An IP address

An IP address checks if the CloudFlare enabled on a site which overloads the CPU usage.

Log:

181.224.143.12 - - [09/Mar/2018:12:45:29 +0100] "HEAD /?wphb-check-cf=true HTTP/1.0" 200 - "https://www.k...-e....nl/?wphb-check-cf=true" "WordPress/4.9.4; https://domain"
181.224.143.12 - - [09/Mar/2018:12:45:29 +0100] "HEAD /?wphb-check-cf=true HTTP/1.0" 200 - "https://www.k...-el....nl/?wphb-check-cf=true" "WordPress/4.9.4; https://domain"
181.224.143.12 - - [09/Mar/2018:12:45:28 +0100] "POST /wp-cron.php?doing_wp_cron=1520595928.8951671123504638671875 HTTP/1.0" 200 - "https://domain/wp-cron.php?doing_wp_cron=1520595928.8951671123504638671875" "WordPress/4.9.4; https://domain"
181.224.143.12 - - [09/Mar/2018:12:45:29 +0100] "POST /wp-cron.php?doing_wp_cron=1520595928.9882509708404541015625 HTTP/1.0" 200 - "https://domain/wp-cron.php?doing_wp_cron=1520595928.9882509708404541015625" "WordPress/4.9.4; https://domain"
181.224.143.12 - - [09/Mar/2018:12:45:29 +0100] "HEAD /?wphb-check-cf=true HTTP/1.0" 200 - "https://domain/?wphb-check-cf=true" "WordPress/4.9.4; https://domain"

In one day that website executed over 207000 executions.