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Security

· 12 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.
SCORE
65
GRADE
D
FIX
5
REVIEW
3
PASS
4
INFO
0
Checks
12
4 PASS 3 REVIEW 5 FIX
F
Security Headers
Action
3 of 10 headers properly configured
FIX
3 of 10 headers properly configured
Critical::
HSTS header is missing
Strict-Transport-Security forces browsers to use HTTPS, preventing downgrade attacks. Add the header with a max-age of at least 1 year.
Expected: max-age=31536000; includeSubDomains
Warning::
X-Content-Type-Options header is missing
This header prevents MIME-type sniffing, which can lead to XSS attacks. Set it to 'nosniff'.
Expected: nosniff
Warning::
X-Frame-Options header is missing
This header prevents clickjacking by controlling who can embed your page in a frame. Set it to DENY or SAMEORIGIN.
Expected: 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: frame-ancestors 'self' https://*.sdsu.edu https://a.cms.omniupdate.com https://s…
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: cloudflare

Strict-Transport-Security forces browsers to use HTTPS, preventing downgrade attacks. Add the header with a max-age of at least 1 year.

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

Without HSTS, a network attacker can downgrade the very first connection to HTTP and steal the user's session.

Learn more ▾

HSTS tells browsers 'never speak HTTP to this domain again.' Without it, a network attacker (public WiFi, malicious ISP, hostile DNS) intercepts the first HTTP attempt and serves a downgraded version of your site. One header, big surface reduction.

Source: RFC 6797 / OWASP

This header prevents MIME-type sniffing, which can lead to XSS attacks. Set it to 'nosniff'.

Expected: nosniff
Why this matters

MIME sniffing lets browsers run uploaded files as JavaScript, turning a file upload into an XSS.

Learn more ▾

Setting X-Content-Type-Options: nosniff tells browsers to trust your declared Content-Type instead of guessing. Without it, an attacker who uploads a polyglot file can sometimes get it executed as a script. One header, no downside.

Source: OWASP / MDN

This header prevents clickjacking by controlling who can embed your page in a frame. Set it to DENY or SAMEORIGIN.

Expected: DENY
Why this matters

Without frame protection, your site can be embedded in a hostile page and used for clickjacking.

Learn more ▾

Clickjacking overlays your site under a transparent malicious page so users click invisible buttons. Setting X-Frame-Options: DENY (or a modern frame-ancestors CSP directive) blocks the embedding entirely. There's almost never a legitimate reason to allow it.

Source: OWASP / MDN

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

F
Subresource Integrity
Action
0 of 27 external resources have SRI
FIX
0 of 27 external resources have SRI
Warning::
External script from scripts.clarity.ms lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://scripts.clarity.ms/0.8.59/clarity.js
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/destination?id=AW-10812186853&cx=c&gtm=4e64h1
Warning::
External script from learn.go-sandiegostate.org lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://learn.go-sandiegostate.org/mtc.js
Warning::
External script from tr.snapchat.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://tr.snapchat.com/config/edu/90d6d784-d1f0-4505-8a25-16e812445122.js?v=3.55.0-2604211744
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.clarity.ms lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.clarity.ms/tag/djf35rrbni?ref=gtm2
Warning::
External script from sc-static.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://sc-static.net/scevent.min.js
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-PQ982Y29GP&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/gtag/js?id=AW-17910356512&cx=c&gtm=4e64h1
Warning::
External script from cdn.cookielaw.org lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.cookielaw.org/scripttemplates/otSDKStub.js?did=0199ee14-882f-7393-9c3d-8743767f00c1
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/gtm.js?id=GTM-P5224TD
Warning::
External link from use.fontawesome.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://use.fontawesome.com/releases/v5.15.4/css/all.css
Warning::
External link from use.typekit.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://use.typekit.net/vfx4zws.css
Warning::
External link from ou-resources.sdsu.edu lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ou-resources.sdsu.edu/crimson/css/slick/1.8.1/slick.min.css
Warning::
External link from ou-resources.sdsu.edu lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ou-resources.sdsu.edu/crimson/css/main.min.css?v=20260302
Warning::
External link from ou-resources.sdsu.edu lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ou-resources.sdsu.edu/crimson/css/custom.css
Warning::
External link from ou-resources.sdsu.edu lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ou-resources.sdsu.edu/crimson/css/oustyles.css
Warning::
External link from www.sdsu.edu lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.sdsu.edu/ou-alerts/alerts-config.alerts.css?v=2.0-20210629082833
Warning::
External link from www.sdsu.edu lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.sdsu.edu/_resources/css/crimson/local.css
Warning::
External script from cdn.cookielaw.org lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.cookielaw.org/scripttemplates/202604.1.0/otBannerSdk.js
Warning::
External script from ou-resources.sdsu.edu lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ou-resources.sdsu.edu/js/jquery/jquery-3.6.0.min.js
Warning::
External script from ou-resources.sdsu.edu lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ou-resources.sdsu.edu/crimson/js/onetrust-wrapper.min.js
Warning::
External script from ou-resources.sdsu.edu lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ou-resources.sdsu.edu/crimson/js/_compiled/main.min.js?v=20260302
Warning::
External script from ou-resources.sdsu.edu lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ou-resources.sdsu.edu/crimson/js/ouscripts.js
Warning::
External script from www.sdsu.edu lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.sdsu.edu/ou-alerts/alerts-config.alerts.js?v=2.0-20210629082832
Warning::
External script from adp.eab.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://adp.eab.com/js/adp.min.js
SRI Coverage 0 / 27 of external resources have integrity hashes
TagDomainIntegrity
<script>scripts.clarity.ms✗ Missing
<script>www.googletagmanager.com✗ Missing
<script>learn.go-sandiegostate.org✗ Missing
<script>tr.snapchat.com✗ Missing
<script>www.youtube.com✗ Missing
<script>www.clarity.ms✗ Missing
<script>sc-static.net✗ Missing
<script>www.googletagmanager.com✗ Missing
<script>www.googletagmanager.com✗ Missing
<script>cdn.cookielaw.org✗ Missing
<script>www.youtube.com✗ Missing
<script>www.googletagmanager.com✗ Missing
<link>use.fontawesome.com✗ Missing
<link>use.typekit.net✗ Missing
<link>ou-resources.sdsu.edu✗ Missing
<link>ou-resources.sdsu.edu✗ Missing
<link>ou-resources.sdsu.edu✗ Missing
<link>ou-resources.sdsu.edu✗ Missing
<link>www.sdsu.edu✗ Missing
<link>www.sdsu.edu✗ Missing
<script>cdn.cookielaw.org✗ Missing
<script>ou-resources.sdsu.edu✗ Missing
<script>ou-resources.sdsu.edu✗ Missing
<script>ou-resources.sdsu.edu✗ Missing
<script>ou-resources.sdsu.edu✗ Missing
<script>www.sdsu.edu✗ Missing
<script>adp.eab.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:dmarc_rua@emaildefense.proofpoint.com,mailto:dmarc@sdsu.edu,mailto:dmarc_agg@vali.email; ruf=mailto:dmarc_ruf@emaildefense.proofpoint.com,mailto:dmarc@sdsu.edu; fo=1

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

B
Content Security Policy
2 of 10 CSP checks passed
REVIEW
2 of 10 CSP checks passed
Info::
Raw CSP policy
Got: frame-ancestors 'self' https://*.sdsu.edu https://a.cms.omniupdate.com https://sdsu.instructure.com;
Warning::
default-src directive is missing
default-src provides a fallback for other directives. Set it to restrict default resource loading.
Expected: default-src 'self'
Info::
No script-src or default-src to check for 'unsafe-inline'
Info::
No script-src or default-src to check for 'unsafe-eval'
Info::
No script-src or default-src to check for wildcard
Info::
object-src falls back to default-src
Warning::
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'
Info::
frame-ancestors directive is set
Got: frame-ancestors 'self' https://*.sdsu.edu https://a.cms.omniupdate.com https://sdsu.instructure.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

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

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

frame-ancestors 'self'https://*.sdsu.eduhttps://a.cms.omniupdate.comhttps://sdsu.instructure.com
B
Cookie Security
1 cookies analyzed, 1 checks passed
REVIEW
1 cookies analyzed, 1 checks passed
Critical::
Cookie 'BIGipServer~org-10459~SDSU-Primary' is missing the Secure flag
Without the Secure flag, this cookie can be sent over unencrypted HTTP, exposing it to interception.
Info::
Cookie 'BIGipServer~org-10459~SDSU-Primary' has the HttpOnly flag
Warning::
Cookie 'BIGipServer~org-10459~SDSU-Primary' has no SameSite attribute
Without an explicit SameSite attribute, browser default behavior varies. Set SameSite=Lax or Strict.
1 cookies analyzed 1 critical 1 warnings
NameSecureHttpOnlySameSiteSizeIssues
BIGipServer~org-10459~SDSU-Primary✗✓—76 B2
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
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 324 days)
Got: 2027-03-11T23:59:59Z
Info::
Certificate chain has 3 certificates
Info::
Certificate uses modern signature algorithm
Got: SHA256-RSA
Info::
Certificate covers 5 domain(s)
Got: www.sdsu.edu, *.sdsu.edu, sdsu.edu, www.engineering.sdsu.edu, www.foundation.sdsu.edu
Info::
Certificate is issued by a trusted CA
Got: CN=InCommon RSA Server CA 2,O=Internet2,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.sdsu.edu,O=San Diego State University,ST=California,C=USIssuer CN=InCommon RSA Server CA 2,O=Internet2,C=USValid 2026-03-11T00:00:00Z → 2027-03-11T23:59:59ZExpires in 324 days SANs www.sdsu.edu, *.sdsu.edu, sdsu.edu, www.engineering.sdsu.edu, www.foundation.sdsu.eduSignature SHA256-RSASerial 14eb901c0eca5a18040805bdad16847d
Intermediate (CA Certificate)
Subject CN=InCommon RSA Server CA 2,O=Internet2,C=USIssuer CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=USValid 2022-11-16T00:00:00Z → 2032-11-15T23:59:59ZExpires in 2400 days Signature SHA384-RSASerial 835b7615206d2d6e097e0b6e409fefc0
Intermediate (CA Certificate)
Subject CN=USERTrust RSA Certification Authority,O=The USERTRUST Network,L=Jersey City,ST=New Jersey,C=USIssuer CN=AAA Certificate Services,O=Comodo CA Limited,L=Salford,ST=Greater Manchester,C=GBValid 2019-03-12T00:00:00Z → 2028-12-31T23:59:59ZExpires in 985 days Signature SHA384-RSASerial 3972443af922b751d7d36c10dd313595
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—
A
Transport Security
HTTP/3, HSTS, and TLS version analysis
PASS
HTTP/3, HSTS, and TLS version analysis
Info::
HTTP/3 (QUIC) supported
The server advertises HTTP/3 via Alt-Svc for faster connections on mobile networks.
Warning::
Missing Strict-Transport-Security header
HSTS tells browsers to only use HTTPS, preventing SSL stripping attacks.
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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