A Reliable Broadband Speed Test

Martin Brinkmann
Sep 11, 2008
Updated • Nov 16, 2017

One of the first things that users do when they get a broadband Internet connection installed or upgraded, is to visit "speed test websites" on the Internet to measure the upload and download speed of a connection.

This is great for bragging rights but also a good way to check if the advertised speed matches the real speed. or if you are getting less than what you are paying for. Most Internet providers tend to use phrases like "up to" to advertise Internet connection speeds, and depending on your location, you may not be able to come close to those speeds.

One major problem is that the reliability of those speed tests on the Internet is not overly great. Some show lower throughput even if the Internet connection can handle faster speeds. This can be due to server capacities at the speed test host, the location of the test server in the world, or general routing problems that affect the measured speed.

If you run a speed test on a site on Antarctica while you are in Toronto, Canada, you may not get reliable results after all.


broadband speed test

Speed.io is the first broadband speed test on the Internet that measures the speed of an Internet connection correctly. Every other speed test usually misses a few thousand Kbits at the very least. The service measures the download and upload speed, the maximum number of connections and the response time of the Internet connection.

The download speed test result was 14806 Kbit and the result of the upload speed test was 990 Kbit which comes close to the maximum capacities of the 16 Mbit / 1 Mbit advertised speed of my current Internet provider.

The developers of Speed.io claim to utilize 50.000 servers world wide for their speed tests which seems an awful lot but would be an incredible infrastructure if this was the case. Still, it does not really matter if they have 1 or 50K servers as long as the speed tests are accurate.


Speed.io is a handy broadband speed testing service that seems to produce better results thanks to the service's network of worldwide servers.

Update: You may run into limits though when you run a speed test on a very fast connection. It measured my (new) line's download speed at 45000 Kbit/s and the upload at 2000 Kbit/s. While the download speed is close to the 50 Mbit I get, the upload speed fell a bit short at 2 Mbit instead of the 10 Mbit that I have available at my disposal.

software image
Author Rating
no rating based on 0 votes
Software Name
Software Category
Landing Page

Tutorials & Tips

Previous Post: «
Next Post: «


  1. jun said on May 12, 2012 at 5:42 am

    this is only site thats given accurate results based on 4 weeks testing

  2. Hawker said on May 21, 2009 at 2:02 am

    Not to brag or anything but I think I found a better test…. The above test gives basic speed information but no real info you quality or capability of your connection. My favorite Broadband Speed Test site is http://www.ispgeeks.com.

    You get data back like this (testing my connection)

    Speed test statistics
    Download speed: 7437424 bps
    Upload speed: 1646448 bps
    Download quality of service: 97 %
    Upload quality of service: 95 %
    Download test type: socket
    Upload test type: socket
    Maximum TCP delay: 76 ms
    Average download pause: 3 ms
    Minimum round trip time to server: 60 ms
    Average round trip time to server: 61 ms
    Estimated download bandwidth: 35200000bps
    Route concurrency: 4.7328215
    Download TCP forced idle: 77 %
    Maximum route speed: 8738000bps

    Plus it even gives you graphical data such as this (based on the test above).

  3. neptune said on September 17, 2008 at 1:37 pm

    Your download speed on a certain server will depend on a lot of factors before you can get a reliable information on your full speed. If you’re in Japan, and you’re using a speed test website located on Africa… you’re doing it wrong. Find a speedtest(.net) that has servers all across the world and pick one close to you, tha one should be the most reliable.

  4. Val said on September 17, 2008 at 1:08 pm

    Yeah this one sucked too…

    But it was quite fun to see the Upload-meter reach the end (13708 Kbit/s), and then reporting “Very Slow”. I guess it did like a full lap internally and came back on the bad side.

  5. unruled said on September 13, 2008 at 5:10 pm

    incredibly inaccurate, as 99.9% of these speedtests are, for users with more than 10mbit.

    There is only one, out of the many websites I’ve tested, which comes in anywhere close to reliable. It’s this site:


    Im on 100/100 (and get full speeds), and it gives me the following results:

  6. Mirsch said on September 12, 2008 at 10:30 pm

    hm, nice test, but I don’t think that the upload is correct


  7. Master33 said on September 11, 2008 at 11:28 pm

    cool! works excellent, thanks for the link!

  8. GRTerrero said on September 11, 2008 at 6:18 pm

    Pleasantly surprised.

    It surpassed my broadband package maximum of 758kb/s for uploads by 10kb/s. But 110kb/s for downloads is a bit off. Rated “Good”.

    And just this morning I was bitching about poor service. Guess it’s time to upgrade my plan.

  9. Rarst said on September 11, 2008 at 5:28 pm

    Seems to be accurate for download but upload failed once and gave wrong numbers other time.

  10. Matthias said on September 11, 2008 at 4:39 pm

    @Matt – Restart your browser! At me works great, just had to reopen the browser. i also updated to Flash 9 now

  11. Transcontinental said on September 11, 2008 at 4:15 pm

    Started the test, waited, waited … stopped, went to read FAQ, my security appeared in the list mentioning it should be deactivated for the test, I deactivated (I don’t like that, feeling like naked on Broadway), restarted test, waited, waited … stopped, retriggered security, and here I am.

    Anyhow, I know approximately where my speed stands. If I want to know for sure, I go to ftp://test-debit.free.fr/ and start downloading a 700MB file, wait at least three minutes, and the average download speed result is clean.

  12. David Bradley said on September 11, 2008 at 3:54 pm

    Tells me I’m on 6 kb/s, paying for 10…so I want a deduction from my bill! Pah!

  13. Matt said on September 11, 2008 at 3:26 pm

    I just get an error that tells me to update my Flash version. I though it was up-to-date, but followed the link and updated just in case. Returned to Speed.io and got the same error. Looks cool, but I cant get it to work.

Leave a Reply

Check the box to consent to your data being stored in line with the guidelines set out in our privacy policy

We love comments and welcome thoughtful and civilized discussion. Rudeness and personal attacks will not be tolerated. Please stay on-topic.
Please note that your comment may not appear immediately after you post it.