HTTP Headers Analysis for https://www.phoenixframework.org

Detected Technologies from Headers

See all in URL Inspect 1

Fly.io

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=31536000

Content-Security-Policy

Weak

base-uri; frame-ancestors 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
• Significantly strengthen CSP directives
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• Consider adding Permissions-Policy to control browser features

Performance Headers

Connection

Performance

close

connection: close

Caching Headers

Cache-Control

Caching

max-age=0, private, must-revalidate

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

Content Headers

Content-Length

Content

318180

Content-Type

Content

text/html; charset=utf-8

content-length: 318180
content-type: text/html; charset=utf-8

Server Headers

Server

Fly/ec1a4f957c (2026-08-31)

server: Fly/ec1a4f957c (2026-08-31)

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: _phx_site_key=SFMyNTY.g3QAAAABbQAAAAtfY3NyZl90b2tlbm0AAAAYVHc5NnAtTGRBaDlxX2pkTm95TUo1YVA0.D8-evO5zONiTcppwAJHlIp7yKpM_IOYnkEWesqPK91c; path=/; secure; HttpOnly

Other Headers

Date

Other

Wed, 02 Sep 2026 00:06:02 GMT

Fly-Request-Id

Other

01M1FPZRXC0D9C18XP8KWCEPXK-iad

Via

Other

1.1 fly.io, 1.1 fly.io

X-Permitted-Cross-Domain-Policies

Other

none

X-Request-Id

Other

GNFYQQ8DBMpWCoMA-P4C

date: Wed, 02 Sep 2026 00:06:02 GMT
fly-request-id: 01M1FPZRXC0D9C18XP8KWCEPXK-iad
via: 1.1 fly.io, 1.1 fly.io
x-permitted-cross-domain-policies: none
x-request-id: GNFYQQ8DBMpWCoMA-P4C

Recommendations

Enable compression (gzip/brotli) to improve performance