Online Tools on the internet

Download YouTube videos to local storage

https://en.savefrom.net/24/
- Paste shared link to video, and download
IP info - $ http ifconfig.co/json or $ curl ifconfig.co/json
regex - regular expressions
- http://txt2re.com/ Interactive regex testing tool.
201401 - jsfiddle Javascript testing.
http://lg.tenet.ac.za/lg TENET Looking Glass, bgp, ping, trace
just-ping Web based ping from 30 points on the intenet to any ip.
oidview mib search
webexplore simple web & webbrowser tricks
Netalyzr Java applet to test internet connectivity.
DNS Test
- http://dnscheck.pingdom.com/
- http://www.robtex.com/dns/vigor.co.za.html great info extracted from DNS etc.
- checkdns.net
- www.dnsgoodies.com
- pingability.com
SSL verify
- View all certs for a domain: https://crt.sh/?q=www.nic.ru
- https://www.digicert.com/help/index.htm
- https://www.howsmyssl.com/
- https://www.ssllabs.com/
Other
- Recruitment / Job sites
Video conversion / DVD
- http://www.axllent.org/docs/view/mencoder-dvd-to-mpeg4/ - mencoder
Speed tests
- http://www.speed-battle.com/
- https://fast.com
- Websites
  - Chromebrowser - devtools - lighthouse
  - https://pagespeed.web.dev/
Email / smtp spoof test
- https://emailspooftest.com/ - 2023

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