Find DNS records

Free DNS Records Lookup Tool — Find All DNS Records for Any Domain Instantly

DNS (Domain Name System) records are the internet's address book — the database entries that translate human-readable domain names into the technical configurations that make websites, email, and other internet services work. When you visit a website, send an email, or verify a domain's ownership, DNS records are working behind the scenes. Understanding, checking, and troubleshooting DNS records is an essential skill for web developers, system administrators, SEO professionals, and anyone managing websites or online services.

SEOToolsN's free DNS Records Lookup tool queries the public DNS system and returns all DNS record types for any domain — A records (IPv4 addresses), AAAA records (IPv6), MX records (mail servers), CNAME records (aliases), TXT records (verification and email authentication), NS records (nameservers), SOA records (zone authority), and more. Whether you are troubleshooting email delivery issues, verifying domain ownership for Google Search Console, checking DNS propagation after a server migration, or auditing a domain's complete configuration — all DNS records are accessible instantly.

Complete Guide to DNS Record Types

A Record — IPv4 Address

The A (Address) record maps a domain name to its IPv4 address — the most fundamental DNS record that tells browsers which server to connect to when loading a website. Example: seotoolsn.com → 104.21.45.67. Multiple A records can exist for the same domain (load balancing). Checking A records verifies that a domain points to the correct server IP address — essential after server migrations, hosting changes, or when diagnosing website accessibility issues.

MX Record — Mail Exchange

MX (Mail Exchange) records specify which mail servers handle email for a domain, along with priority numbers that determine the order in which servers are tried. Without correctly configured MX records, email to your domain cannot be delivered. MX records are critical for: setting up email hosting (Google Workspace, Microsoft 365, Zoho Mail), troubleshooting email delivery failures, and verifying that email is routed to the correct mail service. The DNS lookup tool shows all MX records with their priority values.

TXT Record — Text Verification

TXT records contain text information used for domain verification, email authentication, and various service configurations. Critical TXT records include: SPF (Sender Policy Framework) — specifying which servers are authorized to send email on behalf of your domain; DKIM (DomainKeys Identified Mail) — cryptographic email signing; DMARC — email authentication policy; Google Search Console verification — confirming domain ownership; and various third-party service verification codes (Facebook, Microsoft, etc.).

CNAME Record — Canonical Name Alias

CNAME records create aliases that point one domain name to another. Example: www.seotoolsn.com → seotoolsn.com (the www subdomain points to the root domain). CNAMEs are used for: creating www subdomains, pointing subdomains to CDN or third-party services (blog.domain.com → hosted-blogging-platform.com), and configuring custom domains for services like Shopify, GitHub Pages, or email marketing tools. CNAME lookup verifies these alias configurations.

How to Use SEOToolsN's DNS Records Lookup

• Step 1: Navigate to the Find DNS Records tool on SEOToolsN.com.
• Step 2: Enter the domain name you want to query — e.g., seotoolsn.com.
• Step 3: Select which record types to query — All Records, or specific types (A, MX, TXT, etc.).
• Step 4: Click Lookup DNS Records.
• Step 5: Review the returned records for each DNS record type.
• Step 6: For A records: verify the IP matches your hosting server's IP address.
• Step 7: For MX records: verify mail servers match your email provider's required configuration.
• Step 8: For TXT records: verify SPF, DKIM, DMARC, and verification codes are present and correct.
• Step 9: For NS records: verify nameservers match your domain registrar or DNS provider's servers.
• Step 10: For propagation checking: run the lookup multiple times over 24-48 hours to confirm changes have propagated globally.

Competitor Comparison — DNS Lookup Tools

Tool	All Record Types	Multiple DNS	Propagation	Login Required	Free
SEOToolsN	Yes	Yes	Yes	No	100% Free
MXToolbox	Yes	Yes	Yes	No	Free
DNSChecker.org	Yes	Yes	Yes	No	Free
WhatsMyDNS	Yes	Yes	Yes	No	Free
DNSstuff	Yes	Yes	Yes	Yes	Freemium
Google Admin Toolbox	Yes	Yes	Limited	No	Free

 

Common DNS Troubleshooting Scenarios

Email Not Being Delivered

Email delivery failures are often DNS-related. Check: MX records exist and point to the correct mail servers; SPF record includes all authorized sending servers; DKIM record is present with the correct cryptographic key; DMARC record defines the handling policy for authentication failures. The DNS lookup tool retrieves all these records simultaneously, making email delivery diagnosis fast and comprehensive.

Website Not Loading After Migration

After migrating a website to a new hosting server, the A record must be updated to point to the new server's IP address. DNS changes propagate across global DNS servers over 24-48 hours (TTL-dependent). During propagation, some visitors see the old server while others see the new one. The DNS lookup tool shows the current A record value, helping you verify whether the update has propagated and identify whether visitors experiencing issues are seeing old or new DNS values.

Frequently Asked Questions

How long does DNS propagation take?

DNS propagation time depends on the TTL (Time To Live) value of the DNS record being changed — the number of seconds DNS resolvers cache the record before re-querying for updates. A record with TTL of 3,600 (1 hour) propagates within 1-2 hours after the change. Records with TTL of 86,400 (24 hours) may take up to 48 hours to fully propagate globally. Reduce TTL values to 300-600 seconds (5-10 minutes) before planned DNS changes to minimize propagation delays.

What is the difference between DNS lookup and WHOIS lookup?

DNS lookup queries the DNS system for technical configuration records — A records, MX records, TXT records, etc. WHOIS lookup queries domain registration databases for ownership information — registrant name, registrar, registration date, expiry date. They provide complementary but different information: DNS tells you how the domain is configured technically; WHOIS tells you who registered it and when. Both are useful for domain research; neither provides real-time information about website content.

Why do different DNS lookup tools show different results?

DNS lookup tools query different DNS resolvers (Google 8.8.8.8, Cloudflare 1.1.1.1, your ISP's DNS, etc.) which may have different cached values during DNS propagation. After a DNS change, the record update propagates gradually — some resolvers see the new value before others. This is why checking DNS from multiple resolver locations is useful during propagation: it shows which parts of the world have received the updated records and which are still serving cached old values.

Conclusion

DNS records are the technical foundation of every domain's internet presence — controlling website hosting, email delivery, domain verification, and dozens of other service configurations. Understanding how to look up and interpret DNS records is an essential skill for anyone managing websites, email systems, or online services.

Use SEOToolsN's free DNS Records Lookup tool for all your DNS verification, troubleshooting, and configuration needs. Query any record type for any domain, verify configurations are correct, monitor propagation after changes, and diagnose DNS-related issues with the comprehensive record data that makes DNS management accessible to everyone.