's download scores in both its single- and multithread tests exhibited a bit more range than those of Speakeasy's Speed Test, but they averaged about 11.2Mbps. After running several tests over a span of days, all of Speed Test's download results were within a few kilobits of 11.5Mbps. Of course, the services' tests may be consistently wrong. The most consistent test results were recorded at Speakeasy's Flash-based Speed Test and at 's HTML5-based tester. Others point out that multithread tests such as those used by Ookla ( and branded by many ISPs) don't represent real-world network traffic as well as single-thread tests. Many experts claim HTML5-based speed tests are more accurate than tests that use Java and Adobe Flash. Does the type of speed test make a difference? I ran the tests at about a dozen times: three times the download results were under 1Mbps, five times they were between 1Mbps and 4Mbps, twice they were around 8Mbps, and three times the download speed the test reported topped 10Mbps. The exceptions were upload-test results at, whose testing was so inconsistent I ended up discarding all of the service's results. I ran the tests in both Firefox and Google Chrome on a Windows 8.1 laptop many of the services also test phone network speeds, but I didn't run any of them.) A subsequent download speed test at recorded a much slower rate than a test conducted days earlier.Ĭonversely, the results of the upload tests at the various services were consistently at or just under 2Mbps. (For the record, my ISP promises download speeds up to 12Mbps. However, the same test generated a download speed of 4.87Mbps on the connection two days later. The highest download speed test result I recorded was 13.06Mbps using the HTML5-based test at (shown at the top of this post). Another test using the same service resulted in a download speed reading of 11.237Mbps. When I tested more than a half-dozen network speed calculators, the results varied by a factor greater than 10: the lowest reported download speed was a snail's-pace 783Kbps using 's Flash-based test. Rerunning the download speed test generated a result more than 10 times faster than earlier tests. The slowest download speed test result from was a fraction of the rate promised by my ISP. and Odessa, Texas, don't fare much better: all receive information over their network at speeds far below what their ISPs promise.
The figures were compiled by speed-test service Ookla, which owns .Īccording to Ookla's figures, the folks in Idaho Falls, Idaho, realize only half the download speed their ISPs claim to provide. 's HTML5-based network speed test recorded the fastest download rate of dozens of tests run at different testing sites.Īre you getting all the network bandwidth you're paying for? Good luck trying to find out.Īs Rani Molla reported recently in the Wall Street Journal, some ISPs are delivering download speeds up to 41 percent slower than they advertise.
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