SSL Verification Bypassed
The server's SSL certificate could not be verified. The analysis was completed using insecure mode. Data may be less reliable.
Reason:
Hostname Mismatch - certificate is issued for *.customer.io, customer.io, not for mail.y42.com
Open
Cached
·
just now
7
Headers
HTTP Security Headers
Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
- • Consider adding 'preload' to HSTS for maximum security
- • Add Content-Security-Policy header to prevent XSS attacks
- • Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
- • Add X-Content-Type-Options: nosniff
- • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
- • Consider adding Permissions-Policy to control browser features
Performance Headers
No performance headers found
Caching Headers
Cache-Control
no-cache, no-store, must-revalidate, max-age=0
cache-control: no-cache, no-store, must-revalidate, max-age=0
Content Headers
Content-Length
0
content-length: 0
Server Headers
No server headers found
CORS Headers
Access-Control-Allow-Origin
*
access-control-allow-origin: *
Cookies Headers
Other Headers
Alt-Svc
h3=":443"; ma=2592000
Date
Sun, 03 May 2026 09:59:59 GMT
Via
1.1 google
alt-svc: h3=":443"; ma=2592000 date: Sun, 03 May 2026 09:59:59 GMT via: 1.1 google
Recommendations
Enable compression (gzip/brotli) to improve performance