Internet speed, explained simply
Short guides that turn speed-test numbers into decisions. No jargon unless we explain it first.
What is a good internet speed? A plain-English guide
Forget the marketing. Here is how many Mbps you actually need for streaming, video calls, gaming and a busy household — and why speed is only half the story.
Ping, latency and jitter — explained with a pizza delivery
Three words that sound technical but describe something you already understand. Here is what each one means, what good looks like, and which one is ruining your video calls.
Why your fast internet feels slow: bufferbloat and latency under load
Your speed test says 200 Mbps, yet video calls glitch the moment someone starts a download. The culprit has a silly name and a simple test.
Why is my speed test lower than the speed I pay for?
Paying for 300 Mbps and seeing 90? Before you call your provider, here are the seven usual reasons — in the order you should check them.
What is packet loss, and why does it freeze my calls?
Everything you send online is chopped into packets. When some never arrive, apps have to cope — and you see the results as stutters, freezes and 'reconnecting…'. Here is what causes it and how to fix it.
How Speedtesty measures your speed (and why we trust Cloudflare's method)
A look under the bonnet: the open-source engine, the ramp-up method, the statistics, and why the server you test against matters as much as the test itself.
How to get an accurate speed test result
Six small things that make the difference between a number you can trust and one that sends you on a wild goose chase.
Download vs upload: why are they so different, and which one do you need?
Most connections are lopsided on purpose. Here is why, when it matters, and how much upload you really need for working and calling from home.