Cached · just now
21 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
1
Cache-Control
Caching
max-age=600
Etag
Caching
"610aec1c-aa"
Expires
Caching
Tue, 28 Apr 2026 17:08:43 GMT
Last-Modified
Caching
Wed, 04 Aug 2021 19:35:56 GMT

Content Headers

Content-Length
Content
170
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, 28 Apr 2026 16:58:44 GMT
Via
Other
1.1 varnish
X-Cache
Other
HIT
X-Cache-Hits
Other
1
X-Fastly-Request-Id
Other
9d4c3ac5a0c220cd3ce7011b24fe7528d2794fa7
X-Github-Request-Id
Other
F990:1C21AC:6E78FFE:7B670B2:69F0E743
X-Proxy-Cache
Other
MISS
X-Served-By
Other
cache-ewr-kewr1740035-EWR
X-Timer
Other
S1777395525.562313,VS0,VE1

Recommendations

Enable compression (gzip/brotli) to improve performance