Your users' domains are already breaking your onboarding, emails and customer trust.
WarpCheck detects domain, email and security issues before they break your onboarding, emails or customer trust.
Most issues don't throw errors — they fail silently and cost you users.
Most domain and email issues don't fail loudly.
They fail silently — and cost you users, emails and trust.
Users connect domains that look valid — but don't actually work.
Emails fail due to missing SPF or DMARC — without warning.
Blacklisted IPs silently kill deliverability.
Security issues only surface after customer complaints.
These issues don't appear in logs — they show up as lost users, failed emails and support tickets.
WarpCheck detects them before they impact your users or your business.
Built for real-world use cases
From onboarding flows to production monitoring
Email Onboarding
Stop sending emails from domains that will never deliver — before it hurts your reputation.
Domain Validation
Block broken domains before they enter your system — and cause silent failures downstream.
Monitoring & Automation
Detect issues across all your users before they escalate into support tickets.
Security Checks
Catch SSL and reputation issues before they damage trust — and cost you customers.
Full Diagnostics
Get a complete domain health report in a single API call — no fragmented tools needed.
Everything you need in one integration
All signals combined into one actionable result
DNS & Domains
See exactly why a domain will fail — not just how it's configured.
- DNS lookup
- WHOIS
- DNSSEC
Email Intelligence
Know if your emails will actually be delivered.
- SPF analysis
- DMARC validation
- Deliverability insights
Security
Detect risks before they turn into incidents.
- SSL checks
- Security headers
- WAF detection
Reputation
Understand if your domain or IP is damaging your credibility.
- Blacklist intelligence
- Risk scoring
- False positive detection
Full Diagnostics
All signals combined into one actionable result — in a single API call or through the UI.
Built for real-world production environments.
Check if a customer domain will break your system
Detect real issues before your users do — automatically.
curl https://api.warpcheck.com/v1/report/full \
-H "X-API-Key: tw_live_xxx" \
-H "Content-Type: application/json" \
-d '{"target":"client-domain.com"}'{
"ok": true,
"data": {
"target": "client-domain.com",
"score": 82,
"confidence": "high",
"sections": {
"dns": { "status": "ok", "records": 12 },
"spf": { "status": "ok", "mechanism_count": 4 },
"dmarc": { "status": "warning", "policy": "none" },
"ssl": { "status": "ok", "days_remaining": 241 },
"blacklist": { "status": "clean", "risk_score": 0 }
}
},
"meta": {
"request_id": "req_8f3a...",
"execution_time_ms": 1842
}
}Why teams choose WarpCheck
One API instead of multiple fragmented tools
DNS, email, security, blacklist — all in a single integration.
Risk-based results, not just binary outputs
Weighted risk scores instead of simple listed/clean answers.
Built-in false positive detection
Intelligence engine filters unreliable blacklists automatically.
Powered by monitoring-grade infrastructure
Retry, caching and rate control built for production workloads.
Start with tools. Scale to production with API.
API access is included in your plan
No separate billing. No extra setup. Just upgrade and integrate.
Free
Basic access
Pro
5K API requests/mo
Business
25K API requests/mo
MSP
100K API requests/mo
Start small. Scale to production as your platform grows.
API Reference
Start integrating in minutes — no complex setup required.
/v1/dns/lookup/v1/email/analyze/v1/security/ssl/v1/blacklist/ip/v1/report/full50+
Diagnostic checks per report
30+
Blacklist providers monitored
<2s
Average full report time
99.9%
API uptime target
Start detecting issues before they cost you users — in minutes.
Get your API key and start finding problems in minutes.