HTTP Headers Analysis for https://mobile.1und1.de

Detected Technologies from Headers

See all in URL Inspect 2

Envoy

Nginx

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=15552001; includeSubDomains

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

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

Transfer-Encoding

Performance

chunked

connection: close
transfer-encoding: chunked

Caching Headers

Cache-Control

Caching

no-cache, no-store, max-age=0, must-revalidate

Expires

Caching

0

Pragma

Caching

no-cache

cache-control: no-cache, no-store, max-age=0, must-revalidate
expires: 0
pragma: no-cache

Content Headers

Content-Type

Content

text/html; charset=UTF-8

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

Server Headers

Server

nginx

server: nginx

CORS Headers

Access-Control-Allow-Credentials

Cors

true

Access-Control-Allow-Headers

Cors

DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range

Access-Control-Allow-Methods

Cors

GET, POST, OPTIONS

Access-Control-Expose-Headers

Cors

Content-Length,Content-Range,Content-Type

access-control-allow-credentials: true
access-control-allow-headers: DNT,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Range
access-control-allow-methods: GET, POST, OPTIONS
access-control-expose-headers: Content-Length,Content-Range,Content-Type

Cookies Headers

Set-Cookie

Cookies

set-cookie: DPX=v1:R7B/+1THpc:gZ7sRfvL:6a6ca0c1:de; Path=/; Expires=Fri, 31-Jul-26 13:18:52 GMT; HttpOnly; Secure; SameSite=Lax
tnt_sc=YWMscHNfaWQsZG0sc2UsbHAsdCxhcCxiayxtYyx3aW5fbWMsa3drLG1iaWQsenh1aWQKLCwxLCxtb2IsMTc4NTUwMDMzMiwxLCwwOTRERjExLDA5NERGMTEsLCw%3D; Max-Age=2592000; Expires=Sun, 30 Aug 2026 12:18:52 GMT; Path=/; Domain=.1und1.de; Secure; HTTPOnly; SameSite=Lax
eue_delivery_session_id=d9a07a39-76e9-48f9-ad43-9aea8d84751a; Max-Age=1800; Expires=Fri, 31 Jul 2026 12:48:52 GMT; Path=/; Domain=1und1.de; Secure; HTTPOnly; SameSite=Lax

Other Headers

Date

Other

Fri, 31 Jul 2026 12:18:52 GMT

X-Appid

Other

cdp 1.0.373+A.88991d58a

X-Cdp-Session-Id

Other

X-Content-Release

Other

1785415487

X-Envoy-Upstream-Service-Time

Other

50

X-Request-Id

Other

1dd3638c891b27bda8b634698538af6f, 1dd3638c891b27bda8b634698538af6f

X-Trace-Id

Other

7e894afe-e0dd-424d-be63-801792759079

date: Fri, 31 Jul 2026 12:18:52 GMT
x-appid: cdp 1.0.373+A.88991d58a
x-cdp-session-id: 
x-content-release: 1785415487
x-envoy-upstream-service-time: 50
x-request-id: 1dd3638c891b27bda8b634698538af6f, 1dd3638c891b27bda8b634698538af6f
x-trace-id: 7e894afe-e0dd-424d-be63-801792759079

Recommendations

Enable compression (gzip/brotli) to improve performance