HTTP Headers Analysis for https://moje.cert.pl

Detected Technologies from Headers

See all in URL Inspect 3

Cloudflare NEL Monitoring

Cloudflare CDN

jsDelivr

HTTP Security Headers

Status

Strict-Transport-Security

Present

max-age=2592000

Content-Security-Policy

Strong

connect-src; script-src; img-src; +1 more Analyze

Content-Security-Policy-Report-Only

Missing

Not configured Analyze

X-Frame-Options

Excellent

DENY

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Present

same-origin

Permissions-Policy

Missing

Not configured

Recommendations

• Increase HSTS max-age to at least 1 year and add includeSubDomains
• Consider adding Permissions-Policy to control browser features

Performance Headers

Connection

Performance

close

Transfer-Encoding

Performance

chunked

Vary

Performance

Cookie, accept-encoding

connection: close
transfer-encoding: chunked
vary: Cookie, accept-encoding

Caching Headers

No caching headers found

Content Headers

Content-Type

Content

text/html; charset=utf-8

content-type: text/html; charset=utf-8

Server Headers

Server

cloudflare

server: cloudflare

CORS Headers

No CORS headers found

Cookies Headers

Set-Cookie

Cookies

set-cookie: sessionid=ls7nczzjq0g422n8m47yrg07l9nznzwl; expires=Fri, 18 Sep 2026 09:30:22 GMT; HttpOnly; Max-Age=1209600; Path=/; SameSite=Lax; Secure

Other Headers

Cf-Cache-Status

Other

DYNAMIC

Cf-Ray

Other

a35bf9a0498a8224-IAD

Date

Other

Fri, 04 Sep 2026 09:30:22 GMT

Nel

Other

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

success: 0.0%

Report-To

Other

Group cf-nel max-age: 1w

Endpoint 1 https://a.nel.cloudflare.com/report/v4?s=K1hxsyMqZiIL1IyLPB8UoSyeB0ZWMXrTMQSkYib0kEQL1vLOKG33h1JQuBLdzYZh8TUpK7066Moxqo%2BI5VnU0GTiWaqdUO2KDC2txwY4EouqOuv944HcMKGofZzUDg%3D%3D

X-Username

Other

cf-cache-status: DYNAMIC
cf-ray: a35bf9a0498a8224-IAD
date: Fri, 04 Sep 2026 09:30:22 GMT
nel: {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
report-to: {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=K1hxsyMqZiIL1IyLPB8UoSyeB0ZWMXrTMQSkYib0kEQL1vLOKG33h1JQuBLdzYZh8TUpK7066Moxqo%2BI5VnU0GTiWaqdUO2KDC2txwY4EouqOuv944HcMKGofZzUDg%3D%3D"}]}
x-username:

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching