Domain History

e621.net

Grade A+ · 96/100 · 5/7 security headers present

Security Score

A+

96/ 100

Security Headers

5/ 7

CSP Violations

NoViolations

Issues Found

5Issues

Recommendations

2Available

Security

96 / 100

Excellent security posture with strong CSP protections in place.

Compliance

77 / 100

Mostly compliant but some directives or headers are missing.

Best Practices

53 / 100

Basic practices followed but missing important optimizations.

CSP Analysis

Content Security PolicyHIGH

default-src 'self'; script-src 'self' rv.e621.net https://www.google.com/recaptcha/ https://www.gstatic.com/recaptcha/ https://www.recaptcha.net/ https://assets.freespeechcoalition.com https://op.dragonfru.it/ 'nonce-sughPftk92dBeSJ1rZUs9w=='; style-src 'self' 'unsafe-inline'; connect-src 'self' rv.e621.net op.dragonfru.it static1.e621.net static1.e926.net api.freespeechcoalition.com; object-src 'self' static1.e621.net static1.e926.net; media-src 'self' static1.e621.net static1.e926.net; frame-ancestors 'none'; frame-src https://www.google.com/recaptcha/ https://www.recaptcha.net/; font-src 'self'; img-src 'self' data: static1.e621.net static1.e926.net rv.e621.net; child-src 'none'; form-action 'self' discord.e621.net discord.com

Directive Analysis

default-srcLOW

self

script-srcLOW

self rv.e621.net https://www.google.com/recaptcha/ https://www.gstatic.com/recaptcha/ https://www.recaptcha.net/ https://assets.freespeechcoalition.com https://op.dragonfru.it/ nonce-sughPftk92dBeSJ1rZUs9w==

style-srcHIGH

self unsafe-inline

•Unsafe inline execution allowed in style-src

connect-srcLOW

self rv.e621.net op.dragonfru.it static1.e621.net static1.e926.net api.freespeechcoalition.com

object-srcLOW

self static1.e621.net static1.e926.net

media-srcLOW

self static1.e621.net static1.e926.net

frame-ancestorsLOW

none

frame-srcLOW

https://www.google.com/recaptcha/ https://www.recaptcha.net/

font-srcLOW

self

img-srcLOW

self data: static1.e621.net static1.e926.net rv.e621.net

•Info: 'data:' URI in img-src

child-srcLOW

none

form-actionLOW

self discord.e621.net discord.com

Missing Directives

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

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-PolicyPresent

strict-origin-when-cross-origin

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

✓Strict-Transport-SecurityPresent

max-age=0; 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

1; mode=block

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

2 recommended security headers are missing on e621.net.

Issues Found

•Info: 'data:' URI in img-srcinfo
•Missing HIGH directive base-uri (Base URI control - prevents base tag injection)high
•Missing security header: Cross-Origin-Opener-Policymedium
•Missing security header: Permissions-Policymedium
•Unsafe inline execution allowed in style-srchigh

Recommendations

→Add base-uri directive with appropriate restrictions
→Consider implementing a stricter Content Security Policy

Beyond headers: infrastructure exposure

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e621.net

1 scan since 6/28/2026

A+

Latest: 96/100

Total Scans

Latest Score

96/100

First Scan

6/28/2026

Last Scan

6/28/2026

Security

96 / 100

Excellent security posture with strong CSP protections in place.

Compliance

77 / 100

Mostly compliant but some directives or headers are missing.

Best Practices

53 / 100

Basic practices followed but missing important optimizations.

Scan History

Date	Score	CSP	Headers	Issues	Action
Jun 28, 2026	A+ (96)	Yes	5/7	5	View →

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