Security - https://web.de BeaverCheck Audit

F

Subresource Integrity

Action

0 of 11 external resources have SRI

FIX

0 of 11 external resources have SRI

External script from js.ui-portal.de lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://js.ui-portal.de/tamago/2.5.0/tamago.js?loglevel=error&view=automatic&tm=teal&stage=live&exclude=ppp&userEventLoad=partitialPageLoadDone

External link from js.ui-portal.de lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://js.ui-portal.de/consent-portal/1.0.0/consent.css

External script from s.uicdn.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://s.uicdn.com/t/prod/iq/mam/purple/daq.js

External script from s.uicdn.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: //s.uicdn.com/t/prod/iq/mam/purple/utag.81.js?utv=ut4.54.202603251028

External script from dl.web.de lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://dl.web.de/tcf/live/v1/js/tcf-api.js

External script from dl.web.de lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://dl.web.de/permission/live/portal/v1/ppp/js/permission-client.js

External script from dl.web.de lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://dl.web.de/permission/live/portal/v1/ppp/js/permission-client-compat.js

External script from js.ui-portal.de lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://js.ui-portal.de/consent-portal/1.0.0/consent.js

External script from dl.web.de lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: https://dl.web.de/tcf/live/v1/js/tcf-api.js

External script from s.uicdn.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: //s.uicdn.com/t/prod/iq/mam/purple/utag.80.js?utv=ut4.54.202603251028

External script from s.uicdn.com lacks integrity attribute

Without SRI, if this CDN is compromised, attackers could inject malicious code.

Got: //s.uicdn.com/t/prod/iq/mam/purple/utag.v.js?a=mam/purple/202603251028&cb=1776818570447

SRI Coverage 0 / 11 of external resources have integrity hashes

Tag	Domain	Integrity
<script>	js.ui-portal.de	✗ Missing
<link>	js.ui-portal.de	✗ Missing
<script>	s.uicdn.com	✗ Missing
<script>	s.uicdn.com	✗ Missing
<script>	dl.web.de	✗ Missing
<script>	dl.web.de	✗ Missing
<script>	dl.web.de	✗ Missing
<script>	js.ui-portal.de	✗ Missing
<script>	dl.web.de	✗ Missing
<script>	s.uicdn.com	✗ Missing
<script>	s.uicdn.com	✗ Missing

B

Content Security Policy

2 of 10 CSP checks passed

REVIEW

2 of 10 CSP checks passed

Raw CSP policy

Got: frame-ancestors 'self' www.united-internet-media.de adimg.uimserv.net advideo.uimserv.net

default-src directive is missing

default-src provides a fallback for other directives. Set it to restrict default resource loading.

Expected: default-src 'self'

No script-src or default-src to check for 'unsafe-inline'

No script-src or default-src to check for 'unsafe-eval'

No script-src or default-src to check for wildcard

object-src falls back to default-src

base-uri directive is missing

Without base-uri, attackers can inject a <base> tag to hijack relative URLs. Set it to 'self' or 'none'.

Expected: base-uri 'self'

frame-ancestors directive is set

Got: frame-ancestors 'self' www.united-internet-media.de adimg.uimserv.net advideo.uimserv.net

form-action directive is missing

form-action restricts where forms can submit data, preventing form hijacking.

Expected: form-action 'self'

upgrade-insecure-requests is not set

This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content.

Expected: upgrade-insecure-requests

default-src provides a fallback for other directives. Set it to restrict default resource loading.

Expected: default-src 'self'

Why this matters

Security gaps expose your site and users to attacks, eroding trust.

Without base-uri, attackers can inject a <base> tag to hijack relative URLs. Set it to 'self' or 'none'.

Expected: base-uri 'self'

Why this matters

Missing base-uri in CSP leaves a base-tag injection attack path open even on otherwise strict policies.

Learn more ▾

A common omission: developers add CSP for script-src and frame-ancestors but forget base-uri. The result is a CSP that looks strict but lets an attacker rewrite every URL on the page via <base href>. Add `base-uri 'self'` to close the gap.

Source: MDN CSP

form-action restricts where forms can submit data, preventing form hijacking.

Expected: form-action 'self'

Why this matters

Security gaps expose your site and users to attacks, eroding trust.

This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content.

Expected: upgrade-insecure-requests

Why this matters

Without upgrade-insecure-requests, any HTTP subresource link survives as a mixed-content warning instead of auto-upgrading.

Learn more ▾

Adding `upgrade-insecure-requests` to your CSP turns every http:// subresource fetch into https:// at the browser layer. One-line defense against accidental mixed content from legacy links or third-party widgets.

Source: MDN CSP

Parsed Policy

frame-ancestors 'self'www.united-internet-media.deadimg.uimserv.netadvideo.uimserv.net

B

Cookie Security

3 cookies analyzed, 5 checks passed

REVIEW

3 cookies analyzed, 5 checks passed

Cookie 'ui_cid' has the Secure flag

Cookie 'ui_cid' has the HttpOnly flag

Cookie 'ui_cid' has no SameSite attribute

Without an explicit SameSite attribute, browser default behavior varies. Set SameSite=Lax or Strict.

Cookie 'allin_segment' has the Secure flag

Cookie 'allin_segment' is missing the HttpOnly flag

Without HttpOnly, this cookie can be accessed by JavaScript, making it vulnerable to XSS-based theft.

Cookie 'allin_segment' has SameSite=Lax

Cookie 'euconsent-bypass' has the Secure flag

Cookie 'euconsent-bypass' is missing the HttpOnly flag

Without HttpOnly, this cookie can be accessed by JavaScript, making it vulnerable to XSS-based theft.

Cookie 'euconsent-bypass' has no SameSite attribute

Without an explicit SameSite attribute, browser default behavior varies. Set SameSite=Lax or Strict.

3 cookies analyzed 4 warnings

Name	Secure	HttpOnly	SameSite	Size	Issues
ui_cid	✓	✓	—	12 B	1
allin_segment	✓	✗	Lax	14 B	1
euconsent-bypass	✓	✗	—	26 B	2

B

Permissions-Policy

4 directives, 1 missing

REVIEW

4 directives, 1 missing

microphone=() — blocked for all origins

camera=() — blocked for all origins

geolocation=() — blocked for all origins

usb=() — blocked for all origins

payment not restricted

Consider adding payment=() to block payment access from embedded content.

Raw Header

microphone=() camera=() geolocation=() usb=()

Feature Permissions

Blocked Self Only Unrestricted Not Set

microphone Blocked

camera Blocked

geolocation Blocked

usb Blocked

payment Not Set

B

CORS Configuration

No CORS headers

REVIEW

No CORS headers

No CORS headers present — secure default

CORS Configuration ✓ Secure

No CORS headers detected.

Cross-origin requests are blocked by browser same-origin policy.

Origin reflection test

Some servers mirror the request Origin header, which can be exploited. Test manually:

curl -sI -H "Origin: https://evil.com" <url> | grep -i access-control

B

security.txt

Published with 1 contact(s)

REVIEW

security.txt

Contact: mailto:report@bugbounty.web.de

A

Security Headers

8 of 10 headers properly configured

PASS

8 of 10 headers properly configured

Strict-Transport-Security is properly configured

Got: max-age=31536000; includeSubdomains; preload

X-Content-Type-Options is properly configured

Got: nosniff

X-Frame-Options is properly configured

Got: DENY

Referrer-Policy is properly configured

Got: strict-origin-when-cross-origin

Permissions-Policy is set

Got: microphone=(), camera=(), geolocation=(), usb=()

Content-Security-Policy is present

Got: frame-ancestors 'self' www.united-internet-media.de adimg.uimserv.net advideo.ui…

Cross-Origin-Opener-Policy header is missing

COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'.

Expected: same-origin

Cross-Origin-Embedder-Policy header is missing

COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers.

Expected: require-corp

X-Powered-By header is not present

Server header is present without version info

Got: Apache

COOP isolates your browsing context, preventing cross-origin side-channel attacks. Set to 'same-origin'.

Expected: same-origin

Why this matters

COOP isolates your top-level browsing context from cross-origin windows — without it, popup-based side-channel attacks remain possible.

Learn more ▾

Cross-Origin-Opener-Policy: same-origin prevents cross-origin pages from sharing a browsing-context group with yours. This blocks cross-window references that enable Spectre-style timing attacks and tab-nabbing. Required if you want to enable SharedArrayBuffer.

Source: MDN / web.dev

COEP prevents loading cross-origin resources without explicit permission. Required for SharedArrayBuffer and high-resolution timers.

Expected: require-corp

Why this matters

COEP enforces that all embedded resources opt-in to cross-origin embedding — required for cross-origin isolation features.

Learn more ▾

Cross-Origin-Embedder-Policy: require-corp ensures every embedded resource (script, iframe, image) explicitly allows being loaded cross-origin. Combined with COOP, this enables the cross-origin-isolated context that unlocks SharedArrayBuffer, high-resolution timers, and other powerful APIs.

Source: MDN / web.dev

A+

TLS & Certificates

TLS 1.3, 7 checks passed

PASS

TLS 1.3, 7 checks passed

TLS 1.3 is used

Got: TLS 1.3

Strong cipher suite is used

Got: TLS_AES_256_GCM_SHA384

HTTP/2 is not negotiated

HTTP/2 provides multiplexing and header compression for better performance.

Got: http/1.1

Certificate is valid (expires in 155 days)

Got: 2026-09-24T23:59:59Z

Certificate chain has 2 certificates

Certificate uses modern signature algorithm

Got: SHA256-RSA

Certificate covers 2 domain(s)

Got: *.web.de, web.de

Certificate is issued by a trusted CA

Got: CN=Telekom Security ServerID OV Class 2 CA,O=Deutsche Telekom Security GmbH,C=DE

HTTP/2 provides multiplexing and header compression for better performance.

Why this matters

HTTP/1.1 forces the browser to make sequential requests, multiplying latency on every page.

Learn more ▾

HTTP/2 (and HTTP/3) multiplex many requests over a single connection, eliminating head-of-line blocking. HTTP/1.1 forces the browser to either queue requests or open many parallel connections — both worse. Most modern web servers support HTTP/2 with one config line.

Source: MDN Web Docs

Connection

Protocol

TLS 1.3

Cipher Suite

TLS_AES_256_GCM_SHA384

HTTP Version

HTTP/1.1

Certificate Chain

Leaf Certificate

Subject CN=*.web.de,O=1&1 Mail & Media GmbH,L=Montabaur,ST=Rheinland-Pfalz,C=DEIssuer CN=Telekom Security ServerID OV Class 2 CA,O=Deutsche Telekom Security GmbH,C=DEValid 2026-03-11T08:50:30Z → 2026-09-24T23:59:59ZExpires in 155 days SANs *.web.de, web.deSignature SHA256-RSASerial 11c9326096f0ee057a4be17e926b1400

Intermediate (CA Certificate)

Subject CN=Telekom Security ServerID OV Class 2 CA,O=Deutsche Telekom Security GmbH,C=DEIssuer CN=T-TeleSec GlobalRoot Class 2,OU=T-Systems Trust Center,O=T-Systems Enterprise Services GmbH,C=DEValid 2022-08-02T09:16:44Z → 2027-08-02T23:59:59ZExpires in 467 days Signature SHA256-RSASerial e5d298915c40431a4e1c4ca488b8ea3

A+

JS Library Vulnerabilities

No known vulnerabilities

PASS

No known vulnerabilities

No known JavaScript library vulnerabilities detected

No known JavaScript library vulnerabilities detected.

A+

Information Leakage

No exposures

PASS

No exposures

security.txt is present — good practice

No sensitive files exposed

No sensitive files exposed — all paths returned 404.

Path	Status	Category	Risk
/.git/HEAD	✓ Not found	Version Control	—
/.git/config	✓ Not found	Version Control	—
/.svn/entries	✓ Not found	Version Control	—
/.env	✓ Not found	Configuration	—
/.env.local	✓ Not found	Configuration	—
/.env.production	✓ Not found	Configuration	—
/wp-config.php	✓ Not found	Configuration	—
/.htaccess	✓ Not found	Configuration	—
/phpinfo.php	✓ Not found	Debug	—
/server-status	✓ Not found	Debug	—
/server-info	✓ Not found	Debug	—
/.well-known/security.txt	✗ Exposed	Security Policy	Info

A

Email Security

DMARC: quarantine

PASS

DMARC: quarantine

DMARC policy is quarantine — good protection

DMARC

Policy quarantine — good protection Record v=DMARC1; p=quarantine; rua=mailto:dmarcreport@web.de

A

Transport Security

HTTP/3, HSTS, and TLS version analysis

PASS

HTTP/3, HSTS, and TLS version analysis

HTTP/3 (QUIC) not advertised

HTTP/3 eliminates head-of-line blocking. If your CDN supports it, consider enabling it.

HSTS enabled (includeSubDomains, preload)

HSTS preload enabled

TLS 1.3 in use (fastest handshake, 1-RTT)