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It definitely looks like testing sites are prioritized. The fastest download speed that I have gotten is maybe 7 MB (bytes) per second; generally it is 2-5 MB per second. The speed test sites generally get 100 Mb per second dowload. In general the best I seem to get is about half the speed of the speed test sites. To me the real speed of the ISP is how fast one can download something one wants, not the result of a test. I would prefer to see results for downloads/uploads from youtube and various CDN networks and popular sites. I would also like to see ISP have a URL that is inside their network to test upload and download so that one can at least isolate what part of the connection might be lagging. Actually, I just used devtools to snag a 25MB file from fast.com. Curl/wget gives a speed of about 3 or 4 MB per second. That does not really seem to match up with fast.com download speed of 70Mb/second. 70/8 is 8.75, which is about double. Is fast.com accurate? Is my math wrong?

discuss

jackson1442|2 years ago

I personally like https://speed.cloudflare.com since it just looks like you're doing typical CloudFlare traffic. The results viewer is also quite nice.

binkHN|2 years ago

Very cool! I never knew about this! I really appreciate the latency during upload test. I've bookmarked this and will stop using speedtest.net. Thank you!

is_true|2 years ago

My ISP (Telecom) gives me a speed of 250Mbps using fast.com and 40Mbps using Cloudflare's tool.

egberts1|2 years ago

MB = megabyte

Mb = megabits

1 byte = 8-bit

gnicholas|2 years ago

For years, AT&T sales reps would refer to MB when they meant Mb. Soon after I started service with them, I called to ask about the promised speed, and the tech insisted they sold Mb/s. He conferenced in a salesperson and was embarrassed to discover that the salesperson talked exclusively in terms of MB/s.

anonymousnotme|2 years ago

I was trying to ask if there was something more that the speed test do other than multiple or divide by 8. Is some other overhead that they add in? If not, then their math or testing seem to be off or curl/wget seem to be different than they get via the browser's javascript engine. To me it seems that the speed test number is inflated or higher than what one will even for the same URL off of netflix or cloudflares URLs used in their speed tests.