Security
· 32 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.FContent Security PolicyAction4 of 11 CSP checks passedFIX
'unsafe-inline' allows inline <script> tags, defeating CSP against XSS. Remove it and use nonces or hashes instead.
Unsafe value (unsafe-inline, unsafe-eval) in script-src defeats CSP's main protection — XSS injections can execute again.
Learn more ▾ ▴
unsafe-inline allows inline <script> tags; unsafe-eval allows eval() and similar. Both are necessary for some legacy code but explicitly dangerous. Migrate to nonces (per-page random tokens) or hashes (per-script SHA-256) instead.
Source: OWASP CSP / MDN
'unsafe-eval' allows eval() and similar functions, enabling code injection. Remove it.
Unsafe value (unsafe-inline, unsafe-eval) in script-src defeats CSP's main protection — XSS injections can execute again.
Learn more ▾ ▴
unsafe-inline allows inline <script> tags; unsafe-eval allows eval() and similar. Both are necessary for some legacy code but explicitly dangerous. Migrate to nonces (per-page random tokens) or hashes (per-script SHA-256) instead.
Source: OWASP CSP / MDN
A wildcard allows scripts from any origin, making CSP ineffective against XSS. Restrict to specific trusted origins.
script-src * defeats the entire point of CSP — any host can load scripts on your page.
Learn more ▾ ▴
A wildcard in script-src (or its absence with no default-src) lets any origin host scripts your page will execute. The CSP header is present but provides no XSS protection. Replace with an explicit allowlist (your own domain plus specific CDN hosts) or use nonces/hashes for inline scripts.
Source: MDN CSP / OWASP
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.
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
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.
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
A report-only policy is active alongside the enforcing policy for monitoring.
Running enforcing + Report-Only in parallel lets you test stricter directives safely before promoting them.
Source: MDN CSP
Parsed Policy
FSubresource Integrity AdoptionAction0% SRI adoption (0/54 third-party resources)FIX
FSubresource IntegrityAction0 of 54 external resources have SRIFIX
| Tag | Domain | Integrity |
|---|---|---|
| <script> | woensdrecht.logging.simanalytics.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | fonts.bunny.net | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <link> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | cuatro.sim-cdn.nl | ✗ Missing |
| <script> | woensdrecht.logging.simanalytics.nl | ✗ Missing |
| <script> | cdn-eu.readspeaker.com | ✗ Missing |
| <script> | app.tolkie.nl | ✗ Missing |
FEmail SecurityActionno DMARC, no SPFFIX
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. Add a TXT record at _dmarc.<domain> starting with v=DMARC1.
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
Without SPF (Sender Policy Framework), receivers can't tell which servers are authorized to send mail for your domain. Add a TXT record at the apex starting with v=spf1, ending in -all.
Security gaps expose your site and users to attacks, eroding trust.
DKIM signs outbound mail to prove origin. We probed common selectors (default, google, selector1, etc.) without finding a record. If you use a non-standard selector, this is a false negative.
No DKIM signature on outbound mail — receivers can't cryptographically prove the message came from your domain.
Learn more ▾ ▴
DKIM signs outbound mail with a private key whose public half lives in DNS at <selector>._domainkey.<domain>. Without DKIM, DMARC alone can't tell legitimate mail from spoofs, and large mailbox providers (Gmail, Yahoo) increasingly require DKIM for inbox placement. Note: this check probes a curated list of common selectors; non-standard selectors produce a false negative.
Source: RFC 6376 / Google + Yahoo 2024 sender requirements
MTA-STS forces inbound mail to use TLS, preventing downgrade attacks. Requires both a TXT record at _mta-sts.<domain> and a policy file at https://mta-sts.<domain>/.well-known/mta-sts.txt.
Without MTA-STS, inbound mail can be silently downgraded to plain SMTP by a network attacker.
Learn more ▾ ▴
MTA-STS (RFC 8461) tells sending mail servers to use TLS and to refuse delivery if TLS fails. Requires both a TXT record at _mta-sts.<domain> AND a policy file at https://mta-sts.<domain>/.well-known/mta-sts.txt. Without it, an active attacker on the network path can strip STARTTLS and read the email in plaintext.
Source: RFC 8461
TLS-RPT (RFC 8460) lets MTAs report TLS-handshake failures, so you can detect and fix MTA-STS misconfigurations. Add a TXT record at _smtp._tls.<domain>.
Without TLS-RPT, you have no visibility into inbound TLS failures — MTA-STS misconfigurations stay hidden until users complain.
Learn more ▾ ▴
TLS-RPT (RFC 8460) is the feedback channel for MTA-STS: senders post aggregate reports of TLS-handshake failures to the URI in your _smtp._tls TXT record. Without it, an MTA-STS misconfiguration silently rejects mail and you find out only when someone notices missing email.
Source: RFC 8460
BIMI (Brand Indicators for Message Identification) lets supporting clients (Gmail, Apple Mail, Yahoo) display your verified logo next to your messages. Optional but raises trust signals. Requires DMARC at p=quarantine or p=reject to be honored.
Security gaps expose your site and users to attacks, eroding trust.
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=()
CSecurity HeadersAction5 of 10 headers properly configuredREVIEW
Without includeSubDomains, subdomains can still be accessed over HTTP.
max-age=31536000; includeSubDomainsWithout 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
This header prevents clickjacking by controlling who can embed your page in a frame. Set it to DENY or SAMEORIGIN.
DENYWithout 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 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.
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'.
same-originCOOP 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.
require-corpCOEP 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
Could not query hstspreload.org for inclusion status: Get "https://hstspreload.org/api/v2/status?domain=www.woensdrecht.nl": context deadline exceeded
Could not query hstspreload.org for inclusion status — the API was unreachable for this scan.
BWAF / Bot ProtectionNo WAF detected via response headersREVIEW
Csecurity.txtActionNo security.txt file foundREVIEW
security.txt
No security.txt found at /.well-known/security.txt
BCSP Inline-Style Readiness7 inline style attribute(s) detectedREVIEW
BTrusted Types (XSS Sink Hardening)Trusted Types not enabledREVIEW
CPermissions-Policy GranularityActionNo Permissions-Policy header set -- powerful features (camera / microphone / geolocation / payment / USB) default to allow-on-same-originREVIEW
BHTML Version Disclosure1 generator tag(s) without version infoREVIEW
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 1.3, 8 checks passedPASS
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+Cross-Origin Tab SafetyNo new-tab links found -- no tabnabbing surfacePASS
A+Bot Challenge DetectionScan reached real page content (no bot-protection interstitial)PASS
A+Soft-404 DetectionNo soft-404 patterns detected in page title or headingsPASS
A+Empty Page DetectionPage has substantive body text and no placeholder / template-leak signalsPASS
A+Geo-Restriction DetectionNo geo-restriction signals detected -- scan reached the page from an allowed regionPASS
A+Maintenance Mode DetectionNo maintenance-mode signals detected -- scan reached a normal pagePASS
A+CORS DepthNo CORS response headers -- the resource is same-origin-only by browser defaultPASS
A+Referrer-Policy StrictnessReferrer-Policy is `same-origin` (strict -- Referer sent only on same-origin requests)PASS
A+Source Map ExposureSource-map probe didn't run on this scanPASS
A+Open Redirect SurfaceNo redirect-shaped query parameters in DOM linksPASS
A+Auth SecurityPage is not a login form -- auth-security checks are N/APASS
A+Subdomain Inventory ExposureNo risky subdomain names in certificate SANsPASS
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 | — |
| /package.json | ✓ Not found | dependency-manifest | — |
| /composer.json | ✓ Not found | dependency-manifest | — |
| /Gemfile | ✓ Not found | dependency-manifest | — |
| /Gemfile.lock | ✓ Not found | dependency-manifest | — |
| /requirements.txt | ✓ Not found | dependency-manifest | — |
| /pom.xml | ✓ Not found | dependency-manifest | — |
| /.gitlab-ci.yml | ✓ Not found | ci-config | — |
| /.travis.yml | ✓ Not found | ci-config | — |