Domain History

gestor-autoconsumo.e-redes.pt

Grade A+ · 100/100 · 6/7 security headers present

Security Score

A+

100/ 100

Security Headers

6/ 7

CSP Violations

NoViolations

Issues Found

7Issues

Recommendations

1Available

Security

100 / 100

Excellent security posture with strong CSP protections in place.

Compliance

85 / 100

Mostly compliant but some directives or headers are missing.

Best Practices

100 / 100

Follows CSP best practices with nonces, restrictive defaults, and reporting.

CSP Analysis

Content Security PolicyHIGH

base-uri 'self'; connect-src 'self' https: https://cdn.cookielaw.org https://privacyportal-eu.onetrust.com https://storage.googleapis.com https://www.google.com/recaptcha/api2/clr; default-src 'none'; font-src 'self' https: https://fonts.gstatic.com; form-action 'self'; frame-ancestors 'none'; frame-src 'none' https://www.google.com; img-src 'self' data: https: https://cdn.cookielaw.org https://geolocation.onetrust.com; manifest-src 'self'; media-src 'self' https:; object-src 'none'; script-src 'nonce-1fec3f06e65b00138da691124c96bf134c840b94af9e5a4125078896c4ecc65c' 'self' 'strict-dynamic' https://cdn.cookielaw.org https://www.google.com; style-src 'nonce-1fec3f06e65b00138da691124c96bf134c840b94af9e5a4125078896c4ecc65c' 'self' https://fonts.googleapis.com; upgrade-insecure-requests; worker-src 'self'; report-to https://gestor-autoconsumo.e-redes.pt/report-uri;

Directive Analysis

base-uriLOW

self

connect-srcHIGH

self https: https://cdn.cookielaw.org https://privacyportal-eu.onetrust.com https://storage.googleapis.com https://www.google.com/recaptcha/api2/clr

•CRITICAL: 'https:' in connect-src allows scripts from ANY HTTPS domain

default-srcLOW

none

font-srcHIGH

self https: https://fonts.gstatic.com

•CRITICAL: 'https:' in font-src allows scripts from ANY HTTPS domain

form-actionLOW

self

frame-ancestorsLOW

none

frame-srcLOW

none https://www.google.com

img-srcHIGH

self data: https: https://cdn.cookielaw.org https://geolocation.onetrust.com

•Info: 'data:' URI in img-src

•CRITICAL: 'https:' in img-src allows scripts from ANY HTTPS domain

manifest-srcLOW

self

media-srcHIGH

self https:

•CRITICAL: 'https:' in media-src allows scripts from ANY HTTPS domain

object-srcLOW

none

script-srcLOW

nonce-1fec3f06e65b00138da691124c96bf134c840b94af9e5a4125078896c4ecc65c self strict-dynamic https://cdn.cookielaw.org https://www.google.com

style-srcLOW

nonce-1fec3f06e65b00138da691124c96bf134c840b94af9e5a4125078896c4ecc65c self https://fonts.googleapis.com

upgrade-insecure-requestsLOW

worker-srcLOW

self

report-toLOW

https://gestor-autoconsumo.e-redes.pt/report-uri

Strict-Dynamic Analysis

✓Properly Configured

✓'strict-dynamic' properly configured - allows trusted scripts to load dependencies securely

•Whitelist entries ["https://cdn.cookielaw.org", "https://www.google.com"]... are ignored when strict-dynamic is present (CSP3 behavior)

Security Headers

✗Cross-Origin-Opener-PolicyMissing

Isolates the browsing context to prevent Spectre-type side-channel attacks and cross-origin window manipulation.

How to add it:

nginx

add_header Cross-Origin-Opener-Policy "same-origin" always;

apache

Header always set Cross-Origin-Opener-Policy "same-origin"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set Cross-Origin-Opener-Policy to "same-origin"

✓Permissions-PolicyPresent

geolocation=(self), microphone=()

Restricts which browser features (camera, microphone, geolocation) the page can use, limiting attack surface.

✓Referrer-PolicyPresent

same-origin

Controls how much referrer information is sent with requests, preventing data leaks to third parties.

✓Strict-Transport-SecurityPresent

max-age=31536000; includeSubDomains; preload

Forces browsers to use HTTPS for all future requests, preventing man-in-the-middle attacks and SSL stripping.

✓X-Content-Type-OptionsPresent

nosniff

Prevents browsers from MIME-sniffing responses away from the declared Content-Type, blocking drive-by downloads.

✓X-Frame-OptionsPresent

SAMEORIGIN

Prevents the page from being embedded in iframes, protecting against clickjacking attacks.

✓X-XSS-ProtectionPresent

1; mode=block

Legacy XSS filter for older browsers. Modern browsers use CSP instead. Set to "0" to avoid false positives.

1 recommended security header is missing on gestor-autoconsumo.e-redes.pt.

Issues Found

•CRITICAL: 'https:' in connect-src allows scripts from ANY HTTPS domaincritical
•CRITICAL: 'https:' in font-src allows scripts from ANY HTTPS domaincritical
•CRITICAL: 'https:' in img-src allows scripts from ANY HTTPS domaincritical
•CRITICAL: 'https:' in media-src allows scripts from ANY HTTPS domaincritical
•Info: 'data:' URI in img-srcinfo
•Missing security header: Cross-Origin-Opener-Policymedium
•Whitelist entries ["https://cdn.cookielaw.org", "https://www.google.com"]... are ignored when strict-dynamic is present (CSP3 behavior)medium

Recommendations

→Consider implementing a stricter Content Security Policy

Beyond headers: infrastructure exposure

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