About the TXT Record Lookup
TXT records hold text that other services read: Google Search Console and Microsoft 365 use them to verify you own the domain, SPF and DMARC use them to fight email spoofing, and many tools add their own verification strings.
Nuqti reads all TXT records for the exact name you type (sub-domains like _dmarc.example.com or selector._domainkey.example.com work too) and labels each one: SPF, DMARC, DKIM, verification or other.