HTTP Headers report for cocalc.com

Header Name	Header Data
HTTP status code	200
Connection	keep-alive
X-Content-Type-Options	nosniff
X-Xss-Protection	1; mode=block
Permissions-Policy	camera=, fullscreen=(self), microphone=
Report-To	{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v4?s=4GIdNB%2F3cwPPUwrg%2BIg5U4UD7phGfgDmSkpWk%2BhNvfnJ5SeBUid86gwaw9siYxoYOmzl3HXoywyEf4UEyqq7gMFiZH8UnHpfceCwhZNyVQ2W%2BIv9ZVT2Q0GcA%2Bw%3D"}],"group":"cf-nel","max_age":604800}
Cf-Ray	931e0be32a6f9819-AMS
Date	Thu, 17 Apr 2025 18:39:40 GMT
Set-Cookie	connect.sid=s%3AsNMvXxgeMMDjKRqHiXUfpDBb7pSFo1QH.kEUm9Ud5JZLvBN%2BWiC11SbOncr6LzPhLg%2BSOsbarDXo; Path=/; HttpOnly
Referrer-Policy	strict-origin-when-cross-origin
Cf-Cache-Status	DYNAMIC
Nel	{"success_fraction":0,"report_to":"cf-nel","max_age":604800}
Content-Type	text/html; charset=utf-8
Cache-Control	private, no-cache, no-store, max-age=0, must-revalidate
Vary	Accept-Encoding
Content-Security-Policy	frame-ancestors 'self' https://.minervaproject.com https://.kgi.edu https://dev.harald.schil.ly https://.doulos.com https://.codesignal.com https://roamresearch.com;
Strict-Transport-Security	max-age=31536000; includeSubdomains; preload
Server	cloudflare
Server-Timing	cfL4;desc="?proto=TCP&rtt=1219&min_rtt=1185&rtt_var=367&sent=5&recv=8&lost=0&retrans=0&sent_bytes=4184&recv_bytes=1809&delivery_rate=3364833&cwnd=245&unsent_bytes=0&cid=6fa0e2705f4e5a3c&ts=512&x=0"

About the tool

By using SecurityHeaders.info, you can quickly identify missing or misconfigured headers and take steps to secure your website, improving both security and user confidence.

This tool is widely used by developers, security professionals, and organizations to ensure their websites adhere to best practices in web security.

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