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Extensions 
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IP Whois & Flags Chrome & Websites Rating
Display Website Country Flag. Website Whois - how many Visitors are visiting, Reputation Reviews, Antivirus Check, Alexa, Incognito
WebRank Whois Lookup
Check WHOIS details including nameservers, contact information, registration details as well as creation and expiration dates.
IP Whois
View info about IP, DNS records, SSL, country flag, domain whois, location, stats and more of any website.
Web Adviser/Whois Lookup
Norton Antivirus Site Adviser. Instant Web Reviews/Comments about any Pages of ANY Websites. Whois Lookup. IP Address Blacklist™
Whois Website Hosting Company Info & IP Whois
Whois tool to lookup any Website Live Hosting Company, IP, Websites on this IP Now/Before, Site IP Change history, Nameservers, etc
Asuka.IO Whois - Domain Name Lookup Tool
Lookup domain information of website that you are currently browsing
Active Whois & Flags extension
Displays the flags, IP address and Whois data of websites. Says the country name of a visited site. Active Whois 5.2++ required.
Rebel.com WHOIS Search
Rebel.com offers you a lightweight browser extention that provides you easy access to our WHOIS lookup service.