DNS Demystified: Everything You Should Know for Faster Internet!

[SGgrc]

BEAUTIFUL Job, Dave! — Clear, concise and complete. And thanks as always for the mention. I wrote that DNS Benchmark back in 2008 and it's overdue for an update. I'll be sure to let you know when I have that! Thanks again! 👍

[davidglad]

DNS really is one of those amazing technologies that nearly 100.00% of the time it "just works" for why you don't think about it. And why it's quite noteworthy the few times there are issues

[TomCee]

Kudos to the original architects of DNS. It’s an amazing system with performance, reliability, and expansion capability.

[bobross]

I'm mad at you Dave !! I took your autism on-line test and got 42 !! I'm 80 yrs old ... on to my newfound life . Thank you, my friend ! 😎

[larsnergard]

The HUB joke was hilarious. Best part was you didn't even grin:)

[donixion]

Ah yes, Steve Gibson, he also does a security podcast on Twit with Leo LaPort. Truly a legend.

[purpleparrot]

I worked in a Data Center, Bay area. Didn't expect a professional when I saw the title. Excellent and accurate.

[midge]

I’d love to see more networking videos like this. Always so interesting for me

[DeanHorak]

Nice explanation. Just one clarification-pronunciation of live (as in “TTL”) is “live” as in “I live in the US.”

The cache entry “lives” for a specific period of time.

[slkz]

You’re the kind of genius that starts with “com”. Comedic.

[rikachiu]

This is the absolute best DNS explainer video I have ever watched.

[tajjej]

While watching this video I DL'ed DNS Benchmark and ran it. I then changed my DNS server and my response times got MUCH better. I am now letting it build it's "Custom List" for me and will have it retry the test. I found my current DNS server, before changing it, WAY down the list, which is probably why my browser was a bit slow. Thank You, Dave!!

[danielhooke]

4:08 It's "time to live" as in how long the packet will live (short "i"; verb), not "live" (long "i"; adjective) as in "alive".

[timcall]

New to Dave's content but could listen to how he explains about anything. Extremely enjoyable presentation.

[fairalbion]

A *huge* factor in the responsiveness of your setup is how well your connection holds up when it's busy. We're talking latency under load, aka bufferbloat. Crappy home routers cause traffic jams, where the essential background stuff, like TCP ACKs and DNS requests, gets stuck in the routers' buffers. The user experience spirals down from there. So when the DNS benchmark candidates drop down the ratings list, it may not be the server's fault, or the number of hops, or the physical distance. It may just be bufferbloat. There are lots of articles out there on it.

[marksterling]

The ven diagram of Dave’s videos and videos about dns means a huge smile on my face. I run a cluster of recursive DNS servers that then feed into pihole servers. Nice fast, lots of cache and secure dns

[joshharding]

Steve Gibson is an absolute legend! I've been using Shields Up for years and still do on a regular basis.. thanks for the great video Dave

[estpumpkin]

One note: If you are benchmarking different DNS servers to try and eek out every last millisecond of performance, make sure you do some real world benchmarking and not just measuring how long the DNS requests take to return.

The reason is some CDN's will use which DNS resolver a request comes in from in order to decide what server to serve you content from. This is complex, and if they redirect you afterwards is based on how the CDN is configured, how large the content you requested is and a bunch of other factors, but if you speed up DNS by 10ms, but add 20ms to a lot of your small HTTP requests, you may actually reduce your overall web performance even if pure DNS benchmarks are showing up as faster.

[michaelsap]

Your comedic timing and taste is just perfect. Thanks for making content like this. A guy with your experience and resume is rare, and to share it with others to help learn, is even more rare. I'll be checking out your book and thanks again.

[rihards]

I cant express how much clear to the point explanations without any unrelated information are enjoyable to watch, good work sir. Loved the video