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On-Page SEO Checklist: 15 Things to Check on Every Page

Use this on-page SEO checklist to optimise titles, meta descriptions, headings, content, images, internal links and structured data on every important page.

By Suresh Kumar M

Founder & Tech Lead, Adkode

Nov 11, 20263 min read

On-page SEO is everything you control on the page itself: the words, the structure, the tags and the links. It is the fastest SEO lever most businesses have, because you can improve it today. Use this checklist for every service page, product page and article you want to rank.

1Title Tag and Meta Description

The title is one of the strongest on-page signals and your headline in search results.

  • Unique title with the main keyword near the start
  • Title under roughly 60 characters
  • Meta description of 140–160 characters that sells the click
  • Brand name at the end of the title

2Headings and Structure

Use one H1 that clearly states the topic, then H2s for main sections and H3s for sub-points. Headings help readers scan and help search engines understand the page’s structure.

3Content That Matches Intent

Answer the searcher’s main question in the first few sentences, then cover related questions in depth. Include specifics: prices or price factors, process, locations, examples and proof. Thin, generic content rarely ranks.

5Images and Media

  • Descriptive file names
  • Alt text that describes the image
  • Compressed, correctly sized images in WebP or AVIF
  • Width and height set to prevent layout shift

6Technical On-Page Elements

  • Clean, readable URL
  • Canonical tag pointing to the preferred URL
  • Structured data (FAQ, Product, LocalBusiness, Article)
  • Mobile-friendly layout and fast loading
  • Indexable (no accidental noindex)

Frequently Asked Questions

What is the most important on-page SEO factor?

Relevant, helpful content that matches search intent, supported by a clear title tag and headings.

Do meta descriptions affect rankings?

Not directly, but a compelling description improves click-through rate, which brings more visitors from the same ranking.

How long should a page be for SEO?

As long as it needs to fully answer the query. Many competitive service pages and guides are 800 to 2,000 words.

Should I use keywords in my URL?

Yes, a short, descriptive URL containing the main keyword is helpful and user-friendly.

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