What IP address and user agent does Silktide use?
Silktide's testing browsers run on AWS and normally use a large, dynamic set of IP addresses. Allowlisting the entire range is usually impractical.
Prefer a proxy under the website's Advanced settings so testing comes from a small set of known Silktide IP addresses. You can also customise the user-agent suffix so server logs can identify Silktide.
Full details: Where Silktide connects from. Proxy and user-agent are also the usual levers when a website will not test because of bot protection.