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2020-07-21T02:07:00Z

If I have a CDN, do I have to worry about DDoS attacks?

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If you have a CDN, does it mean you don't have to worry about DDoS attacks or will hackers still succeed in carrying out DDoS attacks? 

I'm a VAR/System Integrator and I don't see any problem once you have Cloudflare.

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22 Answers

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CDN is not going to help you to avoid DDoS. The main function of a CDN is to deliver content faster. To mitigate the risk of a DDoS you need a Web Application Firewall (WAF). Todays WAF come with CDN capabilities.

2020-07-21T13:19:02Z
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Layer 3 or 4 DDoS are absorbed by the CDN as design (IP, TCP ,UDP), the high volume doesn't reach your origin server so you are automatically protected.


But in case of layer 7 DDoS, all application attacks (SQL injections, XSS, Remote file inclusion), you need a Web Application Firewall (WAF) to protect against this kind of threat, the CDN will not "see" and of course not block these attacks (and it's not his role)

2021-02-10T08:21:38Z
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