Defaults.Exposed › September 2026 census › v10 registry › OCSP stapling
OCSP stapling
Methodology v10 · canonical ID ocsp-stapling · TLS & Certificates · informational · census as of September 5, 2026
Faster, more private certificate-revocation checks.
Definition
| Canonical ID | ocsp-stapling |
|---|---|
| Category | TLS & Certificates |
| Grade impact | Informational, never moves the grade |
| Pass | The server staples a current OCSP response into the TLS handshake. |
| Fail | No OCSP response is stapled (clients must query the CA themselves). |
| Example (passing) | OCSP response: stapled, status good |
No-data rule: when this check couldn't be determined for a domain (timeout, SERVFAIL, redacted source) it returns N/A and is excluded from that domain's scoring denominator: "couldn't determine" is never counted as a failure. "Determined absent" is a real fail.
Prevalence across the census
The public census rollup does not publish a per-check figure for ocsp-stapling (as of September 5, 2026).
Whole-census aggregates live at /v10/data; no number is shown here rather than an estimated one.
Census denominator: 316,600,902 graded domains. Aggregates only: never an individual domain's result.
Fix it
Plain-English impact, cost of ignoring it, and step-by-step remediation: defaults.exposed/fix/tls
Cite this check
Defaults.Exposed, "OCSP stapling (ocsp-stapling)", Grading Methodology v10 (census as of September 5, 2026). https://defaults.exposed/v10/methodology/ocsp-stapling
Permalink: https://defaults.exposed/v10/methodology/ocsp-stapling ·
All 34 checks: v10 registry ·
Machine-readable: /v10/methodology/checks.json ·
Licence: open data