NsLookup blog

What is a good TTL for DNS?

October 7, 2021

This article will examine some of the pitfalls that come with low TTLs and will help you select appropriate TTL values.

A poor man's Alexa ranking dashboard

May 6, 2021
A poor man's Alexa ranking dashboard

Sure, there are many expensive tools out there to track the competition of your website. But maybe you just want a quick idea of the amount of traffic competing sites get and don't care too much about the details yet. That was me, so I built a Google Sheets dashboard that scrapes Alexa rankings.

DNS propagation does not exist

April 7, 2021
DNS propagation does not exist

A widespread fallacy among IT professionals is that DNS propagates through some network. So widespread in fact, that there are a couple of sites dedicated to visualizing the geographic propagation of DNS records. But DNS propagation does not exist.