Cloudflare's Speed Test promises better performance insights - gHacks Tech News

Cloudflare's Speed Test promises better performance insights

Cloudflare launched Speed Test some time ago; it is an online service that tests various networking related parameters such as the download speed, latency, or jitter.

Speed tests are a dime a dozen on the Internet, and it is probably a good idea to start with Cloudflare's explanation as to why it launched its own Speed Test on the Internet.

According to Cloudflare, it is all about the insights that its Internet speed test provides.

Although there are a slew of speed testing tools out there, none of them give you precise insights into how they came to those measurements and how they map to real-world performance. With, we give you insights into what we’re measuring and how exactly we calculate the scores for your network connection. Best of all, you can easily download the measurements from right inside the tool if you’d like to perform your own analysis.

Note: Performance data is collected and anonymized according to Cloudflare, but it is not sold. The company uses the data to improve its network. The code that Cloudflare uses is available on GitHub.

Cloudflare Speed Test

cloudflare speed test

The speed test works similarly to other speed tests, e.g. Netflix Fast, in that it runs the measurements automatically when you connect to the site. The test takes a moment to complete as it will perform a number of operations including multiple file downloads.

Cloudflare's announcement hints that Speed Test measures upload speed as well but disabled it because it received reports of incorrect measurements on "very fast connections".

Speed Test displays the average download speed as well as the average latency and jitter at the top. There is also a graph that highlights performance over time.

Below that is the device's IP address, and a map that displays the server location. The latency measurements and download measurements are provided as bar graphs and tabular data.

download measurements

Multiple tests are performed by Speed Test, and tables highlight each attempt and the measured performance. You may hover over i-icons and bars for additional information.

The i-icons provide descriptions of the conducted tests for the most part while the bar overlays values such as min and max speeds.

Interested users may download the speed data to the local system. A click on the download icon near the top downloads the data as a CSV file to the local system. You may open it in a compatible program, e.g. Microsoft Excel, afterwards.

Closing Words

Speed Test is a straightforward Internet performance testing service by Cloudflare that provides a good amount of information. Users may download the data to their systems and check out the code that Cloudflare uses.

Some may have reservations against using Cloudflare's service because of the data collecting that is going on. Then again, most Speed Test sites appear to collect data, and some may even sell the data that they gather.

Now You: How useful are speed tests?

Cloudflare's Speed Test promises better performance insights
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Cloudflare's Speed Test promises better performance insights
Cloudflare launched Speed Test some time ago; it is an online service that tests various networking related parameters such as the download speed, latency, or jitter.
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  1. Anonymous said on June 8, 2020 at 2:28 pm

    Strange it doesnt have a upload test.

    1. ard said on June 8, 2020 at 2:55 pm

      indeed no upload-speed as mentioned in this article

  2. Anonymous said on June 8, 2020 at 2:43 pm

    Although the information pertaining to download is handy, also having upload information would greatly enhance the value of this tool.

  3. said on June 8, 2020 at 2:45 pm

    I’d prefer if they’d promised better malware/phishing blocking performance[1] and faster dns speeds [2] When they announced their dns service it was among the fastest, now….now it’s just another case of over promising and under delivering.


  4. ard said on June 8, 2020 at 3:00 pm

    I can not find an option to change the server to which to test the speed.
    Now I get very high to a national server, though most of my internet is international and I fear that the international speed is far lower (as other speedtests from Ookla show)
    would be very useful if you can select a new server to run the test

  5. Claymore said on June 8, 2020 at 5:23 pm

    All are better speedtests than Cloudflare. Sorry.

  6. Tom Hawack said on June 8, 2020 at 5:32 pm

    I happen to check my connection’s UL & DL speeds with Ookla’s Speed Test but also with NirSoft’s ‘DownTester’ application (DL only). Ookla seems quite reliable, speeds and ping to the testing server of which several available. I focus mainly on the ping, speeds are always about the same. Regarding the protocol used for measurement, no idea how it is conducted but I do observe that DL speed reported by NirSoft’s ‘DownTester’ is somewhat higher than that of Ookla (in both tests servers are chosen as nearest to device’s location).

    Regarding Cloudflare’s Speed Test, nothing was reported: blank. uBlock Origin had nothing to block and nothing was blocked by system-wide defense. No idea at this time of the reason, no time to spare searching the culprit when it comes to Cloudflare which I rather avoid then use.

    1. Martin Brinkmann said on June 8, 2020 at 5:33 pm
      1. Tom Hawack said on June 9, 2020 at 9:07 am

        Yep :=) And still alive, fully functional, latest DownTester is dated 2013-06-11

  7. MartinFan said on June 9, 2020 at 4:29 am

    I went back to my ISP’s dns servers Firefox got too slow for me. Besides if I want anyone to make money from selling my data it should be my carrier for better infrastructure!

  8. MartinFan said on June 9, 2020 at 4:32 am

    I beg to differ, for customers on satellite internet is the best choice.

  9. HarveyMartinFan said on June 9, 2020 at 4:38 am

    And wow that Cloudflare speedtest is using very much data, no go for me.

    1. Iron Heart said on June 9, 2020 at 8:12 am


      Cloudflare is a data hoarder, that’s why I am always criticizing that Mozilla and Google use them as the default provider for their respective DoH implementations.

      Heavy data collection is to be expected whenever you use any service provided by Cloudflare.

  10. Taomyn said on June 9, 2020 at 9:52 am

    Without upload testing it’s next to useless, as that’s often as if not more important than your download speed, especially for time critical activities e.g. video calls, streaming, gaming

  11. Steve V said on June 9, 2020 at 7:28 pm

    I just ran a speed test on my Verizon Fios, Download was 500.18 Mbps and Upload was 39.87 Mbps, lowest Upload speed I’ve EVER seen. Usually they are around the same!

  12. beemeup5 said on June 10, 2020 at 5:18 am is the gold standard of speed tests. I have yet to find a more accurate and comprehensive online connection test.

  13. marsi said on June 11, 2020 at 11:17 am

    the best speed test is nothing more, very accurate

  14. ULBoom said on June 11, 2020 at 4:22 pm

    This is what I use most of the time, has a number of things that can be modified:

    I had Cloudflare for primary DNS in our router but during this Stay at Home thing, they began overchecking requests for “security” concerns and browsing became very slow. Moved to AdGuard’s unfiltered DNS as primary and NextDNS as secondary. Everything suddenly got faster…

    Cloudflare claims to not collect data and they might not but they use an analytics company that clearly does.

  15. Quick Brown Fox said on June 14, 2020 at 11:49 pm

    I ran speed tests using three different testing sites mentioned in this article or in the comments. The tests were run one after another. Here are the download speed results:

    DSL Reports speed test = 234.0 Mbps
    Cloudflare speed test = 117 Mbps speed test = 43.4 Mbps

    Which of these three is the most accurate? I have no idea. Any thoughts or suggestions?