WiFi Signal Strength Test
Click start and the adaptive engine measures ping, download and upload in under a minute — with no account and no app.
How this speed test works
This test starts with a short latency probe, then downloads test data from Cloudflare's edge in increasing amounts until it can estimate your connection confidently. Slow links stop early; gigabit links scale up to get a stable reading.
The measurement engine begins with tiny requests and grows the transfer size stepwise, so the total data moved is close to the minimum needed for a confident number.
Adaptive testing also means the test is gentle on mobile data plans: it stops transferring as soon as the estimate is statistically stable.
Understanding download vs upload
Download speed is usually the biggest number on a result screen because most plans are asymmetric, and it is the figure most ISPs advertise most loudly.
Some jitter is normal on any connection; very high jitter (roughly 20 ms or more of variation) is what you'll notice as choppy calls or rubber-banding in games.
Factors that influence results
Whether you test over Wi-Fi or Ethernet, the distance to your router, how many devices share the connection, and whether your ISP throttles specific traffic can all move the numbers.
Testing against Cloudflare's anycast network gives a realistic picture of real-world throughput because the measured path is short and well-connected.
Getting the most from the test
This test is free, requires no account, and never shows ads while it runs — the only goal of the measurement is to give you a trustworthy number as quickly as possible.
The result screen labels the server you measured against, so you always know exactly what path a number represents before you compare it with anything else.
Run the test a few times over a few days before drawing conclusions. One-off speeds are noisy; a median of several runs is a much more reliable picture of your connection.
Making the result useful
WiFi Signal Strength Test is built to run on your connection in under a minute — press start, read the four numbers, and compare them with what your plan promises.
Speed test limitations
A speed test measures your connection to our test server, which typically lives on the same backbone your ISP peers with. Speeds to other destinations can vary with routing, server load, and the websites you use.
Latency shown here is the round-trip time to the test server, not the latency you would get to every gaming server or streaming CDN. Use it as a general baseline, not a guarantee.
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