DNS Gurus

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 excel6.space4server.com, not for www.excel6.space4server.com

Cached · just now
13 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Good
SAMEORIGIN
X-Content-Type-Options
Good
nosniff
Referrer-Policy
Missing
Not configured
Permissions-Policy
Missing
Not configured
Recommendations
  • • Add Strict-Transport-Security header with max-age of at least 1 year
  • • Add Content-Security-Policy header to prevent XSS attacks
  • • Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

0 headers
No performance headers found

Caching Headers

4 headers
Cache-Control
Caching
post-check=0, pre-check=0
Expires
Caching
Fri, 28 May 1999 00:00:00 GMT
Last-Modified
Caching
Thu, 29 Jan 2026 01:46:10 GMT
Pragma
Caching
no-cache

Content Headers

1 headers
Content-Type
Content
text/html; charset=utf-8

Server Headers

1 headers
Server
Server
nginx

CORS Headers

0 headers
No CORS headers found

Cookies Headers

1 headers
Set-Cookie
Cookies
plesk-ext-social-login-jwt-session=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJpc3MiOiJwbGVzayIsImlhdCI6MTc2OTY1MTE3MCwiZGF0YSI6eyJzdGF0ZS13ZWJhdXRobiI6ImpaN0ZsM3BZblJ0ZXdoVm9VeHF1M0lkYkFIUjl2ZDEwWHE4UnA0d3R8cmVkaXJlY3QtcGxlc2s9aHR0cHMlM0ElMkYlMkZ3d3cuZXhjZWw2LnNwYWNlNHNlcnZlci5jb20lMkZtb2R1bGVzJTJGc29jaWFsLWxvZ2luJTJGcHVibGljJTJGbG9naW4ucGhwJTNGcHJvdmlkZXIlM0R3ZWJhdXRobiIsInN0YXRlLWdvb2dsZSI6ImhOTkd4dFRvMTViZkV6RTFaeDNPVUJ3WnB1dmNzek1waXhNWnBxOXN8cmVkaXJlY3QtcGxlc2s9aHR0cHMlM0ElMkYlMkZ3d3cuZXhjZWw2LnNwYWNlNHNlcnZlci5jb20lMkZtb2R1bGVzJTJGc29jaWFsLWxvZ2luJTJGcHVibGljJTJGbG9naW4ucGhwJTNGcHJvdmlkZXIlM0Rnb29nbGUiLCJzdGF0ZS1naXRodWIiOiJKTkRTTjNMTlZkaG9iVkxkeVozTDZIbzQ0aWFxOEF5M1hlUWtrZ3VIfHJlZGlyZWN0LXBsZXNrPWh0dHBzJTNBJTJGJTJGd3d3LmV4Y2VsNi5zcGFjZTRzZXJ2ZXIuY29tJTJGbW9kdWxlcyUyRnNvY2lhbC1sb2dpbiUyRnB1YmxpYyUyRmxvZ2luLnBocCUzRnByb3ZpZGVyJTNEZ2l0aHViIiwic3RhdGUtZmFjZWJvb2siOiJ6NGM3OVREeHVDbHdKY3BzUzlyTjNuWkZuVzJ6RmF5ZXJESlptSUo2fHJlZGlyZWN0LXBsZXNrPWh0dHBzJTNBJTJGJTJGd3d3LmV4Y2VsNi5zcGFjZTRzZXJ2ZXIuY29tJTJGbW9kdWxlcyUyRnNvY2lhbC1sb2dpbiUyRnB1YmxpYyUyRmxvZ2luLnBocCUzRnByb3ZpZGVyJTNEZmFjZWJvb2sifX0.RlbwyyPBVMSoUqtqSb6RG0lxLf5HtdZWmxSvRZneZzM; path=/; secure; HttpOnly

Other Headers

3 headers
Alt-Svc
Other
h3=":443"; ma=86400
Date
Other
Thu, 29 Jan 2026 01:46:10 GMT
P3p
Other
CP="NON COR CURa ADMa OUR NOR UNI COM NAV STA"

Recommendations

Enable compression (gzip/brotli) to improve performance