Bots are atttacking my website and IP address is showing Cloudflare's address - Access - Cloudflare Community

How to use the Whois Lookup Tool – Envato Author Help Center

Internet Protocol(IP) WHOIS

Whois Footprinting for beginners - Hackercool Magazine

Enriching threat feeds with WHOIS information

Nixintel Open Source Intelligence & Investigations Website Attribution Without WhoIs – Reverse IP Lookups (Part 2)

How to use IP address with whois, after digging it using shell_exec PHP? - Stack Overflow

Advanced search in the APNIC Whois – APNIC

IPNetInfo: Retrieve IP Address Information from WHOIS servers

New release of IP2Location.io IP Geolocation Go SDK - query for an enriched data set based on IP address and provides WHOIS lookup API : r/golang

Deep Whois – Domain, IP Address, IPv6, IDN, ASN and Network WHOIS Toolkit for iPhone, iPad and iOS