Open
Cached
·
just now
86/100
SECURITY SCORE
Certificate Information
Subject
CN=gmelius.io
Issuer
C=US, O=Google Trust Services, CN=WE1
Valid From
October 10, 2025
Valid Until
January 08, 2026
48 days
Public Key
ECDSA
256 bit
(P-256)
Adequate
Signature Algorithm
ECDSA-SHA256
SHA-256 Fingerprint
F8:6E:3C:75:7A:AB:80:F5:1A:6D:EE:DB:87:13:D1:DC:59:5D:FE:09:4F:9B:22:AB:F9:AF:98:F5:61:C6:81:35
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=31556926
Content-Security-Policy
Basic
default-src; script-src; script-src-elem; +8 more
default-src https://app-staging.gmelius.com 'self'; script-src https://client.crisp.chat https://*.googletagmanager.com https://snap.licdn.com/li.lms-analytics/insight.min.js https://*.firebaseio.com https://js.stripe.com https://www.google-analytics.com https://www.google.com http://www.googletagmanager.com https://www.gstatic.com https://www.googleadservices.com https://ajax.googleapis.com https://*.doubleclick.net https://*.clarity.ms https://c.bing.com https://app.gmelius.com 'unsafe-inline' 'unsafe-eval' 'self'; script-src-elem https://client.crisp.chat https://*.googletagmanager.com https://snap.licdn.com/li.lms-analytics/insight.min.js https://*.firebaseio.com https://www.google-analytics.com https://www.google.com https://www.googletagmanager.com https://www.gstatic.com https://www.googleadservices.com https://ajax.googleapis.com https://*.doubleclick.net https://js.stripe.com https://*.clarity.ms https://c.bing.com https://app.gmelius.com https://app-staging.gmelius.com 'unsafe-inline' 'unsafe-eval' 'self'; img-src https://*.google-analytics.com https://*.googletagmanager.com https://* blob: data: 'self'; child-src 'none'; frame-ancestors chrome-extension://eimcibccahnifekbdhahgehjockhmocg chrome-extension://dheionainndbbpoacpnopgmnihkcmnkl https://gmelius.com https://mail.google.com 'self'; frame-src https://ai.gmelius.com/ https://learn.gmelius.com https://d2nnr6irhfmb65.cloudfront.net/ https://widget.writesonic.com/ https://storage.googleapis.com https://docs.google.com https://bid.g.doubleclick.net https://*.firebaseio.com https://www.loom.com https://*.typeform.com/ https://www.youtube-nocookie.com/ https://news.gmelius.com https://www.youtube-nocookie.com/ https://help.gmelius.com/ https://js.stripe.com/ https://www.google.com https://*.typeform.com/ https://www.loom.com https://share.synthesia.io; style-src https://fonts.googleapis.com https://client.crisp.chat https://app.gmelius.com https://app-staging.gmelius.com 'unsafe-inline' 'self'; font-src https://fonts.gstatic.com 'self'; connect-src https://*.google-analytics.com wss://client.relay.crisp.chat https://client.crisp.chat https://*.analytics.google.com https://*.googletagmanager.com https://api.gmelius.com https://api-staging.gmelius.com https://www.googleapis.com https://*.google-analytics.com https://securetoken.googleapis.com https://*.doubleclick.net https://api.hubapi.com wss://*.firebaseio.com https://gml.email https://firebaseinstallations.googleapis.com https://fcmregistrations.googleapis.com https://storage.googleapis.com/ https://*.clarity.ms https://c.bing.com https://identitytoolkit.googleapis.com https://app-staging.gmelius.com 'self'; worker-src 'self';
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
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'
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • 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