21 Headers

Detected Technologies from Headers

HTTP Security Headers

Status
Strict-Transport-Security
Missing
Not configured
Content-Security-Policy
Missing
Not configured Analyze
Content-Security-Policy-Report-Only
Missing
Not configured Analyze
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

Accept-Ranges
Performance
bytes
Connection
Performance
close
Vary
Performance
Accept-Encoding

Caching Headers

Age
Caching
0
Cache-Control
Caching
max-age=600
Etag
Caching
"5f2847ab-142"
Expires
Caching
Tue, 07 Apr 2026 20:46:55 GMT
Last-Modified
Caching
Mon, 03 Aug 2020 17:21:47 GMT

Content Headers

Content-Length
Content
322
Content-Type
Content
text/html; charset=utf-8

Server Headers

Server
Server
GitHub.com

CORS Headers

Access-Control-Allow-Origin
Cors
*

Cookies Headers

No cookies headers found

Other Headers

Date
Other
Tue, 07 Apr 2026 20:36:55 GMT
Via
Other
1.1 varnish
X-Cache
Other
MISS
X-Cache-Hits
Other
0
X-Fastly-Request-Id
Other
25f79f103e5c3ac61a5a14792004adea78ee7b36
X-Github-Request-Id
Other
DB2C:3DB57:7E236F:836F76:69D56AE6
X-Proxy-Cache
Other
MISS
X-Served-By
Other
cache-lga21959-LGA
X-Timer
Other
S1775594216.537829,VS0,VE18

Recommendations

Enable compression (gzip/brotli) to improve performance