On-page SEO is about the content of a page; technical SEO is about whether search engines can reach it.
Both happen on your own site, but they fix different problems. You need the technical foundation before on-page work pays off.
Scroll sideways to see all columns.
| Aspect | On-page SEO | Technical SEO |
|---|---|---|
| Focus | Content and relevance | Crawling and indexing |
| Examples | Titles, headings, keywords | Speed, sitemaps, robots.txt |
| Answers | Why a page is relevant | Whether a page is reachable |
| Owner | Writers and marketers | Developers and SEOs |
Which comes first
- Fix technical blockers first. Content cannot rank if it is not crawlable.
- Then optimise on-page for the keywords you target.
- Revisit both. Technical breaks silently and content goes stale.
The verdict: Fix the technical foundation first, then optimise on-page. One makes a page reachable; the other makes it relevant. You need both.
Frequently asked questions
Which comes first, on-page or technical SEO?
Fix technical blockers first, since a page that cannot be crawled or indexed will not rank. Then optimise on-page for the keywords you target.
Is technical SEO a one-time job?
No. Technical issues creep back after redesigns, migrations and new plugins, so run a quick check after big changes and a full audit periodically.
Can good on-page SEO overcome technical problems?
No. If crawlers cannot reach or render a page, even perfect on-page work cannot make it rank. The foundation has to be sound first.