AltF DomainOps

TXT record lookup with every record explained

A TXT lookup returns the free-text records at a name. DomainOps labels each one it recognises (SPF, Google Search Console, Microsoft 365, Meta, Apple, Atlassian, Stripe, OpenAI and more), so you can confirm a new verification record is live and spot old ones from services you no longer use.

  • Free, no sign-up
  • Real DNS, RDAP and TLS data
  • Raw records shown
  • No affiliate links
Check a domain

Confirming a verification record

  • Add the record exactly as the service shows it, at the host it names (often @ for the bare domain).
  • Look it up here. If it does not appear, check you edited DNS at the provider listed in the NS lookup.
  • Long values may be split into several quoted strings; DomainOps joins them back together.
  • Click verify in the service only after the record shows here; resolvers cache misses too.

Clean-up

Verification records are harmless but they reveal which services an organisation uses. Remove ones for services you have left, and never publish two SPF records: merge them into one.

TXT record lookup: questions and answers

Where do I check a _dmarc or DKIM TXT record?

Type the full name: _dmarc.example.com for DMARC, or selector._domainkey.example.com for DKIM. The Email DNS tab reads both automatically.

Why is my TXT record not showing?

The usual causes are editing DNS at the wrong provider, adding the domain name twice in the host field (example.com.example.com), or a cached negative answer that lasts as long as the zone's SOA minimum TTL.

Focused checks and guides

Checks

Full domain health checkAll nine tools, the record glossary and how each check works.DNS lookupFree DNS lookup for A, AAAA, CNAME, MX, NS, TXT, SOA, CAA, SRV, DS, DNSKEY and HTTPS records, with TTLs, DNSSEC status and what each record means.MX lookupFree MX record lookup: see a domain's mail servers in priority order, which email provider runs them, and whether SPF and DMARC are set.NS lookupFree nameserver lookup: see which nameservers answer for a domain, who the DNS host is, the SOA serial, and whether the zone is DNSSEC-signed.SSL certificate checkFree live SSL checker: connect to any site and see its certificate issuer, expiry date and days left, covered hostnames, chain trust and TLS version.Domain expiry checkCheck when a domain expires from the registry's own RDAP data: expiry date, days left, registrar, transfer lock and status codes in plain English.Reverse DNS lookupFree reverse DNS lookup for IPv4 and IPv6: find the PTR hostname of an IP address and the network owner from the regional internet registry.DNSSEC checkCheck whether a domain uses DNSSEC: DS record at the registry, DNSKEY in the zone and whether public resolvers validate the answers.CAA record checkLook up a domain's CAA records to see which certificate authorities may issue certificates, including wildcard and reporting rules, with fixes.

Guides

Domain launch checklistA 20-point checklist to launch a new domain: DNS records, www, HTTPS, email authentication, DNSSEC, CAA, registrar lock, with a free check for each step.Website migration DNS checklistMove a website or DNS to a new host without downtime: lower TTLs, copy records, switch nameservers, watch resolvers, handle DNSSEC and email.Email domain setup guideSet up email for your domain the right way: MX records, one SPF record under 10 lookups, DKIM keys, a DMARC rollout plan, MTA-STS and BIMI.

25 more free domain and DNS tools

Single-purpose AltFTool tools for one job each, grouped by what you are trying to do.

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One question, one answer.

Write records

Generate correct records before you paste them into your DNS host.

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Go deeper than the live certificate check.

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AltFTool does not store the domains or addresses you check. DNS lookups in the DNS, compare, email and IP tools run from your browser; registration, report and certificate checks pass through AltFTool's server and keep nothing.