Free WordPress structured data audit

WordPress Schema Markup Checker

Test any WordPress post or page for JSON-LD, validate the structured data coming from your theme and SEO plugins against Schema.org, and find the duplicate markup, missing fields, and errors that quietly keep your content out of Google rich results and AI answers.

Results in 30 seconds
Reads theme + plugin JSON-LD
Schema.org validation
Rich-result eligibility

35% of Google results show a rich snippet driven by structured data

Plugins WordPress core adds no schema; it comes from plugins and themes

JSON-LD the format Yoast, Rank Math, and AIOSEO output for structured data

100% Free no sign-up, no login, no credit card needed to run a check

What gets checked

Every WordPress schema type that earns rich results

The audit reads each block of JSON-LD on your WordPress page, whether it comes from your theme, an SEO plugin like Yoast or Rank Math, a dedicated schema plugin, or custom code, maps it to its Schema.org type, and flags the required and recommended properties Google looks for.

Article & BlogPosting

The backbone of most WordPress sites. We check the headline, author, image, and publish date qualify your posts for article enhancements in search and AI.
FAQPage & HowTo

The Yoast and Rank Math FAQ blocks output this for you. We validate the question and answer pairs and flag the empty mainEntity that breaks the block.
Product (WooCommerce)

For WooCommerce stores: name, image, price, and availability that unlock product rich results. We watch for the duplicate Product schema WooCommerce and SEO plugins create.
BreadcrumbList

Most SEO plugins output a breadcrumb trail. We confirm it is valid, and flag the common case where your theme and plugin both add it, creating a conflict.
Organization & Person

The entity graph your SEO plugin builds: site name, logo, and author profiles that power the knowledge panel and strengthen brand recognition across search and AI.
Review & Rating

Star ratings and aggregate scores that make your WordPress listings stand out. We flag the self-serving reviews Google won't show stars for.

Explore 30+ Schema Types

Step by step

How the WordPress schema audit works

Three steps, no learning curve. Run the check, read the report, then fix what matters most for rich-result eligibility.

Paste your WordPress URL

Drop in any published WordPress post or page. The WordPress Schema Validator fetches the live URL and reads every block of JSON-LD, no matter which theme or plugin produced it, exactly as a search crawler does.
Read the results

See each detected type with a clear status: valid, missing a recommended property, duplicated, or carrying an error. Every flag points to the exact Schema.org rule behind it, so nothing is a guess.
Fix and re-check

Adjust your SEO plugin's schema settings, disable a conflicting source, or add custom JSON-LD, then update the page. Or let JSON Schema App generate and maintain clean, conflict-free JSON-LD across your site, and re-run the audit.

Run a Free Schema Audit

Decode the report

Common WordPress schema errors and what they actually mean

With a theme and several plugins all able to output schema, a few issues show up again and again on WordPress. Here is what each one means, how serious it is, and the fix.

Duplicate schema from two plugins
CRITICAL

Two SEO plugins, or an SEO plugin plus your theme, output the same type twice. This is the most common WordPress schema problem. Run only one schema source per type.
Theme and plugin conflict
Warning

Your theme hardcodes schema that clashes with your plugin's output. Theme schema is usually thinner, so disable it in the theme settings and let the plugin lead.
WooCommerce + SEO plugin Product clash
Error

WooCommerce and your SEO plugin both emit Product schema, so the page declares it twice. Use the official bridge add-on, or disable one source, to merge into one block.
Missing required property
Error

A field Google requires is absent, so the whole block is ineligible. For Article this is often a missing image or author. Map the field in your plugin and re-check.
Errors after a theme or plugin update
Warning

An update changed how a template outputs schema, so Search Console suddenly shows new errors. Re-validate your key page templates after any major update.
Syntax error in custom JSON-LD
Error

A missing comma or bracket in a JSON-LD block you added by hand or via a snippets plugin breaks the whole block. Check the structure and that properties sit under the right parent.

Audit Your button Data

Troubleshooting

WordPress schema is valid, but rich results still aren't showing?

Valid markup makes a page eligible for rich results. It does not force them to appear. On WordPress, it is usually one of these.

A caching plugin is serving an old version

WordPress caching and CDN layers can keep serving a cached page without your new schema. Clear the cache, then test the live URL so the crawler sees the update.
Two sources are still conflicting

If a theme and a plugin both output the same type, Google may ignore both. Make sure exactly one source produces each schema type before assuming the markup is the issue.
Your star ratings are self-serving

Google no longer shows review stars for reviews a business writes about itself on its own page. Star ratings need to come from genuine, independent reviews.
The markup doesn't match the page

If the schema describes content a visitor cannot see on the post, or a value that has gone stale, Google withholds the rich result. Keep markup and visible content in sync.
It simply needs time

After a fix, Google has to re-crawl and re-process the page. Rich results can take days to reappear, so re-check, then give it time rather than changing things again.

Find Rich Result Issues

The honest take

Schema won't rank you on its own, but it changes how you show up

Structured data is not a direct ranking factor. What it does is make your WordPress content machine-readable, so search engines and AI assistants can understand a page well enough to enhance how it appears. That often means a richer listing, a higher click-through rate, and a better shot at being cited in AI answers.

WordPress is the most flexible platform for schema, but that flexibility is the catch: core adds nothing, and your theme plus several plugins can all output overlapping markup. A single duplicate or missing property can disqualify a block. This WordPress Schema Validator exists to surface those gaps before they cost you.

Eligibility, not guarantees: we flag what blocks rich results, honestly
Validated against current Schema.org and Google documentation
Clear severity, so you fix errors first and recommendations next

article.jsonld

{
  "@context": "https://schema.org",
  "@type": "Article",
  "headline": "How to Speed Up WordPress",
  "image": "/img/cover.jpg",
  "datePublished": "2026-05-01",
  "author": {
    "@type": "Person",
    "name": "Priya Shah"
  },
  "publisher": {
    "@type": "Organization",
    "name": "Speed Journal"
  }
}

Clear the confusion

Schema Markup Validator vs Rich Results Test vs Search Console

These are the three tools WordPress users lean on. They are not interchangeable, which is why markup can pass one and fail another. Here is what each does.

Schema Markup Validator

Checks Schema.org syntax

Confirms the JSON-LD on your page is well-formed and uses valid Schema.org vocabulary. It does not tell you whether Google will actually show a rich result.

Use it: for syntax and duplicates

Rich Results Test

Checks Google eligibility

Tests your published WordPress URL against Google's feature requirements and previews the result. This is why clean markup can still throw errors here.

Use it: after you update a post

Search Console

Checks live issues at scale

Reports structured data issues across your whole WordPress site from real crawls, and flags spikes after theme or plugin updates. Best for monitoring, not first-pass checks.

Use it: ongoing, site-wide

Run a Free Schema Audit

Stop guessing. Audit your WordPress schema now

Run a free check on any WordPress URL, then let JSON Schema App generate and maintain clean, conflict-free JSON-LD across your site automatically.

Run a free audit

Frequently Asked Questions

Does WordPress add schema markup automatically? No. WordPress core does not output schema on its own. It comes from an SEO plugin like Yoast or Rank Math, a dedicated schema plugin, your theme, or custom JSON-LD. This checker reads whatever is live on the page, no matter which source produced it.

Which schema plugin should I use on WordPress? Most sites use one all-in-one SEO plugin, such as Yoast, Rank Math, or AIOSEO, and add a dedicated schema plugin only for advanced types. The key rule: never run two plugins that output the same schema, since that is the leading cause of duplicate markup. This audit tells you if more than one source is firing.

Will WordPress schema improve my Google rankings? Schema is not a direct ranking factor, and we won't claim otherwise. What valid WordPress structured data does is make your content eligible for rich results and easier for AI assistants to interpret. Those richer listings often lift click-through rate, which is the real, measurable win.

How do I fix duplicate schema in WordPress? Find the second source and turn it off. Usually it is a theme outputting schema your plugin already handles, two SEO plugins running at once, or WooCommerce plus an SEO plugin both emitting Product. Disable schema in the theme or the non-primary plugin so each type has one source, then re-run the audit to confirm.

Is the WordPress Schema Markup Checker free? Yes. Running an audit is completely free and needs no account. If you'd like to generate and maintain clean, conflict-free JSON-LD automatically across your WordPress site, that's where the JSON Schema App platform comes in, but the checker itself stays open to everyone.

Why did my star ratings disappear? The most common cause is the self-serving review rule: Google no longer shows stars for reviews a business writes about itself on its own pages. Stars need to come from independent reviews. A stale or mismatched ratingValue can also suppress them.

Does this work for WooCommerce product pages? Yes. The checker reads the Product schema on any WooCommerce URL and flags the common case where WooCommerce and your SEO plugin both output it, creating a duplicate. It also checks that price, availability, and image are present so the product can earn rich results.

Does this work no matter which theme or plugin I use? Yes. The WordPress Schema Validator reads the rendered structured data on any published URL, so it works the same whether your schema comes from Yoast, Rank Math, AIOSEO, Schema Pro, your theme, or hand-written JSON-LD. JSON Schema App can also generate and maintain clean markup across your whole site.

Ship Schema in 2 Minutes - Win Rich Results & Get Recommended by AI

Find and fix the schema gaps keeping you out of Google's rich results and AI answers from ChatGPT and Gemini.

“The agent doesn’t return ten blue links… it pulls from structured business data… to complete the job.”

- Sundar Pichai

JSON Schema App automatically detects, fixes, and manages structured data to help search engines and AI understand your website, improving visibility and rich results.

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WordPress Schema Markup Checker

Every WordPress schema type that earns rich results

Article & BlogPosting

FAQPage & HowTo

Product (WooCommerce)

BreadcrumbList

Organization & Person

Review & Rating

How the WordPress schema audit works

Paste your WordPress URL

Read the results

Fix and re-check

Common WordPress schema errors and what they actually mean

Duplicate schema from two plugins

Theme and plugin conflict

WooCommerce + SEO plugin Product clash

Missing required property

Errors after a theme or plugin update

Syntax error in custom JSON-LD

WordPress schema is valid, but rich results still aren't showing?

A caching plugin is serving an old version

Two sources are still conflicting

Your star ratings are self-serving

The markup doesn't match the page

It simply needs time

Schema won't rank you on its own, but it changes how you show up

Schema Markup Validator vs Rich Results Test vs Search Console

Schema Markup Validator

Rich Results Test

Search Console

Stop guessing. Audit your WordPress schema now

Frequently Asked Questions

Ship Schema in 2 Minutes - Win Rich Results & Get Recommended by AI

“The agent doesn’t return ten blue links… it pulls from structured business data… to complete the job.”

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