Skip to content
https://deepmind.google

Security

· 12 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.
SCORE
72
GRADE
C
FIX
4
REVIEW
3
PASS
5
INFO
0
Checks
12
5 PASS 3 REVIEW 4 FIX
F
Subresource Integrity
Action
0 of 8 external resources have SRI
FIX
0 of 8 external resources have SRI
Warning::
External link from fonts.googleapis.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://fonts.googleapis.com/css2?family=Google+Sans+Flex:opsz,wght@6..144,1..1000&display=swap
Warning::
External link from fonts.googleapis.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://fonts.googleapis.com/css2?family=Google+Symbols:opsz,wght,FILL,GRAD,ROND@48,100..300,0..1,0,100&display=swap
Warning::
External link from www.gstatic.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.gstatic.com/glue/cookienotificationbar/cookienotificationbar.min.css
Warning::
External script from www.youtube.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.youtube.com/s/player/218d9d92/www-widgetapi.vflset/www-widgetapi.js
Warning::
External script from www.youtube.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.youtube.com/iframe_api
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-LS8HVHCNQ0&cx=c&gtm=4e64h1
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/gtm.js?id=GTM-NRDHXJGK
Warning::
External script from www.gstatic.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.gstatic.com/glue/cookienotificationbar/cookienotificationbar.min.js
SRI Coverage 0 / 8 of external resources have integrity hashes
TagDomainIntegrity
<link>fonts.googleapis.com✗ Missing
<link>fonts.googleapis.com✗ Missing
<link>www.gstatic.com✗ Missing
<script>www.youtube.com✗ Missing
<script>www.youtube.com✗ Missing
<script>www.googletagmanager.com✗ Missing
<script>www.googletagmanager.com✗ Missing
<script>www.gstatic.com✗ Missing
D
Email Security
Action
DMARC: none
FIX
DMARC: none
Warning::
DMARC policy is none — monitoring only
This only monitors, it doesn't block spoofed emails. Change to p=quarantine or p=reject.
DMARC
Policy none — monitoring only, does not block spoofing Record v=DMARC1; p=none; rua=mailto:mailauth-reports@google.com

This only monitors, it doesn't block spoofed emails. Change to p=quarantine or p=reject.

Why this matters

DMARC p=none collects reports but doesn't actually block spoofed mail — phishing emails still reach inboxes.

Learn more ▾

DMARC's three policies are p=none (monitor only), p=quarantine (mark as spam), and p=reject (bounce). Most domains start at p=none to gather data, but stay there forever, leaving spoofers unblocked. After 30 days of clean DMARC reports, graduate to p=quarantine, then p=reject.

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=()
D
security.txt
Action
No /.well-known/security.txt published
FIX

security.txt

No security.txt found at /.well-known/security.txt

C
Security Headers
Action
5 of 10 headers properly configured
REVIEW
5 of 10 headers properly configured
Warning::
HSTS max-age is too short (2592000s, should be ≥ 31536000s)
A short max-age leaves a window for downgrade attacks. Set max-age to at least 31536000 (1 year).
Got: max-age=2592000; includeSubdomains Expected: max-age=31536000; includeSubDomains
Info::
X-Content-Type-Options is properly configured
Got: nosniff
Info::
X-Frame-Options is properly configured
Got: DENY
Warning::
Referrer-Policy header is missing
Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter.
Expected: 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: require-trusted-types-for 'script'; base-uri 'none'; default-src 'self' *.gstati…
Warning::
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
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: Google Frontend

A short max-age leaves a window for downgrade attacks. Set max-age to at least 31536000 (1 year).

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

Short HSTS max-age leaves a downgrade-attack window every time the cache expires — set ≥ 1 year.

Learn more ▾

max-age below 31536000 (1 year) is below industry recommendation. The browser forgets the HSTS policy and re-exposes first-visit downgrade attacks. Set to 63072000 (2 years) and add `includeSubDomains; preload` to qualify for the HSTS preload list.

Source: RFC 6797 / hstspreload.org

Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter.

Expected: strict-origin-when-cross-origin
Why this matters

Default browser behavior leaks full URLs (including query params and tokens) to every third-party resource — set a strict policy.

Learn more ▾

Without a Referrer-Policy header, browsers send the full referring URL with images, scripts, and fonts loaded from third-party origins. URLs containing tokens, user IDs, or session params end up in third-party logs. Set `Referrer-Policy: strict-origin-when-cross-origin` (or stricter) to limit leakage.

Source: MDN / W3C

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

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

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
Transport Security
HTTP/3, HSTS, and TLS version analysis
REVIEW
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.
Warning::
HSTS max-age is short: 30 days
HSTS max-age should be at least 1 year (31536000 seconds).
Got: max-age=2592000 (expected 31536000)
Info::
TLS 1.3 in use (fastest handshake, 1-RTT)
A
Content Security Policy
7 of 10 CSP checks passed
PASS
7 of 10 CSP checks passed
Info::
Raw CSP policy
Got: require-trusted-types-for 'script'; base-uri 'none'; default-src 'self' *.gstatic.com https://storage.googleapis.com/gdm-deepmind-com-prod-public/; connect-src 'self' *.google-analytics.com *.gstatic.com services.google.com auditrecording-pa.googleapis.com *.google.com *.googlesyndication.com *.googletagmanager.com *.g.doubleclick.net *.googleadservices.com https://storage.googleapis.com/gdm-deepmind-com-prod-public/; font-src 'self' https://fonts.gstatic.com https://fonts.googleapis.com data: https://storage.googleapis.com/gdm-deepmind-com-prod-public/; frame-ancestors 'self' https://*.appspot.com https://*.corp.google.com; frame-src 'self' www.youtube.com https://storage.googleapis.com/deepmind-media/ ai.google deepmind.google accounts.google.com *.googletagmanager.com https://storage.googleapis.com/gdm-deepmind-com-prod-public/; img-src 'self' data: *.googleusercontent.com *.gstatic.com *.googletagmanager.com *.i.ytimg.com i.ytimg.com *.google.com *.googlesyndication.com *.googleadservices.com *.g.doubleclick.net https://storage.googleapis.com/gdm-deepmind-com-prod-public/; manifest-src 'self' https://storage.googleapis.com/gdm-deepmind-com-prod-public/; media-src 'self' *.googlevideo.com https://storage.googleapis.com/gdm-deepmind-com-prod-public/; style-src 'self' *.google.com *.gstatic.com https://fonts.googleapis.com 'sha256-wiM0pJPQ8Fbww0RrA8TrqToZf88RgzY0dkgHSw/AJxI=' https://storage.googleapis.com/gdm-deepmind-com-prod-public/; script-src 'self' 'strict-dynamic' *.google-analytics.com *.google.com *.gstatic.com *.youtube.com *.googletagmanager.com *.googleadservices.com 'sha256-KWKf7P1AQmtmfSwajTn6BTnyOVD+CRkaq48eFjNTr74=' 'sha256-hWJZtPTjFEm92PH5aseBNErCet/WJc75EraxvnC2Lf0=' 'sha256-Obe3Ppj/0w949V//cT2CsmvXIC9wt0ow4nrbtMKYpyM=' 'sha256-HbSxvI5lVq2tCH+/S2mS/78EDbrvLekQ7A2p7pZqiUI=' 'sha256-7Omk6HodJ937TIBzL2oiq8sWI001zV/8O35FR5AZ1Hg=' 'sha256-xqxppExHC08VdbK0iJAVDjMT22NLnNltYheGFMz3qXw=' 'sha256-SXvE5Lx8M4DFOz1yd8Wl2fAuQK0Y2QRMbgFEzEh9n9k=' 'sha256-ccU4Xbu1CoSyC+1IB/ab2zsw8sNzKrUZnTWydCWjsfk=' https://storage.googleapis.com/gdm-deepmind-com-prod-public/
Info::
default-src directive is set
Got: default-src 'self' *.gstatic.com https://storage.googleapis.com/gdm-deepmind-com-prod-public/
Info::
No 'unsafe-inline' in script source
Info::
No 'unsafe-eval' in script source
Info::
No wildcard in script source
Info::
object-src falls back to default-src
Info::
base-uri is properly restricted
Got: base-uri 'none'
Info::
frame-ancestors directive is set
Got: frame-ancestors 'self' https://*.appspot.com https://*.corp.google.com
Warning::
form-action directive is missing
form-action restricts where forms can submit data, preventing form hijacking.
Expected: form-action 'self'
Info::
upgrade-insecure-requests is not set
This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content.
Expected: upgrade-insecure-requests

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

require-trusted-types-for 'script'
base-uri 'none'
default-src 'self'*.gstatic.comhttps://storage.googleapis.com/gdm-deepmind-com-prod-public/
connect-src 'self'*.google-analytics.com*.gstatic.comservices.google.comauditrecording-pa.googleapis.com*.google.com*.googlesyndication.com*.googletagmanager.com*.g.doubleclick.net*.googleadservices.comhttps://storage.googleapis.com/gdm-deepmind-com-prod-public/
font-src 'self'https://fonts.gstatic.comhttps://fonts.googleapis.comdata:https://storage.googleapis.com/gdm-deepmind-com-prod-public/
frame-ancestors 'self'https://*.appspot.comhttps://*.corp.google.com
frame-src 'self'www.youtube.comhttps://storage.googleapis.com/deepmind-media/ai.googledeepmind.googleaccounts.google.com*.googletagmanager.comhttps://storage.googleapis.com/gdm-deepmind-com-prod-public/
img-src 'self'data:*.googleusercontent.com*.gstatic.com*.googletagmanager.com*.i.ytimg.comi.ytimg.com*.google.com*.googlesyndication.com*.googleadservices.com*.g.doubleclick.nethttps://storage.googleapis.com/gdm-deepmind-com-prod-public/
manifest-src 'self'https://storage.googleapis.com/gdm-deepmind-com-prod-public/
media-src 'self'*.googlevideo.comhttps://storage.googleapis.com/gdm-deepmind-com-prod-public/
style-src 'self'*.google.com*.gstatic.comhttps://fonts.googleapis.com'sha256-wiM0pJPQ8Fbww0RrA8TrqToZf88RgzY0dkgHSw/AJxI='https://storage.googleapis.com/gdm-deepmind-com-prod-public/
script-src 'self''strict-dynamic'*.google-analytics.com*.google.com*.gstatic.com*.youtube.com*.googletagmanager.com*.googleadservices.com'sha256-KWKf7P1AQmtmfSwajTn6BTnyOVD+CRkaq48eFjNTr74=''sha256-hWJZtPTjFEm92PH5aseBNErCet/WJc75EraxvnC2Lf0=''sha256-Obe3Ppj/0w949V//cT2CsmvXIC9wt0ow4nrbtMKYpyM=''sha256-HbSxvI5lVq2tCH+/S2mS/78EDbrvLekQ7A2p7pZqiUI=''sha256-7Omk6HodJ937TIBzL2oiq8sWI001zV/8O35FR5AZ1Hg=''sha256-xqxppExHC08VdbK0iJAVDjMT22NLnNltYheGFMz3qXw=''sha256-SXvE5Lx8M4DFOz1yd8Wl2fAuQK0Y2QRMbgFEzEh9n9k=''sha256-ccU4Xbu1CoSyC+1IB/ab2zsw8sNzKrUZnTWydCWjsfk='https://storage.googleapis.com/gdm-deepmind-com-prod-public/
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 48 days)
Got: 2026-06-09T08:55:58Z
Info::
Certificate chain has 3 certificates
Info::
Certificate uses modern signature algorithm
Got: SHA256-RSA
Info::
Certificate covers 1 domain(s)
Got: deepmind.google
Info::
Certificate is issued by a trusted CA
Got: CN=WR3,O=Google Trust Services,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=deepmind.googleIssuer CN=WR3,O=Google Trust Services,C=USValid 2026-03-11T08:05:07Z → 2026-06-09T08:55:58ZExpires in 48 days SANs deepmind.googleSignature SHA256-RSASerial db552778d6f96dff09ecb4574505499b
Intermediate (CA Certificate)
Subject CN=WR3,O=Google Trust Services,C=USIssuer CN=GTS Root R1,O=Google Trust Services LLC,C=USValid 2023-12-13T09:00:00Z → 2029-02-20T14:00:00ZExpires in 1035 days Signature SHA256-RSASerial 7ff005a91568d63abc22861684aa4b5a
Intermediate (CA Certificate)
Subject CN=GTS Root R1,O=Google Trust Services LLC,C=USIssuer CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BEValid 2020-06-19T00:00:42Z → 2028-01-28T00:00:42ZExpires in 645 days Signature SHA256-RSASerial 77bd0d6cdb36f91aea210fc4f058d30d
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::
No security.txt found
Consider adding a security.txt at /.well-known/security.txt.
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✓ Not foundSecurity Policy—
All checks on this page are automated. Results are estimates - run targeted manual reviews when the score affects a release decision.

Send Feedback