diff --git a/defaults/main.yml b/defaults/main.yml
index 5407b58..5e204e0 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -2,4 +2,3 @@
 # Default values for variables of the role
 # variable_name: value
 letsencrypt_account_email: certs@example.org
-domain: example.org
diff --git a/tasks/configure_prometheus_exporters_certificates.yml b/tasks/configure_prometheus_exporters_certificates.yml
index 2f9a724..0a9e8d8 100644
--- a/tasks/configure_prometheus_exporters_certificates.yml
+++ b/tasks/configure_prometheus_exporters_certificates.yml
@@ -23,11 +23,11 @@
     state: stopped
 
 - name: Request certificate for node-metrics
-  shell: "certbot certonly --agree-tos --email {{ letsencrypt_account_email }} --standalone -n -d node-metrics-{{ inventory_hostname }}.{{ domain }}"
+  shell: "certbot certonly --agree-tos --email {{ letsencrypt_account_email }} --standalone -n -d node-metrics-{{ ansible_fqdn }}"
   args:
-    creates: "/etc/letsencrypt/live/node-metrics-{{ inventory_hostname }}/fullchain.pem"
+    creates: "/etc/letsencrypt/live/node-metrics-{{ ansible_fqdn }}/fullchain.pem"
 
 - name: Request certificate for postfix-metrics
-  shell: "certbot certonly --agree-tos --email {{ letsencrypt_account_email }} --standalone -n -d postfix-metrics-{{ inventory_hostname }}.{{ domain }}"
+  shell: "certbot certonly --agree-tos --email {{ letsencrypt_account_email }} --standalone -n -d postfix-metrics-{{ ansible_fqdn }}"
   args:
-    creates: "/etc/letsencrypt/live/postfix-metrics-{{ inventory_hostname }}/fullchain.pem"
+    creates: "/etc/letsencrypt/live/postfix-metrics-{{ ansible_fqdn }}/fullchain.pem"
diff --git a/templates/apache2.conf.j2 b/templates/apache2.conf.j2
index f4e9dee..29ec88c 100644
--- a/templates/apache2.conf.j2
+++ b/templates/apache2.conf.j2
@@ -1,36 +1,36 @@
 <VirtualHost *:80>
-  ServerName node-metrics-{{ inventory_hostname }}
-  DocumentRoot "/var/www/node-metrics-{{ inventory_hostname }}/"
-  <Directory "/var/www/node-metrics-{{ inventory_hostname }}/">
+  ServerName node-metrics-{{ ansible_fqdn }}
+  DocumentRoot "/var/www/node-metrics-{{ ansible_fqdn }}/"
+  <Directory "/var/www/node-metrics-{{ ansible_fqdn }}/">
     Options Indexes FollowSymLinks MultiViews
     AllowOverride None
     Require all granted
   </Directory>
-  ErrorLog "/var/log/apache2/node-metrics-{{ inventory_hostname }}_insecure_error.log"
+  ErrorLog "/var/log/apache2/node-metrics-{{ ansible_fqdn }}_insecure_error.log"
   ServerSignature Off
-  CustomLog "/var/log/apache2/node-metrics-{{ inventory_hostname }}_insecure_access.log" combined
-  Redirect permanent / https://node-metrics-{{ inventory_hostname }}/
+  CustomLog "/var/log/apache2/node-metrics-{{ ansible_fqdn }}_insecure_access.log" combined
+  Redirect permanent / https://node-metrics-{{ ansible_fqdn }}/
 </VirtualHost>
 
 <VirtualHost *:443>
-  ServerName node-metrics-{{ inventory_hostname }}
+  ServerName node-metrics-{{ ansible_fqdn }}
   ServerAdmin webmaster@susurrando.com
-  DocumentRoot "/var/www/node-metrics-{{ inventory_hostname }}/"
-  <Directory "/var/www/node-metrics-{{ inventory_hostname }}/">
+  DocumentRoot "/var/www/node-metrics-{{ ansible_fqdn }}/"
+  <Directory "/var/www/node-metrics-{{ ansible_fqdn }}/">
     Options -Indexes +FollowSymLinks
     AllowOverride None
     Require all granted
   </Directory>
-  ErrorLog "/var/log/apache2/node-metrics-{{ inventory_hostname }}_ssl_error_ssl.log"
+  ErrorLog "/var/log/apache2/node-metrics-{{ ansible_fqdn }}_ssl_error_ssl.log"
   ServerSignature Off
-  CustomLog "/var/log/apache2/node-metrics-{{ inventory_hostname }}_ssl_access_ssl.log" combined
+  CustomLog "/var/log/apache2/node-metrics-{{ ansible_fqdn }}_ssl_access_ssl.log" combined
   ErrorDocument 404 /notfound.php
   ErrorDocument 500 /error500.php
   ErrorDocument 503 /error503.php
   RewriteEngine On
   SSLEngine on
-  SSLCertificateFile      "/etc/letsencrypt/live/node-metrics-{{ inventory_hostname }}/fullchain.pem"
-  SSLCertificateKeyFile   "/etc/letsencrypt/live/node-metrics-{{ inventory_hostname }}/privkey.pem"
+  SSLCertificateFile      "/etc/letsencrypt/live/node-metrics-{{ ansible_fqdn }}/fullchain.pem"
+  SSLCertificateKeyFile   "/etc/letsencrypt/live/node-metrics-{{ ansible_fqdn }}/privkey.pem"
   SSLProtocol             all -SSLv3 -SSLv2 -TLSv1 -TLSv1.1
   SSLCipherSuite          ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA
   DefineExternalAuth mysqlauth pipe /usr/local/bin/mysql-auth.pl
@@ -40,42 +40,42 @@
 </VirtualHost>
 
 <VirtualHost *:80>
-  ServerName postfix-metrics-{{ inventory_hostname }}
-  DocumentRoot "/var/www/postfix-metrics-{{ inventory_hostname }}/"
-  <Directory "/var/www/postfix-metrics-{{ inventory_hostname }}/">
+  ServerName postfix-metrics-{{ ansible_fqdn }}
+  DocumentRoot "/var/www/postfix-metrics-{{ ansible_fqdn }}/"
+  <Directory "/var/www/postfix-metrics-{{ ansible_fqdn }}/">
     Options Indexes FollowSymLinks MultiViews
     AllowOverride None
     Require all granted
   </Directory>
-  ErrorLog "/var/log/apache2/postfix-metrics-{{ inventory_hostname }}_insecure_error.log"
+  ErrorLog "/var/log/apache2/postfix-metrics-{{ ansible_fqdn }}_insecure_error.log"
   ServerSignature Off
-  CustomLog "/var/log/apache2/postfix-metrics-{{ inventory_hostname }}_insecure_access.log" combined
-  Redirect permanent / https://postfix-metrics-{{ inventory_hostname }}/
+  CustomLog "/var/log/apache2/postfix-metrics-{{ ansible_fqdn }}_insecure_access.log" combined
+  Redirect permanent / https://postfix-metrics-{{ ansible_fqdn }}/
 </VirtualHost>
 
 <VirtualHost *:443>
-  ServerName postfix-metrics-{{ inventory_hostname }}
+  ServerName postfix-metrics-{{ ansible_fqdn }}
   ServerAdmin webmaster@susurrando.com
-  DocumentRoot "/var/www/postfix-metrics-{{ inventory_hostname }}/"
-  <Directory "/var/www/postfix-metrics-{{ inventory_hostname }}/">
+  DocumentRoot "/var/www/postfix-metrics-{{ ansible_fqdn }}/"
+  <Directory "/var/www/postfix-metrics-{{ ansible_fqdn }}/">
     Options -Indexes +FollowSymLinks
     AllowOverride None
     Require all granted
   </Directory>
-  ErrorLog "/var/log/apache2/postfix-metrics-{{ inventory_hostname }}_ssl_error_ssl.log"
+  ErrorLog "/var/log/apache2/postfix-metrics-{{ ansible_fqdn }}_ssl_error_ssl.log"
   ServerSignature Off
-  CustomLog "/var/log/apache2/postfix-metrics-{{ inventory_hostname }}_ssl_access_ssl.log" combined
+  CustomLog "/var/log/apache2/postfix-metrics-{{ ansible_fqdn }}_ssl_access_ssl.log" combined
   ErrorDocument 404 /notfound.php
   ErrorDocument 500 /error500.php
   ErrorDocument 503 /error503.php
   RewriteEngine On
   SSLEngine on
-  SSLCertificateFile      "/etc/letsencrypt/live/postfix-metrics-{{ inventory_hostname }}/fullchain.pem"
-  SSLCertificateKeyFile   "/etc/letsencrypt/live/postfix-metrics-{{ inventory_hostname }}/privkey.pem"
+  SSLCertificateFile      "/etc/letsencrypt/live/postfix-metrics-{{ ansible_fqdn }}/fullchain.pem"
+  SSLCertificateKeyFile   "/etc/letsencrypt/live/postfix-metrics-{{ ansible_fqdn }}/privkey.pem"
   SSLProtocol             all -SSLv3 -SSLv2 -TLSv1 -TLSv1.1
   SSLCipherSuite          ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:AES:CAMELLIA:DES-CBC3-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!MD5:!PSK:!aECDH:!EDH-DSS-DES-CBC3-SHA:!EDH-RSA-DES-CBC3-SHA:!KRB5-DES-CBC3-SHA
   DefineExternalAuth mysqlauth pipe /usr/local/bin/mysql-auth.pl
     SSLHonorCipherOrder     on
     ProxyPass / http://127.0.0.1:9154/
     ProxyPassReverse / http://127.0.0.1:9154/
-</VirtualHost>
\ No newline at end of file
+</VirtualHost>