Domain DNS Checker
How to Check DNS Records
Enter Domain Names
Type or paste the domain names you want to check in the input field. Enter one domain per line, up to 100 domains at once.
Click Query DNS
Click the Query DNS button to start checking DNS records. Our system queries all DNS record types including A, AAAA, MX, TXT, CNAME, NS, and SOA records.
View DNS Records
Results display all available DNS records for each domain. You can see IP addresses (A/AAAA), mail servers (MX), text records (TXT), name servers (NS), and more.
DNS Record Types
A Record (IPv4 Address)
Maps a domain name to an IPv4 address. This is the most common DNS record type, pointing your domain to a server's IP address.
AAAA Record (IPv6 Address)
Maps a domain name to an IPv6 address. Similar to A records but for IPv6 addresses, providing support for the newer IP protocol.
MX Record (Mail Exchange)
Specifies mail servers responsible for receiving email messages for the domain. Includes priority values to determine the order of mail servers.
TXT Record (Text Record)
Contains text information for various purposes, including SPF records for email authentication, DKIM keys, and domain verification codes.
CNAME Record (Canonical Name)
Creates an alias from one domain name to another. Commonly used for subdomains pointing to the main domain or external services.
NS Record (Name Server)
Specifies the authoritative name servers for the domain. These servers are responsible for DNS resolution for the domain and its subdomains.
SOA Record (Start of Authority)
Contains administrative information about the domain zone, including the primary name server, administrator email, serial number, and timing parameters for zone transfers.
Pro Tips for DNS Record Analysis
Email Configuration Verification
Use our Domain DNS Checker to verify email setup before launching campaigns. Email deliverability experts recommend checking MX records and SPF TXT records to ensure 99% inbox delivery. Our Domain DNS Checker helps prevent bounced emails and maintains sender reputation by confirming proper DNS configuration for email services.
Website Migration Validation
Validate website migrations with comprehensive Domain DNS Checker analysis. Web infrastructure specialists suggest pre and post-migration DNS checks to prevent downtime. Our Domain DNS Checker ensures A records point correctly, CNAME aliases function properly, and NS records maintain domain authority throughout transitions.
Security Certificate Troubleshooting
Diagnose SSL/TLS certificate issues using our Domain DNS Checker. Cybersecurity professionals use DNS checks to verify domain ownership before certificate issuance and troubleshoot validation failures. Our Domain DNS Checker reveals A record inconsistencies that cause certificate errors and helps maintain secure HTTPS connections.
Understanding Domain DNS Checker
🔍What is Domain DNS Checker?
Domain DNS Checker is an essential diagnostic tool that queries domain name system records to reveal how domains are configured on the internet. When you use our Domain DNS Checker, you access the same information that web browsers and email servers use to locate and verify domains. Named by Paul Mockapetris in 1983, DNS remains the internet's phonebook, making Domain DNS Checker crucial for network administrators.
Domain DNS Checker serves IT professionals, marketers, and business owners who need to verify domain configurations, troubleshoot connectivity issues, or analyze competitor infrastructure. Our Domain DNS Checker processes millions of DNS queries daily, providing instant insights into domain setup without requiring technical expertise or command-line tools.
⚡Why Domain DNS Checker Matters
Domain DNS Checker provides critical insights that prevent costly downtime and security vulnerabilities. Network administrators rely on Domain DNS Checker for proactive monitoring, while marketing teams use it to verify campaign tracking setups. SEO professionals leverage Domain DNS Checker to ensure proper domain forwarding and international targeting through geographic DNS analysis.
Cybersecurity experts consider Domain DNS Checker essential for threat hunting and incident response. Email administrators depend on Domain DNS Checker for maintaining deliverability through MX and SPF record verification. For comprehensive domain analysis, combine Domain DNS Checker with WHOIS lookup to understand both technical and ownership aspects of domain infrastructure.
Frequently Asked Questions
What DNS records can I check?
Our DNS checker supports all major DNS record types: A (IPv4), AAAA (IPv6), MX (mail exchange), TXT (text records), CNAME (canonical name), NS (name servers), and SOA (start of authority) records.
How accurate are the DNS records?
Our tool queries DNS records directly from authoritative name servers. The results are as accurate as the DNS configuration for the domain.
Can I check multiple domains at once?
Yes, you can check up to 100 domains in a single query. Simply enter each domain on a new line and click the query button.
Why are some DNS records missing?
Not all domains have all DNS record types configured. For example, a domain may only have A records but no MX records if it doesn't use email. This is normal and depends on the domain's configuration.