HTTP Headers Analysis for https://timetables.trainsplit.dev

Detected Technologies from Headers

See all in URL Inspect 4

ASP.NET

Google Fonts

jsDelivr

Microsoft IIS

HTTP Security Headers

Status

Strict-Transport-Security

Missing

Not configured

Content-Security-Policy

Strong

script-src; style-src; connect-src; +5 more 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 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

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

Server

Microsoft-IIS/4.0

X-Aspnet-Version

Server

1.0.3705

server: Microsoft-IIS/4.0
x-aspnet-version: 1.0.3705

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Sun, 05 Apr 2026 21:12:34 GMT

X-Br-Class

Other

140

X-Request-Id

Other

dd2a485a-58e0-4e55-a5e3-4b4c49dc62a0

date: Sun, 05 Apr 2026 21:12:34 GMT
x-br-class: 140
x-request-id: dd2a485a-58e0-4e55-a5e3-4b4c49dc62a0

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching