HTTP Headers Analysis for https://mailout01.virtualhosts.de

Detected Technologies from Headers

See all in URL Inspect 1

Apache

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=15768000

Content-Security-Policy

Weak

frame-ancestors 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

• 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
• 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

Accept-Ranges

Performance

bytes

Connection

Performance

Upgrade, close

Vary

Performance

User-Agent

accept-ranges: bytes
connection: Upgrade, close
vary: User-Agent

Caching Headers

Last-Modified

Caching

Thu, 29 Sep 2022 07:43:50 GMT

last-modified: Thu, 29 Sep 2022 07:43:50 GMT

Content Headers

Content-Length

Content

4

Content-Type

Content

text/html

content-length: 4
content-type: text/html

Server Headers

Server

Apache

server: Apache

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Wed, 12 Aug 2026 09:47:54 GMT

Upgrade

Other

h2,h2c

date: Wed, 12 Aug 2026 09:47:54 GMT
upgrade: h2,h2c

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching