IT Blog

Spam bots and denial-of-service attacks are a reality for many website owners. Depending on timing and scale, they can be an annoyance or a detriment to your business’s bottom line. Services like Cloudflare, Fastly, and Vercel are popular choices for mitigating these attacks with sophisticated techniques beyond the firewall rules many hosts (WordPress.com included) employ to examine and potentially block incoming traffic.

WordPress.com’s defensive mode introduces similar, sophisticated DDoS protection that further enhances your site’s security. It works by issuing proof-of-work challenges to browsers visiting the site. Legitimate users will briefly see a challenge page while their browser completes the work before accessing the site. The feature is powered by our global edge network, but it can still be enabled independently of our global edge cache feature.

What is defensive mode?

If you notice an inordinate amount of traffic to your website that is slowing it…