Free checker · 9 countries’ rules
Enter your plan and a few speed tests from different times of day. See how they compare with the speed you were promised, what the rules where you live say, and what to do next.
The checker
Add each test with when it ran and whether the computer was on a cable or Wi-Fi. Nothing you type leaves this page.
Compare like with like
“Speed” can mean a plan, a radio link or an average. Check the label beside the number before you call a result slow.
| Figure | What it means | What to check |
|---|---|---|
| Advertised maximum | A headline or upper limit | Your address-specific estimate and contract |
| Typical or average speed | A summary over customers, a period or a test method | The stated busy period and measurement conditions |
| Minimum guaranteed speed | A commitment with conditions | Where it is measured and the remedy in your contract |
| Wi-Fi link speed | The local radio connection | It is not an internet download result |
| MB/s | Megabytes a second, not megabits | Multiply by eight: 10 MB/s is about 80 Mbps |
Before you complain
Slow only in the evening? Read why the internet slows down at night. Down rather than slow? Work out your outage credit.
Rules by country
From each country’s complaint guide and its official sources. Choose your country in the checker and its route appears beside your results.
Keep the plan name, the advertised and typical speed wording and the broadband label, with when and where you got them.
If it isn’t resolved, the FCC’s internet complaint form has speed issues, including advertised speed and latency.
Slow internet in the US →Your minimum guaranteed speed matters more than the headline average.
An unresolved formal complaint can go to the provider’s approved ADR scheme after eight weeks, or sooner with a deadlock letter.
UK broadband below minimum speed →For a formal claim on home broadband, use Festnetz-Check, the Bundesnetzagentur’s desktop app: 30 measurements on three measuring days within 14 days, over a LAN cable.
Send the protocol to your provider with your contract and the remedy you want, and ask for a written reply.
Slow internet in Germany →Keep download, upload, latency and disconnections apart, and record whether each test used Wi-Fi or Ethernet.
If it isn’t resolved, the CCTS’s consumer complaint service is free.
Slow internet in Canada →Compare evening results with your plan’s typical evening speed, not its tier.
The Telecommunications Industry Ombudsman handles eligible disputes the provider hasn’t resolved. The ACCC doesn’t resolve individual speed disputes.
Slow NBN speeds →For intermittent faults, include working and failing periods: a single speed test can miss a short interruption.
Telecommunications Dispute Resolution is free and independent; ordinary broadband disputes generally need your provider to be a member.
Broadband problems in New Zealand →Write down the plan, the dates and whether it’s low speed, interruptions or one service.
If unresolved, appeal to the provider’s appellate authority, listed by TRAI, within its time limits.
Broadband complaint in India →Compare Ethernet with Wi-Fi on the same device and keep the conditions with each result.
If that fails, Anatel Consumidor, under Anatel’s conditions.
Slow internet in Brazil →Record the test server: a fast local test and a slow distant website measure different routes.
After an unsatisfactory reply, or none in time, MIIT’s appeal service covers disputes with telecom providers.
Slow broadband in China →Somewhere else? Start with testing before you complain and the complaint letter template, or find your provider’s page.
Kilobat · Recorded measurements
Kilobat runs speed tests on your Mac and keeps each one with the server it reached, the connections it used, the network, Wi-Fi band, signal and VPN. Compare any two and it says what differed. Free
An advertised figure may be a maximum, a typical evening speed or a guaranteed minimum, and each means something different. Wi-Fi, other devices, a VPN and busy evening hours all lower a test. Compare like with like: a wired test against the figure your contract actually promises.
The one your contract commits to. In the UK that is the minimum guaranteed speed from providers in Ofcom’s voluntary code. In Australia it is your plan’s typical evening speed, 7 pm to 11 pm. In Germany the contract names a minimum, a normally available and a maximum speed. In the US, don’t treat a typical speed as a guarantee unless the agreement says so.
Not on its own. Wi-Fi adds its own slowdowns, and a Wi-Fi test alone may not measure your provider’s commitment. Test once with a cable to the router and keep wired and Wi-Fi results apart. If wired is fast and Wi-Fi slow, look at coverage, interference or the device.
Plans are sold in megabits per second (Mbps). Many download windows show megabytes per second (MB/s). One byte is eight bits, so 10 MB/s is about 80 Mbps. The checker converts for you.
Not automatically. A low result is a reason to ask your provider to investigate. Remedies depend on your contract and where you live: Ofcom describes leaving without penalty in some cases, and Germany a price reduction proved with the official Breitbandmessung protocol.
Kilobat runs speed tests on your Mac and records the server, connections, network, Wi-Fi band, signal and VPN for each, and its provider report sets them against your plan. Both are free. Kilobat Pro’s complaint pack puts your request, every test, outages and plan against measured speed into one PDF you send, $29 once.
Checked on 6 November 2026.
brew install seifip/kilobat/kilobat