Technical SEO

Soft 404

Also known as: soft not-found error

A page that looks like a missing resource while the server returns a success status, for example.

A practical example

A 'product does not exist' message is returned with status 200.

What should I know?

This can make it harder to assess whether the URL has valuable content.

Technical SEO in practice

Check crawler access, server responses, and content processing separately. Then assess indexing and search appearance. These stages are connected but distinct and need different diagnostic methods.

Related Semly features

See where this concept applies when working with Semly.

Related terms

Documentation and further reading

Definition prepared by Semly. Standards and behavior are described by their creators:

Find out if AI ChatGPTGeminiClaudeGoogle AI OverviewsGoogle AI Mode can see you

Enter your website address to get your AI visibility report.