Notification Alerts for Cloudflare IPs ranges update

[vicheth.sim]

What is the name of the domain?

.

What is the issue you’re encountering

I currently don’t have any issues but would like to check if anyone knows how many days in advance Cloudflare sends email notifications before updating their IP ranges on their website. According to this URL: IP Ranges,

What steps have you taken to resolve the issue?

Hi there,

I currently don’t have any issues but would like to check if anyone knows how many days in advance Cloudflare sends email notifications before updating their IP ranges on their website.

According to this URL: IP Ranges,

We have security rules in place to allow these IP ranges into our applications, and we want to ensure that our application continues to work properly in the event of any updates to these IP ranges.

[mcorreia]

Hi there,

Very rarely those IP ranges are changed, in fact you can see in the update history, the last change was on Sep 28, 2023 when a new IPv6 CIDR was added.

Having said this, the best way to monitor is to have a system on your end checking regularly for updates.
You can either have a regular api call

curl --request GET \
  --url https://api.cloudflare.com/client/v4/ips \
  --header 'Content-Type: application/json'

Or a simple web monitor getting the contents of https://www.cloudflare.com/ips-v4/ and https://www.cloudflare.com/ips-v6/

Take care.