Schema and Structured Data · SERP Features

What Is a Knowledge Panel in Google?

Google shows many result features beyond plain links. Here is what a knowledge panel is, plus featured snippets, People Also Ask, review snippets, sitelinks and image carousels, and how schema relates to each.

Updated: July 2026
Written by: Andrew Odgers, Managing Director
Reading time: 9 minutes
The short answer

A knowledge panel is an information box in Google results summarising key facts about a person, business or thing, which Google builds and controls. A featured snippet is a highlighted answer at the top; People Also Ask shows related questions. A review snippet shows star ratings from genuine reviews, never fabricated. Sitelinks and image carousels are generated automatically by Google. Schema can support eligibility for some features but never guarantees them, since Google decides what to show.

Beyond plain links

Knowledge panels, featured snippets and People Also Ask

A knowledge panel is an information box that appears in Google results, usually to the side, summarising key facts about a person, business, place or thing, and Google builds it from sources it trusts. Because Google assembles and controls it, you cannot simply switch a knowledge panel on, though accurate information and schema can support how your entity is understood. A featured snippet is a highlighted answer pulled to the top of results, while a People Also Ask box shows related questions that expand to reveal answers, and both draw on content Google selects. Because Google chooses what to feature, clear, well-structured content can help, but neither is guaranteed, and both connect to how well your schema and content describe your pages.

SF 01

Google-built

Assembled, not switched on.

SF 02

Genuine data

Real reviews only.

SF 03

Never forced

Eligibility, not display.

Review snippets, sitelinks, carousels and schema

Review snippets, sitelinks, image carousels, and how schema fits

A review snippet shows star ratings or review detail in a result, drawn from genuine review schema or trusted sources, and it must reflect real reviews, never fabricated ones. Because Google decides when to show it and requires authentic data, honest review markup supports eligibility rather than guaranteeing display, as we cover on the review schema guide. Sitelinks are extra links to sections of a site shown beneath a main result, while an image carousel is a scrollable row of images in results, and Google generates both automatically. Because Google controls them based on relevance and site structure, good organisation can help, though neither can be forced. Schema helps search engines understand your content and entity, which can support eligibility for some features, but it never guarantees any of them, as Google decides what to show. It is one contributing signal; because Google controls display, schema is best seen as helping understanding rather than promising SERP features, which is exactly how we frame star ratings.

SEO done properly, from £350 a month

Understood by Google,
honestly.

We give search engines clear, accurate information about your business and content, supporting eligibility for result features without ever faking data. Honest structured data, no false promises about what Google shows.

Everything included in your plan:

Google Maps optimisation Full website management Local SEO campaign AI optimisation (GEO) Facebook, Instagram and LinkedIn Quarterly audits Monthly reporting
£350 per month

One clear retainer. No setup fee.

Frequently asked

Google SERP features

What is a knowledge panel in Google?
A knowledge panel is an information box that appears in Google results, usually to the side, summarising key facts about a person, business, place or thing. Google builds it from sources it trusts. Because Google assembles and controls it, you cannot simply switch a knowledge panel on, though accurate information and schema can support how your entity is understood.
What are featured snippets and People Also Ask boxes?
A featured snippet is a highlighted answer pulled to the top of results, while a People Also Ask box shows related questions that expand to reveal answers. Both draw on content Google selects. Because Google chooses what to feature, clear, well-structured content can help, but neither is guaranteed.
What is a review snippet in Google?
A review snippet shows star ratings or review detail in a result, drawn from genuine review schema or trusted sources. It must reflect real reviews, never fabricated ones. Because Google decides when to show it and requires authentic data, honest review markup supports eligibility rather than guaranteeing display.
What are Google sitelinks and image carousels?
Sitelinks are extra links to sections of a site shown beneath a main result, while an image carousel is a scrollable row of images in results. Google generates both automatically. Because Google controls them based on relevance and site structure, good organisation can help, though neither can be forced.
How does schema relate to these SERP features?
Schema helps search engines understand your content and entity, which can support eligibility for some features, but it never guarantees any of them, as Google decides what to show. It is one contributing signal. Because Google controls display, schema is best seen as helping understanding rather than promising SERP features.