Internet Speed Tests

Internet Speed Tests

Category: Networking

"How can I know my net speed" is a common question. There are quite a few definitions of "net speed" and several free ways to test it. Here's the scoop on Internet speed tests, and why you definitely should check your speed every once in a while...


What is My Internet Speed?

By "net speed" most people mean, "how fast I can download things" like Web pages, music and movie files, shareware programs, etc. Internet service providers tune their connections so that most of their available bandwidth is devoted to downloading and far less to uploading (sending) things. ISPs do this because a) they know fast downloads are of greater importance to most consumers, and b) they want to discourage people from running high-traffic business Web sites from their consumer priced accounts.

Uploading or downloading, the Internet is "bursty." That means your file transfer will go very fast one instant and very slowly the next. "Net speed" is generally measured as an average, dividing the time it takes to transfer a file of a given size into the file size. If it takes 1 second to transfer a file of 1 MB, your Net speed is 1 MB/s - at that particular time, and between the two particular points.
Internet Speed Test

If you have a DSL connection, your max download speed will be 1.5 - 3 Mb/s. Most cable internet connections will be in the 3-6 Mb/s range, and a fiber optic connection will get you between 10 and 50 Mb/s. The higher speeds in each range usually correspond to a higher price point.

Note that in the two paragraphs above, I used both "MB" and "Mb". The distinction is important, because most downloads are measured in megabytes (MB), while Internet service providers offer plans with the speed listed in megabits (Mb) per second. A megabyte is equal to 8 megabits, so if you're cruising the Net at 30 Mb/s, that's about 3.75 MB/sec. Why do ISPs list their speeds in megaBITS and not megabytes? It's probably just a marketing gimmick - bigger numbers look better.

Net speed is not something you can measure and take for granted forever thereafter. Internet traffic may be heavier between different points and between the same points at different times. Local outages on the Internet may force traffic to take detours, lengthening their trips and slowing Net speed temporarily. It's just like a real road system.

How To Test Your Internet Speed

Now that you understand that there is no cut-and-dried, final "knowing" of your Net speed, let's see how to measure it.

Speakeasy and Speedtest.net are two of the most popular Net speed testing sites online. Both have been around for over a decade, and have evolved with changing technology. But using either is simple: At SpeedTest, just click "Begin Test," select the recommended test site location, and watch the odometers spin up. Speedtest will give you several measurements to ponder.

"Download speed" is the rate at which a file of known size was transferred from the test site to your computer. It depends on the location of the test site selected; the amount of traffic on the route between you and the test site; the traffic load on the test site at the time of your test; and so on. But it's a number.

"Upload speed" is the same as download speed, in reverse. A file of known size is generated temporarily on your computer and transferred to the test site. The same caveats apply.

"Latency" is a significant number that most users don't understand. Latency is the delay between sending a request for data to a remote computer and receiving a reply. The latency reported by Speedtest.net is the sum of the latencies between all of the computers that relay your requests and data between you and the test site. To see how many intermediate "hops" there are and their individual latencies, do a traceroute report:

Click Start, Run, and enter "cmd" to open a command-line window. Type "tracert yahoo.com" and hit Enter. (You can use any domain name you like, instead of Yahoo.com.) Something like this will slowly appear:

Tracing route to yahoo.com [98.137.149.56] over a maximum of 30 hops:

1 <1 ms <1 ms <1 ms Wireless_Broadband_Router.home [192.168.1.1]
2 5 ms 4 ms 4 ms L100.NYCMNY-VFTTP-179.verizon-gni.net [173.52.217.1]
3 6 ms 7 ms 7 ms G1-0-3-1379.NYCMNY-LCR-13.verizon-gni.net [130.81.140.244]
4 23 ms 9 ms 9 ms so-6-3-0-0.BB-RTR1.SEA01.verizon-gni.net [130.81.28.52]
5 13 ms 14 ms 14 ms so-10-0-0-0.LCC1-RES-BB-RTR1-RE1.verizon-gni.net [130.81.19.111]
6 16 ms 17 ms 17 ms so-6-0-0-0.ASH-PEER-RTR1-re1.verizon-gni.net [130.81.10.90]
7 16 ms 17 ms 17 ms 130.81.15.174
8 13 ms 17 ms 17 ms ae-6.pat2.dce.yahoo.com [216.115.102.176]
9 64 ms 64 ms 72 ms as-0.pat2.dax.yahoo.com [216.115.96.21]
10 106 ms 112 ms 164 ms as-1.pat2.pao.yahoo.com [216.115.101.130]
11 108 ms 107 ms 107 ms ae-0-d151.msr2.sp1.yahoo.com [216.115.107.75]
12 106 ms 107 ms 107 ms te-8-1.bas1-1-prd.sp2.yahoo.com [67.195.128.247]
13 105 ms 107 ms 107 ms ir1.fp.vip.sp2.yahoo.com [98.137.149.56]

Here's another good reason to occasionally run an internet speed test. Your ISP may throttle your internet speed without telling you. At my home, I have Verizon FIOS for Internet service, and I'm supposed to get a blazing 20Mb/s download speed. But twice in the last few years, I ran a speed test and found that it was mysteriously maxing out at 10Mb/s. When I contacted Support, they made some lame excuses, and set me back to the higher 20Mb/sec speed. So run a speed test every once in a while, and make sure you're getting the level of service you're paying for.

Do you have something to say about testing your Internet speed? Post your comment or question below...

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Posted by on 26 Jul 2010


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Most recent comments on "Internet Speed Tests"

(See all 14 comments for this article.)

Posted by:

abd
26 Jul 2010

Both speed rating services agree: I have (on dialup - nominal 56 kb/s) 0.04 to 0.05 mb/s download and about 0.4 upload speeds. This translates into a download speed of about 180 megs an hour. When downloading film clips and such, I have become accustomed to speeds of about 18-20 megs an hour, at best. (The download box shows speeds that jump around between 4-6 kb/s.)

Therefore, each of these speed raters think, as a result of actual test, I should have speeds of ten times what I actually do get. (To be fair, I ran the test assuming a local connection. How much difference it would make for a distant one I have no idea.)

Every time I complain to my ISP about dropped connections they tell me to complain to the phone company and the phone company suggests I complain to the ISP.

I wish I knew. Feedback welcome.


Posted by:

bgc
27 Jul 2010

Very helpful if it works!
This is what i saw
209.191.122.70
maximum 30 hops
What does that mean?


Posted by:

RitaLouise
27 Jul 2010

I'm not sure what might be going on, but I visited the website on Internet Speed Tests, and I did not download anything, - but an icon showed up in my system tray with two little computers in blue and the Mbps speed, and I have no clue where this came from. Only that it wasn't there yesterday, but showed up on startup today. Can anyone tell me where this came from?

EDITOR'S NOTE: Did you click the link in my article, or key it in? IF the latter, all bets are off. Consider doing a System Restore if you can't remove this with Control Panel's Add/Remove option. See http://askbobrankin.com/system_restore.html


Posted by:

Adam
31 Jul 2010

My DSL is rated at 2.5 Mb/sec. I use iTunes for downloading podcasts and can check the speed they are downloading. The speed sometimes varies depending on the website I am downloading from but usually is at the max 2.5Mb./sec. (1 minute to download 20 MB).
I also can check the speed by downloading files in Safari where the speed is 311 KB/s (5 minute to download 100 MB) which is the same time.
Thank you Bob for pointing out the difference between Mb and MB. Lets see, 312.5 bytes times 8 equals 2500 bits.


Posted by:

Robin
15 Sep 2010

I have 2 choices. Dial up or Satellite. The best money can buy with wildblue is 1.5MB and I NEVER get anywhere close to that---and at 30% higher that the cost of cable. Any suggestions for folks like me?!!!


Posted by:

Mike
15 Sep 2010

Keep in mind that the speed claimed by your ISP is a theoretical "maximum" speed, one which you'll seldom see. Like claiming your car will do 120mph, even though most of the time you'll be doing closer to 40, and an average is more like 25.

Your ISP should specify a minimum, and that's more typical of what you'll normally see, with occasional bursts of higher speed.

EDITOR'S NOTE: Not necessarily, it depends on what type of connection you have. On a cable connection, you're sharing the bandwidth with everyone in your neighborhood. Think of this like the water lines in a typical building -- everyone share the reource, nobody has a line direct from the source. But with fiber, you do. My Verizon FIOS shows 20Mb/sec download speeds all the time.


Posted by:

MmeMoxie
15 Sep 2010

One of the hardest aspects to explain about broadband connections, is how the 'trunks' work throughout the country.

It really doesn't matter if you are using DSL or Cable or Fiber optic, lines are connected and interconnected. When 'traffic' gets 'jammed up', that is when your download speeds slow down, frequently slow way down. You can have the fastest connection in town, but if, the lines are 'jammed', it really doesn't matter, things typically slow down. It's really like a typical traffic jam on the highways, everything can slow down to almost a 'crawl'.

One point, DSL lines are now up to 6Mbps. Do you get 6Mbps? Not usually. You get a good, strong, solid 5Mbps +. Plenty of 'juice' to get the job done. }:O)


Posted by:

MmeMoxie
15 Sep 2010

Robin,

I certainly relate to your issue. However, you happen to live in the 'no man's land' where there isn't any DSL or Cable or Fiber optic lines. That is your only choices, Dial Up or Satellite. Not only do you get lousy download times, but, you may only be limited to 200MBs or less downloads per day!!! For most of us, that seems like a lot of downloads, per day. In reality, it is nothing.

It can take up to 100MBs to download a Microsoft Update or a tune or a movie or a game. For those of us, who have DSL or Cable or Fiber optic, we are literally spoiled and don't even think about the amounts we download daily. Those with Satellite Internet Service have to count all of their downloads to make sure, they haven't 'maxed' out for the day. Plus, the pricing for their service is, in my opinion, 'off the charts' and really outrageous.

Bottom line, any suggestions? No. Simply, pray that a Cable or DSL or Fiber optic line comes to your house, someday soon.


Posted by:

Tomtom
25 Jan 2012

I turned green with envy when I saw Bob's hopping speeds on his trace route. I just ran one on my satellite connection, and the min. hop time was 698ms and the max. 3290. and all the criticisms about throttling, pricing etc are correct. The only thing I can't criticise is actually the brute force download speed. Once you get it started, it whizzes away, and drops the ball surprisingly rarely. ONCE you get it started. The latency is so high, some sites get fed up of waiting, and you have to reload, and reload. It streams films adequately, I suppose because film streamers send enough advance data to cope with the rollercoaster. The real problem is surfing from one site to another, and streaming music, and don't even think about playing games. I use www.numion.com to measure. They measure surfspeed as well as latency and down- and upload, and explain it all quite well.
If your only choice is mobile or satellite, it's not as clear cut as some make out. If you are clear about the pluses and minuses of each, your personal needs and priorities will determine your better option.


Posted by:

Cheryl Kruid
26 Jan 2012

1 2 * * * Request timed out
3 same as 2

What does this mean? It is 10:50 pm GMT Thursday, Jan 26 where I am... should be very little activity on internet right???? I have DSL, wired...

Thanks!


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Article information: AskBobRankin -- Internet Speed Tests (Posted: 26 Jul 2010)
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