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DNS Lookup

100% free · Runs 100% in your browser · No signup needed

Domain
Record type

Queries Google's public DNS-over-HTTPS JSON API (dns.google/resolve) directly from your browser — free, no API key, nothing passes through our server. DNS answers are cached by resolvers, so very recent DNS changes may take a while to show (that's the TTL at work).

Try an example: google.com MX

Sur DNS Lookup

What Is a DNS Lookup?

Every time you visit a website, send an email, or open an app, an invisible directory service works behind the scenes: the Domain Name System (DNS). It translates human-readable domain names like example.com into the IP addresses and routing records that computers actually use. A DNS Lookup tool lets you peek inside that directory and see exactly which records a domain publishes — the same records your browser, mail server, and security tools consult every day.

Our free DNS Lookup tool queries live DNS data through Google's Public DNS-over-HTTPS JSON API and displays the results in a clean, readable format — no command line, no dig or nslookup required, and no software to install. Type a domain, pick a record type, and within a second you will see the authoritative answers: IP addresses, mail servers, name servers, text records, and more.

Because the lookup runs entirely in your browser against a public, CORS-enabled API, there is nothing to configure and nothing to pay for. It is the fastest way to answer questions like "Where does this domain's email go?", "Which IP does this site resolve to?", or "Is that TXT verification record actually published?"

How It Works: DNS-over-HTTPS, 100% Client-Side

Traditional DNS tools run on a server or rely on your operating system's resolver. This tool takes a modern route: it sends a simple HTTPS GET request directly from your browser to Google's Public DNS-over-HTTPS (DoH) JSON endpoint:

https://dns.google/resolve?name={domain}&type={TYPE}

That endpoint is free, requires no API key, and is CORS-enabled, which means a web page is allowed to call it directly. Your browser asks Google's resolvers for the records, receives a JSON response, and this tool formats it into a readable answers table plus an optional raw-JSON view. No proxy server, no backend code — the lookup is 100% client-side, and no query ever touches our infrastructure.

The API was verified live on 2026-10-20. A lookup for example.com (type A) returns a response shaped like this:

{"Status":0,"Question":[{"name":"example.com.","type":1}],"Answer":[{"name":"example.com.","type":1,"TTL":300,"data":"104.20.23.154"}]}

The Status field tells you what happened: 0 means success. Any other status is translated into a plain-English explanation — for example, status 3 means NXDOMAIN, i.e. the domain does not exist. Each answer row shows the record name, numeric type, TTL (how long resolvers may cache it, in seconds), and the record data itself.

DNS Record Types You Can Query

  • A — maps a domain to its IPv4 address (e.g. 104.20.23.154). The record behind every website visit.
  • AAAA — the IPv6 equivalent of A; increasingly important as IPv6 adoption grows.
  • MX — lists the mail servers that accept email for the domain, with priority values. Essential when debugging "email not arriving" problems.
  • TXT — free-form text records used for SPF, DKIM, and DMARC email authentication, plus domain-ownership verification strings for services like Google Search Console.
  • NS — identifies the authoritative name servers for the domain; tells you who actually hosts the DNS zone.
  • CNAME — creates an alias from one name to another (e.g. www pointing at the root domain); handy for CDNs and hosted services.
  • SOA — the Start of Authority record: zone serial number, refresh timers, and the administrator contact for the domain's DNS zone.

Step-by-Step: How to Run a DNS Lookup

  1. Enter the domain. Type the domain name (with or without www) into the input box — for example, example.com.
  2. Choose a record type. Select A, AAAA, MX, TXT, NS, CNAME, or SOA from the dropdown depending on what you want to inspect.
  3. Run the lookup. Click the lookup button. The tool queries Google's DoH API and renders the answers within a second or two.
  4. Read the answers table. Each row shows the record type, TTL, and data — everything you need to verify a configuration at a glance.
  5. Inspect the raw JSON (optional). Toggle the raw view to see the exact API response — useful when you are building your own integrations or debugging an edge case.
  6. Copy the results. One click copies the formatted answers for pasting into a support ticket, documentation, or a chat with your developer.

Key Features

  • Live DNS data via Google's Public DNS-over-HTTPS JSON API — fresh answers straight from one of the world's largest resolvers.
  • Seven record types — A, AAAA, MX, TXT, NS, CNAME, and SOA cover the records that matter for websites, email, and verification.
  • Human-readable errors — API status codes are translated into plain English (status 3 means the domain does not exist / NXDOMAIN), so you never stare at a cryptic number.
  • Readable answers table — type, TTL, and data in clean rows instead of a wall of JSON.
  • Raw JSON toggle — see the exact API response when you need the unfiltered truth.
  • One-click copy — grab results for tickets and docs.
  • Zero setup — no API key, no account, no install; free for unlimited lookups.
  • Private and direct — queries go from your browser to Google's resolvers; nothing passes through our servers.

Real-World Use Cases

Website migrations: before and after moving hosts, compare A records to confirm the domain now points at the new server's IP. Pair with our Domain Into IP tool for a quick resolution cross-check and the HTTP Header Checker to verify the server responds correctly.

Email troubleshooting: missing emails are usually an MX, SPF, or DKIM problem rather than a server outage. Look up the MX records to confirm mail routing, then inspect TXT records for SPF and DKIM entries.

Domain research: checking a domain before a purchase or partnership? NS records reveal who hosts its DNS, and the WHOIS Checker reveals who owns it.

Security reviews: verify that SPF, DKIM, and DMARC TXT records are actually published — a missing record is one of the most common email-spoofing gaps.

Developer debugging: when an API or webhook misbehaves, confirm the hostname resolves to the expected IP and that CNAME chains point where the docs say they should. After DNS changes, the SSL Checker confirms certificates still line up.

DNS records are the foundation every website stands on — and every great website needs great hosting beneath it. FistHost shared hosting starts at just $0.99/month, with a FREE domain name included on annual plans, so you can register, point, and publish without breaking a sweat.

Frequently Asked Questions

Is this DNS lookup free? Are there limits?
Yes, it is free and unlimited for interactive use. The tool uses Google's Public DNS-over-HTTPS API, a free public service requiring no API key. Extremely heavy automated use could hit Google's abuse protections, but normal lookups are effectively unlimited.

Do I need an API key or account?
No. The endpoint is open and CORS-enabled, so your browser can query it directly with zero configuration.

What does "NXDOMAIN" mean?
It means the domain name does not exist in DNS — typically a typo, an unregistered domain, or a name whose registration has lapsed. The tool translates the API's status code 3 into this plain-English explanation automatically.

Why do these results differ from my computer's DNS?
Different resolvers can return different answers due to caching, TTL expiry timing, geographic routing, or split-horizon DNS. This tool shows what Google's public resolvers see — an excellent neutral reference point.

What is TTL?
Time To Live — the number of seconds resolvers may cache a record. A TTL of 300 means changes propagate within about five minutes; a TTL of 86400 means up to a day. Lower TTLs ahead of a migration make cutovers faster.

Tips for Accurate DNS Debugging

  • Check MX before blaming the mail server — most "email is down" incidents are DNS misconfigurations, not server outages.
  • Read the TTL before a migration and lower it 24–48 hours ahead of the move so the cutover propagates quickly.
  • Verify TXT records character-for-character — a single missing quote or semicolon breaks SPF and DKIM validation.
  • Use the raw JSON view when a record looks odd; the unfiltered API response sometimes reveals extra sections the table summarizes.

Accurate DNS is only half the battle — your site also needs hosting you can rely on. FistHost delivers exactly that: shared hosting from $0.99/month with a FREE domain on every annual plan. Point your records at FistHost and stay online.

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