What does a DDoS attack look like in real time?

Server load spikes sans user growth. Weird user agents. Hits on logins/APIs. JS trackers flat while requests explode.

How does Cloudflare stop a DDoS attack?

Under Attack Mode challenges bots. Rate limits paths. Caches static. Backend chills at 5% load.

Can small websites prevent DDoS attacks completely?

Nope. Mitigate? Absolutely—with Cloudflare rules, caching, alerts. Goal: real users win.

DDoS Hell: How Zerlo.net Survived the Flood (And What You'd Do Wrong)

Everyone thinks DDoS hits are for big corps only. Wrong. Zerlo.net crumbled under fake traffic, but Cloudflare's Under Attack Mode slashed load to 5%. Here's the gritty playbook.

Dev Digest Apr 12, 2026 3 min read

Graph showing DDoS traffic spike and Cloudflare mitigation drop on Zerlo.net dashboard

⚡ Key Takeaways

JS interaction mismatch = instant DDoS clue. Test local load next. 𝕏
Cloudflare Under Attack Mode drops load to 5%—flip it fast. 𝕏
Harden post-attack: WAF, rate limits, Turnstile on forms. Logs save lives. 𝕏

Written by

Sarah Chen

AI research editor covering LLMs, benchmarks, and the race between frontier labs. Previously at MIT CSAIL.

#Cloudflare mitigation #Cloudflare protection #DDoS attack #Layer 7 attacks #server load spikes #server overload #website-security

Worth sharing?

Get the best Developer Tools stories of the week in your inbox — no noise, no spam.

Originally reported by dev.to

⚡ Key Takeaways

The 60-Second TL;DR

Sarah Chen

Share this article

Worth sharing?

Related Stories

79% of Requests to Your Site Aren't Humans – Raw Logs Don't Lie

Fake Token Hijacks Solana's Drift Governance — $285M Gone in 12 Minutes

Claude Code's 30-Minute Feature Factory: The Workflow That Outpaces Solo Devs in 2026

JGuardrails: Java's New Shield Against LLM Prompt Injection Mayhem

Stay in the loop