HTTP Headers Analysis for https://clerk.devs.ai

Detected Technologies from Headers

See all in URL Inspect 2

Cloudflare NEL Monitoring

Cloudflare CDN

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=63072000;

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Missing

Not configured

X-Content-Type-Options

Missing

Not configured

Referrer-Policy

Missing

Not configured

Permissions-Policy

Missing

Not configured

Recommendations

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Add Content-Security-Policy header to prevent XSS attacks
• Add X-Frame-Options: DENY or SAMEORIGIN to prevent clickjacking
• Add X-Content-Type-Options: nosniff
• Add Referrer-Policy header (recommended: strict-origin-when-cross-origin)
• Consider adding Permissions-Policy to control browser features

Performance Headers

Connection

Performance

close

connection: close

Caching Headers

No caching headers found

Content Headers

Content-Length

Content

0

Content-Type

Content

application/json

content-length: 0
content-type: application/json

Server Headers

Server

cloudflare

server: cloudflare

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: __cf_bm=4.m9aVO6S_jPfnUlkfeirO_BKfrzCnMZqZr37sP_8X0-1778626998-1.0.1.1-Cam9c5Z0aGSsluMtwDdGEGXvexuxOLRW5_5yk8ZBILOr9kS_S9DZmkjLac3nEB4wioDt4F32C1l2wriDYWYDWcOAg16S8WW8IqUbkajUF_0; path=/; expires=Tue, 12-May-26 23:33:18 GMT; domain=.clerk.devs.ai; HttpOnly; Secure; SameSite=None
_cfuvid=pcaBuCQ5YQJ3lTQefis7Ut0xy2cVP8ynpQreUqKk9Ys-1778626998252-0.0.1.1-604800000; path=/; domain=.clerk.devs.ai; HttpOnly; Secure; SameSite=None

Other Headers

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

9fad0e528c39e642-IAD

Date

Other

Tue, 12 May 2026 23:03:18 GMT

Nel

Other

Report-To Group cf-nel max-age: 1w

success: 1.0%

Report-To

Other

Group cf-nel max-age: 1w

Endpoint 1 https://a.nel.cloudflare.com/report/v4?s=A15lFkEvlU4UFsCNHQ0l0eDIwgqDyG7V1LmZIyNohPptZB5cLMIsRP7%2Bhg0pIg1lv9ckAmO9jqmUeOY8SEkpa7x6YKNSAcwv2UDksHrt0Ht5DxBlHshnzdoOKUS8P6k%3D

X-Cfworker

Other

1

X-Clerk-Trace-Id

Other

7670409da5346bee6b6a9c1cea1f082c

X-Cloud-Trace-Context

Other

7670409da5346bee6b6a9c1cea1f082c

X-Country

Other

US

X-Robots-Tag

Other

noindex, nofollow

cf-cache-status: DYNAMIC
cf-ray: 9fad0e528c39e642-IAD
date: Tue, 12 May 2026 23:03:18 GMT
nel: {"success_fraction":0.01,"report_to":"cf-nel","max_age":604800}
report-to: {"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=A15lFkEvlU4UFsCNHQ0l0eDIwgqDyG7V1LmZIyNohPptZB5cLMIsRP7%2Bhg0pIg1lv9ckAmO9jqmUeOY8SEkpa7x6YKNSAcwv2UDksHrt0Ht5DxBlHshnzdoOKUS8P6k%3D"}],"group":"cf-nel","max_age":604800}
x-cfworker: 1
x-clerk-trace-id: 7670409da5346bee6b6a9c1cea1f082c
x-cloud-trace-context: 7670409da5346bee6b6a9c1cea1f082c
x-country: US
x-robots-tag: noindex, nofollow

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching