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Security

· 12 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.
SCORE
70
GRADE
C
FIX
3
REVIEW
4
PASS
5
INFO
0
Checks
12
5 PASS 4 REVIEW 3 FIX
F
Subresource Integrity
Action
0 of 3 external resources have SRI
FIX
0 of 3 external resources have SRI
Warning::
External script from www.googletagmanager.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.googletagmanager.com/gtag/js?id=G-MQ7767QQQW&cx=c&gtm=4e6460
Warning::
External script from www.googletagmanager.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //www.googletagmanager.com/gtm.js?id=GTM-MW3R8V&l=dataLayer
Warning::
External script from transcend-cdn.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://transcend-cdn.com/cm/d556c3a1-e57c-4bdf-a490-390a1aebf6dd/airgap.js
SRI Coverage 0 / 3 of external resources have integrity hashes
TagDomainIntegrity
<script>www.googletagmanager.com Missing
<script>www.googletagmanager.com Missing
<script>transcend-cdn.com Missing
F
Email Security
Action
No DMARC
FIX
No DMARC
Warning::
No DMARC record found
Without DMARC, email receivers have no policy for handling authentication failures.
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.

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

D
Permissions-Policy
Action
No header set
FIX
No header set
Warning::
No Permissions-Policy header
Consider adding a Permissions-Policy header to restrict browser feature access from embedded content.

No Permissions-Policy header set.

Without this header, embedded iframes can request access to sensitive device features.

Suggested header
Permissions-Policy: camera=(), microphone=(), geolocation=(), payment=(), usb=()
B
Security Headers
7 of 10 headers properly configured
REVIEW
7 of 10 headers properly configured
Warning::
HSTS is missing includeSubDomains
Without includeSubDomains, subdomains can still be accessed over HTTP.
Got: max-age=31536000 Expected: max-age=31536000; includeSubDomains
Info::
X-Content-Type-Options is properly configured
Got: nosniff
Info::
X-Frame-Options is properly configured
Got: DENY
Info::
Referrer-Policy is properly configured
Got: strict-origin-when-cross-origin
Warning::
Permissions-Policy header is missing
Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features.
Expected: geolocation=(), camera=(), microphone=()
Info::
Content-Security-Policy is present
Got: base-uri 'none'; frame-ancestors 'none'; default-src 'self' *.mozilla.org; objec…
Info::
Cross-Origin-Opener-Policy is properly configured
Got: same-origin
Warning::
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
Info::
X-Powered-By header is not present
Info::
Server header is present without version info
Got: granian

Without includeSubDomains, subdomains can still be accessed over HTTP.

Expected: max-age=31536000; includeSubDomains
Why this matters

Without includeSubDomains, a forgotten dev subdomain over HTTP can set malicious cookies that ride to the apex.

Learn more

HSTS without includeSubDomains protects only the exact domain. Cookies set on a non-HSTS subdomain can ride to the apex via cookie-scope attacks. The fix is one directive append. Verify all subdomains support HTTPS first — adding includeSubDomains to a domain with HTTP-only subdomains breaks them.

Source: RFC 6797

Controls which browser features (camera, microphone, geolocation) are allowed. Set it to restrict unused features.

Expected: geolocation=(), camera=(), microphone=()
Why this matters

Permissions-Policy locks down browser APIs you don't use — without it, every page can request camera/mic/geolocation if XSS lands.

Learn more

By default every page can request the camera, microphone, geolocation, payment APIs, and dozens more. Permissions-Policy turns off the ones you don't need so a future bug can't quietly start using them. It's a defense-in-depth header — one line, big surface reduction.

Source: MDN / W3C

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

C
Content Security Policy
Action
7 of 11 CSP checks passed
REVIEW
7 of 11 CSP checks passed
Info::
Raw CSP policy
Got: base-uri 'none'; frame-ancestors 'none'; default-src 'self' *.mozilla.org; object-src 'none'; media-src 'self' assets.mozilla.net videos.cdn.mozilla.net www.mozilla.org; img-src 'self' blog.mozilla.org data: images.ctfassets.net www.google-analytics.com www.googletagmanager.com www.mozilla.org; script-src 'self' 'unsafe-eval' 'unsafe-inline' cdn.transcend.io js.stripe.com s.ytimg.com tagmanager.google.com transcend-cdn.com www.google-analytics.com www.googletagmanager.com www.mozilla.org www.youtube.com; connect-src 'self' cdn.transcend.io gtm.mozilla.org https://abdri3ttkb.execute-api.us-east-2.amazonaws.com https://accounts.firefox.com/ https://basket.mozilla.org o1069899.ingest.sentry.io o1069899.sentry.io region1.google-analytics.com telemetry.transcend.io telemetry.us.transcend.io transcend-cdn.com www.google-analytics.com www.googletagmanager.com www.mozilla.org/submit/bedrock/; form-action 'self' https://abdri3ttkb.execute-api.us-east-2.amazonaws.com https://accounts.firefox.com/ https://basket.mozilla.org; upgrade-insecure-requests; frame-src 'self' accounts.firefox.com js.stripe.com www.google-analytics.com www.googletagmanager.com www.youtube.com; style-src 'self' 'unsafe-inline' cdn.transcend.io transcend-cdn.com www.mozilla.org; font-src 'self' www.mozilla.org
Info::
default-src directive is set
Got: default-src 'self' *.mozilla.org
Critical::
'unsafe-inline' found in script source
'unsafe-inline' allows inline <script> tags, defeating CSP against XSS. Remove it and use nonces or hashes instead.
Got: script-src 'self' 'unsafe-eval' 'unsafe-inline' cdn.transcend.io js.stripe.com s.ytimg.com tagmanager.google.com transcend-cdn.com www.google-analytics.com www.googletagmanager.com www.mozilla.org www.youtube.com
Critical::
'unsafe-eval' found in script source
'unsafe-eval' allows eval() and similar functions, enabling code injection. Remove it.
Got: script-src 'self' 'unsafe-eval' 'unsafe-inline' cdn.transcend.io js.stripe.com s.ytimg.com tagmanager.google.com transcend-cdn.com www.google-analytics.com www.googletagmanager.com www.mozilla.org www.youtube.com
Info::
No wildcard in script source
Info::
object-src is set to 'none'
Got: object-src 'none'
Info::
base-uri is properly restricted
Got: base-uri 'none'
Info::
frame-ancestors directive is set
Got: frame-ancestors 'none'
Info::
form-action directive is set
Got: form-action 'self' https://abdri3ttkb.execute-api.us-east-2.amazonaws.com https://accounts.firefox.com/ https://basket.mozilla.org
Info::
upgrade-insecure-requests is enabled
Info::
Content-Security-Policy-Report-Only is also set
A report-only policy is active alongside the enforcing policy for monitoring.
Got: base-uri 'none'; frame-ancestors 'none'; default-src 'self' *.mozilla.org; object-src 'none'; media-src 'self' assets.mo…

'unsafe-inline' allows inline <script> tags, defeating CSP against XSS. Remove it and use nonces or hashes instead.

Why this matters

Unsafe value (unsafe-inline, unsafe-eval) in script-src defeats CSP's main protection — XSS injections can execute again.

Learn more

unsafe-inline allows inline <script> tags; unsafe-eval allows eval() and similar. Both are necessary for some legacy code but explicitly dangerous. Migrate to nonces (per-page random tokens) or hashes (per-script SHA-256) instead.

Source: OWASP CSP / MDN

'unsafe-eval' allows eval() and similar functions, enabling code injection. Remove it.

Why this matters

Unsafe value (unsafe-inline, unsafe-eval) in script-src defeats CSP's main protection — XSS injections can execute again.

Learn more

unsafe-inline allows inline <script> tags; unsafe-eval allows eval() and similar. Both are necessary for some legacy code but explicitly dangerous. Migrate to nonces (per-page random tokens) or hashes (per-script SHA-256) instead.

Source: OWASP CSP / MDN

A report-only policy is active alongside the enforcing policy for monitoring.

Why this matters

Running enforcing + Report-Only in parallel lets you test stricter directives safely before promoting them.

Source: MDN CSP

Parsed Policy

base-uri 'none'
frame-ancestors 'none'
default-src 'self'*.mozilla.org
object-src 'none'
media-src 'self'assets.mozilla.netvideos.cdn.mozilla.netwww.mozilla.org
img-src 'self'blog.mozilla.orgdata:images.ctfassets.netwww.google-analytics.comwww.googletagmanager.comwww.mozilla.org
script-src 'self''unsafe-eval''unsafe-inline'cdn.transcend.iojs.stripe.coms.ytimg.comtagmanager.google.comtranscend-cdn.comwww.google-analytics.comwww.googletagmanager.comwww.mozilla.orgwww.youtube.com
connect-src 'self'cdn.transcend.iogtm.mozilla.orghttps://abdri3ttkb.execute-api.us-east-2.amazonaws.comhttps://accounts.firefox.com/https://basket.mozilla.orgo1069899.ingest.sentry.ioo1069899.sentry.ioregion1.google-analytics.comtelemetry.transcend.iotelemetry.us.transcend.iotranscend-cdn.comwww.google-analytics.comwww.googletagmanager.comwww.mozilla.org/submit/bedrock/
form-action 'self'https://abdri3ttkb.execute-api.us-east-2.amazonaws.comhttps://accounts.firefox.com/https://basket.mozilla.org
upgrade-insecure-requests
frame-src 'self'accounts.firefox.comjs.stripe.comwww.google-analytics.comwww.googletagmanager.comwww.youtube.com
style-src 'self''unsafe-inline'cdn.transcend.iotranscend-cdn.comwww.mozilla.org
font-src 'self'www.mozilla.org
B
CORS Configuration
No CORS headers
REVIEW
No CORS headers
Info::
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 0 contact(s)
REVIEW

security.txt

A+
TLS & Certificates
TLS 1.3, 7 checks passed
PASS
TLS 1.3, 7 checks passed
Info::
TLS 1.3 is used
Got: TLS 1.3
Info::
Strong cipher suite is used
Got: TLS_AES_128_GCM_SHA256
Info::
HTTP/2 is not negotiated
HTTP/2 provides multiplexing and header compression for better performance.
Got: http/1.1
Info::
Certificate is valid (expires in 46 days)
Got: 2026-05-24T05:33:09Z
Info::
Certificate chain has 2 certificates
Info::
Certificate uses modern signature algorithm
Got: SHA256-RSA
Info::
Certificate covers 1 domain(s)
Got: www.mozilla.org
Info::
Certificate is issued by a trusted CA
Got: CN=R12,O=Let's Encrypt,C=US

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_128_GCM_SHA256
HTTP Version
HTTP/1.1

Certificate Chain

Leaf Certificate
Subject CN=www.mozilla.orgIssuer CN=R12,O=Let's Encrypt,C=USValid 2026-02-23T05:33:10Z → 2026-05-24T05:33:09ZExpires in 46 days SANs www.mozilla.orgSignature SHA256-RSASerial 5a27cc780b0fc9dc90280417cbde09d9d77
Intermediate (CA Certificate)
Subject CN=R12,O=Let's Encrypt,C=USIssuer CN=ISRG Root X1,O=Internet Security Research Group,C=USValid 2024-03-13T00:00:00Z → 2027-03-12T23:59:59ZExpires in 339 days Signature SHA256-RSASerial c212324b70a9b49171dc40f7e285263c
A+
Cookie Security
No cookies set — no cookie security risks
PASS
No cookies set — no cookie security risks
Info::
No cookies set — no cookie security risks

No cookies detected — no cookie security risks to report.

A+
JS Library Vulnerabilities
No known vulnerabilities
PASS
No known vulnerabilities
Info::
No known JavaScript library vulnerabilities detected

No known JavaScript library vulnerabilities detected.

A+
Information Leakage
No exposures
PASS
No exposures
Info::
security.txt is present — good practice
Info::
No sensitive files exposed

No sensitive files exposed — all paths returned 404.

PathStatusCategoryRisk
/.git/HEAD Not foundVersion Control
/.git/config Not foundVersion Control
/.svn/entries Not foundVersion Control
/.env Not foundConfiguration
/.env.local Not foundConfiguration
/.env.production Not foundConfiguration
/wp-config.php Not foundConfiguration
/.htaccess Not foundConfiguration
/phpinfo.php Not foundDebug
/server-status Not foundDebug
/server-info Not foundDebug
/.well-known/security.txt ExposedSecurity PolicyInfo
A
Transport Security
HTTP/3, HSTS, and TLS version analysis
PASS
HTTP/3, HSTS, and TLS version analysis
Info::
HTTP/3 (QUIC) not advertised
HTTP/3 eliminates head-of-line blocking. If your CDN supports it, consider enabling it.
Info::
HSTS enabled (base policy)
Info::
HSTS missing includeSubDomains
Without includeSubDomains, HSTS only protects the exact domain.
Info::
TLS 1.3 in use (fastest handshake, 1-RTT)
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

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