Headers of https://expressjs.com/en/starter/hello-world.html

HTTP/1.1 200 OK
Date
Thu, 06 Jun 2019 04:58:37 GMT
Content-Type
text/html; charset=utf-8
Connection
close
Set-Cookie
__cfduid=d4ef2b70eb9fd9e9013965fb852ad1c8a1559797117; expires=Fri, 05-Jun-20 04:58:37 GMT; path=/; domain=.expressjs.com; HttpOnly
Last-Modified
Mon, 27 May 2019 02:47:47 GMT
Vary
Accept-Encoding
Access-Control-Allow-Origin
*
Expires
Thu, 06 Jun 2019 05:01:03 GMT
Cache-Control
max-age=600
X-GitHub-Request-Id
697A:45FA:F4F75:14254A:5CF89D7D
Expect-CT
max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"
Server
cloudflare
CF-RAY
4e27cff2eb259f8e-IAD