Overview
Findings
Actions
Details
Related
AI-Generated Summary
What this means
clevelandclinic.org scored 85/100, demonstrating a strong security posture. Minor improvements are noted below.
Positive signals: TLS Configuration, DNS Configuration, DMARC / Email Security all passed.
3 action items identified, including 0 critical. The issues are configuration gaps, not architectural problems. A focused remediation effort of 2–5 days could address all findings.
How clevelandclinic.org compares
Grade distribution across 2598 companies we've scanned. clevelandclinic.org scores better than 78% of them.
83
A+
25
A
190
A-
196
B+
75
B
362
B-
129
C+
114
C
330
C-
119
D+
95
D
252
D-
628
F
clevelandclinic.org — Grade B (85/100)
2598 companies scanned
Security checks
Each check inspects a different part of clevelandclinic.org's public security setup. Green means healthy, yellow needs attention, red is a problem.
HSTS Header
HSTS present but max-age is low (15552000s). Recommended minimum: 15768000 (6 months).
Security Headers
3/5 security headers present. Missing: Referrer-Policy, Permissions-Policy.
Certificate Hygiene
Strengths: Issued by Sectigo Limited. Issues: Certificate expires in 27 days — renewal recommended.
TLS Configuration
TLSv1.3 negotiated with TLS_AES_256_GCM_SHA384 (256-bit). Strong configuration with no deprecated protocols or weak ciphers detected.
DNS Configuration
Strengths: 2 nameservers configured (etta.ns.cloudflare.com., bob.ns.cloudflare.com.); 2 MX records present; DNSSEC enabled; Zone transfers properly restricted.
DMARC / Email Security
Strengths: DMARC policy set to reject (strongest); SPF record present with soft-fail (~all); DKIM configured (selectors: selector1).
Known Breaches
No known breaches found in public disclosure databases.
CVE Exposure
Detected technologies: cloudflare. (cloudflare detected but excluded from CVE matching — upstream infrastructure). All detected technologies are upstream CDN/proxy infrastructure. No application-level software versions exposed.
Recommended actions
3 items
Steps to improve clevelandclinic.org's security grade, ranked by impact.
1
Increase HSTS max-age duration
HSTS is enabled but the max-age (0s) is below the recommended minimum of 15768000s (6 months). A short max-age means browsers forget the HTTPS-only policy quickly, reducing protection between visits.
Compliance impact
PCI-DSS 4.0Req 6.4.1
Application security header configuration
How to fix this
1
Update header: Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
2
Verify: curl -sI https://clevelandclinic.org | grep -i strict
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2
Review certificate configuration — expires in 27 days
Certificate issues found for clevelandclinic.org: certificate expires in 27 days. Ensure auto-renewal is configured to prevent expiry. These are operational hygiene items, not immediate security risks.
How to fix this
1
Verify auto-renewal is configured (Let's Encrypt: certbot renew --dry-run)
2
Consolidate certificate issuance to 1–2 trusted CAs
3
Add optional security headers (Referrer-Policy, Permissions-Policy)
clevelandclinic.org has most security headers configured. Missing: Referrer-Policy, Permissions-Policy. These are best-practice additions that reduce the attack surface for client-side vulnerabilities.
How to fix this
1
Add: Referrer-Policy: strict-origin-when-cross-origin
2
Add: Permissions-Policy: camera=(), microphone=(), geolocation=()
3
Verify with: curl -sI https://clevelandclinic.org | grep -iE 'content-security|x-frame|x-content|referrer|permissions'
At a glance
Key data points from the scan.
TLS Version
TLSv1.3
TLSv1.3 negotiated with TLS_AES_256_GCM_SHA384 (256-bit). Strong configuration with no deprecated protocols or weak ciphers detected.
DMARC Policy
p=reject
Strengths: DMARC policy set to reject (strongest); SPF record present with soft-fail (~all); DKIM configured (selectors: selector1).
SPF Record
Present
v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:spf.constantcon
Security Headers
3/5 present
Missing: Referrer-Policy, Permissions-Policy
HSTS
Not enabled
HSTS present but max-age is low (15552000s). Recommended minimum: 15768000 (6 months).
SSL Certificate
Issues
Strengths: Issued by Sectigo Limited. Issues: Certificate expires in 27 days — renewal recommended.
DNSSEC
Enabled
Strengths: 2 nameservers configured (etta.ns.cloudflare.com., bob.ns.cloudflare.com.); 2 MX records present; DNSSEC enabled; Zone transfers properly restricted.