Topic: DNS – Ctrl blog

TP-Link network equipment hijacks some DNS requests

2022-10-15T12:23:00Z

TP-Link network products — including Wi-Fi routers, repeaters, and access points (AP) — use deep packet inspection (DPI) to intercept specific domain name system (DNS) requests. Each product looks for one or two domain names and will hijack the request to issue a local response containing its own internet protocol (IP) address.

Common mistakes in BIMI early-adopter implementations

2022-04-30T23:43:00Z

Two weeks ago, I wrote about the new Brand Indicators for Message Identification (BIMI) draft internet standard. BIMI enables businesses to get their logos displayed next to their email messages in compatible email apps and webapps. As part of the research for that article, I queried the top 3 million domains to see how many had adopted the standard. I found 6647 domains with a default brand indicator, but far from all meet the BIMI requirements.

What domain name to use for your home network

2021-08-15T11:19:00Z

There’s a definitive answer to this question, and you can find it in RFC 8375: use home.arpa. Never heard of it before? It wasn’t assigned as a special purpose top-level domain (spTLD) name for residential and small networks until 2018.

.blog vs .com TLD performance

2020-01-09T12:17:00Z

BunnyCDN shared some interesting performance benchmarks of the name servers responsible for some generic top-level domains (gTLD). The content delivery network (CDN) provider measured Domain Name System (DNS) response times from 50 locations around the world.

What to and when to use preconnect

2019-11-19T17:25:00Z

The dns-prefetch resource hint is intended to look-up domain names before the browser would otherwise know that they’d be needed in the near future. It’s a quick way to speed up the loading of external page resources.