Tool
Free DNS Lookup Tool Online
Query DNS records for any domain instantly. Supports A, AAAA, CNAME, MX, TXT, NS, and PTR records using encrypted DNS-over-HTTPS via Cloudflare.
DNS Lookup
DNS-Abfragen über DNS-over-HTTPS (DoH)
How DNS Works
The Domain Name System (DNS) is often called the phone book of the internet. When you type a domain name like example.com into your browser, a DNS resolver translates it into an IP address (e.g., 93.184.216.34) that computers use to locate servers. This lookup happens in milliseconds, passing through a hierarchy of root servers, TLD servers, and authoritative nameservers to find the correct record.
DNS Record Types Explained
A records map a domain to an IPv4 address. AAAA records do the same for IPv6. CNAME records create aliases, pointing one domain to another. MX records specify which mail servers handle email for a domain, with priority values determining the order of preference. TXT records store arbitrary text data, commonly used for SPF email authentication, domain verification, and DKIM signatures. NS records indicate which nameservers are authoritative for a domain.
Common DNS Issues and How to Diagnose Them
Website not loading: Check if A/AAAA records exist and point to the correct server IP. Email not being delivered: Verify MX records point to your mail provider and check TXT records for valid SPF/DKIM/DMARC configuration. Recent changes not visible: DNS caching may show stale records — check the TTL value and wait for it to expire. Domain transfer issues: Verify NS records have been updated to your new registrar's nameservers.
Privacy & Data Handling
All DNS queries are sent directly from your browser to Cloudflare's DNS-over-HTTPS endpoint. No queries pass through NetScopeKit's servers. Your lookup history is not stored or logged anywhere.
Frequently Asked Questions
- What is a DNS lookup?
- A DNS lookup queries the Domain Name System to find the IP address or other records associated with a domain name. It translates human-readable domain names (like example.com) into machine-readable IP addresses.
- What DNS record types can I query?
- This tool supports A (IPv4 address), AAAA (IPv6 address), CNAME (canonical name alias), MX (mail exchange), TXT (text records for SPF, DKIM, verification), NS (nameserver), and PTR (reverse DNS) record types.
- Is DNS-over-HTTPS more private than regular DNS?
- Yes. DNS-over-HTTPS (DoH) encrypts your DNS queries, preventing your ISP or network operator from seeing which domains you look up. This tool uses Cloudflare's DoH endpoint for all queries.
- Why do I see different results than other DNS tools?
- DNS results can vary due to caching, geographic load balancing, and resolver differences. TTL (Time to Live) values determine how long records are cached. Recently changed records may take time to propagate.
- Can I use this to diagnose email delivery issues?
- Yes. Query the MX records to verify your mail server configuration, and check TXT records for SPF, DKIM, and DMARC policies that affect email deliverability and authentication.