A and AAAA
Map a hostname to IPv4 and IPv6 addresses. These are the core records used to reach web servers and other Internet services.
Free DNS record checker
DNS Lookup Tool
Inspect the live DNS records published for a domain, or run a reverse PTR lookup for an IP address.
Results come from the DNS resolver used by DevsLoad. Cached answers may differ temporarily between resolvers while changes propagate.
How it works
Check DNS records in three steps
- 01
Enter a domain
Type a hostname such as example.com or paste a full URL. For reverse DNS, select PTR and enter an IP address.
- 02
Choose a record type
Query one record type for a focused answer, or select All common records to inspect the domain configuration.
- 03
Review the live response
Compare record values, mail priorities and available TTLs. Copy the complete result when you need to share or document it.
DNS record guide
What each DNS record means
CNAME
Points one hostname to another canonical hostname. A CNAME cannot normally coexist with other records at the same name.
MX
Lists the mail servers that receive email for a domain. A lower preference number has higher delivery priority.
NS
Identifies the authoritative nameservers responsible for publishing the DNS zone.
TXT
Stores text used for SPF, DKIM, DMARC, site verification and other domain policies. Long values may be split into DNS character strings.
SOA
Describes the zone authority, serial number and timing values used by secondary DNS servers.
CAA
States which certificate authorities may issue TLS certificates for the domain.
SRV and PTR
SRV publishes a service host and port. PTR provides reverse DNS by mapping an IP address back to a hostname.
Read results correctly
TTL, propagation and resolver caching
TTL is a cache lifetime
Time to Live tells recursive resolvers how long they may cache a record. It does not guarantee that every cache refreshes simultaneously.
Propagation is cache replacement
After a DNS change, different resolvers can show old and new answers until their existing cached records expire.
No answer is not always an error
A domain can exist without every record type. For example, many domains have no CAA record or no IPv6 AAAA record.
What is a DNS lookup?
A DNS lookup asks a resolver for records published under a domain name. Those records can point to web servers, mail servers, authoritative nameservers, verification policies and other services.
Which DNS record types can I check?
The tool supports A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV and PTR. The All option checks the common records that can be queried directly at a domain.
Why do I see a different answer from another DNS checker?
Recursive DNS resolvers cache answers. During a DNS change, resolvers in different locations can retain older values until the records’ TTLs expire.
How do I check reverse DNS?
Select PTR, enter an IPv4 or IPv6 address, and run the lookup. The IP owner controls its reverse DNS zone, so the result may be empty even when the address is active.
Can a DNS lookup prove that a website is online?
No. DNS can show that records exist, but it does not test whether the destination server is reachable, secure or serving the expected website.
Does DevsLoad change or save my DNS records?
No. This is a read-only query. The requested domain or IP is sent to the DevsLoad service to perform the lookup, and the tool cannot edit your DNS configuration.