Inspect live authoritative DNS records for any domain or IP address. Verify A, AAAA, MX, NS, TXT, CNAME, CAA, SOA, and PTR records using Google Public DNS over HTTPS.
When a browser or client requests a domain name, a hierarchical 4-tier resolution chain translates the alphanumeric host into an IP route.
The client queries a recursive resolver (like Google 8.8.8.8 or Cloudflare 1.1.1.1). If the record isn't in cache, the resolver traverses the global DNS hierarchy.
The resolver contacts one of the 13 root server clusters (managed by IANA/ICANN), which directs the query to the Top-Level Domain (TLD) server responsible for .com, .org, or .net.
The registry operator's TLD server (e.g. Verisign for .com) responds with the specific authoritative nameservers (NS records) designated by your registrar.
The domain's authoritative server (e.g. Cloudflare, AWS Route 53, or Namecheap) returns the definitive zone records (A, MX, TXT) along with their TTL value.
Silixen supports querying and analyzing all fundamental DNS record types:
Maps a domain or subdomain directly to a 32-bit IPv4 address (e.g., 93.184.216.34). Essential for directing web visitors to your hosting server.
Maps hostnames to modern 128-bit IPv6 addresses (e.g., 2606:2800:220:1:248:1893:25c8:1946) to support next-generation internet routing.
Aliases one hostname to another canonical hostname (e.g., blog.example.com → example.com). Cannot coexist with other records at zone apex.
Directs incoming email messages to your organization's authorized mail servers with prioritized routing weights (e.g., Google Workspace, Microsoft 365).
Specifies which authoritative nameservers hold and publish the master DNS zone files for the domain across the global internet.
Carries human-readable and machine-parseable text data. Widely used for SPF, DKIM, and DMARC email authentication and domain ownership tokens.
Restricts which Certificate Authorities (like Let's Encrypt or DigiCert) are permitted to issue SSL/TLS certificates for your domain.
Defines authoritative zone metadata including primary master nameserver, administrator email, serial number, and refresh intervals.
Resolves an IP address backwards to its verified canonical hostname. Critical for email reputation and preventing spam classification.
When you perform a lookup, the DNS resolver returns a standardized response header. Misinterpreting these status codes can lead to incorrect conclusions about your website:
The query completed successfully. If the Answer section has records, they are valid. If the Answer section is empty, the domain exists, but simply has no active records of the requested type.
Non-Existent Domain. The domain name does not exist in the DNS zone. This indicates an unregistered domain, an expired registration, or a typo in the hostname.
Server Failure. The recursive resolver could not obtain an authoritative answer due to network timeout or DNSSEC signature validation failure. SERVFAIL does not prove that a domain is unregistered.
Query Refused. The queried nameserver refused to process the request due to access control lists (ACLs) or recursive resolver security policies.
Clear answers to common questions about DNS records, authoritative nameservers, propagation delays, and troubleshooting.
Explore our comprehensive guides written by network engineers and web architects.
Comprehensive breakdown of all DNS record types, how domain resolution works, TTL caching mechanics, and practical zone configuration examples for web and email.
Learn how to fix NXDOMAIN, SERVFAIL, DNS_PROBE_FINISHED_NXDOMAIN, propagation delays, and email deliverability failures with safe diagnostic steps.
Privacy Notice: Silixen processes DNS lookups on-demand through Google Public DNS over HTTPS (DoH). We do not record or store your search history, IP queries, or domain lookups.
DNS propagation times may vary between global recursive resolvers due to regional cache policies and upstream ISP caching intervals.
