Case Study: Classmethod protects Zenn, improves performance, and cuts costs with Cloudflare

Classmethod cuts CDN costs from ¥100,000 to a few thousand yen with Cloudflare

Classmethod, a cloud integrator running the Zenn technical blog platform, faced disruptive DDoS attacks that threatened performance and increased infrastructure costs. To strengthen security without incurring high expenses, they turned to vendor Cloudflare for its DDoS protection and Web Application Firewall (WAF).

By implementing Cloudflare's security suite, including DDoS mitigation, WAF, and CDN, Classmethod successfully blocked threats and reduced spam. The solution delivered significant cost savings, cutting CDN expenses from approximately ¥100,000 to a few thousand yen per month, while also automating defenses to save 90 minutes of operational time monthly.

Classmethod