DNS Lookup
Look up DNS records for any domain — A, AAAA, MX, NS, TXT, CNAME, and SOA — instantly using Google's public DNS.
Enter a domain name (e.g. toolstream.in) to look up its DNS records — A, AAAA, MX, NS, TXT, CNAME, and SOA — using Google's public DNS server.
What is DNS Lookup?
DNS Lookup queries all major DNS record types for any domain using Google's public DNS server (8.8.8.8), giving you an authoritative, real-time view of a domain's DNS configuration. It retrieves A (IPv4), AAAA (IPv6), MX (mail), NS (nameserver), TXT (SPF/DKIM/verification), CNAME, and SOA records, along with reverse DNS for the resolved IP address.
DNS is the foundation of every website — if your DNS is misconfigured, nothing else matters. Use DNS Lookup to diagnose propagation issues after a hosting migration, verify SPF and DKIM records for email deliverability, confirm nameservers after transferring a domain, and check competitor infrastructure.
Common Use Cases
- Verifying DNS propagation after changing hosting or nameservers
- Checking SPF, DKIM, and DMARC TXT records for email deliverability
- Confirming MX records are correctly set up for email routing
- Diagnosing website downtime by checking if A records resolve
- Investigating competitor infrastructure via NS and A records
How to Use DNS Lookup
- Enter the domain name you want to query (e.g. toolstream.in — no need to include https://).
- Click 'Lookup' — the tool queries Google DNS for all standard record types.
- Review the results grouped by record type: A/AAAA for IP addresses, MX for mail, NS for nameservers, TXT for SPF/DKIM.
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FAQ
What is a DNS record and why does it matter for SEO?
DNS (Domain Name System) records map your domain name to servers that host your website, email, and other services. Without correct DNS, your website cannot be reached. DNS also affects SEO indirectly: DNS errors prevent crawling, slow DNS response times add to TTFB (Time to First Byte), and missing SPF/DKIM records can hurt email deliverability which affects outreach and link building.
What is the difference between an A record and a CNAME record?
An A record maps a domain directly to an IPv4 address (e.g. 93.184.216.34). A CNAME record maps a domain to another domain name (e.g. www.example.com → example.com), which then resolves to an IP. CNAMEs cannot be used on the root domain (apex) — only on subdomains. A records are used at the root; CNAMEs are used for subdomains like www.
How long does DNS propagation take?
DNS changes can take anywhere from a few minutes to 48 hours to propagate globally, depending on the Time-to-Live (TTL) value of the old records. Lower TTL values (like 300 seconds) propagate faster. If you are planning a migration, lower your TTL 24–48 hours beforehand so changes take effect quickly when you switch.
What is an MX record used for?
MX (Mail Exchange) records specify which mail servers handle incoming email for a domain. If your MX records are missing or incorrect, email sent to your domain will bounce or be rejected. MX records also have a priority number — lower numbers have higher priority, allowing fallback mail servers.
How do I verify my SPF record with this tool?
SPF (Sender Policy Framework) is published as a TXT record and tells receiving mail servers which IP addresses are authorised to send email on behalf of your domain. Look for a TXT record starting with v=spf1. If it is missing, emails from your domain may be marked as spam. DKIM and DMARC are also published as TXT records under specific subdomains.