Unused images fill your hosting and slow down every backup. How to tell unused from unattached, check where an image is used, and remove files with a way back.
Find broken links and missing images in content, menus and footers, decide between fixing, redirecting and removing, and keep them from coming back.
Where alt text lives in WordPress, how to write it for people and search engines, which images need none, and how to find every image that is missing it.
The three ways to build a multilingual WordPress site, the multilingual SEO checklist (URLs, slugs, hreflang, sitemaps) and a step-by-step plan for translating a site.