Schema markup, also known as structured data markup, is a code (semantic vocabulary) that is added to a website to help search engines provide more informative results for users. This code is embedded in a websites HTML and provides search engines with descriptive information about a pages content.
Purpose:
The primary purpose of schema markup is to enhance the richness of the snippets displayed in search results. It aims to provide users with precise and relevant information directly on the search engine results pages (SERPs), potentially increasing the click-through rate for a website.
There are various types of schema markups for different kinds of content, such as articles, local businesses, events, products, recipes, reviews, and more. Each type of markup provides different information that is relevant to its kind of content.
Schema markup is generally implemented using JSON-LD, Microdata, or RDFa formats. Of these, JSON-LD is the recommended format by Google and is placed in the section of the web page’s HTML.
Benefits:
Incorporating schema markup can lead to enhanced search results through features like rich snippets, rich cards, and knowledge graph entries. These enhanced results may include star ratings, author information, product prices, and other relevant data, making the listings more appealing to users.
While schema markup itself is not a ranking factor, it can indirectly impact search rankings by making a site’s pages more indexable and providing relevant metadata that can lead to higher engagement rates from search results.
For those adept in technical SEO, there are more advanced schema types and applications, like using @id to unify different pieces of schema about a single entity or leveraging action schemas to enable a direct function from the SERP, such as booking an appointment or playing a video.
Implementing schema markup correctly is vital in ensuring it provides the intended benefits. Errors or misuse can potentially harm a site’s SEO. Frequently, webmasters use online tools, such as Google’s Structured Data Testing Tool and Schema.org, to help create and validate schema markup.
Best practices:
- Ensure that the scheme markup accurately represents the content of the page.
- Use the most specific item type to describe the content or service provided on the page.
- Regularly check for updates on schema.org and maintain schema markup in line with the current best practices.
- Validate the markup using Google’s Rich Results Test to ensure no errors are present.