HTTP Headers Analysis for https://schoolmanager.pl

Detected Technologies from Headers

See all in URL Inspect 2

Google Fonts

Nginx

HTTP Security Headers

Status

Strict-Transport-Security

Excellent

max-age=31536000; includeSubDomains; preload

Content-Security-Policy

Missing

Not configured Analyze

Content-Security-Policy-Report-Only

Basic

default-src; script-src; style-src; +4 more Analyze

X-Frame-Options

Good

SAMEORIGIN

X-Content-Type-Options

Good

nosniff

Referrer-Policy

Good

strict-origin-when-cross-origin

Permissions-Policy

Present

geolocation=(), microphone=(), camera=()

Recommendations

• Add Content-Security-Policy header to prevent XSS attacks

Performance Headers

Accept-Ranges

Performance

bytes

accept-ranges: bytes

Caching Headers

Etag

Caching

"69b2ca51-b387"

Last-Modified

Caching

Thu, 12 Mar 2026 14:14:41 GMT

etag: "69b2ca51-b387"
last-modified: Thu, 12 Mar 2026 14:14:41 GMT

Content Headers

Content-Length

Content

45959

Content-Type

Content

text/html

content-length: 45959
content-type: text/html

Server Headers

Server

nginx/1.26.3

server: nginx/1.26.3

CORS Headers

No CORS headers found

Cookies Headers

No cookies headers found

Other Headers

Date

Other

Tue, 03 Nov 2026 18:31:25 GMT

date: Tue, 03 Nov 2026 18:31:25 GMT

Recommendations

Enable compression (gzip/brotli) to improve performance

Add Cache-Control header to optimize caching