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Tools

Domain DNS Records

Network and domains

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Check DNS records of a domain: MX, TXT, A, NS, CNAME, PTR and four more types.

Data comes straight from DNS. After you change records at the registrar, the update propagates worldwide within a few minutes to 24–48 hours.

Checking domain MX records

MX shows which server accepts mail for the domain. When messages stop arriving, this is the first place to look: after moving to a new host, records from the old one often stay behind. The number before the address is the priority — lower means higher.

Checking the TXT record

TXT holds SPF, DMARC and domain ownership verification codes for Google or Facebook. Several records are normal. The one exception is SPF: there must be exactly one, otherwise the check fails outright. Dedicated SPF check.

Checking A and NS records

The A record points to the IPv4 address of the server hosting the site. NS shows whose name servers run the domain. When a site will not open although the host insists everything works, these two records usually disagree.

Checking CNAME and PTR

CNAME is an alias pointing to another domain. PTR works the other way round: it turns an IP address into a server name, and mail providers check it. For PTR enter an IP address rather than a domain — the tool converts it to the required format itself.

Record types and what they do

DNS turns a domain into a server address. Different record types handle different jobs.

A and AAAA Where the domain points: the server address in the old and new format. These are what you check when a site will not load.
MX Where to deliver the domain’s mail. An error here means no mail arrives at all, even though the site works.
TXT Free-form text. This is where SPF, DKIM and DMARC live, along with domain ownership verification.
CNAME An alias: a subdomain points at another name. This is how external services get your own subdomain.
NS The servers authoritative for the zone. These change when moving to another host or DNS provider.
PTR The reverse record: an address resolves back to a name. Its absence makes mail servers suspicious.

When to check your records

Mail stopped arriving An MX check shows where mail actually goes. Often the record still points at the previous provider.
After a hosting migration The site loads for you but not for a client. That means the change is still propagating.
After setting up SPF or DKIM The record may have saved with an error or not applied at all. A TXT check shows what is really there.
Connecting an external service A service asks for a CNAME or TXT and waits for confirmation. The check shows whether it is visible yet.

Why changes do not apply at once

The TTL value Every record has a TTL — how long it may be cached. Until that expires the world sees the old value.
Provider caching Your ISP keeps its own cache and may ignore a short TTL. That is why you and a client see different things.
Local cache The operating system remembers answers too. Sometimes restarting the browser or network is enough.
Lower the TTL in advance A day before a migration set the TTL to 300 seconds. Changes then propagate in five minutes, not a day.

Check domain DNS records online

This free service is a complete dig command analog in your browser. Enter a domain and in a second get all the key DNS records: A (site IPv4 address), AAAA (IPv6), MX (mail servers), NS (name servers), TXT (SPF, Google and social verifications), CNAME and SOA. It is the fastest DNS lookup without installing anything.

An online DNS check is needed after changing hosting or registrar, when configuring mail (MX, SPF, DKIM), connecting services like Google Search Console, or when a site suddenly stops opening. Compare the actual records with the expected ones and instantly see where the problem is. The tool works with any domains: .com, .ua, .eu and others.

FAQ

How do I check the MX records of a domain?
Pick the MX type in the list above and enter the domain without http. The tool shows every mail server with its priority. No records at all means mail is not configured for the domain. Several records from different providers usually indicate a leftover from a migration — the old entry may still intercept part of your mail.
How do I check a TXT record, and how is it different from SPF?
SPF is a kind of TXT record, so it appears in the general TXT list. Choose the TXT type to see all the domain text records at once: SPF, DMARC, ownership verification codes. If you need SPF specifically, with every tag explained, use the dedicated SPF checker.
How long does it take after changing DNS records?
From a few minutes up to 24–48 hours. The speed depends on the TTL beside each record — the number of seconds providers cache the old answer. Before a planned migration, TTL is lowered to 300, the change is made, then the normal value is restored, so updates propagate in minutes rather than a day.
Why is PTR empty for my domain?
PTR is attached to an IP address rather than a domain, and it is controlled by the owner of that address — your host, not your domain registrar. So enter an IP address rather than a domain. If there is no record at all, that is a support ticket to your host: mail providers check PTR, and its absence hurts sender reputation.
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