front page is not updated when new posts are published

when publishing new posts on my site tecnobits.xyz the home page is not updated, instead shows the home page that has been saved in the browser cache. therefore users must reload the page or press F5 each time they want to view the current version of the home page.

since I upload new content to the site every day I need to update the home page automatically every time there are new posts published.

I must add that I use cloudflare, litespeed and autoptimize, but even deactivating the 3 the problem continues to occur.

When I examine the http headers of my site, I see this:

HTTP/1.1 200 OK =>
Date => Fri, 01 Nov 2019 18:13:26 GMT
Content-Type => text/html; charset=UTF-8
Connection => close
Set-Cookie => __cfduid=d0e505dddbc28a4e6e51525310f889e481572632006; expires=Sat, 31-Oct-20 18:13:26 GMT; path=/; domain=.tecnobits.xyz; HttpOnly; Secure
Cache-Control => public, max-age=2592000
Cf-Railgun => direct (starting new WAN connection)
Expires => Sun, 01 Dec 2019 16:54:47 GMT
Last-Modified => Fri, 01 Nov 2019 16:53:04 GMT
Link => ; rel=shortlink
Vary => Accept-Encoding
X-Litespeed-Cache => hit
X-Powered-By => PHP/7.0.33
X-Turbo-Charged-By => LiteSpeed
CF-Cache-Status => DYNAMIC
Expect-CT => max-age=604800, report-uri=”https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct”
Server => cloudflare
CF-RAY => 52efd7b5fb1b9f5e-IAD

someone else has this problem? I would like to know if this is a bug of the theme, incompatibility with a plugin cache or something else