HTTP Headers Analysis for https://api.docuseal.com

HTTP Security Headers

Status

Strict-Transport-Security

Good

max-age=63072000; includeSubDomains

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Good

SAMEORIGIN

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Good

strict-origin-when-cross-origin

Permissions-Policy

Missing

Not configured

Recommendations

• Consider adding 'preload' to HSTS for maximum security
• Add Content-Security-Policy header to prevent XSS attacks
• Consider adding Permissions-Policy to control browser features

Performance Headers

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

Accept-Encoding

connection: close
transfer-encoding: chunked
vary: Accept-Encoding

Caching Headers

No caching headers found

Content Headers

Content-Type

Content

text/html; charset=utf-8

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

Server Headers

X-Runtime

Server

0.001166

x-runtime: 0.001166

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Alt-Svc

Other

h3=":443"; ma=2592000

Date

Other

Thu, 06 Aug 2026 07:32:15 GMT

Via

Other

1.1 Caddy

X-Permitted-Cross-Domain-Policies

Other

none

X-Request-Id

Other

06575209-7bf9-4d5e-9242-e450eeb59e31

alt-svc: h3=":443"; ma=2592000
date: Thu, 06 Aug 2026 07:32:15 GMT
via: 1.1 Caddy
x-permitted-cross-domain-policies: none
x-request-id: 06575209-7bf9-4d5e-9242-e450eeb59e31

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching