Email authentication

xn----7sbd7ceg4a.xn--p1ai SPF validation

Cached SPF record analysis for this domain.

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SPF validation

Record found

Valid SPF record

Query name

xn----7sbd7ceg4a.xn--p1ai

Terminal all

DNS lookup count

SPF record count

SPF record

v=spf1 ip4:31.31.198.9 a mx include:_spf.hosting.reg.ru ~all

Mechanisms

+ip4:31.31.198.9+a+mx+include:_spf.hosting.reg.ru~all

Recommendations

softfail (~all) is common during rollout; tighten to -all once includes are verifiedpair with DMARC Analyzer and DKIM Validator before tightening mail authentication enforcement

Tool switcher

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Same target (xn----7sbd7ceg4a.xn--p1ai) — open the next tool without retyping.

Email Auth CheckerSame targetRun SPF, DMARC, and DKIM checks in one auditxn----7sbd7ceg4a.xn--p1aiOpen
DMARC AnalyzerSame targetDMARC policy, alignment and reporting checksxn----7sbd7ceg4a.xn--p1aiOpen
DKIM ValidatorSame targetDKIM selector lookup and record validationxn----7sbd7ceg4a.xn--p1aiOpen
DNS CheckerSame targetAll major record types in one passxn----7sbd7ceg4a.xn--p1aiOpen
DIGSame targetOne record type, resolver-style answerxn----7sbd7ceg4a.xn--p1aiOpen
Domain IP LookupSame targetA and AAAA IP addresses for a domainxn----7sbd7ceg4a.xn--p1aiOpen
Domain Age CheckerSame targetCreation date, age, registrar and expiryxn----7sbd7ceg4a.xn--p1aiOpen
WHOISSame targetRegistrar, expiry and domain statusxn----7sbd7ceg4a.xn--p1aiOpen
HTTP Header CheckerSame targetResponse headers, redirects and cachingxn----7sbd7ceg4a.xn--p1aiOpen
HTTP/2 TesterSame targetHTTP/2 support, ALPN and TLS negotiationxn----7sbd7ceg4a.xn--p1aiOpen
SSL Certificate CheckerSame targetCertificate chain, SAN and TLS versionxn----7sbd7ceg4a.xn--p1aiOpen
CAA Record CheckerSame targetCheck CAA DNS records, authorized CAs, issuewild and iodefxn----7sbd7ceg4a.xn--p1aiOpen
Blacklist CheckerSame targetDNSBL reputation for IP and domainxn----7sbd7ceg4a.xn--p1aiOpen
Punycode ConverterSame targetUnicode ↔ Punycode for IDN domainsxn----7sbd7ceg4a.xn--p1aiOpen
URL SplitterSame targetBreak a URL into parts and query paramshttps://xn----7sbd7ceg4a.xn--p1ai/Open
Base64 CodecEncode and decode Base64 textOpen
Password GeneratorStrong random passwords for ops workOpen
Password Strength CheckerEntropy, crack time and password suggestionsOpen
Passphrase GeneratorMemorable random word phrases for safer sharing testsOpen
BIN CheckerCard brand, bank and country from BIN/IINOpen
IP CalculatorSubnet math for IPv4 and IPv6 CIDROpen
Browser Update CheckerBrowser version, update status and Client HintsOpen

Full tool catalog →

Guides

Practical guides for common SPF Validator tasks — DNS records, troubleshooting steps, and links to our free tools.

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SPF TXT record basics at the domain apex. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
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Include mechanisms and third-party senders
Include mechanisms and third-party senders. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
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Terminal all qualifiers: pass, fail, softfail, neutral. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
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SPF DNS lookup limit and flattening
SPF DNS lookup limit and flattening. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
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SPF alignment with DMARC enforcement
SPF alignment with DMARC enforcement. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
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Shareable SPF validator result pages
Shareable SPF validator result pages. SPF authorizes mail senders through a single v=spf1 TXT record published at the domain apex, not at _dmarc or DKIM selectors. DN01 returns parsed mechanisms, lookup estimates, warnings, and a shareable result URL for the same domain after DNS changes.
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SPF validation

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Related articles

SPF TXT record basics at the domain apex

Include mechanisms and third-party senders

Terminal all qualifiers: pass, fail, softfail, neutral

SPF DNS lookup limit and flattening

SPF alignment with DMARC enforcement

Shareable SPF validator result pages