Check if website is online
Lookup domain registration info
Lookup DNS records
Find location of IP address
Test connectivity to a host
Check SSL certificate validity
Check HTTP headers
Check URL redirects
Take website screenshot
Test page loading speed
Extract meta tags from any webpage
Check Google cache status
Check Google index status
Check Alexa ranking
Check Google PageRank
Calculate website value
Check for malware
Check for suspicious domains
Check website security
Scan open ports
Check for broken links