HTTP Headers Analysis for https://pustefix-framework.org

SSL Verification Bypassed

The server's SSL certificate could not be verified. The analysis was completed using insecure mode. Data may be less reliable.

Reason:

Hostname Mismatch - certificate is issued for *.github.com, *.github.io, *.githubusercontent.com, github.com, github.io, githubusercontent.com, not for pustefix-framework.org

Open Cached · just now

20 Headers

Detected Technologies from Headers

See all in URL Inspect 3

Fastly

GitHub

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

Vary

Performance

Accept-Encoding

accept-ranges: bytes
vary: Accept-Encoding

Caching Headers

Age

Caching

Cache-Control

Caching

max-age=600

Etag

Caching

"636b7c90-1936"

Expires

Caching

Fri, 15 May 2026 05:08:25 GMT

Last-Modified

Caching

Wed, 09 Nov 2022 10:10:24 GMT

age: 0
cache-control: max-age=600
etag: "636b7c90-1936"
expires: Fri, 15 May 2026 05:08:25 GMT
last-modified: Wed, 09 Nov 2022 10:10:24 GMT

Content Headers

Content-Length

Content

6454

Content-Type

Content

text/html; charset=utf-8

content-length: 6454
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

Fri, 15 May 2026 04:58:25 GMT

Via

Other

1.1 varnish

X-Cache

Other

MISS

X-Cache-Hits

Other

X-Fastly-Request-Id

Other

65c0b72d7e9dfe54c4b74cf6d5e68242795ac521

X-Github-Request-Id

Other

825A:3FDCC2:2B139B:2E99EF:6A06A7F1

X-Proxy-Cache

Other

MISS

X-Served-By

Other

cache-lga21932-LGA

X-Timer

Other

S1778821106.516352,VS0,VE26

date: Fri, 15 May 2026 04:58:25 GMT
via: 1.1 varnish
x-cache: MISS
x-cache-hits: 0
x-fastly-request-id: 65c0b72d7e9dfe54c4b74cf6d5e68242795ac521
x-github-request-id: 825A:3FDCC2:2B139B:2E99EF:6A06A7F1
x-proxy-cache: MISS
x-served-by: cache-lga21932-LGA
x-timer: S1778821106.516352,VS0,VE26

Recommendations

Enable compression (gzip/brotli) to improve performance