Security - https://www.stanford.edu BeaverCheck Audit

D

Subresource Integrity

Action

1 of 13 external resources have SRI

FIX

1 of 13 external resources have SRI

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/f4c47414/www-widgetapi.vflset/www-widgetapi.js

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-E08J4Q7DG7&cx=c&_slc=1

External script from www.google-analytics.com lacks integrity attribute

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

Got: https://www.google-analytics.com/analytics.js

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-RBCPHN00S7&cx=c&gtm=4e6411

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-T4N2WTT

External script from connect.facebook.net lacks integrity attribute

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

Got: https://connect.facebook.net/signals/config/1199096620574484?v=2.9.291&r=stable&domain=www.stanford.edu&hme=295b1b33901e14aeab879c0b58f907ef4d5f44fdd19814310771af911c5f6ac8&ex_m=102%2C198%2C147%2C22%2C70%2C71%2C139%2C66%2C65%2C11%2C155%2C88%2C16%2C132%2C124%2C37%2C73%2C76%2C130%2C152%2C157%2C8%2C4%2C5%2C7%2C6%2C3%2C89%2C99%2C158%2C163%2C212%2C60%2C179%2C180%2C53%2C267%2C30%2C72%2C224%2C223%2C222%2C23%2C32%2C101%2C59%2C10%2C61%2C95%2C96%2C97%2C103%2C127%2C31%2C29%2C129%2C126%2C125%2C148%2C74%2C151%2C149%2C150%2C48%2C58%2C120%2C15%2C154%2C43%2C254%2C255%2C253%2C26%2C27%2C28%2C46%2C140%2C75%2C110%2C18%2C20%2C42%2C38%2C40%2C39%2C81%2C90%2C94%2C108%2C138%2C141%2C44%2C109%2C24%2C21%2C116%2C67%2C35%2C143%2C142%2C144%2C135%2C133%2C25%2C34%2C57%2C107%2C153%2C68%2C17%2C145%2C112%2C79%2C64%2C19%2C83%2C84%2C113%2C82%2C33%2C284%2C205%2C194%2C195%2C193%2C287%2C279%2C50%2C206%2C105%2C128%2C78%2C118%2C52%2C45%2C47%2C111%2C117%2C123%2C56%2C62%2C51%2C54%2C98%2C156%2C1%2C121%2C14%2C119%2C12%2C2%2C55%2C91%2C63%2C115%2C87%2C86%2C159%2C160%2C92%2C93%2C9%2C122%2C100%2C49%2C136%2C85%2C77%2C69%2C114%2C104%2C41%2C137%2C0%2C80%2C131%2C134%2C146%2C36%2C106%2C13%2C161

External script from connect.facebook.net lacks integrity attribute

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

Got: https://connect.facebook.net/en_US/fbevents.js

External script from siteimproveanalytics.com lacks integrity attribute

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

Got: //siteimproveanalytics.com/js/siteanalyze_80352.js

External link from fonts.googleapis.com lacks integrity attribute

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

Got: //fonts.googleapis.com/css?family=Open+Sans%3A400%2C300&ver=6.9.1

External script from static.hotjar.com lacks integrity attribute

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

Got: https://static.hotjar.com/c/hotjar-6430056.js?sv=6

script from js-agent.newrelic.com has SRI protection

External script from events.stanford.edu lacks integrity attribute

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

Got: https://events.stanford.edu/widget/view?schools=stanford&days=31&num=4&sponsored=1&container=localist-widget-6803070&template=stanford-4-column-cards

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

SRI Coverage 1 / 13 of external resources have integrity hashes

Tag	Domain	Integrity
<script>	www.youtube.com	✗ Missing
<script>	www.googletagmanager.com	✗ Missing
<script>	www.google-analytics.com	✗ Missing
<script>	www.googletagmanager.com	✗ Missing
<script>	www.googletagmanager.com	✗ Missing
<script>	connect.facebook.net	✗ Missing
<script>	connect.facebook.net	✗ Missing
<script>	siteimproveanalytics.com	✗ Missing
<link>	fonts.googleapis.com	✗ Missing
<script>	static.hotjar.com	✗ Missing
<script>	js-agent.newrelic.com	✓ Protected
<script>	events.stanford.edu	✗ Missing
<script>	www.youtube.com	✗ Missing

F

Email Security

Action

No DMARC

FIX

No DMARC

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

security.txt

Action

No /.well-known/security.txt published

FIX

security.txt

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

C

Content Security Policy

Action

2 of 10 CSP checks passed

REVIEW

2 of 10 CSP checks passed

Raw CSP policy

Got: upgrade-insecure-requests;

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 missing

frame-ancestors controls who can embed your page, preventing clickjacking. Set it to 'self' or 'none'.

Expected: frame-ancestors 'self'

form-action directive is missing

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

Expected: form-action 'self'

upgrade-insecure-requests is enabled

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

frame-ancestors controls who can embed your page, preventing clickjacking. Set it to 'self' or 'none'.

Expected: frame-ancestors 'self'

Why this matters

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

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.

Parsed Policy

upgrade-insecure-requests

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

8 of 10 headers properly configured

PASS

8 of 10 headers properly configured

HSTS is missing includeSubDomains

Without includeSubDomains, subdomains can still be accessed over HTTP.

Got: max-age=63072000 Expected: max-age=31536000; includeSubDomains

X-Content-Type-Options is properly configured

Got: nosniff

X-Frame-Options is properly configured

Got: SAMEORIGIN

Referrer-Policy is properly configured

Got: strict-origin-when-cross-origin

Permissions-Policy is set

Got: accelerometer=(), autoplay=(), camera=(), cross-origin-isolated=(), display-capture=(self), encrypted-media=(), fullscreen=*, geolocation=(self), gyroscope=(), keyboard-map=(), magnetometer=(), microphone=(), midi=(), payment=*, picture-in-picture=*, publickey-credentials-get=(), screen-wake-lock=(), sync-xhr=*, usb=(), xr-spatial-tracking=(), gamepad=(), serial=()

Content-Security-Policy is present

Got: upgrade-insecure-requests;

Cross-Origin-Opener-Policy is set but not 'same-origin'

Got: unsafe-none Expected: same-origin

Cross-Origin-Embedder-Policy is set

Got: unsafe-none; report-to='default'

X-Powered-By header is not present

Server header is present without version info

Got: nginx

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

Expected: same-origin

Why this matters

COOP is set to a less-restrictive value (same-origin-allow-popups or unsafe-none) — partial isolation only.

Learn more ▾

COOP: same-origin is the strictest level. same-origin-allow-popups allows authenticated popup windows back to your origin. unsafe-none is the legacy default (effectively off). Pick the strictest level your app's popup flows tolerate.

Source: MDN COOP

A

TLS & Certificates

TLS 1.2, 7 checks passed

PASS

TLS 1.2, 7 checks passed

TLS 1.2 is used

Got: TLS 1.2

TLS 1.3 is not negotiated

TLS 1.3 offers improved performance and security. Consider enabling it.

Got: TLS 1.2

Strong cipher suite is used

Got: TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256

HTTP/2 is not negotiated

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

Got: http/1.1

Certificate is valid (expires in 11 days)

Got: 2026-04-16T07:48:13Z

Certificate expires soon (11 days remaining)

Renew the certificate before it expires to avoid browser warnings.

Got: 2026-04-16T07:48:13Z

Certificate chain has 2 certificates

Certificate uses modern signature algorithm

Got: SHA256-RSA

Certificate covers 1 domain(s)

Got: www.stanford.edu

Certificate is issued by a trusted CA

Got: CN=Certainly Intermediate R1,O=Certainly,C=US

Renew the certificate before it expires to avoid browser warnings.

Why this matters

Cert expiry within the renewal window — fix now while there's no user impact, instead of after expiry when there's a full outage.

Learn more ▾

Most CAs recommend renewal at 30 days remaining. Inside that window, schedule the renewal immediately and verify auto-renewal is configured if applicable. Don't wait until 7 days; weekend / holiday timing can leave you exposed.

Source: Let's Encrypt / CA renewal best practice

TLS 1.3 offers improved performance and security. Consider enabling it.

Why this matters

TLS 1.3 not in use — connection falls back to 1.2 and pays the extra round-trip.

Learn more ▾

Most clients prefer TLS 1.3 if both sides support it. If your server has TLS 1.3 enabled but it's not being negotiated, check for a downgrade-attack mitigation issue or a misconfigured cipher list. nginx ≥ 1.13.0 and OpenSSL ≥ 1.1.1 support TLS 1.3.

Source: RFC 8446 / Mozilla SSL Config

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 1.2

Cipher Suite

TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305_SHA256

HTTP Version

HTTP/1.1

Certificate Chain

Leaf Certificate

Subject CN=www.stanford.eduIssuer CN=Certainly Intermediate R1,O=Certainly,C=USValid 2026-03-17T07:48:14Z → 2026-04-16T07:48:13ZExpires in 11 days — expiring soon! SANs www.stanford.eduSignature SHA256-RSASerial 7820a04a23a71804afb64dcc3cb18c9a4110

Intermediate (CA Certificate)

Subject CN=Certainly Intermediate R1,O=Certainly,C=USIssuer CN=Starfield Root Certificate Authority - G2,O=Starfield Technologies\, Inc.,L=Scottsdale,ST=Arizona,C=USValid 2022-06-22T00:00:00Z → 2032-06-21T23:59:59ZExpires in 2270 days Signature SHA256-RSASerial 11831cde4cb573e5

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+

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

No security.txt found

Consider adding a security.txt at /.well-known/security.txt.

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	✓ Not found	Security Policy	—

A+

Permissions-Policy

22 directives, 0 missing

PASS

22 directives, 0 missing

accelerometer=() — blocked for all origins

autoplay=() — blocked for all origins

camera=() — blocked for all origins

cross-origin-isolated=() — blocked for all origins

display-capture=(self)

encrypted-media=() — blocked for all origins

fullscreen=*

geolocation=(self)

gyroscope=() — blocked for all origins

keyboard-map=() — blocked for all origins

magnetometer=() — blocked for all origins

microphone=() — blocked for all origins

midi=() — blocked for all origins

payment=*

picture-in-picture=*

publickey-credentials-get=() — blocked for all origins

screen-wake-lock=() — blocked for all origins

sync-xhr=*

usb=() — blocked for all origins

xr-spatial-tracking=() — blocked for all origins

gamepad=() — blocked for all origins

serial=() — blocked for all origins

Raw Header

accelerometer=() autoplay=() camera=() cross-origin-isolated=() display-capture=(self) encrypted-media=() fullscreen=* geolocation=(self) gyroscope=() keyboard-map=() magnetometer=() microphone=() midi=() payment=* picture-in-picture=* publickey-credentials-get=() screen-wake-lock=() sync-xhr=* usb=() xr-spatial-tracking=() gamepad=() serial=()

Feature Permissions

Blocked Self Only Unrestricted Not Set

accelerometer Blocked

autoplay Blocked

camera Blocked

cross-origin-isolated Blocked

display-capture Self Only

encrypted-media Blocked

fullscreen Unrestricted

geolocation Self Only

gyroscope Blocked

keyboard-map Blocked

magnetometer Blocked

microphone Blocked

midi Blocked

payment Unrestricted

picture-in-picture Unrestricted

publickey-credentials-get Blocked

screen-wake-lock Blocked

sync-xhr Unrestricted

usb Blocked

xr-spatial-tracking Blocked

gamepad Blocked

serial Blocked