Registrar
DNS at registrars & panels
Add and verify TXT, MX, and CNAME records where your domain is hosted — patterns for the most common DNS UIs.
Cloudflare
TXT splitting, proxy off for mail, and TTL.
Namecheap
Host field, SPF in one TXT, advanced DNS.
GoDaddy
Record limits and DKIM string length.
AWS Route 53
Quoted strings and multi-value answers.
Google Domains / Squarespace
Synthetic records and custom records.
Porkbun
DNS editor and email auth presets.