DNS Lookup
Check DNS records for any domain — A, AAAA, MX, TXT, CNAME, NS
What DNS record types can you look up?
A & AAAA records
A records map a domain to an IPv4 address. AAAA records do the same for IPv6. These are the most fundamental DNS records that tell browsers which server to connect to.
MX records
Mail Exchange records specify which servers handle email for your domain. The priority number determines which server is tried first when delivering mail.
TXT records
Text records store arbitrary string data — commonly used for SPF, DKIM, and DMARC email authentication, as well as domain ownership verification for services like Google.
CNAME records
Canonical Name records alias one hostname to another. Useful for pointing subdomains at a root domain or routing traffic through CDN and third-party services.
NS records
Name Server records list which DNS servers are authoritative for your domain. Changing these is required when migrating DNS providers.
Real-time lookup
Queries are made live via Cloudflare's DNS over HTTPS API — you see the current published records, not cached data from hours ago.
Frequently asked questions
What is a DNS record?
A DNS (Domain Name System) record is a database entry that maps a domain name to specific information — such as an IP address, mail server, or text verification string. DNS records tell the internet where to route traffic for your domain.
What is an MX record?
An MX (Mail Exchange) record specifies which mail servers handle email for a domain. When someone sends email to you@example.com, their mail server looks up the MX records for example.com to know where to deliver the message.
How long do DNS changes take to propagate?
DNS changes typically propagate worldwide within a few minutes to 48 hours, depending on the TTL (Time to Live) of the record being changed. Lower TTL values mean faster propagation. Most modern DNS changes are visible within 1–2 hours.
What is a CNAME record?
A CNAME (Canonical Name) record aliases one domain name to another. For example, www.example.com can be a CNAME pointing to example.com. It is commonly used to point subdomains at a root domain or a third-party service.
What is a TXT record used for?
TXT records store arbitrary text data for a domain. They are widely used for domain ownership verification (Google Search Console, etc.), email authentication (SPF, DKIM, DMARC), and other services that need to confirm control of a domain.
Need ongoing DNS monitoring?
SiteBrief watches your DNS records daily and alerts you the moment anything changes — so you catch hijacks, misconfigurations, and propagation issues before your users do.
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