This diagnostic tool identifies the specific cause of the 526 error, which prevents visitors from accessing a website due to an invalid SSL certificate. It is for website owners and administrators who need to troubleshoot and resolve this critical security and availability issue.

• Error Diagnosis: Clearly states the problem: the origin server lacks a valid SSL certificate, which could be expired or misconfigured for the domain.
• Actionable Guidance: Provides direct steps for website owners, instructing them to contact their hosting provider to install an up-to-date, valid certificate from a recognized Certificate Authority.
• Visitor Information: Offers clear, temporary instructions for site visitors, advising them to try again later while the owner addresses the backend issue.
• Technical Details: Includes reference information like the Cloudflare Ray ID and timestamp, which are useful for support teams when investigating the incident further.