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ipv4.fr Domain Audit API
x402
ipv4.fr Domain Audit API is a paid API for AI agents from ipv4.fr, paid per call via x402, $0.05/call, status unknown (last checked 2026-10-29).
Performs a comprehensive security audit of a domain, checking DNS, TLS/SSL, HTTPS, email configuration (DMARC/SPF), and blacklists, then returns a graded report with actionable findings.
Price / call$0.05
Success—
StatusUnknown
How this service works
Fast, reliable network tools API. IP geolocation, DNS lookup, SSL check, WHOIS, email validation, port scan. Free tier available.
Output
A JSON report containing: a letter grade (e.g. 'C') and numeric score (0-100), a plain-English summary, a list of findings with severity, category, detail, and specific fix instructions, a list of strengths, plus raw check results for DNS, TLS, HTTPS, email, and blacklists. Indicates whether the result was served from cache.
Example use cases
Pre-launch domain security check
“Before we go live, can you audit the domain mycompany.com and tell me if there are any critical security issues — especially around email spoofing protection and TLS?”
Investigating email deliverability problems
“Our emails from newsletter.acme.com keep landing in spam — can you audit that domain and see if DMARC, SPF, or blacklist issues are the cause?”
Security compliance review for client domain
“I need a security grade report for clientsite.io — check their DNS, TLS certificate, HTTPS configuration, and whether they're on any blacklists, and give me a summary of what needs fixing.”
Technical details
Endpoint
GEThttps://ipv4.fr/x402/v1/audit/%7Bdomain%7D?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a holistic, graded security audit of a domain in a single call — covering DNS, TLS, email security (DMARC/SPF), HTTPS/HSTS, and blacklists simultaneously. Prefer it over individual point-checks when you need an actionable remediation report with severity-ranked findings rather than raw record lookups.
Side effects
- Invalid or non-existent domain returns error or empty check results
- Network timeout if domain DNS is unresponsive
- Blacklist check may be partial if external blacklist providers are unavailable
- Cached results may not reflect very recent domain changes
- Payment failure if USDC balance is insufficient for the $0.05 per-call fee
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"cached": false,
"checks": {
"dns": {},
"tls": {},
"email": {},
"https": {},
"blacklists": [],
"registration": {}
},
"domain": "example.com",
"report": {
"grade": "C",
"score": 72,
"summary": "Valid TLS but no DMARC and missing HSTS.",
"findings": [
{
"fix": "_dmarc.example.com TXT \"v=DMARC1; p=quarantine; rua=mailto:dmarc@example.com\"",
"title": "No DMARC record",
"detail": "Anyone can spoof mail from this domain.",
"category": "email",
"severity": "high"
}
],
"strengths": [
"Valid TLS certificate"
]
}
}
}Tags
x402
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