https://spftoolbox.com/
SPFToolbox - DNS Lookup Tool
SPFtoolbox is a Javascript and PHP app to look up DNS records such as SPF, MX, Whois, and more
dns lookuptool
https://whois.whiteready.com/
SPFToolbox - DNS Lookup Tool
SPFtoolbox is a Javascript and PHP app to look up DNS records such as SPF, MX, Whois, and more
dns lookuptool