Useful Links & Tools

Fast , (Check the current speed of your internet connection)

UTF-8 History

Public Suffix List

Punycode Converter

What's My Browser , (Tells you what browser and version you have, the type of device you are using, which operating system you're using)

GTmetrics , (Measure your site performance and web vitals)

Experte , (Pagespeed checker that allows you to automatically test up to 500 URLs)

Builtwith , (Find the web hosting company, e-mail provider and everything else about a website)

Manage Engine , (Many free tools for Network, DevOps and Site Reliability Engineers)

W3C , (W3C is leading the web to its full potential by developing protocols and guidelines that ensure the long-term growth of the web)

Let's Encrypt , (Let’s Encrypt is a free, automated, and open certificate authority [CA], run for the public’s benefit. It is a service provided by the Internet Security Research Group)

Certbot , (Certbot is a free, open source software tool for automatically using Let’s Encrypt certificates on manually-administrated websites to enable HTTPS)

Certify The Web , (Certify The Web is a free management ACME automated https certificates for IIS, Windows and other services)

Posh-ACME , (Create publicly trusted SSL/TLS certificates)

SSL Labs , (SSL Labs is a collection of documents, tools and thoughts related to SSL)

An Introduction to Multilingual Web Addresses

Chrome , (Internationalized Domain Names [IDN] in Google Chrome)

Mozilla , (Mozilla IDN Display Algorithm) , (Build one-page fully responsive websites in minutes that look good on every screen)