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VerifyPulse DNS Audit — Domain Email Deliverability Check
x402
VerifyPulse DNS Audit — Domain Email Deliverability Check is a paid API for AI agents from verifypulse-seven.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).
Audits a domain's DNS email configuration (SPF, DMARC, MX) and returns a deliverability health score in real time.
Price / call$0.01
Success—
StatusUnknown
How this service works
VerifyPulse is a high-speed B2B email verification engine. Validate RFC syntax, resolve live DNS MX records, filter 3,800+ disposable domains, and run simulated SMTP handshakes in sub-140ms. Stop bounces before sending.
Output
Returns a JSON object containing a numeric deliverability score (0–100), the audited domain name, the number of SPF DNS lookups consumed out of the allowed 10, and the DMARC policy setting (e.g. 'reject', 'quarantine', 'none').
Example use cases
Pre-send domain deliverability audit
“Before I launch this email campaign, can you check the DNS email setup for acme.com — I need their deliverability score and whether their DMARC policy is set to reject?”
Prospect domain quality screening
“I'm building a B2B outreach list and I want to know if salesforce.com has solid email authentication configured — can you run a DNS audit and tell me their SPF lookup count and DMARC status?”
Detect spoofing risk on partner domain
“Can you check whether hubspot.com has a strict DMARC policy and proper SPF records in place? I want to know if their domain is protected against email spoofing.”
Technical details
Endpoint
GEThttps://verifypulse-seven.vercel.app/v1/x402/dns-audit?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need a fast, structured DNS-level audit of a specific domain's email authentication posture — particularly SPF lookup count and DMARC policy — without needing to validate an individual email address. Prefer this over full email verification endpoints when your goal is domain-level deliverability health scoring for outreach list hygiene, partner vetting, or pre-campaign infrastructure checks.
Side effects
- Invalid or non-existent domain returns an error or zero score
- Domains with no MX records may return incomplete results
- DNS resolution timeouts for slow-responding nameservers
- Malformed domain strings (missing TLD, spaces) cause validation errors
- Private/internal domains that are not publicly resolvable will fail lookup
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"score": 100,
"domain": "openai.com",
"spf_lookups": "3/10",
"dmarc_policy": "reject"
}
}Tags
x402
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