DNS Gurus
Cached · just now
19 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Good
max-age=31536000; includeSubDomains
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Excellent
DENY
X-Content-Type-Options
Good
nosniff
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 Referrer-Policy header (recommended: strict-origin-when-cross-origin)
  • • Consider adding Permissions-Policy to control browser features

Performance Headers

2 headers
Accept-Ranges
Performance
bytes
Connection
Performance
close

Caching Headers

4 headers
Age
Caching
3961655
Cache-Control
Caching
public, max-age=0, must-revalidate
Etag
Caching
"2772cf4eec318e78ac2c4f46e8daddb1"
Last-Modified
Caching
Wed, 26 Nov 2025 12:00:35 GMT

Content Headers

3 headers
Content-Disposition
Content
inline; filename="500"
Content-Length
Content
33478
Content-Type
Content
text/html; charset=utf-8

Server Headers

1 headers
Server
Server
Vercel

CORS Headers

1 headers
Access-Control-Allow-Origin
Cors
*

Cookies Headers

0 headers
No cookies headers found

Other Headers

4 headers
Date
Other
Sun, 11 Jan 2026 08:28:09 GMT
X-Matched-Path
Other
/500
X-Vercel-Cache
Other
MISS
X-Vercel-Id
Other
iad1::vklgl-1768120089178-662f704c2aae

Recommendations

Enable compression (gzip/brotli) to improve performance