Which WAF is in front
Cloud WAF, CDN-bundled WAF or appliance: identified from response signatures and challenge behavior.
WAF DetectorFREE
WAF Detector.
WAF Detector.
What’s guarding the front door?
Detect which WAF or security edge is protecting a site, how it behaves toward ordinary traffic, and what that choice implies for performance, from passive fingerprints only: no attack traffic, no exploit probes, nothing a production site would ever notice.
AT A GLANCE
Livepart of the first waveFreeno signup requiredPassivefingerprinting onlyWAFedges & CDN WAFs coveredShareableevidence-backed reportsLiveand free to run
Part of the CDN World toolkit · live and free to run
Screening example.com
- Response signature analysis
- Challenge-behavior observation
- Benign-request variation
- Signature library
GET /200?id=1' OR 1=1403 blockedPOST /login200
A WAF is one layer of defense. A free assessment reviews your whole security and delivery posture.
The report
What you’ll get.
THE OUTPUTInside the report
Detected security edgeIncluded
The product or service in front, with confidence scoring.
Observed behaviorsIncluded
Challenges, cookies and header rewrites seen during detection.
Performance notesIncluded
What the detected stack typically means for latency and caching.
Shareable reportIncluded
Evidence included, ready for a security review thread.
Freeto use, forever
No signuprequired to run it
Shareableevidence-backed reports
Live nowand free to run
What it answers
WAF Detector in four questions.
Its posture toward normal traffic
How the edge treats ordinary requests: challenges, cookies, header rewrites, and what that costs in latency.
The evidence
Every fingerprint that fired, so a security team can verify the identification independently.
The performance implication
Security layers are delivery layers; the report notes what the detected stack typically adds to response times.
Under the hood
How it works.
A transparent look at exactly what the tool checks, and how it reaches its answer.
DETECTIONHow it works
- 01Core
Response signature analysis
· headers & error pagesWAF products leave consistent fingerprints in headers, cookies and block-page markup; we match them against a maintained library.
- 02Core
Challenge-behavior observation
· passive onlyHow the edge issues JavaScript or interstitial challenges to a plain browser-like request identifies families of products.
- 03Principle
Benign-request variation
· no attack trafficOnly ordinary, harmless request variations are used, the tool never sends exploit payloads or malformed traffic.
- 04Supporting
Signature library
· 20+ WAF productsHeader, cookie and server fingerprints are matched against a maintained library covering the major WAF vendors.
Use cases
Who it’s for.
Security due diligence
Know what actually protects a property you’re acquiring, auditing or integrating with.
Vendor verification
Confirm the WAF you pay for is the WAF that answers, misrouted zones are more common than anyone admits.
Consolidation planning
Mapping WAFs across an estate is step one of collapsing three security vendors into one.
Market research
See which security edges your market actually deploys, not which ones sponsor conferences.
Status & early access
Free to use. Live now, free to run.
STATUSWhere the build stands
FREEFreeto use, no signup
Liveand free to run
200+assessments/yr behind the data
Liveand free to run
- Built on assessment data
The toolkit automates the detection and benchmark data behind the assessments we already run, the tools are how we prove the data is good.
- Free, no signup, shareable
Every tool ships free with shareable reports; the business model is the advisory behind it, not your email address.
- Available now
Live now and free to run, refined as we expand coverage.
LIVE NOWRun a lookup →
Want a human read on the result? A free assessment runs the same analysis, human-graded, usually within 24 hours, and gives you a benchmark against pooled volume pricing.
Live now · free to run, no signup
Keep reading
WAF Detector in context.
The research this tool automates.
More free CDN World tools
All part of the same toolkit — passive, non-intrusive, no signup.
CDN Finder FreeSee which CDN (or stack) serves any site→DNS Finder FreeIdentify the DNS provider and audit records→HTTP Header Analyzer FreeGrade security headers and inspect caching→TLS & Cache Checker FreeInspect TLS config and cache behavior→Bot Detection FreeDetect the bot-management / anti-bot vendor→
Want the full picture?
Get a free infrastructure assessment ↗A free assessment reviews your whole delivery and security posture, human-graded.
FAQWAF Detector questions,
WAF Detector questions,
answered straight.
Is WAF Detector live?
It’s live and free to run — no signup.
Is this a security scanner?
No, and deliberately so. It sends only ordinary, benign requests and identifies the protection layer from passive fingerprints. It never sends attack payloads, probes for vulnerabilities, or does anything a production site would register as hostile.
Which products can it identify?
The launch library targets the WAFs and WAF edges we meet most in assessments, the major CDN-bundled WAFs and standalone cloud products, and it will grow the way our CDN signature library did.
Can a WAF hide from it?
Some deployments mask well, and the report says so honestly: a low-confidence result with the evidence shown beats a confident guess.
Why does a CDN advisory build a WAF tool?
Because on modern stacks the WAF and CDN are one buying decision, you can’t advise on delivery without seeing the security layer in front of it.
I need this answered today.
A security-focused assessment covers WAF identification and posture, human-graded.