Open
Cached
·
just now
96/100
SECURITY SCORE
Certificate Information
Subject
CN=*.circle.so
Issuer
C=GB, O=Sectigo Limited, CN=Sectigo Public Server Authentication CA DV R36
Valid From
October 14, 2025
Valid Until
November 14, 2026
302 days
Public Key
RSA
2048 bit
Adequate
Signature Algorithm
SHA256-RSA
SHA-256 Fingerprint
1A:15:0F:AD:42:F8:BF:95:23:CE:88:0D:3E:E8:29:9E:7C:0A:EE:65:61:A9:EF:C4:5F:F2:D1:D6:9B:7F:AA:BB
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
Excellent
max-age=31536000; includeSubDomains; preload
Content-Security-Policy
Strong
default-src; object-src; frame-ancestors; +9 more
default-src 'self'; object-src 'none'; frame-ancestors 'none'; sandbox allow-forms allow-same-origin allow-scripts; base-uri 'self'; script-src https://kit.fontawesome.com https://kit-pro.fontawesome.com https://d360-dev-cdn.azureedge.net https://d360-qa-cdn.azureedge.net https://doc360-dev-cdn.azureedge.net https://cdn.dev.document360.net https://challenges.cloudflare.com/ https://cdn.mumbai.document360.net https://cdn.berlin.document360.net https://cdn.florida.document360.net https://cdn.delhi.document360.net https://cdn.sharjah.document360.net https://cdn.texas.document360.net https://cdn.qatar.document360.net https://cdn.titans.document360.net https://cdn.document360.net https://cdn.document360.info https://cdn.document360.io https://cdn.us.document360.io https://cdn.ca.document360.io https://cdn.wk.document360.io https://cdn.airtable.document360.io https://cdn.neurocrine.document360.io 'self' 'nonce-mcpnqmldkghkrqfmpuriqyvzzmufcudu' ; img-src https://cdn.document360.info https://document360devstorage.blob.core.windows.net https://cdn.document360.io https://cdn.us.document360.io https://cdn.ca.document360.io https://cdn.wk.document360.io https://cdn.airtable.document360.io https://cdn.neurocrine.document360.io https://cdn.document360.net https://cdn.dev.document360.net https://cdn.mumbai.document360.net https://cdn.berlin.document360.net https://cdn.florida.document360.net https://cdn.delhi.document360.net https://cdn.sharjah.document360.net https://cdn.texas.document360.net https://cdn.qatar.document360.net https://cdn.titans.document360.net 'self' ; font-src https://fonts.gstatic.com https://fonts.googleapis.com https://d360-dev-cdn.azureedge.net https://d360-qa-cdn.azureedge.net https://doc360-dev-cdn.azureedge.net https://cdn.dev.document360.net https://cdn.mumbai.document360.net https://cdn.berlin.document360.net https://cdn.florida.document360.net https://cdn.delhi.document360.net https://cdn.sharjah.document360.net https://cdn.texas.document360.net https://cdn.qatar.document360.net https://cdn.titans.document360.net https://cdn.document360.net https://cdn.document360.info https://cdn.document360.io https://cdn.us.document360.io https://cdn.ca.document360.io https://cdn.wk.document360.io https://cdn.airtable.document360.io https://cdn.neurocrine.document360.io 'self' ; frame-src https://challenges.cloudflare.com/ 'self' ; style-src https://fonts.googleapis.com https://d360-dev-cdn.azureedge.net https://d360-qa-cdn.azureedge.net https://doc360-dev-cdn.azureedge.net https://cdn.dev.document360.net https://cdn.mumbai.document360.net https://cdn.berlin.document360.net https://cdn.florida.document360.net https://cdn.delhi.document360.net https://cdn.sharjah.document360.net https://cdn.texas.document360.net https://cdn.qatar.document360.net https://cdn.titans.document360.net https://cdn.document360.net https://cdn.document360.info https://cdn.document360.io https://cdn.us.document360.io https://cdn.ca.document360.io https://cdn.wk.document360.io https://cdn.airtable.document360.io https://cdn.neurocrine.document360.io 'self' 'nonce-mcpnqmldkghkrqfmpuriqyvzzmufcudu' ; connect-src https://secure.biztalk360.com 'self' ; upgrade-insecure-requests;
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Good
strict-origin-when-cross-origin
Permissions-Policy
Present
accelerometer=(), ambient-light-sensor=(), autoplay=(*), camera=(*), clipboard-write=(self), geolocation=(), gyroscope=(), magnetometer=(), microphone=(*), midi=(), payment=(), usb=(), fullscreen=(*)
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