On-Page SEO Checklist: 30 Things to Optimize

A repeatable checklist makes on-page SEO easier to manage. Use the following 30 checks before publishing important pages and when refreshing existing content.

Search Intent and Content

1. Identify the primary search intent.

2. Confirm the page type matches that intent.

3. Answer the main question early.

4. Cover important subtopics.

5. Remove unnecessary filler.

6. Add useful examples, evidence, or original explanation.

Titles and Metadata

7. Write a unique title.

8. Make the topic clear in the title.

9. Avoid keyword repetition.

10. Write a useful meta description.

11. Keep metadata accurate.

12. Check for duplicate titles and descriptions.

Use Meta Tags Extractor to inspect metadata.

Headings and Structure

13. Use a clear main heading.

14. Organize major sections with H2 headings.

15. Use lower-level headings when they genuinely clarify subsections.

16. Make headings descriptive.

17. Break long text into readable sections.

18. Use lists or tables when they improve understanding.

Keywords and Content

19. Use the primary topic naturally.

20. Include relevant related terminology.

21. Avoid keyword stuffing.

22. Answer important questions.

23. Review unusual repetition with the Keyword Density Checker.

24. Optimize for search intent rather than a density percentage.

Links, URLs, and Images

25. Add relevant internal links.

26. Use descriptive anchor text.

27. Keep the URL readable.

28. Optimize image size and format.

29. Add useful alt text when appropriate.

30. Check the page on mobile with the Mobile Support Test.

How to Prioritize

Do not treat every item as equally important. Start with intent and content usefulness, then titles, headings, links, images, and usability.

For the reasoning behind this checklist, read On-Page SEO: The Complete Guide.

Conclusion

Use the checklist for both new and existing pages. Consistency matters more than trying to optimize every element perfectly.