Guest session
Check Detail

zelfy.com · DNS

Passed Grade A
100.0%
Hostname zelfy.com
Check name DNS
last run 15/10/2025 01:57
Result
Passed Grade A 91.0%

Result Detail

DNS
Host Type Answer TTL
52.20.84.62 —

Result Detail

HEADER
Alerts
  • Content-Security-Policy: Content-Security-Policy missing
  • 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
Normalized headers
date Tue, 14 Oct 2025 23:57:05 GMT
content-type text/html; charset=UTF-8
content-length 7224
accept-ch Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
cf-mitigated challenge
critical-ch Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
cross-origin-embedder-policy require-corp
cross-origin-opener-policy same-origin
cross-origin-resource-policy same-origin
origin-agent-cluster ?1
permissions-policy accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()
referrer-policy same-origin
server-timing chlray;desc="98eb045c7c7fdc6c"
x-content-type-options nosniff
x-frame-options SAMEORIGIN
cache-control private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
expires Thu, 01 Jan 1970 00:00:01 GMT
strict-transport-security max-age=31536000; includeSubDomains; preload
speculation-rules "/cdn-cgi/speculation"
server cloudflare
cf-ray 98eb045c7c7fdc6c-FRA
alt-svc h3=":443"; ma=86400
Transport
Check name Status Actual Expected Detail Severity Recommendation
Strict-Transport-Security ✅ Passed max-age=31536000; includeSubDomains; preload max-age>=15768000; includeSubDomains; preload HSTS policy robust 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 ✅ Passed nosniff nosniff Value matches recommendation High X-Content-Type-Options: nosniff
Framing
Check name Status Actual Expected Detail Severity Recommendation
X-Frame-Options ✅ Passed SAMEORIGIN DENY or SAMEORIGIN Value accepted High X-Frame-Options: DENY
Privacy
Check name Status Actual Expected Detail Severity Recommendation
Referrer-Policy ✅ Passed same-origin strict-origin-when-cross-origin / same-origin strict-origin-when-cross-origin Medium Referrer-Policy: strict-origin-when-cross-origin
Browser Features
Check name Status Actual Expected Detail Severity Recommendation
Permissions-Policy ✅ Passed accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=() camera=(); geolocation=(); microphone=() camera=(); geolocation=(); microphone=() Medium Permissions-Policy: camera=(), geolocation=(), microphone=()
Cross-Origin
Check name Status Actual Expected Detail Severity Recommendation
Cross-Origin-Opener-Policy ✅ Passed same-origin same-origin Value matches recommendation High Cross-Origin-Opener-Policy: same-origin
Cross-Origin-Embedder-Policy ✅ Passed require-corp require-corp Value matches recommendation High Cross-Origin-Embedder-Policy: require-corp
Cross-Origin-Resource-Policy ✅ Passed same-origin same-origin Value matches recommendation Medium Cross-Origin-Resource-Policy: same-origin
Origin-Agent-Cluster ✅ Passed ?1 ?1 Value matches recommendation Low Origin-Agent-Cluster: ?1
Caching
Check name Status Actual Expected Detail Severity Recommendation
Cache-Control ✅ Passed private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0 no-store, private, max-age=0 no-store, private, max-age=0 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/2 403 
date: Tue, 14 Oct 2025 23:57:05 GMT
content-type: text/html; charset=UTF-8
content-length: 7224
accept-ch: Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
cf-mitigated: challenge
critical-ch: Sec-CH-UA-Bitness, Sec-CH-UA-Arch, Sec-CH-UA-Full-Version, Sec-CH-UA-Mobile, Sec-CH-UA-Model, Sec-CH-UA-Platform-Version, Sec-CH-UA-Full-Version-List, Sec-CH-UA-Platform, Sec-CH-UA, UA-Bitness, UA-Arch, UA-Full-Version, UA-Mobile, UA-Model, UA-Platform-Version, UA-Platform, UA
cross-origin-embedder-policy: require-corp
cross-origin-opener-policy: same-origin
cross-origin-resource-policy: same-origin
origin-agent-cluster: ?1
permissions-policy: accelerometer=(),autoplay=(),browsing-topics=(),camera=(),clipboard-read=(),clipboard-write=(),geolocation=(),gyroscope=(),hid=(),interest-cohort=(),magnetometer=(),microphone=(),payment=(),publickey-credentials-get=(),screen-wake-lock=(),serial=(),sync-xhr=(),usb=()
referrer-policy: same-origin
server-timing: chlray;desc="98eb045c7c7fdc6c"
x-content-type-options: nosniff
x-frame-options: SAMEORIGIN
cache-control: private, max-age=0, no-store, no-cache, must-revalidate, post-check=0, pre-check=0
expires: Thu, 01 Jan 1970 00:00:01 GMT
strict-transport-security: max-age=31536000; includeSubDomains; preload
speculation-rules: "/cdn-cgi/speculation"
server: cloudflare
cf-ray: 98eb045c7c7fdc6c-FRA
alt-svc: h3=":443"; ma=86400

Result Detail

SSL
Check name Status Value
certificate chain is complete ✅ Passed 3
root CA is trusted ✅ Passed Trusted
cert valid for ✅ Passed 69
chain certs are valid until ✅ Passed 22.12.2025
CN matches Domainname ✅ Passed zelfy.com
certificate subject ✅ Passed CN=zelfy.com
certificate issuer ✅ Passed C=US, O=Let's Encrypt, CN=R12
signature algorithm ✅ Passed RSA-SHA256
TLS protocol ✅ Passed TLSv1.2 ECDHE-RSA-AES128-GCM-SHA256
Subject Alternative Names ✅ Passed zelfy.com
Public Key ✅ Passed RSA 4096
Certificate chain
# Common name Issuer Valid until CA
0 zelfy.com C=US, O=Let's Encrypt, CN=R12 22.12.2025 22:33:30 No
1 zelfy.com C=US, O=Let's Encrypt, CN=R12 22.12.2025 22:33:30 No
2 R12 C=US, O=Internet Security Research Group, CN=ISRG Root X1 13.03.2027 00:59:59 Yes
TLS details
Negotiated protocol TLSv1.2
Cipher suite ECDHE-RSA-AES128-GCM-SHA256 (128 bit)
Cipher version TLSv1.2
Perfect Forward Secrecy OK
Earliest chain expiry 22.12.2025 22:33
Fingerprints
SHA-256 3A:E0:D4:1E:4A:0A:41:AE:99:DC:7E:2A:60:4B:85:94:D2:99:0C:74:A1:BA:65:08:50:2B:05:B4:35:EB:85:9B
SHA-1 EE:33:C6:6C:ED:23:D8:19:9B:58:64:99:CC:59:46:C0:7D:41:2D:1A
Revocation
OCSP URLs
—
CRL URLs
Full Name: URI:http://r12.c.lencr.org/125.crl
Issuer URLs (AIA)
http://r12.i.lencr.org/
OCSP Must-Staple No
Trust evaluation

Attempted: Yes

Trusted: Yes

OpenSSL diagnostic command
openssl s_client -connect zelfy.com:443 -servername zelfy.com

Result Detail

WAF
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  • Shield level Mythisch
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