On-Page SEO Checklist for Websites

On-page SEO covers the parts of a page you control directly. A simple checklist helps every page start with good foundations.

The checklist

• Title tag: clear, descriptive and unique.
• Meta description: a helpful summary that explains the page.
• One main heading (H1) and logical subheadings.
• Descriptive URL: short and readable.
• Internal links to related pages.
• Image alt text describing images for accessibility.
• Canonical tag where duplicate versions exist.
• Content that fully satisfies the page's purpose.

Avoid duplicate metadata

Avoid duplicate or misleading titles and descriptions across pages.

About meta descriptions

A meta description can help explain a result, but it is not a guaranteed ranking factor or guaranteed snippet. Google may show different text.

Check rendering

Check mobile rendering and make sure important text is available to crawlers, not hidden in images.

Stay flexible

Use the checklist on every page, while allowing different pages to serve different search intents.

Frequently asked questions

How long should a title tag be?

Keep it short enough to show fully in results, usually around 50–60 characters.

What is image alt text?

A short text description of an image used by screen readers and search engines.