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21 Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured
X-Frame-Options
Missing
Not configured
X-Content-Type-Options
Missing
Not configured
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 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

3 headers
Accept-Ranges
Performance
bytes
Connection
Performance
keep-alive
Vary
Performance
Accept-Encoding

Caching Headers

5 headers
Age
Caching
0
Cache-Control
Caching
max-age=600
Etag
Caching
"52e2d3de-160"
Expires
Caching
Sun, 23 Nov 2025 23:27:36 GMT
Last-Modified
Caching
Fri, 24 Jan 2014 20:58:06 GMT

Content Headers

2 headers
Content-Length
Content
352
Content-Type
Content
text/html; charset=utf-8

Server Headers

1 headers
Server
Server
GitHub.com

CORS Headers

1 headers
Access-Control-Allow-Origin
Cors
*

Cookies Headers

0 headers
No cookies headers found

Other Headers

9 headers
Date
Other
Sun, 23 Nov 2025 23:17:36 GMT
Via
Other
1.1 varnish
X-Cache
Other
MISS
X-Cache-Hits
Other
0
X-Fastly-Request-Id
Other
21d5720c87afa74c687f562a4a73b89c107c3c82
X-Github-Request-Id
Other
B21D:3D10F7:3823B0:40FF21:6923960F
X-Proxy-Cache
Other
MISS
X-Served-By
Other
cache-nyc-kteb1890072-NYC
X-Timer
Other
S1763939857.515619,VS0,VE27

Recommendations

Enable compression (gzip/brotli) to improve performance

Analysis completed in 90ms