Documentation
Guides for admins and integrators. For endpoint-level detail, open the API reference or knowledge base.
Welcome
Step-by-step DNS and email guides, plus links to the API reference and knowledge base.
How to Check DNS Propagation: A Developer's Guide
Learn what DNS propagation is, why it takes time, how to check whether your DNS changes have propagated across resolvers, and what to do when propagation stalls.
How to Set Up an SPF Record: Step-by-Step Guide
A step-by-step guide to setting up an SPF record: find your sending sources, build the record, publish it at your DNS provider, and verify it with an SPF checker.
DNS Security Best Practices
Comprehensive guide to securing your DNS infrastructure, protecting against attacks, and implementing security best practices
DNS Migration Checklist for Production Teams
A practical DNS migration checklist for moving providers or nameservers without losing records, breaking email, or guessing during rollback.
Reverse DNS Lookup: Check PTR and FCrDNS
Learn how to check reverse DNS, verify PTR records, confirm forward-confirmed reverse DNS, and diagnose mail-server PTR mismatches before they break delivery.