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DNS misconfigurations and email delivery failures cost hours of debugging time. Email Armory gives you free, instant tools to query DNS records, inspect HTTP headers, check SSL certificates, trace redirects, and scan ports — so you can diagnose issues in seconds instead of hours.
Every web application touches DNS, email, and TLS. Whether you're integrating a transactional email provider, migrating to a new DNS host, or debugging why your staging environment won't resolve — you need fast, reliable lookup tools that don't require installing CLI utilities or signing up for accounts.
Email Armory runs all lookups using native Node.js APIs — no external API dependencies, no rate limits from third-party services. You get raw results instantly, whether it's a full DNS record set, an SSL certificate chain, or the complete HTTP redirect path.
The tools developers reach for most — all free, no signup required.
Query all DNS records for any domain
Find mail exchange servers for a domain
Find authoritative nameservers for any domain
View all TXT DNS records including SPF, DKIM, and verification
Analyze HTTP response headers and security header configuration
Verify SSL/TLS certificate details and expiration
Trace the full HTTP redirect chain for any URL with status codes and timing
Check open SMTP, IMAP, POP3, and web ports on any domain
When your transactional emails aren't arriving, check MX records, verify SPF includes for your ESP, and trace email headers to find where delivery breaks down.
Moving DNS providers or changing nameservers? Verify all record types transferred correctly — A, AAAA, MX, TXT, NS, CNAME — before updating your registrar.
Add DNS and SSL checks to your deployment pipeline. Verify your domain's SSL certificate isn't expiring, your DNS records are resolving, and your security headers are set.
Audit HTTP security headers (HSTS, CSP, X-Frame-Options), check SSL/TLS configuration, scan open ports, and verify redirect chains — all from one place.
Browse all 17 free tools — DNS, email, and security — no signup required.
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