HTTP Headers Analysis for https://posthaven.com

Detected Technologies from Headers

See all in URL Inspect 1

Fly.io Active incidents

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

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

Origin

connection: close
transfer-encoding: chunked
vary: Origin

Caching Headers

Cache-Control

Caching

max-age=0, private, must-revalidate

Etag

Caching

"d6ee1d998aca52f1dd1dd5c14927b2a8"

cache-control: max-age=0, private, must-revalidate
etag: "d6ee1d998aca52f1dd1dd5c14927b2a8"

Content Headers

Content-Type

Content

text/html; charset=utf-8

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

Server Headers

Server

Fly/a589ac11 (2026-05-08)

X-Runtime

Server

0.025113

server: Fly/a589ac11 (2026-05-08)
x-runtime: 0.025113

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: _posthaven_session=BAh7B0kiD3Nlc3Npb25faWQGOgZFVEkiJWZmODEyZmMwN2ZmYjg1MDdjYmExZGY4MDdjZWM3OWJmBjsAVEkiEF9jc3JmX3Rva2VuBjsARkkiMVZFUWxZckcwR3NXdFNwUW1pYTBwV1pkUjREOThyOEw4Mmx6NDZXZUgvcWM9BjsARg%3D%3D--98eda7317f2902d2a0a94ac445b6b7444a9d5dfa; domain=.posthaven.com; path=/; HttpOnly

Other Headers

Date

Other

Mon, 11 May 2026 17:54:48 GMT

Fly-Request-Id

Other

01KRC2TRPTNMMJPD0BQJWDJ050-iad

Via

Other

1.1 fly.io

X-Request-Id

Other

2cc93d166cad97324888ac53c2d8739c

X-Ua-Compatible

Other

IE=Edge,chrome=1

date: Mon, 11 May 2026 17:54:48 GMT
fly-request-id: 01KRC2TRPTNMMJPD0BQJWDJ050-iad
via: 1.1 fly.io
x-request-id: 2cc93d166cad97324888ac53c2d8739c
x-ua-compatible: IE=Edge,chrome=1

Recommendations

Enable compression (gzip/brotli) to improve performance