Skip to content
https://gumgum.com

Security

· 12 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.
SCORE
75
GRADE
C
FIX
4
REVIEW
2
PASS
6
INFO
0
Checks
12
6 PASS 2 REVIEW 4 FIX
D
Security Headers
Action
5 of 10 headers properly configured
FIX
5 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
Info::
X-Content-Type-Options is properly configured
Got: nosniff
Info::
X-Frame-Options is properly configured
Got: SAMEORIGIN
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'
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

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

D
Subresource Integrity
Action
7 of 32 external resources have SRI
FIX
7 of 32 external resources have SRI
Info::
link from cdn.prod.website-files.com has SRI protection
Warning::
External script from js-na1.hs-scripts.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://js-na1.hs-scripts.com/568334.js
Warning::
External script from js.hs-banner.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://js.hs-banner.com/v2/568334/banner.js
Warning::
External script from js.hs-analytics.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://js.hs-analytics.net/analytics/1776362700000/568334.js
Warning::
External script from js.hscollectedforms.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://js.hscollectedforms.net/collectedforms.js
Warning::
External script from js.hsadspixel.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://js.hsadspixel.net/pixels.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-45KFEE44BW&gtg_health=1
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-NQF8RWT
Info::
script from www.gstatic.com has SRI protection
Warning::
External script from ajax.googleapis.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://ajax.googleapis.com/ajax/libs/webfont/1.6.26/webfont.js
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/css?family=Lato:100,100italic,300,300italic,400,400italic,700,700italic,900,900italic
Warning::
External script from cdn.intellimize.co lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.intellimize.co/snippet/117517753.js
Warning::
External script from www.google.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.google.com/recaptcha/api.js
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/consent/b44c011f-cbda-4a1d-b8ec-0122d0ec4289/OtAutoBlock.js
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
Warning::
External script from cdn.weglot.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.weglot.com/weglot.min.js
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/6.21.0/otBannerSdk.js
Warning::
External link from cdn.weglot.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.weglot.com/weglot.min.css?v=11
Info::
script from d3e54v103j8qbb.cloudfront.net has SRI protection
Info::
script from cdn.prod.website-files.com has SRI protection
Info::
script from cdn.prod.website-files.com has SRI protection
Info::
script from cdn.prod.website-files.com has SRI protection
Info::
script from cdn.prod.website-files.com has SRI protection
Warning::
External script from cdn.prod.website-files.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.prod.website-files.com/gsap/3.14.2/ScrollTrigger.min.js
Warning::
External script from es6cmx.csb.app lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://es6cmx.csb.app/counter.js
Warning::
External script from cdn.jsdelivr.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.jsdelivr.net/npm/js-cookie@2/src/js.cookie.min.js
Warning::
External script from cdn.weglot.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.weglot.com/weglot.min.js
Warning::
External script from cdn.jsdelivr.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://cdn.jsdelivr.net/npm/js-cookie@2/src/js.cookie.min.js
Warning::
External script from fgj2bc.csb.app lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://fgj2bc.csb.app/wf-forms.js
Warning::
External script from fgj2bc.csb.app lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://fgj2bc.csb.app/wf-block-domains.js
Warning::
External script from hubspotv2.use1-marketplace-1p-apps-prod-red.if.webflow.services lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://hubspotv2.use1-marketplace-1p-apps-prod-red.if.webflow.services/static/disable-hubspot-chatbot.js
Warning::
External script from js.hs-scripts.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://js.hs-scripts.com/568334.js
SRI Coverage 7 / 32 of external resources have integrity hashes
TagDomainIntegrity
<link>cdn.prod.website-files.com✓ Protected
<script>js-na1.hs-scripts.com✗ Missing
<script>js.hs-banner.com✗ Missing
<script>js.hs-analytics.net✗ Missing
<script>js.hscollectedforms.net✗ Missing
<script>js.hsadspixel.net✗ Missing
<script>www.googletagmanager.com✗ Missing
<script>www.googletagmanager.com✗ Missing
<script>www.gstatic.com✓ Protected
<script>ajax.googleapis.com✗ Missing
<link>fonts.googleapis.com✗ Missing
<script>cdn.intellimize.co✗ Missing
<script>www.google.com✗ Missing
<script>cdn.cookielaw.org✗ Missing
<script>cdn.cookielaw.org✗ Missing
<script>cdn.weglot.com✗ Missing
<script>cdn.cookielaw.org✗ Missing
<link>cdn.weglot.com✗ Missing
<script>d3e54v103j8qbb.cloudfront.net✓ Protected
<script>cdn.prod.website-files.com✓ Protected
<script>cdn.prod.website-files.com✓ Protected
<script>cdn.prod.website-files.com✓ Protected
<script>cdn.prod.website-files.com✓ Protected
<script>cdn.prod.website-files.com✗ Missing
<script>es6cmx.csb.app✗ Missing
<script>cdn.jsdelivr.net✗ Missing
<script>cdn.weglot.com✗ Missing
<script>cdn.jsdelivr.net✗ Missing
<script>fgj2bc.csb.app✗ Missing
<script>fgj2bc.csb.app✗ Missing
<script>hubspotv2.use1-marketplace-1p-apps-prod-red.if.webflow.services✗ Missing
<script>js.hs-scripts.com✗ Missing
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'
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'
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'
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 239 days)
Got: 2026-12-11T23:59:59Z
Info::
Certificate chain has 3 certificates
Info::
Certificate uses modern signature algorithm
Got: SHA256-RSA
Info::
Certificate covers 3 domain(s)
Got: *.gumgum.com, gumgum.com, *.ggops.com
Info::
Certificate is issued by a trusted CA
Got: CN=Amazon RSA 2048 M04,O=Amazon,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=*.gumgum.comIssuer CN=Amazon RSA 2048 M04,O=Amazon,C=USValid 2025-11-12T00:00:00Z → 2026-12-11T23:59:59ZExpires in 239 days SANs *.gumgum.com, gumgum.com, *.ggops.comSignature SHA256-RSASerial 6d0924d723ef733d318bae4cf0a840c
Intermediate (CA Certificate)
Subject CN=Amazon RSA 2048 M04,O=Amazon,C=USIssuer CN=Amazon Root CA 1,O=Amazon,C=USValid 2022-08-23T22:26:35Z → 2030-08-23T22:26:35ZExpires in 1590 days Signature SHA256-RSASerial 773124f2a952e3ed18a58bdb85d1bc0ce5f27
Intermediate (CA Certificate)
Subject CN=Amazon Root CA 1,O=Amazon,C=USIssuer CN=Starfield Services Root Certificate Authority - G2,O=Starfield Technologies\, Inc.,L=Scottsdale,ST=Arizona,C=USValid 2015-05-25T12:00:00Z → 2037-12-31T01:00:00ZExpires in 4276 days Signature SHA256-RSASerial 67f944a2a27cdf3fac2ae2b01f908eeb9c4c6
A+
Cookie Security
1 cookies analyzed, 3 checks passed
PASS
1 cookies analyzed, 3 checks passed
Info::
Cookie '_cfuvid' has the Secure flag
Info::
Cookie '_cfuvid' has the HttpOnly flag
Info::
Cookie '_cfuvid' has SameSite=None
1 cookies analyzed
NameSecureHttpOnlySameSiteSizeIssues
_cfuvid✓✓None121 B—
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+
Email Security
DMARC: reject
PASS
DMARC: reject
Info::
DMARC policy is reject — strongest protection
DMARC
Policy reject — strongest protection Record v=DMARC1; p=reject; rua=mailto:dmarc@gumgum.com,mailto:re+774f483db9c0@inbound.dmarcdigests.com; pct=100
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.

Send Feedback