Web, SEO & Network
Internet Speed Test
Measure your download speed and latency to the Biberks web server in about 15 seconds. You see the real data arrive, and what the test doesn’t measure.
- Runs in your browser
- Download + latency
- Uses up to ~150 MB
Ready when you are
Your speed
Your speed pops up here
Press Start test. You’ll see the download speed climb as real data arrives, then the final figure.
Download speed
—Mbps live
Starting…
Your browser gives a coarser measurement.
- Latency (HTTP round trip)
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- Jitter
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- Peak (90th percentile)
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- Same speed in MB/s
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- Data used
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- Test duration
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Upload speed and packet loss aren’t measured by this test.
How the speed test works
Your browser downloads test files from this website’s own server and times the bytes as they arrive. Nothing is estimated.
- 1. Latency (about 1 second)
- Nine tiny requests go to the server one after another. The first is ignored because it includes setting up the connection. Latency is the middle (median) value of the other eight; jitter is how much they vary from one to the next. This is an HTTP round trip, not an ICMP “ping”.
- 2. Warm-up (2 seconds)
- Four downloads start at once and keep going. The speed you see climbing is real, but the first two seconds are left out of the result because connections speed up as they start.
- 3. Measuring (up to 10 seconds)
- Every quarter of a second the test counts the bytes received in the last second. It stops after 10 seconds, after about 150 MB, or earlier once the speed has stayed within 5% for two seconds. A test never runs longer than 15 seconds.
- 4. The result
- Your download speed is the median of the measured seconds, in megabits per second (1 Mbps = 1,000,000 bits a second); the peak is the 90th percentile. If your connection is so fast that the data limit is reached before enough seconds are measured, the result is shown as “at least” the average over the whole test.
- Why results vary
- The figure covers everything between your browser and our server: Wi-Fi or a cable, your device and browser, other devices and apps using the connection, a VPN or proxy, your provider’s network at this moment, and the distance to the Biberks host.
What your download speed is roughly enough for
A rough guide for one household; needs vary by service and by how many people are online at once.
- Under 5 Mbps: browsing, email and music.
- 5–25 Mbps: HD streaming and video calls.
- 25–100 Mbps: 4K streaming and a few devices at once.
- 100–500 Mbps: big downloads and a busy home.
- 500 Mbps and more: very fast; most homes won’t notice the difference.
Questions
What’s the difference between Mbps and MB/s?
Mbps is megabits per second, the unit internet plans use. MB/s is megabytes per second, what browsers and download managers usually show. One byte is 8 bits, so 100 Mbps is about 12.5 MB/s. This test shows both and uses decimal units (1 megabit = 1,000,000 bits).
Why do other speed tests show different numbers?
Every test measures a different path at a different moment: a different server, distance and method. This one measures the connection between your browser and the Biberks web host, so it reflects your Wi-Fi or mobile link, your provider and the route to our server. A test run by your provider to its own nearby server often shows a higher figure.
Why doesn’t it test upload speed?
Measuring upload needs a server that receives and discards test data, and this site doesn’t run one. Rather than guess, the test shows only what it really measures: download speed, latency and jitter. Packet loss and ICMP “ping” aren’t measured either.
How much data does a test use?
Up to about 150 MB, usually less: the download part stops after 10 seconds, or earlier when the speed has settled. On a slow connection it uses far less. If you’re on a limited mobile plan, avoid running many tests in a row.
Should I test on Wi-Fi or with a cable?
Test both if you can. A cable shows what your line delivers to that device; Wi-Fi adds distance, walls and other devices, so it is usually slower and less steady. Pause big downloads, streaming and VPNs on your network for a cleaner result, and run the test a few times.
Is anything stored or shared?
No. Results stay on this page and disappear when you leave or press Reset; nothing is saved in your browser or put in the page address. The test only downloads data from this website’s own server, which, like any website, sees your IP address when your browser requests the test files.