Note: You can enter a domain name, an IPv4 address, or both. For a domain name, all available records of these 8 DNS types will be fetched: A, AAAA, MX, NS, SPF, SOA, TXT, and CNAME. For an IP address, only the PTR record will be fetched.
The DNS Lookup tool queries authoritative nameservers in real time to retrieve all DNS resource records for a domain name or IP address. It returns all 8 major record types - A, AAAA, MX, NS, SPF, SOA, TXT, and CNAME - in a single query. For IP addresses, it returns the PTR (reverse DNS) record. Whether you're troubleshooting email delivery, verifying a website migration, or mapping threat infrastructure, DNS Lookup is the starting point.
After changing hosting providers or DNS configurations, DNS Lookup verifies the changes have propagated correctly - confirming A records point to the right IP, CNAME aliases resolve as expected, and nameservers have been updated. For nameserver-specific queries, use the NS Lookup tool.
Email deliverability problems almost always trace back to DNS. DNS Lookup retrieves MX records (mail routing), SPF records (sender authorization), and TXT records (DKIM, DMARC) simultaneously - giving a complete email authentication picture in one query. Use the dedicated MX Lookup for deeper mail server analysis.
DNS records are foundational intelligence in threat investigations. Checking A records reveals the IP hosting a suspicious domain; NS records show who controls DNS; TXT records can expose misconfigured services or attacker-planted data. For historical DNS - seeing how records looked during a past attack - use Historical DNS Lookup.
Developers use DNS Lookup to verify zone configurations, debug CNAME chains, and confirm CDN or load balancer configurations. The structured JSON output via the DNS API integrates directly into monitoring scripts, CI/CD pipelines, and uptime alerting systems.
Use the DNS lookup API to retrieve domains’ CNAME records with recursive depth up to 5 levels, supporting both bulk and live queries.
