---
title: "DDoS Attack"
description: "A DDoS (Distributed Denial of Service) attack is a malicious attempt to overwhelm a server with traffic from multiple sources, making a website unavailable to legitimate users."
category: "Web Security & Infrastructure"
date: "2026-03-05"
url: "https://getbeast.io/glossary/ddos-attack/"
type: "glossary"
---

# DDoS Attack

**Category:** Web Security & Infrastructure | **Updated:** 2026-03-05

A DDoS (Distributed Denial of Service) attack is a malicious attempt to overwhelm a server with traffic from multiple sources, making a website unavailable to legitimate users.

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## What Is a DDoS Attack?
A Distributed Denial of Service (DDoS) attack floods a web server with massive amounts of traffic from many compromised devices (a botnet), overwhelming its capacity to serve legitimate requests. Attack types include volumetric attacks (bandwidth flooding), protocol attacks (SYN floods), and application-layer attacks (HTTP floods targeting specific pages).

## Why DDoS Attacks Matter for SEO
A DDoS attack that takes your site offline directly harms SEO. If Googlebot encounters errors or timeouts during an attack, it may reduce your crawl rate or even temporarily deindex pages. Prolonged downtime signals to search engines that your site is unreliable. DDoS attacks can also be disguised as aggressive bot crawling.

## How to Detect and Mitigate DDoS
Monitor server logs for sudden traffic spikes from unusual sources. Use a CDN with DDoS protection (Cloudflare, AWS Shield). Implement rate limiting and WAF rules. Analyze attack patterns in [LogBeast](/logbeast/) to distinguish DDoS traffic from legitimate bot activity.

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## Related Terms

- [WAF](/glossary/waf/)
- [Rate Limiting](/glossary/rate-limiting/)
- [CDN](/glossary/cdn/)
- [Bot Detection](/glossary/bot-detection/)
- [Server Response Time](/glossary/server-response-time/)

## Further Reading

- [DDoS Detection and Mitigation](/blog/ddos-detection/)

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*Part of the [GetBeast SEO Glossary](/glossary/). Visit [GetBeast.io](https://getbeast.io) for professional SEO and log analysis tools.*