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2020-06-18T11:21:00Z

How does a CDN protect against DDoS attacks?

37

How do CDNs work to mitigate threats?

ITCS user
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22 Answers

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Top 5LeaderboardReal User

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)

2021-02-10T08:22:26Z
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User

Because the CDN have normally a WAF, a reverse proxy and a lot of locations to replicate in miliseconds your site. I know Cloudflare better and this is the response can I answer you.

2020-06-19T02:50:25Z
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