Security
· 12 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.FSecurity HeadersAction1 of 10 headers properly configuredFIX
Strict-Transport-Security forces browsers to use HTTPS, preventing downgrade attacks. Add the header with a max-age of at least 1 year.
max-age=31536000; includeSubDomainsWithout HSTS, a network attacker can downgrade the very first connection to HTTP and steal the user's session.
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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'.
nosniffMIME sniffing lets browsers run uploaded files as JavaScript, turning a file upload into an XSS.
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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.
DENYWithout frame protection, your site can be embedded in a hostile page and used for clickjacking.
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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.
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
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.
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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.
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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
This header discloses server technology (e.g. Express, PHP), helping attackers target known vulnerabilities. Remove it.
X-Powered-By: PHP/7.4.3 advertises your stack to attackers — disable it.
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X-Powered-By and similar headers (X-AspNet-Version, X-Runtime) tell attackers which versions to target. Disable in your server/framework config: PHP `expose_php=Off`, ASP.NET `<httpRuntime enableVersionHeader="false">`, Express `app.disable('x-powered-by')`.
Source: OWASP
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
DContent Security PolicyAction4 of 10 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.
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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.
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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
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
DSubresource IntegrityAction1 of 16 external resources have SRIFIX
| Tag | Domain | Integrity |
|---|---|---|
| <script> | www.youtube.com | ✗ Missing |
| <script> | www.googletagmanager.com | ✗ Missing |
| <script> | cdn.informz.net | ✗ Missing |
| <script> | www.youtube.com | ✗ Missing |
| <script> | www.googletagmanager.com | ✗ Missing |
| <script> | www.googletagmanager.com | ✗ Missing |
| <script> | www.googletagmanager.com | ✗ Missing |
| <script> | www.googletagmanager.com | ✗ Missing |
| <link> | use.fontawesome.com | ✓ Protected |
| <script> | js.monitor.azure.com | ✗ Missing |
| <script> | cmp.osano.com | ✗ Missing |
| <script> | d932.asm.org | ✗ Missing |
| <script> | web.propfuel.com | ✗ Missing |
| <script> | ajax.googleapis.com | ✗ Missing |
| <script> | api.ipify.org | ✗ Missing |
| <script> | assets.adobedtm.com | ✗ Missing |
DEmail SecurityActionDMARC: noneFIX
This only monitors, it doesn't block spoofed emails. Change to p=quarantine or p=reject.
DMARC p=none collects reports but doesn't actually block spoofed mail — phishing emails still reach inboxes.
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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
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
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
BTransport SecurityHTTP/3, HSTS, and TLS version analysisREVIEW
ATLS & CertificatesTLS 1.3, 7 checks passedPASS
Renew the certificate before it expires to avoid browser warnings.
Cert expiry within the renewal window — fix now while there's no user impact, instead of after expiry when there's a full outage.
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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
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.
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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 | — |