IP
WHOIS
- Domain Dossier
- http://internic.net/whois.html – Check IP of Name Server
CIDR
Website Speed Test
- https://gtmetrix.com
- http://tools.pingdom.com/fpt/
- http://developers.google.com/speed/pagespeed/insights/
- https://developers.facebook.com/tools/debug/og/object/
DNS Checking
- http://www.dnsinspect.com
- http://www.dnsstuff.com/tools
- http://www.intodns.com
- http://dnscheck.pingdom.com
Ping
- http://www.dnsstuff.com/tools
- http://tools.pingdom.com/ping/
- check your site availability in different country
TraceRoute
Malware
- https://observatory.mozilla.org/ – Test web site for security
- http://sitecheck.sucuri.net/scanner/
- http://www.unmaskparasites.com
- http://www.stopbadware.org/clearinghouse/search
SSL Validation
- https://cryptoreport.websecurity.symantec.com/checker/
- https://www.ssllabs.com/ssltest/
- https://sslanalyzer.comodoca.com/
