Measuring correctly
How to read speed test results: what each number means
When reading a speed test result, compare download and upload with your plan first, then ping, jitter and responsiveness (RPM) with how you use the internet. If speeds are close to your plan, your line delivers; if ping and jitter are low and RPM is high, calls and games will be smooth too. A typical fixed-line result on HIZTESTI in Turkey is 43.5 Mbps down, 14.1 Mbps up and 21 ms ping.
The "typical" values on this page are the ones half of HIZTESTI's measurements sit above and half below; a few extreme results can't skew them. At the end of the download, upload, ping and jitter sections you can see where the last test you ran in this browser sits.
Download: compare it with your plan
Download speed decides streaming, downloads and opening pages. The right comparison is with your own plan, not other people's. If a wired, idle line shows about 94.1% of your plan, it's running at full capacity; we work out why in is 100 Mbps really 100. We explain the unit in what is Mbps.
Run a test first to see where your result sits. Start a speed test
Upload: for calls and backups
Upload speed carries your video on calls and your files to cloud backups. On most lines it's a small fraction of download: typical fixed-line upload on HIZTESTI is 14.1 Mbps. We explain why it's so low in why upload speed matters.
Run a test first to see where your result sits. Start a speed test
Ping: response time
Ping is the round trip to the server, and in games and calls you feel it more than speed. The practical thresholds we use: 30 ms or less is instant, 30–60 ms is unnoticeable day to day, over 60 ms lag becomes obvious in games. Typical fixed-line ping is 21 ms. More in what is ping.
Run a test first to see where your result sits. Start a speed test
Jitter: how consistent the response is
Jitter is how much ping moves during the test. High jitter despite low ping freezes video and cuts audio. Typical fixed-line jitter is 3.3 ms; on mobile networks it's 10.3 ms. Causes are in what is jitter.
Run a test first to see where your result sits. Start a speed test
Responsiveness (RPM): response under load
RPM is how many request-response round trips the connection completes per minute while the line is busy; higher is better. It's measured while the test downloads and uploads, so it shows how your internet will feel while someone at home downloads a big file. On our site's scale, below 200 is clearly congested, above 600 good and above 1200 fluent. Typical value on HIZTESTI is 499 on fixed lines and 149 on mobile networks. If speed is high but RPM is low, your router may have bufferbloat.
Don't trust a single result
- The same line measures differently at different times; we show the evening effect with data in why the internet slows in the evening.
- The gap between Wi-Fi and wired results is often large; separate the effect of Wi-Fi first.
- Run several tests and look at the middle one; a single low result doesn't prove a problem.
- If the result is low, follow the three steps in why is my internet slow to find the cause.
The data in detail: charts and diagrams
Spread of responsiveness (RPM): fixed line vs mobile
| Worst 10% | Typical | Best 10% | |
|---|---|---|---|
| Fixed line | 97 | 499 | 2,000 |
| Mobile network | 44 | 149 | 443 |
HIZTESTI measurements · 1 Jul – 28 Sep 2026 · fixed and mobile
Frequently asked questions
- What is a good speed test result?
- Download and upload close to your plan, low and steady ping, high RPM. A typical fixed-line result on HIZTESTI is 43.5 Mbps down and 21 ms ping, but the real comparison is with your own plan.
- Which number matters more, speed or ping?
- It depends on what you do. For streaming and downloads, download speed; for games and video calls, ping, jitter and RPM matter more.
- What is RPM and why does it matter?
- RPM is the number of request-response round trips the connection completes per minute while the line is busy. It shows how smooth your internet stays while someone else downloads at home; higher is better.
- My result is far below my plan. What should I do?
- Test again over a cable with nothing else using the line. If the wired result is low too, test at different times, keep the result links and send them to your provider.
Sources
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