I found out that Amazon uses Cisco, Apple, and Uber (kind of). Here is how I did it.

#dns #webdev #html #javascript

For anyone who has there own custom domain, you know the value of DNS records. They allow you to validate your domain with other various sites, such as Vercel and Stripe.

Tiago Rangel and I created txted that allows you to see the DNS records of any website. It shows some interesting things. For example:

https://dns.google/ has a TXT DNS Record leading to an XKCD comic.
Amazon has a ton of results.

Try it for yourself and see what happens :)

Top comments (0)

11 Tips That Make You a Better Typescript Programmer

1 Think in {Set}

Type is an everyday concept to programmers, but it’s surprisingly difficult to define it succinctly. I find it helpful to use Set as a conceptual model instead.

#2 Understand declared type and narrowed type

One extremely powerful typescript feature is automatic type narrowing based on control flow. This means a variable has two types associated with it at any specific point of code location: a declaration type and a narrowed type.

#3 Use discriminated union instead of optional fields

...

DEV Community