On-page SEO is one of the foundational factors that determines whether Google rates your website highly and ranks it well. For newly launched websites, optimizing on-page SEO from the very beginning helps shorten the time it takes to rank, compared to fixing it later. This article will help you understand the concept and give you a practical checklist to apply right away.

What Is On-Page SEO?
On-page SEO is the set of optimization techniques applied directly to each page of a website — including content, HTML tags, URL structure, images, and internal links — to help search engines correctly understand the page’s topic and rank it appropriately for users’ search queries. On-page SEO differs from off-page SEO (backlinks, social media) because it’s entirely within the website owner’s control.
On-Page SEO Optimization Checklist for New Websites
1. Research and Define Target Keywords
Before writing content, clearly define one focus keyword and 2-3 related secondary keywords for each page, avoiding stuffing unrelated keywords onto the same page.
2. Optimize the Title Tag (SEO Title)
The title should contain the focus keyword near the beginning, with a recommended length of 50-60 characters so it isn’t truncated in search results.
3. Optimize the Meta Description
Briefly summarize the page content in 140-160 characters, include the focus keyword, and add a call to action (CTA) to boost click-through rate.
4. Optimize the Heading Structure (H1-H6)
Each page should have only one H1 tag containing the focus keyword; H2 and H3 tags are used to break the content into sections, helping both readers and Google easily grasp the article’s structure.
5. Optimize the URL
URLs should be short, free of special characters, contain the focus keyword, and accurately reflect the page topic — for example, /blog/seo-website/what-is-on-page-seo/.
6. Place the Keyword Within the First 100 Words
Google favors pages where the focus keyword appears early in the content, helping establish the page’s topic right from the start.
7. Optimize Keyword Density Appropriately
Ideal keyword density is typically around 0.5-1.5%, appearing naturally throughout the content — avoid keyword stuffing, which can backfire.
8. Optimize Images (Alt Text, File Names, Compression)

Images need alt text that accurately describes the content, meaningful file names, and compression so they don’t slow down page load speed.
9. Build Internal Links
Each article should link to 2-3 other relevant pages on the website using natural anchor text, helping Google understand the relationships between pieces of content.
10. Add Authoritative External Links
Linking to 1-2 authoritative reference sources (such as Google’s official documentation) helps increase the credibility of your content.
11. Optimize Content Length
Content should be thorough enough to fully address search intent — typically a minimum of 600-800 words for landing pages, and 1,000+ words for in-depth blog posts.
12. Check Readability
Short paragraphs, simple sentences, and bullet lists where appropriate — these are the criteria that tools like Yoast SEO and RankMath SEO typically evaluate as a “readability score.”
Tools to Help Check On-Page SEO
Plugins like Yoast SEO and RankMath SEO for WordPress let you quickly check all of the above criteria while drafting an article, showing an overall score and specific suggestions for any items that don’t yet meet the standard.
For a deeper dive, check out our articles on SEO-friendly website design, SEO-friendly internal linking, and how to research SEO keywords.
Conclusion
Optimizing on-page SEO right from the website design stage saves businesses time and builds a solid foundation for more advanced SEO strategies later. If you need a website with proper on-page optimization from day one, check out our SEO-friendly website design service for detailed consultation.
You can also check out our SEO-friendly website design guide and our website design pricing, as well as reference material from RankMath for a deeper understanding before you get started.

