BetterWhois

BetterWhois lets you lookup WHOIS information for domains hosted by most registrars.

CIRA WHOIS

CIRA WHOIS specializes in lookups for domain names that end with .CA extensions.

Compress PNG Images Online

Compress PNG is my favourite PNG compression and optimization tool. It compresses PNG images into PNG-8 format with transparency support. This free online tool ALSO converts your PNG images to JPG, JPG images to PNG and SVG images to PNG.

DNS Propagation Checkers

DNSPropagation.net and WhatsMyDNS.net let you instantly perform DNS lookups to check a domain names’ current IP address and DNS record information against multiple name servers located in different parts of the world. This allows you to check the current state of DNS propagation after having made changes to your domain’s records.

Email Checker

Email Checker is a free and straightforward tool for verifying whether the email address is real or not.

Email Signature Generator

This is the most comprehensive email signature resource website on the web. My favourite is the useful FREE email signature generator from CodeTwo.

GeoPeeker

GeoPeeker.com is a tool for viewing sites from different geographic locations.

GoDaddy

Go Daddy lets you lookup WHOIS information and is the world’s largest domain name registrar.

Have I been PWNED?

Have I been pwned is a website that allows Internet users to check if their personal data has been compromised by data breaches.

ICANN WHOIS Search

ICANN’s WHOIS lets you lookup WHOIS information for any generic domain.

Spelling Errors

Escape the fate that more than half of websites share. Use Spell Scan to find spelling mistakes on your website. Even one spelling mistake can negatively impact your site’s credibility. This service can also find broken links. They will try to get you to sign up for their paid monitoring service to receive email updates of issues found on your website.

Trend Micro HouseCall

Trend Micro’s HouseCall Free Online Virus Scan allows you to detect and remove viruses, worms, spyware, and other malicious threats for free. Even if you have other antivirus protection in place, you could use it to get a second opinion if you suspect that malware may have infected a PC.

Video Cutter

Online Video Cutter comes in handy when you need to cut a small (MP4, AVI, MPG, or 3GP) video file. It does not require installation and it works in your browser.

Whois.com

With Whois.com lets you lookup WHOIS information for any domain name.