In order to allow our scanner to test your website, you might have to whitelist our IP addresses. We are using Amazon as our provider and our data centres are located in Ireland.
We currently have two IPs allocated, so these are the addresses you need to whitelist for us to be able to scan your domain:
If the scanner does not resolve your site even after whitelisting the above IP addresses, you might also want to check that you are not blocking the scanner's default or custom user agent. It is possible to customize the scanner's user agent on the Scan Settings page.