ArvanCloud is a cloud services provider, offering a wide range of incorporated cloud services including CDN, DDoS mitigation, Cloud Managed DNS, Cloud Security, VoD/AoD Streaming, Live Streaming, Cloud Compute, Cloud Object Storage, and PaaS.
PHP is a general-purpose scripting language used for web development.
reCAPTCHA is a free service from Google that helps protect websites from spam and abuse.