HTTP Headers Analysis for https://hex.pm

Detected Technologies from Headers

See all in URL Inspect 5

Gravatar

Asciinema

Google Fonts

hCaptcha

Stripe

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31536000

Content-Security-Policy

Strong

script-src; style-src; connect-src; +8 more Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Missing

Not configured

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Good

strict-origin-when-cross-origin

Permissions-Policy

Missing

Not configured

Recommendations

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• Consider adding Permissions-Policy to control browser features

Performance Headers

Connection

Performance

close

Vary

Performance

accept-encoding

connection: close
vary: accept-encoding

Caching Headers

Cache-Control

Caching

max-age=0, private, must-revalidate

cache-control: max-age=0, private, must-revalidate

Content Headers

Content-Length

Content

93342

Content-Type

Content

text/html; charset=utf-8

content-length: 93342
content-type: text/html; charset=utf-8

Server Headers

No server headers found

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: _hexpm_key=XCP.d04LkndmWDzNblE1vx7BHW3fMqp-cuRbwlIfKp3fUyhkLAQv7X7CgIffPAmaBBC0HnvN3YBAed0rQe-XAJ8XW1RdlML3kBL5vXb_zSUoSUl0dw; path=/; expires=Fri, 16 Oct 2026 12:22:32 GMT; max-age=2592000; secure; HttpOnly

Other Headers

Alt-Svc

Other

h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

Date

Other

Wed, 16 Sep 2026 12:22:32 GMT

Via

Other

1.1 google

X-Permitted-Cross-Domain-Policies

Other

none

X-Request-Id

Other

GNXMkacwLN6d8hgGzOiB

alt-svc: h3=":443"; ma=2592000,h3-29=":443"; ma=2592000
date: Wed, 16 Sep 2026 12:22:32 GMT
via: 1.1 google
x-permitted-cross-domain-policies: none
x-request-id: GNXMkacwLN6d8hgGzOiB

Recommendations

Enable compression (gzip/brotli) to improve performance