evidence for intermittent faults that a speed test alone would miss. A rounded log captures all of these.
The tools available
A range of free tools and apps can test and log broadband performance, including consumer monitoring options associated with Ofcom's work on broadband speeds, and third-party apps that run regular tests automatically. Automatic logging is valuable because it captures problems even when you are not watching, building the time-stamped record you need without manual effort.
Monitoring tools and what they measure
| Metric | Why it matters |
|---|---|
| Download / upload speed | Compare against your guaranteed speed |
| Latency | Affects calls and gaming |
| Packet loss | Indicates instability |
| Uptime / drop-outs | Evidence for intermittent faults |
Building a usable log
For evidence, run tests at consistent times including the evening peak, ideally over a wired connection to remove Wi-Fi as a variable, and record the date, time and result alongside any drop-outs. Keep it for the duration of any dispute. A clear, time-stamped log comparing your real speeds to your minimum guaranteed speed is the single most persuasive thing you can bring to a complaint or an ombudsman referral.
Frequently asked questions
How do I monitor my broadband speed over time?
Use a free speed-monitoring tool or app that runs tests regularly and logs the results, ideally over a wired connection. Run tests at consistent times including the evening peak, and record the date, time and result to build a picture of performance over days or weeks.
What is the Ofcom monitoring tool?
Ofcom has supported consumer broadband monitoring as part of its work on broadband speeds, alongside its speed-checking resources. Various free consumer tools and apps also let you test and log performance. Check Ofcom's broadband speeds pages for current resources.
Can monitoring tools help me make a complaint?
Yes. A time-stamped log of speeds, drop-outs and other metrics over time is far more persuasive than a single test. It shows the pattern of a problem and lets you demonstrate where performance falls below your minimum guaranteed speed, which is the core of a complaint.
How do I log broadband evidence for a complaint?
Run tests at consistent times, including the evening peak, over a wired connection, and record the date, time, download and upload speed, and any drop-outs. Keep the log for the duration of the dispute, and compare the results against your minimum guaranteed speed.
What should I record when monitoring broadband?
Record download and upload speed, latency, any packet loss, and how often the connection drops, each with a date and time. Together these capture both speed shortfalls and intermittent faults that a single speed test would miss.
