HTTP Headers Analysis for https://webpack.github.io

Detected Technologies from Headers

See all in URL Inspect 3

Fastly

GitHub Active incidents

Varnish

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

accept-ranges: bytes
connection: close
vary: Accept-Encoding

Caching Headers

Age

Caching

0

Cache-Control

Caching

max-age=600

Etag

Caching

"67a525d7-deb"

Expires

Caching

Tue, 05 May 2026 14:32:04 GMT

Last-Modified

Caching

Thu, 06 Feb 2025 21:12:55 GMT

age: 0
cache-control: max-age=600
etag: "67a525d7-deb"
expires: Tue, 05 May 2026 14:32:04 GMT
last-modified: Thu, 06 Feb 2025 21:12:55 GMT

Content Headers

Content-Length

Content

3563

Content-Type

Content

text/html; charset=utf-8

content-length: 3563
content-type: text/html; charset=utf-8

Server Headers

Server

GitHub.com

server: GitHub.com

CORS Headers

Access-Control-Allow-Origin

Cors

*

access-control-allow-origin: *

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Tue, 05 May 2026 14:22:04 GMT

Via

Other

1.1 varnish

X-Cache

Other

MISS

X-Cache-Hits

Other

0

X-Fastly-Request-Id

Other

3c785847b192b0841541c843c48aec01e735ae61

X-Github-Request-Id

Other

7768:24F06B:1890902:1BA9720:69F9FD0C

X-Proxy-Cache

Other

MISS

X-Served-By

Other

cache-ewr-kewr1740068-EWR

X-Timer

Other

S1777990924.055992,VS0,VE25

date: Tue, 05 May 2026 14:22:04 GMT
via: 1.1 varnish
x-cache: MISS
x-cache-hits: 0
x-fastly-request-id: 3c785847b192b0841541c843c48aec01e735ae61
x-github-request-id: 7768:24F06B:1890902:1BA9720:69F9FD0C
x-proxy-cache: MISS
x-served-by: cache-ewr-kewr1740068-EWR
x-timer: S1777990924.055992,VS0,VE25

Recommendations

Enable compression (gzip/brotli) to improve performance