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Hello everyone, I’m about to apply some custom rules on the WAF. Before doing so, I’m wondering if this could have an impact on performance. Is this something I should be concerned about, or is it negligible?
For instance, I’m planning to filter out clearly malicious traffic trying to access non-existent resources.
Thanks!
Thank you for asking.
It happens very very quick, negligible for most use cases unless you have a very high volume of traffic and some real complex WAF rules on Enterprise plan with regex.
However, even then I doubt it’ll make some difference in e.g. 1ms or less for your Website visitors.
Cloudflare uses highly optimized infrastructure to handle WAF processing, so the impact on performance is usually very low or none, compared to doing it on your own server where it’ll for sure cause some downtime and stuttering when serving pages to your Website visitors.
It shouldn’t affect performance of your Website at all.
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