subdomain_takeover_check
shallownet.fmelo/cognita · Verify this server
Check a domain's subdomains (enumerated from Certificate Transparency) for dangling-CNAME takeover risk: a CNAME that delegates to a third-party service (GitHub Pages, S3, Heroku, Azure, Netlify, …) which no longer claims the name. Status is 'vulnerable' (the service's unclaimed-page fingerprint was seen), 'dangling' (CNAME to the service but the name no longer resolves), or 'potential' (still resolves, unconfirmed). DNS-first; an HTTP GET runs only for CNAME matches, to confirm the fingerprint.
1 trials · measured 2 days ago
subdomain_takeover_check scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against net.fmelo/cognita, measured 20 Oct 2026 under methodology v0.2.0. Every measured component scored 100.
Component breakdown
| Component | Weight | Value |
|---|---|---|
| Reliability | 35% | not applicable |
| Schema integrity | 25% | 100.0 |
| Failure behaviour | 15% | not applicable |
| Latency | 15% | not applicable |
| Concurrency | 10% | not applicable |
Tool details
- Transport
- remote
- Credential class
- self-provisionable
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-10-20 | 100.0 | shallow | v0.2.0 |
Probe evidence
| Probe | Outcomes |
|---|---|
| schema_integrity | pass: 1 |
Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.
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[](https://vouch.tools/tools/18561983-6e8d-4441-8f63-1ebc3f3bf601)