Inspect all authoritative DNS and Reverse DNS records (A, AAAA, PTR, MX, TXT, CNAME, NS, SOA, CAA) in real time. Validate email security protocols (SPF & DMARC) and test server IP resolutions.
Retrieving authoritative zone records and security policies.
Unable to resolve records for the specified host.
| Type | Host / Name | Target / Value / IP | TTL | Action |
|---|
The Domain Name System (DNS) is the phonebook of the internet. Here is what each record type controls:
Maps a domain or subdomain to an IPv4 address (e.g. 192.0.2.1) directing web visitors to your web hosting server.
Maps your hostname to a modern 128-bit IPv6 address for next-generation internet routing and speed.
Specifies which email servers handle incoming emails for your domain, along with their relative priority weights.
Carries arbitrary text for domain ownership verification, Google Search Console, SPF, and DMARC anti-spoofing policies.
Creates an alias pointing one subdomain (e.g. www.example.com) to another canonical domain name (example.com).
Delegates a DNS zone to use specific authoritative name servers (e.g. Cloudflare, AWS Route 53, or your registrar).
DNS propagation typically takes anywhere from 5 minutes to 48 hours, depending on the Time-To-Live (TTL) values configured on your previous DNS records and your internet service provider's local caching policies.
Major email providers like Gmail, Yahoo, and Microsoft Outlook strictly require SPF and DMARC records for domain senders. Without them, emails sent from your domain will be rejected or flagged as spam.
TTL (Time To Live) is a 32-bit numeric value that tells recursive DNS resolvers how many seconds to cache a record before querying the authoritative name server again for updated data. Common TTLs are 300s (5m), 3600s (1h), and 86400s (24h).
Enhance your website's performance, cybersecurity, and search engine visibility with our companion utilities.