Free SPF Checker: Look Up Your Live DNS Record Instantly

Enter your domain and we pull your published SPF record straight from DNS, no copy-pasting required, and confirm it's valid and correctly published.

Free with a Brainito account. No credit card required.

Live DNS Lookup

Fetches your SPF record directly from DNS so you see exactly what mail servers see, right now.

No Copy-Pasting

Just enter your domain. No need to dig up your SPF record from your DNS provider first.

Published or Missing, Instantly

Know right away whether a record exists at all, which is often the first thing that silently breaks.

An SPF checker looks up the SPF record on your domain and confirms it correctly lists the servers allowed to send mail as you. A missing, broken, or overly permissive SPF record lets your messages fail authentication or lets others spoof your domain. This free tool retrieves your record, validates its syntax, counts DNS lookups, and flags problems, so you can fix your SPF setup and keep your email authenticated.

What the SPF checker verifies

The checker retrieves the SPF TXT record published for your domain and parses each mechanism it contains. It confirms the record exists, is a single valid SPF entry, and correctly declares which hosts, IP ranges, and include statements are authorized to send on your behalf. It counts the DNS lookups the record triggers, since SPF fails if it exceeds the ten-lookup limit that receivers enforce. It also checks your closing policy, such as a soft or hard fail, which tells receivers how to treat mail from unlisted sources. The result shows whether your legitimate senders are covered and whether the record is clean, so unauthenticated mail does not slip through or get rejected.

How to read results and fix SPF

If no record exists, publish a single SPF TXT record that lists every service that sends mail for you, such as your email platform, marketing tool, and any transactional providers. If the checker reports too many DNS lookups, consolidate includes, remove unused senders, or use flattening so you stay under the ten-lookup limit. Make sure you have only one SPF record, since multiple records invalidate SPF entirely. Choose a fail policy that fits your enforcement plan, typically a soft fail while testing and a hard fail once you are confident all senders are covered. After any change, re-run the checker and send a test to confirm SPF passes before relying on it.

Why SPF matters for deliverability

SPF is a foundational part of email authentication, and receivers check it to decide whether mail claiming to be from your domain is legitimate. A correct record lets your real senders pass and helps block spammers from forging your address, which protects both your reputation and your recipients. A broken or missing record can cause your own messages to fail authentication and land in spam, while an over-permissive one weakens the protection SPF is meant to provide. Because SPF also underpins DMARC alignment, getting it right strengthens your whole authentication stack. Checking your SPF record regularly ensures a new sending tool or DNS edit never quietly breaks how your mail is verified.

Frequently Asked Questions

How is this different from the SPF Record Checker?

This tool looks up your domain's SPF record live from DNS for you. The SPF Record Checker is for when you already have a record copied and want a deeper syntax and DNS-lookup-limit audit.

What do I need to run this check?

Just your domain. The checker queries DNS directly and reports whether an SPF record is published and correctly formatted.

Is the SPF Checker free to use?

Yes, it's free after creating a Brainito account. Recheck it whenever you change email providers or DNS settings, since those are the moments SPF most often breaks without anyone noticing.

Free Checker

Check your live SPF record in seconds

One account unlocks spf checker plus 340+ marketing tools, weekly audits, and your action plan.

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