Open
Cached
·
just now
90/100
SECURITY SCORE
Certificate Information
Subject
CN=cloud.tiertek.com
Issuer
C=US, O=Let's Encrypt, CN=E8
Valid From
December 09, 2025
Valid Until
March 09, 2026
57 days
Public Key
ECDSA
384 bit
(P-384)
Strong
Signature Algorithm
ECDSA-SHA384
SHA-256 Fingerprint
A1:4A:61:59:30:C1:50:44:9C:D6:EA:C6:93:D8:AE:C0:BA:61:25:D4:51:AB:75:F4:6E:9D:5A:4C:3D:8F:4F:1E
Alternative Names
Security Configuration
TLS Protocols
TLS 1.2
TLS 1.3
Forward Secrecy
Supported
(Modern clients use PFS)
HTTP Security Headers
Status
Strict-Transport-Security
Present
max-age=63072000; includeSubdomains
Content-Security-Policy
Basic
default-src; base-uri; manifest-src; +12 more
default-src 'none';base-uri 'none';manifest-src 'self';script-src 'nonce-rI/LRdZKkyhwVGMdTQChM41yOwh/6D2P9zpeQn7fhVM=' blob: 'wasm-unsafe-eval';script-src-elem 'strict-dynamic' 'nonce-rI/LRdZKkyhwVGMdTQChM41yOwh/6D2P9zpeQn7fhVM=' blob: 'wasm-unsafe-eval';style-src 'self' 'unsafe-inline';img-src 'self' data: blob: https://*.tile.openstreetmap.org https://cloud.tiertek.com;font-src 'self' data:;connect-src 'self' blob: stun.nextcloud.com:443;media-src 'self' blob:;frame-src 'self' nc: https://cloud.tiertek.com;child-src blob: 'self';frame-ancestors 'self' https://cloud.tiertek.com;worker-src blob: 'self';form-action 'self' https://cloud.tiertek.com
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Present
same-origin
Permissions-Policy
Missing
Not configured
Recommendations
- • Increase HSTS max-age to at least 1 year and add includeSubDomains
- • Improve CSP by adding more specific directives and removing 'unsafe-inline'
- • Consider adding Permissions-Policy to control browser features
CAA Records (Certificate Authority Authorization)
CAA Records
Not Configured
(Any CA can issue certificates)
CAA Issues
- • No CAA records configured - any CA can issue certificates
Recommendations
- • Implement CAA records to restrict which CAs can issue certificates for your domain
- • This adds an extra layer of security against unauthorized certificate issuance
- • Example: Add CAA record 'example.com. CAA 0 issue "letsencrypt.org"'
- • Consider adding 'iodef' record to receive security incident reports