Schema Markup in 2026: The Only 6 Types Most Businesses Actually Need

Schema markup suffers from a completeness problem: there are hundreds of types, plugins offer dozens, and teams either implement nothing or implement everything badly. Broken schema is worse than none; I covered a client whose rich results vanished sitewide from one invalid plugin update in my rankings emergencies post.

Schema also quietly picked up a second job. It used to earn rich results in Google. Now it also tells AI systems, the assistants and the Overview builders, exactly who you are and what you offer in a format they parse without guessing. Both jobs are done by the same six types for most businesses.

The Six That Matter

What to Skip, and the Maintenance Rule

Skip the exotic types your plugin offers unless you demonstrably need them: Event without events, VideoObject without video, HowTo on pages that are not how-tos. Every type you add is a validation surface that can break silently in a plugin update. The maintenance rule that survives contact with reality: validate quarterly in Search Console’s Enhancements reports, and after every plugin or theme update. Fifteen minutes, calendared, owned by a named person.

A Worked Example: The Silent Breakage and the Recovery

The client I mentioned in my rankings emergencies post is worth expanding here, because the sequence is so typical. A plugin update changed how review markup rendered: technically present, semantically invalid. Google stopped showing stars sitewide within days. Rankings barely moved, but click-through fell by nearly a third, and revenue followed. It took weeks to notice precisely because everyone was watching rankings, the metric that had not changed.

The recovery was mechanical once diagnosed: valid markup restored, Search Console validation run, rich results back within two crawl cycles. The durable fix was procedural, the quarterly validation calendar and a named owner. Schema does not fail loudly. It fails like a fridge light: you only notice when you finally open the door and check.

Questions I Get on This Topic

JSON-LD or microdata? JSON-LD, without hesitation. It lives in one script block, survives template edits far better, and is what Google recommends. If a plugin outputs microdata woven through your HTML, that is a fragility worth migrating away from.

Does schema directly improve rankings? Not as a ranking factor in the direct sense. It improves how results display, which moves click-through, and it improves machine comprehension of who you are, which increasingly matters beyond Google. The revenue path is real; it just does not run through the position number.

How do I add schema on WordPress without another plugin? Most SEO plugins you already run handle the six core types adequately. The gap is usually configuration and validation, not tooling. Before adding anything, audit what your current stack already outputs; duplication is the more common disease than absence.