What is schema markup?

Schema markup is code added to your website that uses the schema.org vocabulary to label and describe your content in a way search engines can read. The most common format is JSON-LD, which sits in your page's head or body without affecting how visitors see the site.

When you apply schema markup correctly, search engines understand the context of your content. An article becomes clearly marked as an article with author and publish date. A product shows price, availability, and reviews directly in search results. A local business displays address, phone number, and opening hours. These enriched search listings are called rich results or rich snippets.

Why it matters: Rich results increase click-through rates by making your listing stand out in search. Schema markup also helps search engines index your site accurately, which improves rankings for relevant queries. For businesses in Malaysia, proper schema implementation especially benefits local SEO and e-commerce visibility. Many SEO agencies now treat schema markup as a core technical SEO task rather than an optional extra.

Common schema types include Organization, LocalBusiness, Product, Article, FAQ, and Event. Implementing schema requires careful attention to accuracy, as incorrect markup can confuse search engines or trigger manual actions. Technical SEO specialists often audit and optimize schema as part of a wider site health strategy.