DNS Gurus
Cached · just now
91/100 SECURITY SCORE

Certificate Information

Subject
UNKNOWN={:asn1_OPENTYPE, <<19, 2, 67, 72>>}, UNKNOWN={:asn1_OPENTYPE, <<19, 4, 66, 101, 114, 110>>}, UNKNOWN={:asn1_OPENTYPE, <<12, 20, 80, 114, 105, 118, 97, 116, 101, 32, 79, 114, 103, 97, 110, 105, 122, 97, 116, 105, 111, 110>>}, UNKNOWN=CHE-101.494.993, C=CH, L=Zürich, O=SWITCH, CN=www.switch.ch
Issuer
C=US, O=DigiCert Inc, CN=DigiCert EV RSA CA G2
Valid From
October 28, 2025
Valid Until
October 27, 2026 309 days
Public Key
RSA 4096 bit Strong
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
54:F4:10:9A:86:AE:CA:90:4A:08:4E:E2:36:46:FE:88:C6:D4:9A:00:BC:B9:E3:4B:35:FE:00:F6:53:11:7E:3D
Alternative Names
8 domains

Security Configuration

TLS Protocols
TLS 1.2
Forward Secrecy
Limited (Check cipher configuration)
Warnings
  • • TLS 1.3 is not supported (recommended)

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Basic
base-uri; font-src; form-action; +11 more
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
geolocation=(),midi=(),sync-xhr=(),microphone=(),camera=(),magnetometer=(),gyroscope=(),fullscreen=(self),payment=()
Recommendations
  • • Consider adding 'preload' to HSTS for maximum security
  • • Improve CSP by adding more specific directives and removing 'unsafe-inline'

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