Learn How Speedtest.net Works Using Wireshark

In this video we use Wireshark to demonstrate how the popular website Speedtest.net measures your internet bandwidth. We talk about the theory of TCP and congestion control, and show you how to capture and analyze the Speedtest traffic in real time.
Useful videos:
How to Capture Traffic in Wireshark - • How to Capture Traffic...
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[@DITLessons]

I am from Turkey. I don't speak much English, but I use KZbin translation while watching the video. Thank you very much for teaching me valuable information. I hope you achieve your goals. God bless you.

[@SauravKumar-vg9mq]

Very informative video. I like that you not explain only theory or only practical but both in a reasonable amount of time with all the steps and related info. Loved your content. Keep up the good work. I will keep watching all the upcoming videos. After a long time KZbin recommended me a good channel.

[@plaintextpackets]

Glad it was helpful!

[@upelister]

Thank you, helping us to understand how computer networks are running.

[@nigelholland24]

Great video learned a lot especially wireshark thanks

[@plaintextpackets]

Glad you enjoyed it

[@davesradiorepairs6344]

Awesome - This will be very useful in assessing customer complaints about latency and throughput , etc... THanks !!

[@plaintextpackets]

Thanks Dave!

[@luckbeforeleap]

Nice explanation. As for your 60Mbps down speed, from what I can see there's an inverse relationship between people's excitement about multi-Gigabit Internet speed and how much they actually know about networking. Most people can get by easily on 100Mbps or less for home Internet.

[@plaintextpackets]

I agree :-)

[@TSPhotoAtlanta]

@@plaintextpackets I wonder if anyone has studied and modeled, from the consumer viewpoint, how lag, and other factors that affect speed (I know that sounds wrong, but since my first modem upgrade it has seemed true) change with different plans both from the same provider and comparing similar top rates between them. And for that matter, similar thoughts about fiber to the house vs other types of delivery. We get 100ms even from their local servers (usually cache instead of direct connection;) at gig bandwidth a lot of sites ping < 20ms…that’s down tp their responses, network congestion, size location and backplane of the ISP (national is better.) Speedtest uses multiple servers frequently for tests (I think it’s their experiment) which is likely why you saw multiple packet origins.

[@TSPhotoAtlanta]

1st modem upgrade - US Robotics…was it 15,500 baud?

[@joerockhead7246]

great video. You had an extra left parenthesis @ 16:34 . Thanks.

[@plaintextpackets]

Yeah just realized, was supposed to edit that out! :D

[@rafaeldacosta8581]

nice explanation

[@djdawso]

Thanks for updating that intro voice! The old one was pretty annoying.

[@plaintextpackets]

It was! Funny enough I generated it using AI two years ago when I posted my first real video, then I didn’t post again seriously until this year. Shows you how much the AI has improved