WAF advanced rate limit periods (65535 seconds)

I noticed with the WAF advanced rate limiting feature the period of rate limit had 2 new entries (1 day, and oddly 65535 seconds) around mid August.

I was used to a max 1 hour period with a 1 day max duration - so it's very much welcome!

But, I checked today and now only see 65535 seconds (not the 1 day which errored when trying to test it).

What is supported? Is it safe/reliable to use? Thanks

SuperHelpflare•9/4/25, 2:25 PM

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According to the documentation, the supported period values in seconds are: 10, 15, 20, 30, 40, 45, 60 (1 min), 90, 120 (2 min), 180 (3 min), 240 (4 min), 300 (5 min), 480, 600 (10 min), 900, 1200 (20 min), 1800, 2400, 3600 (1 h), 65535, 86400 (1 day). [1]

However, it seems that the 1 day option (86400 seconds) is not currently available, and only 65535 seconds is visible.

I would recommend checking the Cloudflare documentation or contacting Cloudflare support for the most up-to-date information on supported rate limiting periods and their reliability.

Source:
https://developers.cloudflare.com/learning-paths/application-security/rate-limiting/features/

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Dan | OutSessionOP•9/4/25, 2:28 PM

Just oddly named in the UI I guess (i.e. 65535 seconds and not 18 hours). Would be if 24 hours was an option too

WAF advanced rate limit periods (65535 seconds)

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