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Content delivery networks (CDN) are increasing in popularity among all kinds of businesses and website owners, who use CDNs as a way of increasing the performance and security of their websites. The best known and most used CDN provider is Cloudflare. If you are using Cloudflare’s CDN and you also want to monitor your website with Conductor Monitoring, it can happen that our crawlers get blocked by Cloudflare’s firewall. If this happens, Conductor Monitoring is not able to access and monitor your website.

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Ensuring Conductor Monitoring’s access to your website

To ensure that Conductor Monitoring can access and monitor your website, you need to whitelist all of our crawl IP addresses in your Cloudflare account. You can find Conductor Monitoring’s crawl IP addresses in this support article.

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How to whitelist Conductor Monitoring’s IP addresses in Cloudflare

You’ll need to create custom rules in Cloudflare’s dashboard to allow Conductor Monitoring’s IP addresses. You can learn how to do this in their documentation. After whitelisting the IP addresses, Conductor Monitoring will be able to access your website and monitor it properly.

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IP address ranges

As of now, Cloudflare only supports subnets with a minimum of 254 IP addresses (subnet mask /24 and lower). Our IP address ranges use the /27 and /28 subnet masks which are not supported by Cloudflare at this moment. Therefore, our IP addresses need to be entered with the /24 subnet mask. Example: one of our crawl IP address ranges is 89.149.192.96/27. This needs to be listed in your Cloudflare account as 89.149.192.96/24. For more information about Cloudflare’s IP Access Rules you can also refer to Cloudflare’s support documentation on this matter. In case of any questions don’t hesitate to contact us.