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On-page SEO: guide and checklist

Everything you control on the page itself, with a checklist you can apply to any page today.

Written by , Founder & Head of SEO/GEO · Published 2 Apr 2026 · Updated 15 Oct 2026 · 3 min read

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What is on-page SEO?

On-page SEO is optimizing the elements of a page you control directly, title tag, meta description, headings, content, internal links, images, URL and structured data, so search engines and AI tools understand the page and rank or cite it for the right queries.

What are the most important on-page SEO elements?

Title tag, H1, first paragraph, headings, body content quality, internal links and schema. The title and H1 tell engines the topic; content and links prove depth.

What do the numbers say about SEO and AI search?

Research presented at KDD 2024 (Aggarwal et al., Princeton University and IIT Delhi) found that adding citations, quotations and statistics can boost a source's visibility in generative engine responses by up to 40%, while classic keyword stuffing performed worse than doing nothing. Google's Core Web Vitals define a good experience as Largest Contentful Paint within 2.5 seconds, Interaction to Next Paint of 200 milliseconds or less and Cumulative Layout Shift of 0.1 or less, measured at the 75th percentile of page loads (web.dev). Toffyjar SEO retainers cost $499 a month for Starter and $999 a month for Growth, with Enterprise priced on scope, and every plan includes GEO for AI search. Put simply, rankings now depend on fast pages and answers that cite real sources, and the same work also earns citations in AI Overviews, ChatGPT and Perplexity.

What is the on-page SEO checklist?

Apply this on-page SEO checklist to every important page.

Element Check
Title 50 to 60 characters, primary keyword near the start
Meta description About 140 to 160 characters, clear benefit
H1 One per page, matches intent
Headings Questions buyers ask
First answer Direct answer in 2 to 3 sentences
Internal links To parent, children and related pages
Images Compressed, descriptive alt text
Schema FAQPage, Service, Article as relevant

How should you write headings for on-page SEO?

Use headings that match real questions and subtopics, in a logical order. Question headings help featured snippets and AI answers lift your content. Keep one H1 and nest H2s and H3s logically.

How many internal links should a page have?

Enough to connect it to its parent topic, its child pages and closely related guides. Use descriptive anchor text. Orphan pages with no internal links are hard to find and rank.

Does on-page SEO help AI search?

Yes. Clear headings, short answers, tables and schema make passages easier for AI systems to extract and cite. See what AEO is. The same structure that wins snippets tends to win AI citations.

Can you get help with on-page SEO?

Yes. On-page optimization is part of every SEO services retainer, and our developers can implement changes directly in your CMS. We start with your highest-value pages and work outward.

What are the key takeaways on on-page seo?

In short: Title tag, H1, first paragraph, headings, body content quality, internal links and schema. Apply this on-page SEO checklist to every important page. Use headings that match real questions and subtopics, in a logical order. Enough to connect it to its parent topic, its child pages and closely related guides. Yes. Yes.

WORK WITH TOFFYJAR

Want this done for you?

We build WordPress and modern websites and make them rank in Google and get cited in AI answers. Fixed quotes, senior review, you own everything. We measured these results on 16 October 2026 using OpenSEO, which draws on DataForSEO ranking and backlink data. For example, in one case study an enterprise digital engineering company whose site Toffyjar built has 65 non-brand page-one rankings, 37 at #1, with 2,717 referring domains. In another, an AI insurance process automation platform has 13 non-brand top-10 rankings including #1 for underwriting software, with 2,578 referring domains. These are current figures, not before-and-after claims, and client names stay private under NDA. Every site was planned from a requirement sheet, built on staging, reviewed by senior people and handed over with the client owning the code, content and logins. Projects are priced at about $199 per page, and SEO and GEO retainers start at $499 a month. Ask for a reference on a discovery call and we will connect you with a client where they agree.

CASE STUDY · ENTERPRISE DIGITAL ENGINEERING COMPANY
65 non-brand page-one rankings, 37 at #1 →

Frequently asked questions

Is on-page SEO enough to rank?

Not alone for competitive terms; you also need technical health and authority.

How long is a good title tag?

About 50 to 60 characters.

Do meta descriptions affect rankings?

Not directly, but they affect clicks.

Should every page have FAQ schema?

Only pages with genuine FAQs.

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*Save up to 70%: based on a $1,733/mo dedicated developer vs a $5,900/mo published US agency development plan (Oct 2026).