Security
· 12 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.DSubresource IntegrityAction1 of 5 external resources have SRIFIX
| Tag | Domain | Integrity |
|---|---|---|
| <link> | static.kuula.io | ✗ Missing |
| <script> | www.gstatic.com | ✓ Protected |
| <script> | static.kuula.io | ✗ Missing |
| <script> | www.google.com | ✗ Missing |
| <script> | plausible.io | ✗ Missing |
FEmail SecurityActionNo DMARCFIX
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.
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
DPermissions-PolicyActionNo header setFIX
No Permissions-Policy header set.
Without this header, embedded iframes can request access to sensitive device features.
Permissions-Policy: camera=(), microphone=(), geolocation=(), payment=(), usb=()
Dsecurity.txtActionNo /.well-known/security.txt publishedFIX
security.txt
No security.txt found at /.well-known/security.txt
CSecurity HeadersAction4 of 10 headers properly configuredREVIEW
This header prevents MIME-type sniffing, which can lead to XSS attacks. Set it to 'nosniff'.
nosniffMIME 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
Controls how much referrer information is sent with requests. Set to 'strict-origin-when-cross-origin' or stricter.
strict-origin-when-cross-originDefault browser behavior leaks full URLs (including query params and tokens) to every third-party resource — set a strict policy.
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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.
geolocation=(), camera=(), microphone=()Permissions-Policy locks down browser APIs you don't use — without it, every page can request camera/mic/geolocation if XSS lands.
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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.
require-corpCOEP enforces that all embedded resources opt-in to cross-origin embedding — required for cross-origin isolation features.
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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
The Server header discloses the software version, aiding attackers in targeting known vulnerabilities. Remove the version number.
Server: nginx/1.18.0 tells attackers exactly which CVEs to test — strip the version string.
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Server version disclosure helps attackers select exploits matching your stack. Configure your server to omit the version (nginx: `server_tokens off;`, Apache: `ServerTokens Prod`). Doesn't fix vulnerabilities but removes the easy reconnaissance step.
Source: OWASP
same-originCOOP is set to a less-restrictive value (same-origin-allow-popups or unsafe-none) — partial isolation only.
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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
BContent Security Policy2 of 10 CSP checks passedREVIEW
default-src provides a fallback for other directives. Set it to restrict default resource loading.
default-src 'self'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'.
base-uri 'self'Missing base-uri in CSP leaves a base-tag injection attack path open even on otherwise strict policies.
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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.
form-action 'self'Security gaps expose your site and users to attacks, eroding trust.
This directive upgrades HTTP resources to HTTPS automatically, preventing mixed content.
upgrade-insecure-requestsWithout upgrade-insecure-requests, any HTTP subresource link survives as a mixed-content warning instead of auto-upgrading.
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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
BCORS ConfigurationNo CORS headersREVIEW
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 & CertificatesTLS 1.2, 7 checks passedPASS
TLS 1.3 offers improved performance and security. Consider enabling it.
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.
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
Certificate Chain
A+JS Library VulnerabilitiesNo known vulnerabilitiesPASS
No known JavaScript library vulnerabilities detected.
A+Information LeakageNo exposuresPASS
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 | — |