On-Page SEO Checklist: 15 Things Every Page Needs

On-page SEO is everything you can control on a single page to help it rank — the content, structure, tags and links. It’s the part of SEO most in your hands, and getting it right on your key pages is often the difference between ranking and staying invisible. Here’s a practical 15-point checklist.

The on-page SEO checklist

1. Target keyword — choose one main keyword (plus close variations) for the page, matched to what the searcher wants.
2. Title tag — unique, compelling, includes the keyword, and under ~60 characters so it isn’t cut off.
3. Meta description — a clear, benefit-led summary (~155 characters) that earns the click.
4. One H1 — a single, clear H1 heading that includes your keyword.
5. Logical headings — H2s and H3s that structure the page and use related terms.
6. Helpful content — genuinely answers the searcher’s question, better than competitors.
7. Keyword placement — naturally in the first paragraph, headings and throughout (never stuffed).
8. URL — short, readable, and includes the keyword (e.g. /seo-services rather than /page?id=12).
9. Internal links — link to and from other relevant pages to spread authority and help navigation.
10. External links — link to trustworthy sources where it genuinely helps the reader.
11. Image optimisation — compressed images with descriptive alt text.
12. Mobile-friendly — the page works perfectly on phones.
13. Page speed — loads fast (a ranking and conversion factor).
14. Schema markup — structured data (FAQ, product, etc.) where relevant, for rich results.
15. Clear call to action — tells the visitor what to do next.

Why on-page SEO matters so much

On-page SEO tells Google exactly what a page is about and how relevant it is to a search — while also making the page genuinely better for visitors. It’s the foundation the rest of SEO builds on: without it, even great content and links struggle to rank.

On-page SEO is the part of ranking you fully control. Nail it on your key pages before worrying about anything else.

How to use this checklist

Start with your most important pages — your key service and money pages — and work through the list for each. You don’t need every item perfect on day one; fixing the big ones (target keyword, title, H1, content quality, speed, internal links) delivers most of the benefit. Then repeat across the rest of your site.

The bottom line

On-page SEO is your most controllable ranking lever. Work through this 15-point checklist on your key pages — target keyword, title, headings, helpful content, internal links, images and speed — and you give each page the best possible chance to rank. It’s the foundation everything else in SEO builds on.