Free DNS Checker & Lookup
Look up every DNS record for any domain in seconds — A, AAAA, MX, TXT (SPF/DKIM/DMARC), NS, CNAME, and CAA. Then get free alerts the moment one changes.
Free · no sign-up · resolves every record type live.
What you get
Every DNS record type, in one lookup
Enter a domain and Uptura resolves all seven record types at once — no nslookup, dig, or separate MX-lookup tool required.
- A
A · IPv4 address
The IPv4 address your domain resolves to — an A record lookup shows exactly which server answers for the domain.
- AAAA
AAAA · IPv6 address
The IPv6 address records, for domains served over the modern IPv6 internet.
- MX
MX · mail servers
The mail exchanger records that route email for the domain, with their priority — an MX lookup is the fastest way to check where mail is delivered.
- TXT
TXT · text records
Free-form text records including SPF, DKIM, and DMARC — a TXT lookup surfaces the records that keep your email trusted and out of spam.
- NS
NS · nameservers
The authoritative nameservers responsible for the domain's DNS — useful for confirming a registrar or DNS-host change.
- CNAME
CNAME · aliases
Canonical-name aliases that point one hostname at another, common for subdomains and CDNs.
- CAA
CAA · cert authorities
Certificate Authority Authorization records that control which CAs are allowed to issue SSL certificates for the domain.
Why it matters
Why check your DNS records
A DNS lookup is the fastest way to confirm a domain is configured correctly — but it's only a snapshot of this moment.
See every record in one lookup
Instead of running separate nslookup or dig commands for each record type, this DNS checker resolves A, AAAA, MX, TXT, NS, CNAME, and CAA in a single pass.
Catch email and DNS misconfigurations
A missing MX record, a broken SPF entry in TXT, or the wrong nameservers can silently break mail and traffic. Checking the records is the fastest way to spot it.
A lookup is only a snapshot
A DNS record can change — or be hijacked — the moment after you check it. A one-time lookup tells you what's live right now, not what changes tomorrow.
From lookup to monitor
Turn a one-time lookup into continuous DNS monitoring
The checker shows what's live right now. Uptura's free DNS monitoring watches every record for you and alerts you the moment one changes.
- 1
Add your domains
Point Uptura at the domains you manage — just the hostname. Free during our public beta, no credit card.
- 2
We watch every record for you
Uptura snapshots your A, AAAA, CNAME, MX, TXT, and NS records on a schedule — the same lookup you just ran, running for you around the clock.
- 3
You get alerted the moment one changes
If any record is edited — a hijack, a fat-finger change, or a broken email record — Uptura sends the exact before-and-after to email, Slack, or Discord.
Free during our public beta, no credit card required. Prefer to read more first? See how DNS monitoring works.
FAQ
DNS lookups, answered
How do I check a domain's DNS records?
Enter a domain above and Uptura runs a full DNS lookup, resolving every record type — A, AAAA, MX, TXT, NS, CNAME, and CAA — and lists them so you can see exactly how the domain is configured. It's the quickest way to check DNS records without running nslookup or dig in a terminal.
How do I look up a domain's MX records?
Type the domain into the checker and it shows the MX (mail exchanger) records along with their priority. An MX lookup tells you which mail servers receive email for the domain and in what order — handy for verifying email is routed correctly or debugging deliverability.
How do I check SPF, DKIM, and DMARC records?
SPF, DKIM, and DMARC all live in TXT records. Run the lookup and check the TXT section: SPF starts with "v=spf1", DMARC is on the _dmarc subdomain and starts with "v=DMARC1", and DKIM lives on a selector subdomain. Seeing them together makes it easy to confirm your email authentication is in place.
What is a DNS lookup?
A DNS lookup is the process of querying the Domain Name System to find the records attached to a domain — the IP addresses it points to (A/AAAA), the mail servers that handle its email (MX), its nameservers (NS), and text records like SPF. This tool performs that lookup for every record type at once and shows you the results.
What are CAA records and why do they matter?
A CAA (Certificate Authority Authorization) record lists which certificate authorities are allowed to issue SSL certificates for your domain. Checking them confirms only your intended CAs can issue certs — and because an unexpected CAA change can signal an attempt to mis-issue a certificate, Uptura also watches CAA records for changes when you monitor a domain.
Is this DNS checker free?
Yes — the DNS lookup tool is completely free and needs no sign-up. Check as many domains and record types as you like. If you'd rather not re-run the lookup by hand, you can set up free automated DNS monitoring during our public beta.
Can I get alerted when a DNS record changes?
Yes. A lookup only shows what's live right now — the real risk is a record changing later, whether from a hijack or a mistaken edit. Add your domains to Uptura and it watches your A, AAAA, CNAME, MX, TXT, and NS records for you, alerting you with the exact before-and-after the moment one changes — free during our public beta.
Why can't I see any DNS records for my domain?
If the lookup returns nothing, the domain may not exist, may be newly registered and not yet propagated, or may not have that record type configured. Double-check the spelling, and remember that some record types (like AAAA or CAA) simply aren't set on every domain.
Never get caught by a silent DNS change again
Add your domains and let Uptura watch every record for you — free during our public beta, no credit card required.
Free during beta · no credit card required