Domain History

myschool.softlinkedu.com

Grade F · 31/100 · 1/7 security headers present

Security Score

31/ 100

Security Headers

1/ 7

CSP Violations

NoViolations

Issues Found

14Issues

Recommendations

9Available

Security

31 / 100

Significant security weaknesses detected in CSP configuration.

Compliance

31 / 100

Major compliance issues — missing critical directives and headers.

Best Practices

10 / 100

Best practices largely absent — review CSP configuration.

CSP Analysis

Content Security PolicyMEDIUM

default-src 'self'; script-src 'self' https://apis.example.com

Directive Analysis

default-srcLOW

self

script-srcMEDIUM

self https://apis.example.com

•No nonces or hashes used for script-src

Missing Directives

⚠HIGHMissing HIGH directive object-src (Plugin control - should be 'none')

⚠HIGHMissing HIGH directive base-uri (Base URI control - prevents base tag injection)

⚠HIGHMissing HIGH directive frame-ancestors (Framing control - prevents clickjacking)

⚠MEDIUMMissing MEDIUM directive form-action (Form submission control - prevents form hijacking)

⚠MEDIUMMissing MEDIUM directive connect-src (API/XHR control - prevents data exfiltration)

⚠MEDIUMMissing MEDIUM directive style-src (Stylesheet source control)

⚠MEDIUMMissing MEDIUM directive img-src (Image source control)

⚠MEDIUMMissing MEDIUM directive font-src (Font source control)

Security Headers

✗Cross-Origin-Opener-PolicyMissing

Isolates the browsing context to prevent Spectre-type side-channel attacks and cross-origin window manipulation.

How to add it:

nginx

add_header Cross-Origin-Opener-Policy "same-origin" always;

apache

Header always set Cross-Origin-Opener-Policy "same-origin"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set Cross-Origin-Opener-Policy to "same-origin"

✗Permissions-PolicyMissing

Restricts which browser features (camera, microphone, geolocation) the page can use, limiting attack surface.

How to add it:

nginx

add_header Permissions-Policy "camera=(), microphone=(), geolocation=()" always;

apache

Header always set Permissions-Policy "camera=(), microphone=(), geolocation=()"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set Permissions-Policy value

✗Referrer-PolicyMissing

Controls how much referrer information is sent with requests, preventing data leaks to third parties.

How to add it:

nginx

add_header Referrer-Policy "strict-origin-when-cross-origin" always;

apache

Header always set Referrer-Policy "strict-origin-when-cross-origin"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set Referrer-Policy to "strict-origin-when-cross-origin"

✓Strict-Transport-SecurityPresent

max-age=31536000

Forces browsers to use HTTPS for all future requests, preventing man-in-the-middle attacks and SSL stripping.

✗X-Content-Type-OptionsMissing

Prevents browsers from MIME-sniffing responses away from the declared Content-Type, blocking drive-by downloads.

How to add it:

nginx

add_header X-Content-Type-Options "nosniff" always;

apache

Header always set X-Content-Type-Options "nosniff"

cloudflare

Rules > Transform Rules > Managed Transforms > Enable "Add X-Content-Type-Options header"

✗X-Frame-OptionsMissing

Prevents the page from being embedded in iframes, protecting against clickjacking attacks.

How to add it:

nginx

add_header X-Frame-Options "DENY" always;

apache

Header always set X-Frame-Options "DENY"

cloudflare

Rules > Transform Rules > HTTP Response Header Modification > Set X-Frame-Options to "DENY"

—X-XSS-ProtectionDeprecated

Legacy XSS filter for older browsers. Modern browsers use CSP instead. Set to "0" to avoid false positives.

5 recommended security headers are missing on myschool.softlinkedu.com.

Issues Found

•Missing HIGH directive base-uri (Base URI control - prevents base tag injection)high
•Missing HIGH directive frame-ancestors (Framing control - prevents clickjacking)high
•Missing HIGH directive object-src (Plugin control - should be 'none')high
•Missing MEDIUM directive connect-src (API/XHR control - prevents data exfiltration)medium
•Missing MEDIUM directive font-src (Font source control)medium
•Missing MEDIUM directive form-action (Form submission control - prevents form hijacking)medium
•Missing MEDIUM directive img-src (Image source control)medium
•Missing MEDIUM directive style-src (Stylesheet source control)medium
•Missing security header: Cross-Origin-Opener-Policymedium
•Missing security header: Permissions-Policymedium
•Missing security header: Referrer-Policymedium
•Missing security header: X-Content-Type-Optionsmedium
•Missing security header: X-Frame-Optionsmedium
•No nonces or hashes used for script-srcmedium

Recommendations

→Add base-uri directive with appropriate restrictions
→Add connect-src directive with appropriate restrictions
→Add font-src directive with appropriate restrictions
→Add form-action directive with appropriate restrictions
→Add frame-ancestors directive with appropriate restrictions
→Add img-src directive with appropriate restrictions
→Add object-src directive with appropriate restrictions
→Add style-src directive with appropriate restrictions
→Review and tighten source lists in Content Security Policy

Beyond headers: infrastructure exposure

via OSN, our sister project

Security headers protect the browser. OSN maps what's exposed underneath — servers, open ports, known CVEs, DNS and WHOIS.

See what the internet sees about myschool.softlinkedu.comWeak headers often come with other exposure — check the full picture.

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