Introduction

Welcome to our guide on advanced domain mapping and SSL setup for WordPress Multisite. In this tutorial, we'll explore advanced techniques and best practices for managing multiple domains within a WordPress Multisite network while ensuring secure connections with SSL. You'll learn how to set up domain mapping, configure SSL certificates, and provide a seamless experience for your network's users.

1. WordPress Multisite Overview

Understand the basics of WordPress Multisite, its advantages, and why it's a powerful solution for managing multiple websites from a single WordPress installation.

Example of WordPress Multisite overview:

Create a Multisite network to manage multiple websites
Use subdomains or subdirectories for site organization
Learn about the shared codebase and database
            

2. Domain Mapping with Multisite

Explore advanced domain mapping techniques to allow each site within your Multisite network to have its own custom domain name.

Example of domain mapping with Multisite:

Configure domain mapping using plugins like "WordPress MU Domain Mapping"
Set up DNS records to point custom domains to your Multisite installation
Manage domain mapping settings for individual sites
            

3. SSL Setup for Multisite

Secure your Multisite network with SSL (Secure Sockets Layer) certificates to ensure encrypted connections and data protection.

Example of SSL setup for Multisite:

Acquire SSL certificates for your primary domain and custom domains
Use a Let's Encrypt plugin or a certificate authority to issue certificates
Configure your web server (e.g., Apache, Nginx) to enable SSL for each domain
            

4. Wildcard SSL Certificates

Explore the use of wildcard SSL certificates to simplify SSL setup for a Multisite network with numerous subdomains.

Example of wildcard SSL certificates:

Obtain a wildcard SSL certificate for your primary domain (*.yourdomain.com)
Configure the wildcard certificate to cover all subdomains automatically
Ensure your web server supports wildcard SSL
            

5. SSL Enforcement and Mixed Content

Learn how to enforce SSL across your Multisite network and address mixed content issues that may arise.

Example of SSL enforcement and mixed content:

Use plugins or .htaccess rules to enforce SSL for all network sites
Address mixed content issues by updating links and resources to use HTTPS
Regularly scan for and fix mixed content problems