HTTP/2 with Ubuntu 18.04 - upgrade

Question

I would like to try HTTP/2 on this site: https://www.alebalweb-blog.com/
I recently updated the server to Ubuntu 18.04 with PHP 7.2, Apache/2.4.29, etc,etc
I did: sudo a2enmod http2
Added:
#HTTP/2
Protocols h2 h2c http/1.1
In my VirtualHost SSL.
and restarted Apache.
The SSL certificate is provided by Let's Encrypt.
The result is:
curl -k -v --http2 https://alebalweb-blog.com
* Rebuilt URL to: https://alebalweb-blog.com/
* Trying 45.76.70.142...
* TCP_NODELAY set
* Connected to alebalweb-blog.com (45.76.70.142) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Client hello (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-CHACHA20-POLY1305
* ALPN, server accepted to use http/1.1
* Server certificate:
* subject: CN=alebalweb-blog.com
* start date: Jul 7 02:02:06 2018 GMT
* expire date: Oct 5 02:02:06 2018 GMT
* issuer: C=US; O=Let's Encrypt; CN=Let's Encrypt Authority X3
* SSL certificate verify ok.
> GET / HTTP/1.1
> Host: alebalweb-blog.com
> User-Agent: curl/7.58.0
> Accept: */*
>
< HTTP/1.1 200 OK
< Date: Fri, 13 Jul 2018 21:51:22 GMT
< Server: Apache/2.4.29 (Ubuntu)
< Upgrade: h2,h2c
< Connection: Upgrade
< Cache-Control: max-age=300
< Expires: Fri, 13 Jul 2018 21:56:22 GMT
< Vary: Accept-Encoding,User-Agent
< Transfer-Encoding: chunked
< Content-Type: text/html; charset=UTF-8
Really strange I think is this:
Upgrade: h2,h2c
Connection: Upgrade
What does it mean?
HTTP/2 Test says:
HTTP/2 Test Result www.alebalweb-blog.com
Negative! www.alebalweb-blog.com does not support HTTP/2.0.
ALPN is not supported.
I feel like I missed something big... can you help me understand what?

Answer 1

I think I solved by switching to PHP-FPM
I used these codes:
apachectl stop
apt-get install php7.1-fpm # Install the php-fpm from your PHP repository. This package name depends on the vendor.
a2enmod proxy_fcgi setenvif
a2enconf php7.1-fpm # Again, this depends on your PHP vendor.
a2dismod php7.1 # This disables mod_php.
a2dismod mpm_prefork # This disables the prefork MPM. Only one MPM can run at a time.
a2enmod mpm_event # Enable event MPM. You could also enable mpm_worker.
apachectl start
from this guide: https://http2.pro/doc/Apache
and this guide: https://techwombat.com/enable-http2-apache-ubuntu-16-04/
and added "Protocols h2 h2c http/1.1" at the end of /etc/apache2/apache2.conf
Now the command curl -k -v --http2 https://alebalweb-blog.com reports this:
curl -k -v --http2 https://alebalweb-blog.com
* Rebuilt URL to: https://alebalweb-blog.com/
* Trying 45.76.70.142...
* TCP_NODELAY set
* Connected to alebalweb-blog.com (45.76.70.142) port 443 (#0)
* ALPN, offering h2
* ALPN, offering http/1.1
* successfully set certificate verify locations:
* CAfile: /etc/ssl/certs/ca-certificates.crt
CApath: /etc/ssl/certs
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
* TLSv1.2 (IN), TLS handshake, Server hello (2):
* TLSv1.2 (IN), TLS handshake, Certificate (11):
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
* TLSv1.2 (IN), TLS handshake, Server finished (14):
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
* TLSv1.2 (OUT), TLS change cipher, Client hello (1):
* TLSv1.2 (OUT), TLS handshake, Finished (20):
* TLSv1.2 (IN), TLS handshake, Finished (20):
* SSL connection using TLSv1.2 / ECDHE-RSA-CHACHA20-POLY1305
* ALPN, server accepted to use h2
* Server certificate:
* subject: CN=alebalweb-blog.com
* start date: Jul 7 02:02:06 2018 GMT
* expire date: Oct 5 02:02:06 2018 GMT
* issuer: C=US; O=Let's Encrypt; CN=Let's Encrypt Authority X3
* SSL certificate verify ok.
* Using HTTP2, server supports multi-use
* Connection state changed (HTTP/2 confirmed)
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
* Using Stream ID: 1 (easy handle 0x556ec5957940)
> GET / HTTP/2
> Host: alebalweb-blog.com
> User-Agent: curl/7.58.0
> Accept: */*
>
* Connection state changed (MAX_CONCURRENT_STREAMS updated)!
< HTTP/2 200
< date: Thu, 19 Jul 2018 20:21:38 GMT
< server: Apache/2.4.34 (Ubuntu)
< cache-control: max-age=300
< expires: Thu, 19 Jul 2018 20:26:38 GMT
< vary: Accept-Encoding,User-Agent
< content-type: text/html; charset=UTF-8
Above all you notice this changes: ALPN, server accepted to use h2, and HTTP/2 200
The site https://tools.keycdn.com/http2-test, says:
Yeah! www.alebalweb-blog.com supports HTTP/2.0.
ALPN supported.
And the development tools of opera and chrome indicate: h2
I only have one last doubt, in Google Webmaster tools, fetching the page as Google, I see this:
HTTP/1.1 200 OK
Date: Thu, 19 Jul 2018 20:35:35 GMT
Server: Apache/2.4.34 (Ubuntu)
Upgrade: h2,h2c
Connection: Upgrade, Keep-Alive
Cache-Control: max-age=300
Expires: Thu, 19 Jul 2018 20:40:35 GMT
Vary: Accept-Encoding,User-Agent
Content-Type: text/html; charset=UTF-8
Content-Length: 41422
Keep-Alive: timeout=5, max=100
I missing something? Or maybe need time?