Web devs need to know the http headers their apps/webpages. This can be easily achieved using a browser plugin for Chrome or Firefox. But I prefer to use the command terminal, and curl makes this really easy.
curl -I andrewbaker.ninja
HTTP/1.1 302 Found
Date: Thu, 17 Nov 2022 14:01:53 GMT
Server: Apache
X-Frame-Options: SAMEORIGIN
Location: https://andrewbaker.ninja/
Connection: close
Content-Type: text/html; charset=iso-8859-1
## Alternative
url --head https://andrewbaker.ninja
HTTP/1.1 200 OK
Date: Thu, 17 Nov 2022 14:08:36 GMT
Server: Apache
X-Powered-By: PHP/7.3.18
Link: <https://andrewbaker.ninja/wp-json/>; rel="https://api.w.org/", <https://andrewbaker.ninja/wp-json/wp/v2/pages/78>; rel="alternate"; type="application/json", <https://andrewbaker.ninja/>; rel=shortlink
X-Frame-Options: SAMEORIGIN
Cache-Control: max-age=0, no-cache
Connection: close
Content-Type: text/html; charset=UTF-8