Free DNS & Email Security Tools
Instant, free tools to audit domain records, build email authentication policies (SPF, DMARC, DKIM, BIMI), and check SSL & blacklist statuses.
SPF Record Generator
Construct compliant Sender Policy Framework (SPF) records to authorize sending mail servers and prevent email spoofing.
DMARC Policy Builder
Define your DMARC enforcement policy (none, quarantine, reject) and configure aggregate report delivery targets.
DKIM Record Builder
Format cryptographic DomainKeys Identified Mail (DKIM) TXT records and selectors for email verification.
BIMI Record Generator
Generate Brand Indicators for Message Identification (BIMI) records to render your official logo in user inboxes.
WHOIS & RDAP Lookup
Query domain registration records, registrar details, registration lifecycle dates, and nameservers.
DNS Record Inspector
Inspect live A, AAAA, MX, TXT, CNAME, and NS records across global DNS resolution nodes.
SSL Certificate Checker
Verify SSL/TLS certificate validity, issuing authority, expiry countdown, and cipher configuration.
DNSBL Blacklist Checker
Query major anti-spam RBL and DNSBL databases to ensure your domain and sending IP addresses are clean.