This diagnostic tool is for website administrators and owners who use a Content Delivery Network (CDN). It specifically analyzes and reports on connection failures between the CDN's edge servers and the site's original hosting server, helping to pinpoint the source of downtime or accessibility issues.

• Error Identification: Clearly labels the specific connection failure (e.g., Error 520) and identifies which network component—the CDN node or the origin server—is unreachable.
• Targeted Guidance: Provides separate, actionable instructions for website visitors (e.g., 'try again later') and for the site owner or administrator, avoiding confusion.
• Configuration Checks: Directs site owners to verify critical settings in their CDN configuration, such as the Connection Type to Origin and the Server IP address, which are common points of failure.
• Clear Problem Statement: Explains the error in plain language, stating that the CDN nodes were unable to reach the website’s origin server, which helps in rapid diagnosis.