Problems I find most often
Pages blocked by a leftover "noindex" from the staging site. Thousands of thin tag and filter pages eating crawl budget. Arabic pages with no hreflang, so Google shows English results to Arabic searchers. Hero images weighing 4 MB. Plugins loading on every page that only one page needs.
None of these show up when you look at the site in your office on fibre. They show up on a mid-range phone on mobile data, which is how most of your customers see it.
A fix list, not a 90-page PDF
You get a prioritised list: what to fix, why it matters, roughly how long it takes and who should do it. I can make the fixes myself on WordPress and most common platforms, or hand the list to your developer and answer their questions.
