Checks run by HV8
The following table lists all checks HV8 attempts to run in this browser, including implicit and explicit signals. Status values are: PASS, FAIL, UNKNOWN.
| Check | Status | Explanation |
|---|---|---|
| Browser Identity | PENDING | Awaiting check… |
| User Agent String | PENDING | Awaiting check… |
| Hardware Crypto | PENDING | Awaiting check… |
| Monotonic Timer | PENDING | Awaiting check… |
| DOM Security | PENDING | Awaiting check… |
| API Polyfill Guard | PENDING | Awaiting check… |
| Loop Monotonicity | PENDING | Awaiting check… |
| Background Throttling | PENDING | Awaiting check… |
| Entropy Verification | PENDING | Awaiting check… |
| Replay Mitigation | PENDING | Awaiting check… |
| Hardware Clock Linearity | PENDING | Awaiting check… |
| Clock Desync Monitor | PENDING | Awaiting check… |
| DOM Tree Integrity | PENDING | Awaiting check… |
| Paint Timing Analysis | PENDING | Awaiting check… |
| Script Injection Shield | PENDING | Awaiting check… |
| JS Engine Profile | PENDING | Awaiting check… |
| Sandbox Isolation | PENDING | Awaiting check… |
| Virtualization Scanner | PENDING | Awaiting check… |
| RDP Frame Tracker | PENDING | Awaiting check… |
| NoScript Execution Block | PENDING | Awaiting check… |
| Canvas Protection Monitor | PENDING | Awaiting check… |
| WebGL Layer Validation | PENDING | Awaiting check… |
| CAPTCHA Presence | PENDING | Awaiting check… |
| CAPTCHA Interference Check | PENDING | Awaiting check… |
| CAPTCHA Compatibility | PENDING | Awaiting check… |
| Contextual Query Guard | PENDING | Awaiting check… |
| Malformed Input Filter | PENDING | Awaiting check… |
Troubleshooting by check
If a check shows FAIL or UNKNOWN, you can use the guidance below to understand what might be happening and what (if anything) you want to change.
Browser Identity / User Agent String (UNKNOWN)
What it means: Your browser is hiding or stripping identifying information.
Possible causes: hardened privacy settings, extensions that spoof UA, corporate proxies.
Suggested steps: If you want more accurate diagnostics, temporarily disable UA spoofing extensions or custom headers. If you prefer privacy, you can leave this as-is—HV8 should not punish you for it.
Canvas Protection Monitor (FAIL)
What it means: Your browser appears to add noise or masking to canvas operations.
Possible causes: anti-fingerprinting extensions, Tor-like environments, privacy-respecting browsers.
Suggested steps: If a site denies access or forces CAPTCHA because of this, report it below. You may optionally whitelist this site in your privacy tools if you trust it.
CAPTCHA Presence (FAIL)
What it means: No CAPTCHA resources are detected, but some flows may still try to fall back to CAPTCHA.
Possible causes: Misconfigured integration, legacy fallback logic, or abusive challenge policies.
Suggested steps: If you are forced to solve CAPTCHA because HV8 "failed", treat that as an abusive fallback and submit a report with details (URL, time, and what you were trying to do).
Paint Timing Analysis / Sandbox Isolation / RDP Frame Tracker (UNKNOWN)
What it means: Some advanced signals cannot be measured reliably in your environment.
Possible causes: browser limitations, OS-level restrictions, virtualization, or remote desktop setups.
Suggested steps: This is usually fine. Only report issues if these UNKNOWN states are being used to justify blocking you or forcing CAPTCHA.
General PASS checks
What it means: Core timing, crypto, DOM integrity, and engine checks look healthy.
Suggested steps: No action needed. If you are still being challenged aggressively, include this dashboard screenshot in your report to show that your environment is normal.
HV8 Verification Response
The raw JSON response returned by Humane Verification v8 after running its checks:
Report abusive fallbacks or HV8 misbehavior
Use this form to report situations where HV8 failure leads to abusive fallbacks, such as traditional CAPTCHA, hostile challenges, or denial of access. The report is protected by Cloudflare Turnstile and can be downloaded as a PDF for your records.