📄️403 Error Troubleshooting Guide

This guide covers the most common causes of 403 Forbidden errors on a website and how to resolve them.

📄️502 Error Troubleshooting Guide

This guide explains the most common causes of 502 Bad Gateway errors and how to fix them.

📄️Domain Shows Default Page

When you add a domain to OpenPanel, it will initially display the following message:

📄️504 Error Troubleshooting Guide

This guide explains the most common causes of 504 Gateway Timeout errors and how to fix them.

📄️Adding Additional Hosts to SPF Records

To include a specific host in SPF records across all domains, follow the instructions below.

📄️Configure Nameservers

Before adding any domains, it is important to first create nameservers to ensure valid DNS zone files and proper propagation.

📄️How to Enable HSTS on a Domain in OpenPanel

HSTS (HTTP Strict Transport Security) can be enabled either globally for all domains or individually for specific domains in OpenPanel.

📄️DNS Clustering

DNS clustering enables you to synchronize DNS records across multiple OpenPanel servers, providing redundancy and scalability for your DNS infrastructure.

📄️404 Error Troubleshooting Guide

This guide explains the most common causes of 404 Not Found errors on a website and how to resolve them.

📄️Speed up DNS propagation

DNS propagation cannot be speed up.

📄️Troubleshooting Guide: Caddy / Let’s Encrypt SSL Validation Failure

Issue

📄️Troubleshooting DNS

Make sure the DNS-server on the host server responds to requests for the domain zone: