Type a domain, get its SPF record with every mechanism explained, the DNS-lookup count against the limit of 10, and what to fix.
Privacy: this tool runs entirely in your browser. When you click Check, one DNS query for the domain you typed goes to Cloudflare's public DNS resolver (Google's as fallback). Nothing is stored, logged or sent to GrowthPal.
SPF (Sender Policy Framework) is a TXT record on your domain listing the servers allowed to send email as you. Receiving servers check it on every message. No record, a broken record, or more than 10 DNS lookups inside it and your deliverability quietly bleeds, which in cold email means the spam folder.
For cold outbound, SPF lives on your sending domains, and those should never be your primary domain. That separation is the first rule of the infrastructure playbook.
Tools check the plumbing. The message is what your market answers. Get your TAM mapped, your ICP broken down and 5 angles written for your buyers, free.