Upload a QR code image and extract the data out of it.
Get all possible details about an SSL certificate.
Find A, AAAA, CNAME, MX, NS, TXT, SOA DNS records of a host.
Get approximate IP details.
Get all the HTTP headers that an URL returns for a typical GET request.
Get all possible details about a domain name.
Check if the URL is banned and marked as safe/unsafe by Google.