SPF record checker
SPF (Sender Policy Framework) tells mailbox providers which servers may send email for your domain. A broken SPF record is one of the fastest ways to lose inbox placement.
Checker output
SPF
v=spf1 include:_spf.cloudjet.uk ~all
At a glance
Plain-language summary for buyers, operators, and search engines.
In simple terms
An SPF checker reads your domain’s DNS TXT records and validates whether authorized senders are declared correctly.
Why it matters
SPF failures cause authentication misalignment, spam folder placement, and bounces before your campaign even starts.
How CloudJet handles it
Enter your domain, review the SPF record, lookup count, and includes—then fix DNS before sending at scale.
Run the Spf Checker
See the actual published DNS records, validation results, and suggested fixes — free, no signup.
Live checker
Queries public DNS — shows the actual published records and any issues found.
Enter a domain to see the published DNS record, validation results, and suggested fixes.
Real DNS lookups
We query public DNS and show the exact TXT/MX records published for your domain.
Records + issues
Each check shows the live record, what passed, what failed, and how to fix it.
Go deeper in CloudJet
Sign up to save history, monitor domains, and automate remediation.
How to use this checker
01
Enter your domain above and click Run check for a live DNS lookup — free, no account required.
02
Sign up for CloudJet to save history, monitor changes, and automate remediation across your sending domains.
What an SPF check validates
01
SPF is published as a DNS TXT record starting with v=spf1. It lists IP addresses and include mechanisms that authorize sending servers.
02
Common SPF problems include: too many DNS lookups (limit of 10), syntax errors, stale includes after a provider migration, and ~all vs -all policy mistakes.
SPF issues that cause deliverability problems
Hard fail when legitimate mail sends from an unlisted server.
Soft fail or neutral policy when receivers expect strict alignment.
Nested include chains that exceed DNS lookup limits.
Missing SPF entirely on a domain that sends commercial mail.
Related pages
Continue exploring capabilities that connect to this topic.
Questions & answers
How to run this check, read results, and pair with CloudJet monitoring.
Look up the TXT record on your root domain (and sometimes subdomains). A valid record starts with v=spf1 and lists authorized mechanisms. Use CloudJet’s checker or DNS tools to validate syntax and lookup count.
No. SPF is one pillar of authentication. DKIM and DMARC alignment, list quality, engagement, and reputation all affect placement.
Each include, a, mx, ptr, and exists mechanism triggers DNS lookups. More than 10 lookups invalidates the SPF record per RFC 7208.
Monitor these checks in CloudJet
Free checks run on this page. Sign up for saved history, alerts, and continuous domain monitoring.