Of course there is a top 5 best speed tests. However, the overview below provides useful practical advices. The first advice is therefore: Continue reading this web page.
Fastest speed test
If you want to know your internet speed as soon as possible, use ZOMDir's Internet Speed at a Glance. This speed test gives you a rough indication of your internet speed.
Most accurate speed tests
If you want a relatively accurate speed test, it is best to use one of the following speed tests:
- Google Fiber - a highly recommended speed test
- Measurement Lab - as good as Google Fiber but slightly slower
If you look at the features of these speed tests, the differences for most parts are negligible. Of these speed tests, Google Fiber is the most climate-friendly speed test. Which of these speed tests is best for you depends on your personal preference.
Please note that you should often use your ISP's speed test when contacting your ISP about slow internet speed.
Router speed test
If you want to measure your router's internet speed, then use RealSpeed.
Note: Realspeed is our first choice in our instruction How to test your internet speed?
True internet speed
If you want to know your true internet speed (which is 12% higher than advertised), you should use SpeedOf.me.
Most details
If you want to know as much details as possible of your internet speed use the speed test of Cloudflare.
Privacy-friendly
If you want to use a privacy-friendly speed test then you should use Cloudflare. Other well known privacy-friendly speed tests are Fast and Google Fiber.
Note that we consider Ookla's Speedtest as the least privacy-friendly speed test there is.
Usability
If you want to use a usable speed test then use Cloudflare or Fast. In addition to these two popular speed tests, there are a multitude of usable speed tests available.
Specific purpose
If you want to do a speed test with a specific purpose in mind, use the Interactive Speed Test Advisor.
Finally, you can also select a speed test based on criteria such as:
- The most accurate speed test
- The amount of data a speed test uses
- The most climate-friendly speed test
- The most accessible speed test
- The security of speed tests
Note that these recommendations are very different from the recommendations of other speed test tests.
Your own speed test?
Some speed tests offer you the ability to host a clone or variation of the speed test on your own website. If you are interested, check out this overview of clone examples.