Free Tools — No Signup

Email Tools

Free, client-side tools that run entirely in your browser. No data sent to any server — your email headers stay private.

Email Header Analyzer

Paste any email header and instantly get SPF, DKIM, DMARC pass/fail analysis, hop-by-hop latency tracing, and suspicious/blacklisted IP detection. Fully client-side — nothing leaves your browser.

SPF DKIM DMARC Hop Latency Blacklist Check Free

MX Record Lookup

Enter any domain to instantly view its MX records, mail server priorities, and provider detection (Google, Microsoft, Amazon SES, etc.). Client-side DNS-over-HTTPS, no signup.

MX Records Priority Provider Detection Free

SPF / DKIM / DMARC Lookup

Check any domain's SPF, DKIM, and DMARC DNS records. See raw records plus decoded/parsed info. Tries common DKIM selectors automatically. Client-side, no signup.

SPF DKIM DMARC Record Parsing Free