Advanced DNS Checker
Perform a comprehensive health check on domain routing, name servers, and mail exchanges. Detect misconfigurations before they impact your traffic or email deliverability.
DNS Report for
Live ResultWhat is an Advanced DNS Checker?
An advanced DNS checker is a high-performance network diagnostic utility used to verify the technical health of your domain's routing system. By performing real-time queries against authoritative nameservers, it allows you to identify configuration errors that could lead to website downtime or blocked emails.
🌐 The Internet's Phonebook
The Domain Name System (DNS) is the fundamental directory of the internet. When you type a domain into your browser, DNS records translate that human-readable name into the machine-readable IP addresses where the website is hosted. Our tool ensures your domain routing is perfectly optimized for global accessibility.
🛡️ Why run a DNS Health Check?
Migrating to a new host or adding a CDN like Cloudflare often causes record mismatches. By scanning your Name Servers, A records, MX records, and TXT records, you can ensure that your configuration changes have achieved global propagation without causing service interruptions.
Understanding Critical DNS Records
Our tool analyzes the core records that search engines and mail servers rely on. If any of these are missing, your domain may disappear from search results or fail to deliver critical emails.
Email Deliverability (MX & SPF)
MX Records dictate where your domain's email is routed. Without them, your domain cannot receive mail. Furthermore, TXT records (containing SPF and DKIM data) prove your server's identity. If these are misconfigured, major providers will reject your outgoing mail as spam.
Website Accessibility (A & NS)
The A Record links your domain to the physical server IP. If this record is incorrect, your website will return a "Server Not Found" error. Your Name Servers (NS) define which host is authoritative—ensuring these are correct is the first step in any technical SEO audit.
Frequently Asked Questions
Why do I need to check my DNS TXT records?
TXT records are text-based entries used primarily for security and ownership verification. They are absolutely essential for configuring SPF, DKIM, and DMARC policies, which prove to email providers like Gmail or Outlook that your emails are legitimate. You also use TXT records to verify domain ownership for Google Search Console and other web services.
What are Reverse MX A (PTR) Records?
A standard DNS record (like an A record) points a domain name to an IP address. A PTR (Pointer) record does the exact opposite—it points an IP address back to a domain name. Mail servers use PTR records to verify that the server sending an email actually matches the domain it claims to be from. If your PTR records are missing or mismatched, your emails will likely be flagged as spam.
What is the purpose of an SOA Record?
The Start of Authority (SOA) record is a core DNS component that stores essential administrative information about a domain. This includes the primary name server, the email of the domain administrator, and the domain serial number—which tells secondary servers exactly when the DNS zone has been updated.
How long does DNS propagation take?
DNS propagation can take anywhere from a few minutes to 48 hours. This delay is caused by ISP nodes across the globe refreshing their cache according to the TTL (Time to Live) settings defined in your records. Our tool allows you to see the current live status of your records on the authoritative nameservers.
Streamline Your Network Workflow
Once you have verified your DNS propagation, you can audit your domain's ownership, check SSL certificate validity, or inspect server response headers using our dedicated utilities.
Whois Lookup
Access public registration records to determine domain ownership, expiry dates, and registrar details.
SSL Checker
Validate your SSL certificate installation and monitor expiration dates to prevent security warnings.
HTTP Headers
Inspect server response codes (200, 301, 404) and security headers like HSTS and X-Frame-Options.
IP Lookup
Trace any IP address to its geographical location, ISP provider, and network organization data.
Tech Checker
Discover the CMS, server type, and third-party scripts powering any website on the internet.
Sitemap Generator
Create and validate XML sitemaps to ensure Google can properly discover your newly routed pages.