Use Cases & Tools

Choose a tool below to run DNS, email authentication, or SSL checks for a domain.

Email DNS Check

Check MX, SPF, DMARC, and DKIM for a domain in one place.

Validate a domain's SPF record and spot syntax problems.

DMARC Check

Check a domain's DMARC policy and reporting configuration.

Check a DKIM selector, or scan common selectors when you don't know yours.

Email Deliverability Score

One combined score for MX, SPF, DKIM, DMARC and blacklist status.

SPF & DMARC Record Generator

Build a valid SPF or DMARC record with a guided wizard.

Blacklist / RBL Checker

Check an IP or domain against well-known DNS-based spam blacklists.

DNS Propagation Check

Check A, AAAA, CNAME, and NS records across multiple resolvers.

SSL/PKI DNS Check

Check SSL/PKI-related DNS records: CAA, TLSA, and DNSSEC.

SSL Certificate Checker

Check a live TLS certificate's expiry, trust chain, and SAN list.

Bulk Domain Lookup

Check one DNS record type across up to 20 domains at once.

Punycode / IDN Converter

Convert international domain names to Punycode (xn--) and back.