Tech SEO can be automated, sure - but only if you strip every website down to a template. Bake the same structure into everything, and suddenly the automation works.
But here's the catch: most businesses don't start from a clean slate. They've got legacy builds, quirky CMS choices, content that's been Frankensteined together over years. If your developer is sharp, you won't need someone manually cleaning up URLs or fixing every 404 - they'll handle redirects at the build level. Same goes for site speed: if performance is baked into the dev culture, Lighthouse scores take care of themselves. And if your content team already produces solid, well‑researched material, indexing follows naturally.
In an ideal world, tech SEO is just getting a site to a baseline where it can rank. Automation handles the repetitive checks - crawling, monitoring, flagging errors - once that baseline is locked. But every site has its own quirks, its own stage of SEO maturity, its own technical debt. Automating across that diversity is nearly impossible unless you burn everything down and rebuild from scratch under a single workflow. Some teams do exactly that, but a full rebuild isn't always in the budget - or the timeline.
So yes, automation is possible. But it's a lot more realistic when you treat it as a tool for maintaining a standard, not as a magic wand that fixes unique problems. Real insight still comes from understanding why a site is different.