Connectivity / DNS / Tools
Cloudflare Speed Test
https://speed.cloudflare.com/
Speedtest by Ookla
https://www.speedtest.net/
FAST.com
https://fast.com/
1.1.1.1 Help (DNS test)
https://1.1.1.1/help
DNS Leak Test
https://dnsleaktest.com/
What Is My IP
https://www.whatismyip.com/
IPinfo
https://ipinfo.io/
DIG Web Interface
https://www.digwebinterface.com/
MXToolbox
https://mxtoolbox.com/
Down For Everyone Or Just Me
https://downforeveryoneorjustme.com/
SSL Checker
https://www.sslshopper.com/ssl-checker.html
Known Websites (quick browsing tests)
AOL
https://www.aol.com/
Yahoo
https://www.yahoo.com/
Daily Mail
https://www.dailymail.co.uk/
New York Post
https://nypost.com/
Sky News
https://news.sky.com/
BBC News
https://www.bbc.co.uk/news
The Guardian
https://www.theguardian.com/uk
Reuters
https://www.reuters.com/
CNN
https://www.cnn.com/
The New York Times
https://www.nytimes.com/