WebPerf Google dropping SPDY in favor of HTTP 2

Yeah that is a concern.. so you have double checked your Google Analytics stats for Android native browser usage ?

 

yeah 8.67% is quite a bit..

for centminmod.com Android browser is 0.5% with 6.28% mobile and 1.69% tablet based overall

for the forums Android browser is 0.24% with 3.84% mobile and 1.08% tablet based overall

 

caniuse can add geographical region stats too

Updated my Nginx HTTP/2 page with them

Asia has lowest compatibility rates for both SPDY and HTTP/2

 

• Cloudflare playing with HTTP/2 Test all the things: IPv6, HTTP/2, SHA-2
• Daniel Stenberg and HTTP/2 HTTP/2 – 115 days with the RFC | daniel.haxx.se

for @RoldanLT and concerns over Android browser and HTTP/2

 

nice reading

• http2 explained
• http2 concepts | http2 explained

 

HTTP/2 Will Break Your Security – Here’s How to Fix it | Radware Blog

 

it's a CDN so loaded images are geographically dependent on visitor's location, so it could be connection between you and their cdn location was slow for some reason
@RoldanLT had or has same problem with that test

 

7 Tips for Faster HTTP/2 Performance - NGINX

 

May 2016 is SPDY end date Chromium Blog: Transitioning from SPDY to HTTP/2

 

yes regular ssl certificates like positive ssl over cover main domain.com and www version of the domain. If you want to cover subdomain.domain.com you need a separate regular ssl certificate and use the subdomain.domain.com as the common name or use an ssl wildcard certificate which covers main domain and all *.domain.com subdomains. Centminmod.com uses SSL wildcard to cover over 100+ subdomains on *.centminmod.com

Yes you can use Let's Encrypt - Centmin Mod will eventually have stable Letsencrypt integration and is currently being tested in separate experimental branch 123.09beta01le4 and Centmin Mod Nginx is already HTTP/2 by default. See Letsencrypt Free SSL Certificates and SSL - Centmin Mod Letsencrypt Branch testing discussions | Centmin Mod Community

Cloudflare can use free SSL with HTTP/2 support but you'd have to move your domain's dns over to them

 

not entirely as free Cloudflare SSL is ECDSA based and winxp and other tools maybe not support it i.e. some lower versions of curl <7.36 unless you update it Wordpress - wp-cron SSL connect error with Cloudflare SSL ECDSA | Centmin Mod Community So may need paid version of Cloudflare plan so you can have wider compatibility based SSL certificate

and Let's encrypt SSL doesn't support WinXP either.