Technical SEO

User-Agent

Also known as: UA

Request information describing the client program, such as a browser or declared bot.

A practical example

A server sees the bot name in a request header.

What should I know?

This header can be spoofed and does not prove identity.

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.

Google Search ConsoleConnect search data to Semly. Analyze queries and page performance when planning next steps.AI Agent LeonWork with Leon on recommendations, action plans, and brand content.

Related terms

CrawlerA program that automatically visits pages and files to find information or collect data.Server logsRequest records containing details such as time, URL, status, and client information.robots.txtA file telling supporting crawlers which paths they may retrieve.

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.