HTTP Headers Analysis for https://docs.assembled.com

Detected Technologies from Headers

See all in URL Inspect 3

Fastly

GitHub

Varnish

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31556952

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

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• 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

"69e6abe5-83f88"

Expires

Caching

Wed, 13 May 2026 02:04:10 GMT

Last-Modified

Caching

Mon, 20 Apr 2026 22:42:45 GMT

age: 0
cache-control: max-age=600
etag: "69e6abe5-83f88"
expires: Wed, 13 May 2026 02:04:10 GMT
last-modified: Mon, 20 Apr 2026 22:42:45 GMT

Content Headers

Content-Length

Content

540552

Content-Type

Content

text/html; charset=utf-8

content-length: 540552
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

Wed, 13 May 2026 01:54:10 GMT

Via

Other

1.1 varnish

X-Cache

Other

MISS

X-Cache-Hits

Other

0

X-Fastly-Request-Id

Other

97147ef0da409432ad45f91aae235a6e31d657b7

X-Github-Request-Id

Other

9BAC:3513E4:27AA70A:299BEAC:6A03D9C2

X-Proxy-Cache

Other

MISS

X-Served-By

Other

cache-bos-kbos510040-BOS

X-Timer

Other

S1778637251.908307,VS0,VE48

date: Wed, 13 May 2026 01:54:10 GMT
via: 1.1 varnish
x-cache: MISS
x-cache-hits: 0
x-fastly-request-id: 97147ef0da409432ad45f91aae235a6e31d657b7
x-github-request-id: 9BAC:3513E4:27AA70A:299BEAC:6A03D9C2
x-proxy-cache: MISS
x-served-by: cache-bos-kbos510040-BOS
x-timer: S1778637251.908307,VS0,VE48

Recommendations

Enable compression (gzip/brotli) to improve performance