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Security

· 12 checks — HTTP headers, CSP, TLS handshake, and cookie hygiene rolled into one auditable list.
SCORE
73
GRADE
C
FIX
4
REVIEW
2
PASS
6
INFO
0
Checks
12
6 PASS 2 REVIEW 4 FIX
F
Content Security Policy
Action
3 of 10 CSP checks passed
FIX
3 of 10 CSP checks passed
Info::
Raw CSP policy
Got: default-src https: data: 'unsafe-inline' 'unsafe-eval'; child-src https: data: blob:; connect-src https: data: blob: ; font-src https: data:; img-src https: data: blob:; media-src https: data: blob:; object-src https:; script-src https: data: blob: 'unsafe-inline' 'unsafe-eval'; style-src https: 'unsafe-inline'; block-all-mixed-content; upgrade-insecure-requests
Info::
default-src directive is set
Got: default-src https: data: 'unsafe-inline' 'unsafe-eval'
Critical::
'unsafe-inline' found in script source
'unsafe-inline' allows inline <script> tags, defeating CSP against XSS. Remove it and use nonces or hashes instead.
Got: script-src https: data: blob: 'unsafe-inline' 'unsafe-eval'
Critical::
'unsafe-eval' found in script source
'unsafe-eval' allows eval() and similar functions, enabling code injection. Remove it.
Got: script-src https: data: blob: 'unsafe-inline' 'unsafe-eval'
Info::
No wildcard in script source
Warning::
object-src allows plugin content
Set object-src to 'none' to prevent Flash/Java plugin exploits.
Got: object-src https: Expected: object-src 'none'
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'
Warning::
frame-ancestors directive is missing
frame-ancestors controls who can embed your page, preventing clickjacking. Set it to 'self' or 'none'.
Expected: 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 enabled

'unsafe-inline' allows inline <script> tags, defeating CSP against XSS. Remove it and use nonces or hashes instead.

Why this matters

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.

Why this matters

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

Set object-src to 'none' to prevent Flash/Java plugin exploits.

Expected: object-src 'none'
Why this matters

object-src open in CSP allows Flash/PDF/plugin embedding — a now-deprecated attack vector that should be explicitly blocked.

Learn more ▾

object-src controls <object>, <embed>, and <applet> elements. Modern sites have no need for plugins; setting `object-src 'none'` blocks an entire class of legacy XSS vectors at zero cost. If your CSP missed it, add the directive.

Source: MDN CSP

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

frame-ancestors controls who can embed your page, preventing clickjacking. Set it to 'self' or 'none'.

Expected: frame-ancestors 'self'
Why this matters

Security gaps expose your site and users to attacks, eroding trust.

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.

Parsed Policy

default-src https:data:'unsafe-inline''unsafe-eval'
child-src https:data:blob:
connect-src https:data:blob:
font-src https:data:
img-src https:data:blob:
media-src https:data:blob:
object-src https:
script-src https:data:blob:'unsafe-inline''unsafe-eval'
style-src https:'unsafe-inline'
block-all-mixed-content
upgrade-insecure-requests
F
Subresource Integrity
Action
0 of 25 external resources have SRI
FIX
0 of 25 external resources have SRI
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/f58a413d-ef67-468f-943e-677ae4c22344/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 securepubads.g.doubleclick.net lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: //securepubads.g.doubleclick.net/tag/js/gpt.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/css2?family=IBM+Plex+Mono:wght@100;200;300;400;500;600;700&family=IBM+Plex+Sans+Condensed:wght@400;500;700&family=Fira+Sans:wght@300;400;500;600;700;800&family=Sarabun:wght@400;500;600;700&family=Noto+Serif:wght@400;500;600;700&display=swap
Warning::
External link from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/themes/thisoldhouse/assets/build/css/main.css?ver=1.2.1
Warning::
External link from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/themes/thisoldhouse/assets/css/theme-common-style.min.css?ver=1.2.1
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/plugins/breeze/assets/js/js-front-end/breeze-prefetch-links.min.js?ver=2.4.2
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/plugins/toh-ads-management/assets/js/toh-gam-script.min.js?ver=1.1.0.2
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-PHC8NT45WF
Warning::
External link from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/plugins/multidots-core/assets/css/project-plans.css?ver=1.0.2
Warning::
External link from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/cache/perfmatters/www.thisoldhouse.com/minify/f38b2db10e01.slick.min.css?ver=6.9.4
Warning::
External script from scripts.simpleanalyticscdn.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://scripts.simpleanalyticscdn.com/latest.js
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-includes/js/jquery/jquery.min.js?ver=1.0
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/plugins/ewww-image-optimizer/includes/lazysizes.min.js?ver=841
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/plugins/multidots-custom-blocks/assets/js/slick.min.js?ver=1.0.0
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/plugins/multidots-custom-blocks/assets/js/slick.js?ver=1.0.0
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/plugins/multidots-custom-blocks/assets/js/nh-data.js?ver=1.0.4
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/plugins/multidots-core/assets/js/core.js?ver=1.0.10
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-includes/js/jquery/ui/core.min.js?ver=1.13.3
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-includes/js/jquery/ui/mouse.min.js?ver=1.13.3
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-includes/js/jquery/ui/slider.min.js?ver=1.13.3
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/plugins/multidots-core/assets/js/project-plans.js?ver=1.0.1
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/themes/thisoldhouse/assets/build/js/main.js?ver=1.1.2
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/themes/thisoldhouse/assets/js/moreMenu.min.js?ver=1.0.5
Warning::
External script from www.thisoldhouse.com lacks integrity attribute
Without SRI, if this CDN is compromised, attackers could inject malicious code.
Got: https://www.thisoldhouse.com/wp-content/plugins/perfmatters/js/lazyload.min.js?ver=2.5.9
SRI Coverage 0 / 25 of external resources have integrity hashes
TagDomainIntegrity
<script>cdn.cookielaw.org✗ Missing
<script>cdn.cookielaw.org✗ Missing
<script>securepubads.g.doubleclick.net✗ Missing
<link>fonts.googleapis.com✗ Missing
<link>www.thisoldhouse.com✗ Missing
<link>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.googletagmanager.com✗ Missing
<link>www.thisoldhouse.com✗ Missing
<link>www.thisoldhouse.com✗ Missing
<script>scripts.simpleanalyticscdn.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.com✗ Missing
<script>www.thisoldhouse.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
Security Headers
6 of 10 headers properly configured
REVIEW
6 of 10 headers properly configured
Warning::
HSTS is missing includeSubDomains
Without includeSubDomains, subdomains can still be accessed over HTTP.
Got: max-age=31556952 Expected: max-age=31536000; includeSubDomains
Info::
X-Content-Type-Options is properly configured
Got: nosniff
Info::
X-Frame-Options is properly configured
Got: sameorigin
Info::
Referrer-Policy is properly configured
Got: 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: default-src https: data: 'unsafe-inline' 'unsafe-eval'; child-src https: data: b…
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: nginx

Without includeSubDomains, subdomains can still be accessed over HTTP.

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

Without 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

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

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_256_GCM_SHA384
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 55 days)
Got: 2026-06-17T00:23:28Z
Info::
Certificate chain has 2 certificates
Info::
Certificate uses modern signature algorithm
Got: ECDSA-SHA384
Info::
Certificate covers 2 domain(s)
Got: thisoldhouse.com, www.thisoldhouse.com
Info::
Certificate is issued by a trusted CA
Got: CN=E8,O=Let's Encrypt,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_256_GCM_SHA384
HTTP Version
HTTP/1.1

Certificate Chain

Leaf Certificate
Subject CN=www.thisoldhouse.comIssuer CN=E8,O=Let's Encrypt,C=USValid 2026-03-19T00:23:29Z → 2026-06-17T00:23:28ZExpires in 55 days SANs thisoldhouse.com, www.thisoldhouse.comSignature ECDSA-SHA384Serial 5e0319c74f3da9e79512ea6702468d65931
Intermediate (CA Certificate)
Subject CN=E8,O=Let's Encrypt,C=USIssuer CN=ISRG Root X1,O=Internet Security Research Group,C=USValid 2024-03-13T00:00:00Z → 2027-03-12T23:59:59ZExpires in 324 days Signature SHA256-RSASerial 63959363c24e7082715918bfc3d7ed56
A+
Cookie Security
No cookies set — no cookie security risks
PASS
No cookies set — no cookie security risks
Info::
No cookies set — no cookie security risks

No cookies detected — no cookie security risks to report.

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; fo=1; rua=mailto:trcsweyf@ag.us.dmarcian.com
A
Transport Security
HTTP/3, HSTS, and TLS version analysis
PASS
HTTP/3, HSTS, and TLS version analysis
Info::
HTTP/3 (QUIC) not advertised
HTTP/3 eliminates head-of-line blocking. If your CDN supports it, consider enabling it.
Info::
HSTS enabled (base policy)
Info::
HSTS missing includeSubDomains
Without includeSubDomains, HSTS only protects the exact domain.
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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