Check Detail
example.com · DNS
Passed
Grade A
100.0%
Result Detail
DNS| Host | Type | Answer | TTL |
|---|---|---|---|
| 104.18.26.120 | — | ||
| 104.18.27.120 | — | ||
| 2606:4700::6812:1a78 | — | ||
| 2606:4700::6812:1b78 | — |
Result Detail
HEADERAlerts
- Strict-Transport-Security: Strict-Transport-Security missing
- Content-Security-Policy: Content-Security-Policy missing
- X-Content-Type-Options: Header missing
- X-Frame-Options: Header missing
- Referrer-Policy: Header missing
- Permissions-Policy: Permissions-Policy missing
- Cross-Origin-Opener-Policy: Header missing
- Cross-Origin-Embedder-Policy: Header missing
- Cross-Origin-Resource-Policy: Header missing
- Cache-Control: Cache-Control missing restrictive directives
- Expect-CT: Expect-CT missing
- X-Permitted-Cross-Domain-Policies: Header missing
- Access-Control-Allow-Origin: Access-Control-Allow-Origin missing
- Server: Sensitive header exposed
- Origin-Agent-Cluster: Header missing
Normalized headers
| date | Thu, 15 Jan 2026 21:51:06 GMT |
|---|---|
| content-type | text/html |
| cf-ray | 9be897b0cc6a3808-FRA |
| last-modified | Tue, 13 Jan 2026 19:12:22 GMT |
| allow | GET, HEAD |
| accept-ranges | bytes |
| age | 9524 |
| cf-cache-status | HIT |
| server | cloudflare |
Transport
| Check name | Status | Actual | Expected | Detail | Severity | Recommendation |
|---|---|---|---|---|---|---|
| Strict-Transport-Security | ❌ Missing | max-age>=15768000; includeSubDomains; preload | Strict-Transport-Security missing | Critical | Strict-Transport-Security: max-age=63072000; includeSubDomains; preload | |
| Expect-CT | ❌ Missing | enforce; max-age>=86400 | Expect-CT missing | Medium | Expect-CT: enforce, max-age=86400, report-uri="https://report.example.com" |
Content Security
| Check name | Status | Actual | Expected | Detail | Severity | Recommendation |
|---|---|---|---|---|---|---|
| Content-Security-Policy | ❌ Missing | default-src 'self'; frame-ancestors 'none' | Content-Security-Policy missing | Critical | Content-Security-Policy: default-src 'self'; frame-ancestors 'none' |
MIME
| Check name | Status | Actual | Expected | Detail | Severity | Recommendation |
|---|---|---|---|---|---|---|
| X-Content-Type-Options | ❌ Missing | nosniff | Header missing | High | X-Content-Type-Options: nosniff |
Framing
| Check name | Status | Actual | Expected | Detail | Severity | Recommendation |
|---|---|---|---|---|---|---|
| X-Frame-Options | ❌ Missing | DENY or SAMEORIGIN | Header missing | High | X-Frame-Options: DENY |
Privacy
| Check name | Status | Actual | Expected | Detail | Severity | Recommendation |
|---|---|---|---|---|---|---|
| Referrer-Policy | ❌ Missing | strict-origin-when-cross-origin / same-origin | Header missing | Medium | Referrer-Policy: strict-origin-when-cross-origin |
Browser Features
| Check name | Status | Actual | Expected | Detail | Severity | Recommendation |
|---|---|---|---|---|---|---|
| Permissions-Policy | ❌ Missing | camera=(); geolocation=(); microphone=() | Permissions-Policy missing | Medium | Permissions-Policy: camera=(), geolocation=(), microphone=() |
Cross-Origin
| Check name | Status | Actual | Expected | Detail | Severity | Recommendation |
|---|---|---|---|---|---|---|
| Cross-Origin-Opener-Policy | ❌ Missing | same-origin | Header missing | High | Cross-Origin-Opener-Policy: same-origin | |
| Cross-Origin-Embedder-Policy | ❌ Missing | require-corp | Header missing | High | Cross-Origin-Embedder-Policy: require-corp | |
| Cross-Origin-Resource-Policy | ❌ Missing | same-origin | Header missing | Medium | Cross-Origin-Resource-Policy: same-origin | |
| Origin-Agent-Cluster | ❌ Missing | ?1 | Header missing | Low | Origin-Agent-Cluster: ?1 |
Caching
| Check name | Status | Actual | Expected | Detail | Severity | Recommendation |
|---|---|---|---|---|---|---|
| Cache-Control | ❌ Missing | no-store, private, max-age=0 | Cache-Control missing restrictive directives | High | Cache-Control: no-store, private, max-age=0 |
Legacy
| Check name | Status | Actual | Expected | Detail | Severity | Recommendation |
|---|---|---|---|---|---|---|
| X-Permitted-Cross-Domain-Policies | ❌ Missing | none | Header missing | Low | X-Permitted-Cross-Domain-Policies: none |
CORS
| Check name | Status | Actual | Expected | Detail | Severity | Recommendation |
|---|---|---|---|---|---|---|
| Access-Control-Allow-Origin | ❌ Missing | Scoped origin (no wildcard) | Access-Control-Allow-Origin missing | Medium | Access-Control-Allow-Origin: https://app.example.com |
Information Disclosure
| Check name | Status | Actual | Expected | Detail | Severity | Recommendation |
|---|---|---|---|---|---|---|
| Server | ❌ Missing | cloudflare | Header removed or generic | Sensitive header exposed | High | Remove Server header or set to a generic token |
| X-Powered-By | ✅ Passed | Header removed | Header not exposed | High | Remove X-Powered-By header | |
| X-AspNet-Version | ✅ Passed | Header removed | Header not exposed | Medium | Remove framework version headers |
Raw headers
HTTP/2 200 date: Thu, 15 Jan 2026 21:51:06 GMT content-type: text/html cf-ray: 9be897b0cc6a3808-FRA last-modified: Tue, 13 Jan 2026 19:12:22 GMT allow: GET, HEAD accept-ranges: bytes age: 9524 cf-cache-status: HIT server: cloudflare
Result Detail
SSL| Check name | Status | Value |
|---|---|---|
| certificate chain is complete | ✅ Passed | 5 |
| root CA is trusted | ✅ Passed | Trusted |
| cert valid for | ✅ Passed | 60 |
| chain certs are valid until | ✅ Passed | 16.03.2026 |
| CN matches Domainname | ✅ Passed | example.com |
| certificate subject | ✅ Passed | CN=example.com |
| certificate issuer | ✅ Passed | C=US, O=SSL Corporation, CN=Cloudflare TLS Issuing ECC CA 3 |
| signature algorithm | ✅ Passed | ecdsa-with-SHA256 |
| TLS protocol | ✅ Passed | TLSv1.3 TLS_AES_256_GCM_SHA384 |
| Subject Alternative Names | ✅ Passed | example.com, *.example.com |
| Public Key | ✅ Passed | EC 256 |
Certificate chain
| # | Common name | Issuer | Valid until | CA |
|---|---|---|---|---|
| 0 | example.com | C=US, O=SSL Corporation, CN=Cloudflare TLS Issuing ECC CA 3 | 16.03.2026 19:32:44 | No |
| 1 | example.com | C=US, O=SSL Corporation, CN=Cloudflare TLS Issuing ECC CA 3 | 16.03.2026 19:32:44 | No |
| 2 | Cloudflare TLS Issuing ECC CA 3 | C=US, O=SSL Corporation, CN=SSL.com TLS Transit ECC CA R2 | 27.05.2035 21:49:44 | Yes |
| 3 | SSL.com TLS Transit ECC CA R2 | C=US, O=SSL Corporation, CN=SSL.com TLS ECC Root CA 2022 | 17.10.2037 19:02:22 | Yes |
| 4 | SSL.com TLS ECC Root CA 2022 | C=GB, ST=Greater Manchester, L=Salford, O=Comodo CA Limited, CN=AAA Certificate Services | 01.01.2029 00:59:59 | Yes |
TLS details
| Negotiated protocol | TLSv1.3 |
|---|---|
| Cipher suite | TLS_AES_256_GCM_SHA384 (256 bit) |
| Cipher version | TLSv1.3 |
| Perfect Forward Secrecy | Attention |
| Earliest chain expiry | 16.03.2026 19:32 |
Fingerprints
| SHA-256 | 73:4F:E7:8D:7E:FB:6F:83:4F:AA:76:5A:58:AB:7D:A8:CC:7D:FF:D3:E0:5C:EB:76:9D:C5:BD:65:0D:3C:9F:9B |
|---|---|
| SHA-1 | 95:7D:B6:33:05:63:85:E7:61:77:C9:41:19:EB:93:99:F2:3C:21:18 |
Revocation
OCSP URLs
http://o.cf-i.ssl.com
CRL URLs
Full Name:
URI:http://c.cf-i.ssl.com/ae801ed1c55bb579d79208b0d772acfb8cc3a208.crl
Issuer URLs (AIA)
http://i.cf-i.ssl.com/Cloudflare-TLS-I-E3.cer
OCSP Must-Staple
No
Trust evaluation
Attempted: Yes
Trusted: Yes
OpenSSL diagnostic command
openssl s_client -connect example.com:443 -servername example.com
Result Detail
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