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iMas70

macrumors 65816
Original poster
Sep 4, 2012
1,454
210
MA
I usually use speedtest.net but recently tried a few other sites. I find that the results vary. For example, speedtest.net showed me speeds at 595/41 Mbps while Google Fiber's speed test site gave me a result of 887 and 42. These were done seconds apart. Google Fiber always gives me higher numbers. So... are they all created equal or is the testing done differently?
 
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https://www.dslreports.com/speedtest

I don't see much difference among them all, but your speeds are a little higher than mine, so that might account for it.

I like this one I linked because in addition to speed, it give you a download quality result also.
 
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I also use the DSLReports speed test, I've got the same member name in their forums. My equally favored summary portal is at Sourceforge, HTML5-based:
https://sourceforge.net/speedtest

I think this will be my main test site now! This week I upgraded to Comcast's Gigabit service and bought a Netgear Nighthawk modem/router. Much better than it was before!
 
If you have a fast connection your results will vary depending on which server the test is being carried out on, what its upstream and downstream bandwidth capacities are, how many other people are using them for testing at the time, how many hops (servers en route) between you and the server, and how much traffic is travelling between those hops at the time. Gone are the days when only data centres could transfer a lot of data in one go.

If you want to test your connection to your ISP, the best thing to do is test against a server as close to your closest internet traffic hub as possible. In the UK, servers located in data centres in London will provide the best results in terms of keeping the number of hops to a minimum. For other places, you'd have to look into your local infrastructure.
 
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