Domain History

mdon.ee

Grade A+ · 90/100 · 5/6 security headers present

Security Score

A+

90/ 100

Security Headers

5/ 6

CSP Violations

NoViolations

Issues Found

0Issues

Recommendations

0Available

CSP Analysis

Content Security PolicyHIGH

base-uri 'none'; default-src 'none'; frame-ancestors 'none'; font-src 'self' https://cdn.mdon.ee; img-src 'self' data: blob: https://cdn.mdon.ee; media-src 'self' data: https://cdn.mdon.ee; manifest-src 'self' https://cdn.mdon.ee; form-action 'none'; child-src 'self' blob: https://cdn.mdon.ee; worker-src 'self' blob: https://cdn.mdon.ee; connect-src 'self' data: blob: https://cdn.mdon.ee wss://mdon.ee; script-src 'self' https://cdn.mdon.ee 'wasm-unsafe-eval'; frame-src 'self' https:; style-src 'self' https://cdn.mdon.ee 'nonce-vJKagEu29YFk3lnOf1DsQA=='

Directive Analysis

base-uriLOW

'none'

•Missing recommended values for base-uri: self, none

default-srcLOW

'none'

•Missing recommended values for default-src: self

frame-ancestorsLOW

'none'

•Missing recommended values for frame-ancestors: self, none

font-srcLOW

https://cdn.mdon.ee 'self'

•Missing recommended values for font-src: self

img-srcLOW

data: https://cdn.mdon.ee blob: 'self'

•Missing recommended values for img-src: self

media-srcLOW

data: https://cdn.mdon.ee 'self'

•Missing recommended values for media-src: self

manifest-srcLOW

https://cdn.mdon.ee 'self'

•Missing recommended values for manifest-src: self

form-actionLOW

'none'

•Missing recommended values for form-action: self

child-srcLOW

https://cdn.mdon.ee blob: 'self'

•Unknown directive: child-src

worker-srcLOW

https://cdn.mdon.ee blob: 'self'

•Missing recommended values for worker-src: self, none

connect-srcLOW

wss://mdon.ee blob: data: https://cdn.mdon.ee 'self'

•Missing recommended values for connect-src: self

script-srcMEDIUM

https://cdn.mdon.ee 'wasm-unsafe-eval' 'self'

•Missing recommended values for script-src: nonce-, self, sha256-, sha384-, sha512-

•No nonces or hashes used for script-src

frame-srcLOW

https: 'self'

•Missing recommended values for frame-src: self

style-srcLOW

https://cdn.mdon.ee 'nonce-vJKagEu29YFk3lnOf1DsQA==' 'self'

•Missing recommended values for style-src: nonce-, self, sha256-, sha384-, sha512-

Security Headers

✗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-PolicyPresent

same-origin

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

✓Strict-Transport-SecurityPresent

max-age=31536000; includeSubDomains

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

✓X-Content-Type-OptionsPresent

nosniff

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

✓X-Frame-OptionsPresent

DENY

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

✓X-XSS-ProtectionPresent

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

1 recommended security header is missing on mdon.ee.

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 mdon.eeWeak headers often come with other exposure — check the full picture.

See full exposure report on OSN →Free, no signup.

mdon.ee

3 scans since 7/18/2025

A+

Latest: 90/100

Total Scans

Latest Score

90/100

First Scan

7/18/2025

Last Scan

7/19/2025

Score Trend

Security score progression over 2 scans

Scan History

Date	Score	CSP	Headers	Issues	Action
Jul 19, 2025	A+ (90)	No	5/6	0	View →
Jul 18, 2025	A+ (90)	No	5/6	0	View →

Show off your security grade

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HeaderTest security grade: A+ (90/100) for mdon.ee

HTML

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  <img src="https://headertest.com/api/badge/mdon.ee" alt="HeaderTest security grade: A+ (90/100) for mdon.ee" />
</a>

Markdown

[![HeaderTest security grade: A+ (90/100) for mdon.ee](https://headertest.com/api/badge/mdon.ee)](https://headertest.com/results/mdon.ee)