IsHostedBy.com - IsHostedBy is a website where you can lookup where certain websites are hosted.

WhoisThisDomain - Domain name lookup tool that allows you to get information about domain registration from WHOIS server.

Ceipam DNS Lookup - Ceipam DNS Lookup is an online DNS record checker tool that you can use to see whether your website server propagation has been successful or not.

Bulk Whois API - Bulk Whois API is a provider of parsed WHOIS data in JSON with simple API, competitive pricing, top notch support, and more.

Prepostseo DNS Propagation Checker - Prepostseo DNS Propagation Checker is an online tool that allows you to perform a DNS lookup to check the domain name server records against your own website or any other domain, no matter where the servers are located.

Whoisology - Connected database of whois records and whois history