OK
reachable
You:
Bot 100.0%
Low
Censys Inspect about.censys.io
Bot
SearchEngine
Policy:
rate-limit-search
Probability
91 %
Confidence
92 %
Risk Profile
VeryHigh
Threat
None
Hit Count
2
Last Seen
51s ago
Analysis
Censys Inspect about.censys.io on / - caught by Well-known bot: censys-inspect, Request patterns appear normal, IP appears normal: 66.132.172.xxx
Detection Signals
- ↑ Heuristic model (late): 96 % bot likelihood (288 features) 2.32
- ↑ Well-known bot: censys-inspect 1.35
- ↑ Heuristic model (early): 68 % bot likelihood (18 features) 0.70
- ↓ IP appears normal: 66.132.172.xxx 0.15
- ↓ Headers appear normal 0.15
- ↓ Request patterns appear normal 0.15
Drifted
Generic Adblocker
→
uBlock Origin
Drift vs
56.5%
Fingerprint Profile
TLS Version
Unavailable
HTTP Protocol
HTTP/1.1
Protocol Client
Unavailable
TCP OS Hint
Unavailable
Fingerprint Integrity
Suspect
UA Consistency
Flagged
Headless Indicator
Low
Datacenter IP
Clean
Browser modes same browser, different modes. One row per persisted mode
| Mode | Observations | Maturity | Shift from baseline | Last seen |
|---|---|---|---|---|
| bot-raw | 9005 | 9005 | 0.04 (ua family, header case pattern, referer host family) | 08:38:29 |
| signalr-negotiate | 167 | 167 | 0.39 (ua family, header order hash, referer host family) | 06:32:37 |
| sub-resource | 717 | 717 | 0.40 (ua family, header case pattern, referer host family) | 06:32:29 |
| websocket-upgrade | 10 | 10 | 0.40 (x requested with, header case pattern, header order hash) | 20:32:09 |
| navigation | 14 | 14 | 0.46 (custom header signature, upgrade insecure requests, header order hash) | 12:11:32 |
5 modes across 9913 observations. See composite browser-mode fingerprints.
Endpoints Visited (1) Click to expand · stats unavailable
| # | Path |
|---|---|
| 1 | / |
Raw Requests (2) Click to expand
| Time | Method | Path | Status | Prob | Conf | Risk Profile | Action | Time |
|---|---|---|---|---|---|---|---|---|
| 03:49:09 | GET | / | 200 | 100 % | 50 % | VeryHigh | rate-limit-search | 94.4ms |
| 14:47:11 | GET | / | 400 | 100 % | 50 % | VeryHigh | Silent Throttle | 219.4ms |
Bot Probability & Confidence History
StyloBot Detection Overhead (ms)
User Agent
Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/)
Detector Contributions (18 detectors)
| Detector | Confidence Delta | Timing (ms) |
|---|---|---|
|
HeuristicLate
Heuristic model (late): 96 % bot likelihood (288 features)
|
+0.928 | 0.4 |
|
UserAgent
Well-known bot: censys-inspect
|
+0.900 | 0.6 |
|
Heuristic
Heuristic model (early): 68 % bot likelihood (18 features)
|
+0.352 | 0.1 |
|
Ip
IP appears normal: 66.132.172.xxx
|
-0.150 | 1.9 |
|
Header
Headers appear normal
|
-0.150 | 0.0 |
|
Behavioral
Request patterns appear normal
|
-0.150 | 0.2 |
|
TcpIpFingerprint
Missing connection reuse header (unusual for real browsers)
|
+0.200 | 0.0 |
|
VerifiedBot
rDNS mismatch: UA claims about.censys.io but rDNS is 138.172.132.66.censys-scanner.com
|
+0.250 | 80.5 |
|
Http2Fingerprint
Using HTTP/1.1 instead of HTTP/2 (HTTP/2 rate: 0 % over 10 samples)
|
+0.050 | 0.0 |
|
TlsFingerprint
Using HTTP instead of HTTPS (uncommon for modern browsers)
|
+0.050 | 0.0 |
|
AI
AI analysis: borderline case, monitoring
|
+0.000 | 10.3 |
|
AiScraper
No AI scraper signals detected
|
+0.000 | 0.3 |
|
SecurityTool
No security tools detected in User-Agent
|
+0.000 | 0.0 |
|
RequestHydrator
Request signals hydrated to sink
|
+0.000 | 0.0 |
|
Http3Fingerprint
Connection uses HTTP/1.1 (not HTTP/3)
|
+0.000 | 0.0 |
|
HeaderCorrelation
Single signature per header profile
|
+0.000 | 0.0 |
|
TransportProtocol
Transport protocol analysis complete
|
+0.000 | 0.0 |
|
FastPathReputation
No known patterns in reputation cache
|
+0.000 | 0.0 |
Signal Intelligence
request
protocol
HTTP/1.1
accept_encoding
gzip
risk
justification
Classified Unknown (probability 1.00, confidence 0.50)
friendly_pin_trace
not-applicable:botType=Unknown,yamlType=null,botName=Censys Inspect about.censys.io
Policy applied
Hit history
No sessions recorded yet.
Sessions are created when a visitor's activity gap exceeds 30 minutes.
Effective policy
Loading effective policy…
ASP.NET Pack — Auth health
JWKS reachable
Licensed
ASP.NET pack enabled
OTel Mesh — Traces
Fingerprint timeline
32bb80482ffb48089559f74451ecff49
0 observations
Span + log activity for this fingerprint, ordered by timestamp.
No timeline observations
OTel Mesh receiver online, but no observations seen for this fingerprint id (check W3C baggage propagation)
Operator actions
Operator actions
Block/Allow writes a scoped policy rule for this fingerprint — a policy action, applied via the live policy pipe. It is never a skip-detection bypass.
Signature:
R3PPBI7VkPi_JGKYWyqmIw
|
Processing: 94ms
|
Country: US
|
UA: Mozilla/5.0 (compatible; CensysInspect/1.1; +https://about.censys.io/)
|
First seen: 2026-07-24 14:47:11 UTC