Http Probe Blocked

Http Probe Blocked: what it means, why it may matter, and how to remediate with external verification using ExposureGrid.

The problem

Http Probe Blocked: Scans may be blocked, partial, or inconclusive - a coverage limitation is not the same as a clean bill of health.

Why it matters

False reassurance is harmful; rerun or widen verified coverage before assuming posture.

How to check

Retry scans, validate network blocks, supply route lists where scanners support options, attach verified domains for deeper analysis.

How to fix

Ensure edges allow scanners as policy permits; fix connectivity; treat partial results as unanswered questions.

  1. Identify owners for the affected component (app, edge, DNS, or mail).
  2. Make a minimal change and validate in staging or a canary route.
  3. Deploy with monitoring and rollback readiness.
  4. Re-run ExposureGrid to confirm the external signal improved.

Run a scan to verify this fix on your domain

Use the same public scanner as the homepage — results honor your plan tier.

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What ExposureGrid checks

ExposureGrid records probe failures and partial coverage explicitly when observed.

FAQ

Why does "Http Probe Blocked" appear in ExposureGrid?
Scanners observe externally visible signals. A finding means our rules matched - validate severity and applicability in your environment.
Could this be a false positive?
Yes, depending on context and coverage limits. Especially for heuristic, partial, or pattern-based checks, corroborate with manual review.
What should I do after changing configuration?
Re-run a scan to confirm the external signal changed, then enable monitoring where your plan supports it.

ExposureGrid continuously monitors these issues and alerts you before they become exploitable.

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