View Browser Caching NGINX sites-available
. . .
# Default server configuration
# Expires map
map $sent_http_content_type $expires {
default off;
text/html epoch;
text/css max;
application/javascript max;
View Abilitare il Browser Caching su NGINX
server {
listen 80;
server_name localhost;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
location ~* \.(jpg|jpeg|png|gif|ico|css|js)$ {
View ExpiresByType Directive
# enable expirations
ExpiresActive On
# expire GIF images after a month in the client's cache
ExpiresByType image/gif A2592000
# HTML documents are good for a week from the
# time they were changed
ExpiresByType text/html M604800
View Google follows JS links
View Hreflang x-default
<link rel="alternate" href="" hreflang="x-default" />
View Esempio hreflang
<link rel="alternate" href="" hreflang="en-ie" />
<link rel="alternate" href="" hreflang="en-ca" />
<link rel="alternate" href="" hreflang="en-au" />
<link rel="alternate" href="" hreflang="en" />
View Canonical & hreflang
<link rel="canonical" href="" />
<link rel="alternate" type="text/html" hreflang="en-gb" href="" title="English (UK)"/>
<link rel="alternate" type="text/html" hreflang="en-us" href="" title="English (US)"/>
<link rel="alternate" type="text/html" hreflang="de" href="" title="Deutsch"/>
<link rel="alternate" type="text/html" hreflang="nl" href="" title="Nederlands"/>
<link rel="alternate" type="text/html" hreflang="fr" href="" title="Français"/>
<link rel="alternate" type="text/html" hreflang="es" href="" title="Español"/>
<link rel="alternate" type="text/html" hreflang="es-ar" href="" title="Español (AR)"/>
<link rel="alternate" type="text/html" hreflang="ca" href="htt
View Meta Tag Language
<meta http-equiv="content-language" content="en-us" />
View Hreflang nella Sitemap.xml
<?xml version="1.0" encoding="UTF-8"?>
<urlset xmlns=""
View Intestazione HTTP con hrelang
# valore hreflang singolo
Link: <>; rel="alternate"; hreflang="ithrelang "
# valori hreflang multipli
Link: <>; rel="alternate"; hreflang="it",<>; rel="alternate"; hreflang="de"