Key ideas
- Install a valid certificate and update the base site URL.
- Update internal links, sitemaps, robots files, and analytics properties.
- Use redirects and mixed-content checks to protect rankings and user trust.
Context
A checklist-style guide for moving a site from HTTP to HTTPS while avoiding common SEO and mixed-content issues. The article belongs to The Modern Web's practical collection for developers, designers, and site owners who want clear, usable guidance.