Security - https://app.exonore.fr BeaverCheck Audit

F

Empty Page Detection

Action

1 empty-page signal(s) detected -- page may be a placeholder or have content-rendering bugs

FIX

1 empty-page signal(s) detected -- page may be a placeholder or have content-rendering bugs

Unrendered Mustache/Handlebars/Vue template syntax visible in page body

The page body contains what appears to be unrendered template syntax (`{{nom}}`). The template engine never substituted these placeholders with real values -- the user sees raw `{{name}}` / `${value}` style strings. This usually means a server-side rendering bug, a missing variable in the rendering context, or a deploy that shipped without running the template build step.

Got: {{nom}}

D

Permissions-Policy Granularity

Action

30% high-risk feature coverage (3/10)

FIX

30% high-risk feature coverage (3/10)

Permissions-Policy covers 3/10 high-risk features (30%)

The Permissions-Policy header explicitly declares policies for 3/10 high-risk features. Covered: camera, microphone, geolocation Not declared (default-allow): payment, usb, serial, midi, accelerometer, gyroscope, magnetometer The non-declared features fall back to their spec-default policy (usually `self`), which means an XSS-injected or compromised iframe could request them. For features the page genuinely doesn't use, declare `feature=()` to fully close them.

Got: 30% (3/10)

D

Source Map Exposure

Action

2 publicly-accessible source map(s) -- full source code leaked

FIX

2 publicly-accessible source map(s) -- full source code leaked

2 publicly-accessible JavaScript source map(s)

Source maps (.js.map files) reveal the original source code -- variable names, comments, file structure, and sometimes secrets that were stripped from the bundled output. They're shipped to production by mistake almost universally; the standard fix is a build-tool config flag (Webpack: `devtool: false` or `'hidden-source-map'`; Vite: `build.sourcemap: false`; Next.js: `productionBrowserSourceMaps: false`). Once removed, audit your CDN/edge cache to evict any previously-cached .map URLs. Sample accessible URLs: https://app.exonore.fr/events.js.map, https://app.exonore.fr/script.js.map.

F

Email Security

Action

no DMARC, no SPF

FIX

no DMARC, no SPF

No DMARC record found

Without DMARC, email receivers have no policy for handling authentication failures. Add a TXT record at _dmarc.<domain> starting with v=DMARC1.

No SPF record found

Without SPF (Sender Policy Framework), receivers can't tell which servers are authorized to send mail for your domain. Add a TXT record at the apex starting with v=spf1, ending in -all.

No DKIM detected via common selectors

DKIM signs outbound mail to prove origin. We probed common selectors (default, google, selector1, etc.) without finding a record. If you use a non-standard selector, this is a false negative.

MTA-STS not configured

MTA-STS forces inbound mail to use TLS, preventing downgrade attacks. Requires both a TXT record at _mta-sts.<domain> and a policy file at https://mta-sts.<domain>/.well-known/mta-sts.txt.

TLS-RPT not configured

TLS-RPT (RFC 8460) lets MTAs report TLS-handshake failures, so you can detect and fix MTA-STS misconfigurations. Add a TXT record at _smtp._tls.<domain>.

BIMI not configured

BIMI (Brand Indicators for Message Identification) lets supporting clients (Gmail, Apple Mail, Yahoo) display your verified logo next to your messages. Optional but raises trust signals. Requires DMARC at p=quarantine or p=reject to be honored.

DMARC

No DMARC record found

Without DMARC, email receivers have no policy for handling authentication failures from your domain.

Without DMARC, email receivers have no policy for handling authentication failures. Add a TXT record at _dmarc.<domain> starting with v=DMARC1.

Why this matters

Without DMARC, anyone can send phishing emails using your domain name.

Learn more ▾

DMARC tells receiving mail servers what to do with email that fails SPF/DKIM checks for your domain. With a strict 'p=reject' policy, spoofed emails get bounced; without it they reach the inbox. Domains used in phishing campaigns lose deliverability and brand trust fast.

Source: DMARC.org / NIST

Without SPF (Sender Policy Framework), receivers can't tell which servers are authorized to send mail for your domain. Add a TXT record at the apex starting with v=spf1, ending in -all.

Why this matters

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

DKIM signs outbound mail to prove origin. We probed common selectors (default, google, selector1, etc.) without finding a record. If you use a non-standard selector, this is a false negative.

Why this matters

No DKIM signature on outbound mail — receivers can't cryptographically prove the message came from your domain.

Learn more ▾

DKIM signs outbound mail with a private key whose public half lives in DNS at <selector>._domainkey.<domain>. Without DKIM, DMARC alone can't tell legitimate mail from spoofs, and large mailbox providers (Gmail, Yahoo) increasingly require DKIM for inbox placement. Note: this check probes a curated list of common selectors; non-standard selectors produce a false negative.

Source: RFC 6376 / Google + Yahoo 2024 sender requirements

MTA-STS forces inbound mail to use TLS, preventing downgrade attacks. Requires both a TXT record at _mta-sts.<domain> and a policy file at https://mta-sts.<domain>/.well-known/mta-sts.txt.

Why this matters

Without MTA-STS, inbound mail can be silently downgraded to plain SMTP by a network attacker.

Learn more ▾

MTA-STS (RFC 8461) tells sending mail servers to use TLS and to refuse delivery if TLS fails. Requires both a TXT record at _mta-sts.<domain> AND a policy file at https://mta-sts.<domain>/.well-known/mta-sts.txt. Without it, an active attacker on the network path can strip STARTTLS and read the email in plaintext.

Source: RFC 8461

TLS-RPT (RFC 8460) lets MTAs report TLS-handshake failures, so you can detect and fix MTA-STS misconfigurations. Add a TXT record at _smtp._tls.<domain>.

Why this matters

Without TLS-RPT, you have no visibility into inbound TLS failures — MTA-STS misconfigurations stay hidden until users complain.

Learn more ▾

TLS-RPT (RFC 8460) is the feedback channel for MTA-STS: senders post aggregate reports of TLS-handshake failures to the URI in your _smtp._tls TXT record. Without it, an MTA-STS misconfiguration silently rejects mail and you find out only when someone notices missing email.

Source: RFC 8460

BIMI (Brand Indicators for Message Identification) lets supporting clients (Gmail, Apple Mail, Yahoo) display your verified logo next to your messages. Optional but raises trust signals. Requires DMARC at p=quarantine or p=reject to be honored.

Why this matters

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

B

security.txt

Vulnerability disclosure policy

REVIEW

Vulnerability disclosure policy

security.txt found

Got: https://app.exonore.fr/.well-known/security.txt

security.txt: Missing required 'Contact' field

security.txt: Missing required 'Expires' field (RFC 9116)

security.txt

B

Trusted Types (XSS Sink Hardening)

Trusted Types not enabled

REVIEW

Trusted Types not enabled

Trusted Types (CSP3) is a Chrome 83+ defense that requires DOM-XSS sinks (innerHTML, document.write, eval, ...) to receive a typed-and-sanitized value rather than a raw string. Adding `Content-Security-Policy: require-trusted-types-for 'script'; trusted-types default` neutralizes most DOM-XSS even when a payload reaches a sink. Adoption is currently ~0.1% of pages so this is informational; a roll-out usually starts in report-only mode.

B

Auth Security

4 auth-security finding(s) on the login page

REVIEW

4 auth-security finding(s) on the login page

Login page detected

The page contains a `type=password` input and at least one identifier field (username / email). Auth-security findings below evaluate the page's hardening posture.

Login form does not contain a recognizable CSRF token

Standard frameworks emit CSRF tokens as a hidden input named `_csrf`, `csrf_token`, `csrfmiddlewaretoken` (Django), `authenticity_token` (Rails), or `__RequestVerificationToken` (ASP.NET). None of those were found. Possibilities: (1) the form posts to an API that uses a custom header or SameSite cookie reliance for CSRF -- legitimate but not visible from this scan, (2) the form is genuinely missing CSRF protection, which would let an attacker submit logins from another origin via a hidden POST. Verify the auth flow has SOME CSRF defense.

CAPTCHA detected on page (Cloudflare Turnstile)

A CAPTCHA / bot-protection widget is loaded on the page, which adds anti-credential-stuffing protection at the cost of UX friction. Modern alternatives (Cloudflare Turnstile, Apple's Private Access Tokens) are less intrusive than reCAPTCHA v2's checkboxes.

No password-reset link found on the login page

Login pages should link to a password-reset flow (typically /forgot, /reset, or a 'Forgot password?' link). Absence usually means the reset flow lives elsewhere on the site (separately reachable), but if it's truly missing, users locked out of accounts have no self-service recovery path.

B

Subresource Integrity

4 of 5 external resources have SRI

REVIEW

4 of 5 external resources have SRI

External script from challenges.cloudflare.com lacks integrity attribute

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

Got: https://challenges.cloudflare.com/turnstile/v0/api.js?render=explicit&onload=onTurnstileApiLoad

script from cdn.jsdelivr.net has SRI protection

script from cdnjs.cloudflare.com has SRI protection

SRI Coverage 4 / 5 of external resources have integrity hashes

Tag	Domain	Integrity
<script>	challenges.cloudflare.com	✗ Missing
<script>	cdn.jsdelivr.net	✓ Protected
<script>	cdn.jsdelivr.net	✓ Protected
<script>	cdnjs.cloudflare.com	✓ Protected
<script>	cdnjs.cloudflare.com	✓ Protected

B

API Surface

1 OpenAPI/Swagger spec exposed

REVIEW

1 OpenAPI/Swagger spec exposed

OpenAPI / Swagger spec exposed at /openapi.json

An openly-accessible OpenAPI / Swagger spec hands attackers the complete endpoint catalog: every path, parameter, request body, and response shape. Internal-only APIs should restrict the spec to authenticated developers; public APIs should accept the disclosure as documentation. Either is a deliberate choice -- the warning surfaces the choice rather than dictating it.

B

Permissions-Policy

3 directives, 2 missing

REVIEW

3 directives, 2 missing

camera=() — blocked for all origins

microphone=() — blocked for all origins

geolocation=() — blocked for all origins

payment not restricted

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

usb not restricted

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

Raw Header

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

Feature Permissions

Blocked Self Only Unrestricted Not Set

camera Blocked

microphone Blocked

geolocation Blocked

payment Not Set

usb 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

A+

Security Headers

10 of 10 headers properly configured

PASS

10 of 10 headers properly configured

HSTS is enabled with preload

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: no-referrer

Permissions-Policy is set

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

Content-Security-Policy is present

Got: default-src 'none'; manifest-src 'self'; script-src 'self' https://cdn.jsdelivr.…

Cross-Origin-Opener-Policy is properly configured

Got: same-origin

Cross-Origin-Embedder-Policy is set

Got: credentialless

X-Powered-By header is not present

Server header is present without version info

Got: cloudflare

Domain is in the Chrome HSTS preload list (status: preloaded)

Got: preloaded

A+

Content Security Policy

8 of 10 CSP checks passed

PASS

8 of 10 CSP checks passed

Raw CSP policy

Got: default-src 'none'; manifest-src 'self'; script-src 'self' https://cdn.jsdelivr.net https://cdnjs.cloudflare.com https://challenges.cloudflare.com; style-src 'self'; font-src 'self'; img-src 'self' data: blob: https:; connect-src 'self' https://api.exonore.fr https://challenges.cloudflare.com https://cdn.jsdelivr.net https://cdnjs.cloudflare.com; frame-src https://challenges.cloudflare.com; frame-ancestors 'none'; object-src 'none'; base-uri 'self'; form-action 'self';

default-src directive is set

Got: default-src 'none'

No 'unsafe-inline' in script source

No 'unsafe-eval' in script source

No wildcard in script source

object-src is set to 'none'

Got: object-src 'none'

base-uri is properly restricted

Got: base-uri 'self'

frame-ancestors directive is set

Got: frame-ancestors 'none'

form-action directive is set

Got: form-action 'self'

upgrade-insecure-requests is not set

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

Expected: upgrade-insecure-requests

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

default-src 'none'

manifest-src 'self'

script-src 'self'https://cdn.jsdelivr.nethttps://cdnjs.cloudflare.comhttps://challenges.cloudflare.com

style-src 'self'

font-src 'self'

img-src 'self'data:blob:https:

connect-src 'self'https://api.exonore.frhttps://challenges.cloudflare.comhttps://cdn.jsdelivr.nethttps://cdnjs.cloudflare.com

frame-src https://challenges.cloudflare.com

frame-ancestors 'none'

object-src 'none'

base-uri 'self'

form-action 'self'

A+

TLS & Certificates

TLS 1.3, 8 checks passed

PASS

TLS 1.3, 8 checks passed

TLS 1.3 is used

Got: TLS 1.3

Strong cipher suite is used

Got: TLS_AES_128_GCM_SHA256

HTTP/2 is negotiated

Got: h2

OCSP stapling not enabled

Without stapling, the browser performs a separate OCSP roundtrip on first connection -- adding latency and leaking the visited host to the CA. Enable OCSP stapling on your TLS server.

Certificate is valid (expires in 60 days)

Got: 2026-12-11T12:16:09Z

Certificate chain has 3 certificates

Certificate uses modern signature algorithm

Got: ECDSA-SHA256

Certificate covers 1 domain(s)

Got: app.exonore.fr

Certificate is issued by a trusted CA

Got: CN=WE1,O=Google Trust Services,C=US

Without stapling, the browser performs a separate OCSP roundtrip on first connection -- adding latency and leaking the visited host to the CA. Enable OCSP stapling on your TLS server.

Why this matters

Without OCSP stapling, every first-time visitor pays an extra OCSP roundtrip — and the CA learns who's visiting your site.

Learn more ▾

OCSP stapling has the server fetch its own revocation status from the CA and attach the signed response to the TLS handshake. Without it, browsers contact the CA directly: extra latency for the user and a privacy leak (the CA sees who connected). Enable ssl_stapling on (nginx) / SSLUseStapling On (Apache) / OCSPStapling = on (Caddy auto-enables).

Source: RFC 6961 / Mozilla Server-Side TLS guide

Connection

Protocol

TLS 1.3

Cipher Suite

TLS_AES_128_GCM_SHA256

HTTP Version

h2 (HTTP/2)

Certificate Chain

Leaf Certificate

Subject CN=app.exonore.frIssuer CN=WE1,O=Google Trust Services,C=USValid 2026-09-12T11:16:13Z → 2026-12-11T12:16:09ZExpires in 60 days SANs app.exonore.frSignature ECDSA-SHA256Serial f89a0322765e23b60e52c46d0bd79979

Intermediate (CA Certificate)

Subject CN=WE1,O=Google Trust Services,C=USIssuer CN=GTS Root R4,O=Google Trust Services LLC,C=USValid 2023-12-13T09:00:00Z → 2029-02-20T14:00:00ZExpires in 862 days Signature ECDSA-SHA384Serial 7ff31977972c224a76155d13b6d685e3

Intermediate (CA Certificate)

Subject CN=GTS Root R4,O=Google Trust Services LLC,C=USIssuer CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BEValid 2023-11-15T03:43:21Z → 2028-01-28T00:00:42ZExpires in 472 days Signature SHA256-RSASerial 7fe530bf331343bedd821610493d8a1b

A+

Cookie Security

No cookies set — no cookie security risks

PASS

No cookies set — no cookie security risks

No cookies detected — no cookie security risks to report.

A+

Cookie Hygiene

No cookies set -- cookie-hygiene check is N/A

PASS

No cookies set -- cookie-hygiene check is N/A

No cookies set

A

WAF / Bot Protection

Cloudflare

PASS

Cloudflare

Cloudflare detected

Detected via: cf-ray: a494c8248d1ef8c9-CDG

Got: Cloudflare

A+

Cross-Origin Tab Safety

All 1 new-tab link(s) carry rel=noopener

PASS

All 1 new-tab link(s) carry rel=noopener

A+

CSP Inline-Style Readiness

No inline style attributes -- strict CSP is feasible

PASS

No inline style attributes -- strict CSP is feasible

No inline style attributes detected

A+

Bot Challenge Detection

Scan reached real page content (no bot-protection interstitial)

PASS

Scan reached real page content (no bot-protection interstitial)

No bot-protection interstitial detected -- the rest of the report reflects the real page

A+

Soft-404 Detection

No soft-404 patterns detected in page title or headings

PASS

No soft-404 patterns detected in page title or headings

A+

Geo-Restriction Detection

No geo-restriction signals detected -- scan reached the page from an allowed region

PASS

No geo-restriction signals detected -- scan reached the page from an allowed region

No geo-restriction detected

A+

Maintenance Mode Detection

No maintenance-mode signals detected -- scan reached a normal page

PASS

No maintenance-mode signals detected -- scan reached a normal page

No maintenance-mode signals detected

A

Subresource Integrity Adoption

80% SRI adoption (4/5 third-party resources)

PASS

80% SRI adoption (4/5 third-party resources)

SRI adoption: 4/5 third-party resources protected (80%)

Of 5 third-party `<script>` / `<link rel=stylesheet>` resources, 4 (80%) declare a Subresource Integrity hash via the `integrity=` attribute. SRI binds the page to the exact bytes of the third-party resource: if the CDN is compromised, attacker-modified bytes won't match the declared hash and the browser refuses to execute the resource. Missing SRI on (first 1 examples): - https://challenges.cloudflare.com/turnstile/v0/api.js?render=explicit&onload=onTurnstileApiLoad Fix: add `integrity="sha384-..."` and `crossorigin="anonymous"` attributes. Generators: srihash.org, or in-browser via `await crypto.subtle.digest('SHA-384', bytes)`. Cache-bust the resource URL when you change versions, since the integrity hash will mismatch with old cached bytes.

Got: 80% (4/5)

A+

CORS Depth

No CORS response headers -- the resource is same-origin-only by browser default

PASS

No CORS response headers -- the resource is same-origin-only by browser default

A+

Referrer-Policy Strictness

Referrer-Policy is `no-referrer` (strictest -- no Referer header sent at all)

PASS

Referrer-Policy is `no-referrer` (strictest -- no Referer header sent at all)

Referrer-Policy: `no-referrer` -- strictest -- no Referer header sent at all

The strictest setting: no `Referer` header is ever sent. Maximum privacy, but breaks referrer-based analytics and any cross-origin auth flow that relies on the Referer header. Use only when the page handles no referrer-dependent flows.

Got: no-referrer

A+

HTML Version Disclosure

No software-version disclosures in HTML

PASS

No software-version disclosures in HTML

A+

Open Redirect Surface

No redirect-shaped query parameters in DOM links

PASS

No redirect-shaped query parameters in DOM links

A+

Subdomain Inventory Exposure

No risky subdomain names in certificate SANs

PASS

No risky subdomain names in certificate SANs

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
/package.json	✓ Not found	dependency-manifest	—
/composer.json	✓ Not found	dependency-manifest	—
/Gemfile	✓ Not found	dependency-manifest	—
/Gemfile.lock	✓ Not found	dependency-manifest	—
/requirements.txt	✓ Not found	dependency-manifest	—
/pom.xml	✓ Not found	dependency-manifest	—
/.gitlab-ci.yml	✓ Not found	ci-config	—
/.travis.yml	✓ Not found	ci-config	—

A+

Transport Security

HTTP/3, HSTS, and TLS version analysis

PASS

HTTP/3, HSTS, and TLS version analysis

HTTP/3 (QUIC) supported

The server advertises HTTP/3 via Alt-Svc for faster connections on mobile networks.

HSTS enabled (includeSubDomains, preload)

HSTS preload enabled

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