--- title: "How to Test Your Website’s Structured Data in Google" description: "How to test Schema.org structured data: the Rich Results Test, the Schema Markup Validator and Search Console reports. Common errors and how to fix them." url: "https://it-deweloper.pl/en/blog/test-structured-data-google" date: "2026-10-17T23:40:00+00:00" language: "en-GB" --- [Skip to main content](#tm-main) - [ Home](https://it-deweloper.pl/en "IT Deweloper web studio home page") - [Contact](https://it-deweloper.pl/en/contact "Contact the IT Deweloper web studio") - [ +48 731 190 041](tel:+48731190041 "Phone") - [ office@it-deweloper.pl](mailto:office@it-deweloper.pl "E-mail") - [ Nowogródzka 4A, Białystok, Poland](https://maps.app.goo.gl/BNjvryytwRyv4omA7 "Address") - [ WhatsApp](https://wa.me/48731190041 "WhatsApp") - [ Telegram](https://t.me/+48731190041 "Telegram") - [Solutions](https://it-deweloper.pl/en/web "IT Deweloper's web development solutions") - [How we workStages of work](https://it-deweloper.pl/en/web/process "Website development stages and timelines") - [SEOSearch engine optimization](https://it-deweloper.pl/en/web/seo "SEO promotion: optimization, links, positions in Google") - [GEOWebsite promotion in AI](https://it-deweloper.pl/en/web/geo "GEO optimization: website promotion in ChatGPT, Gemini and Perplexity answers") - 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But you can’t spot an error in it by eye: the page looks fine while Google quietly ignores the markup. That’s why it’s checked with dedicated tools. Here are three tools that answer different questions, how to read their results and the errors that come up most often. --- ![A search result card with stars in a browser window, a step checklist and a question mark — a guide to testing structured data](https://it-deweloper.pl/images/blog/test-structured-data-google-cover-2x.webp) ## Three tools, three questions - **Google’s Rich Results Test** answers whether a page can get a rich result in search: star ratings, a product price, breadcrumbs. - **The Schema Markup Validator** answers whether the markup is written correctly at all — by all the vocabulary rules, including for types Google doesn’t display specially. - **Search Console reports** answer what Google has found across the whole site and where errors repeat. You usually need all three: the first two for a specific page right now, the third for monitoring the whole site over time. ## Step 1. Rich Results Test 1. Open the [Rich Results Test](https://search.google.com/test/rich-results). 2. Paste the page URL and run the test. If the page isn’t published yet, you can paste its HTML code. 3. Look at the list of detected items. An item without errors is eligible for a rich result. An error means it isn’t. A warning means it is eligible but missing recommended properties. The tool only shows types for which Google has rich results. You won’t see `Service` or `WebPage` markup there. That isn’t an error: Google simply has no special display for them in search results. ## Step 2. Schema Markup Validator 1. Open [validator.schema.org](https://validator.schema.org). 2. Paste the URL or code of the page. 3. On the right you’ll see a tree of every detected entity with its properties, plus a list of errors and warnings. This is the place to check that entities are linked correctly: for example, that a service has a provider and a product has an offer with a price. If a property doesn’t belong to the chosen type, the validator will tell you. ## Step 3. Search Console reports When Google finds supported markup on your site, Search Console shows a report for each type — for example, breadcrumbs or products. They show how many pages have valid markup, how many have errors and which errors repeat. After fixing, you can click Validate fix in the report, and Google will recheck the affected pages. If your site isn’t in Search Console yet, start with [this guide](https://it-deweloper.pl/en/blog/add-website-to-google-search-console). ## Common errors - **The markup doesn’t match what visitors see.** One price in the markup, another on the page; reviews in the markup that aren’t on the page. Google requires marked-up data to be visible on the page. - **Required properties are missing.** For example, a product offer without a price or availability. - **Two sets of markup for the same thing.** The CMS adds its own Organization markup, an SEO plugin adds another, and the page ends up with two different “companies”. Keep one source. - **JSON-LD syntax errors**: a stray comma, unescaped quotes. The validator shows the line with the error. - **Markup for results that no longer exist.** Since 2023, Google shows FAQ rich results mainly for authoritative government and health sites, and has stopped showing HowTo rich results altogether. Such markup does no harm, but it won’t bring stars to your listing. - **Expecting a guaranteed result.** Correct markup makes a page eligible for a rich result but doesn’t guarantee it: Google decides whether to show it. ## In short 1. Rich Results Test — is the page eligible for enhanced display in search? 2. Schema Markup Validator — is the markup valid as a whole? 3. Search Console — where do errors repeat across the site? 4. Marked-up data must match what’s visible on the page. 5. One entity type, one source of markup. If your site has no structured data or it contains errors, we can [add structured data for Google rich results](https://it-deweloper.pl/en/web/google/rich-results): company, services, products and breadcrumbs — tested in all three tools. For online shops, product markup also helps with [Merchant Center disapprovals](https://it-deweloper.pl/en/blog/fix-disapproved-products-merchant-center). 17 October 2026 | [Victor Parhimchik](https://it-deweloper.pl/index.php?option=com_contact&view=contact&id=1&catid=4) | [IT Deweloper Blog](https://it-deweloper.pl/index.php?option=com_content&view=category&id=29) [ ![A database icon in a browser window, a step checklist and a question mark — a guide to first queries on GA4 data in BigQuery](https://it-deweloper.pl/images/blog/ga4-bigquery-first-query-cover.webp) ### How to Write Your First Query on GA4 Data in BigQuery Once Google Analytics 4 is linked to BigQuery, raw events appear in your warehouse every day: every page view, click and enquiry with all its paramet… ](https://it-deweloper.pl/index.php?option=com_content&view=article&id=300:ga4-bigquery-first-query&catid=29&lang=en-GB) [ ![A gateway arch with an arrow in a browser window, a step checklist and a question mark — an explanation of how Google tag gateway works](https://it-deweloper.pl/images/blog/how-google-tag-gateway-works-cover.webp) ### How Google Tag Gateway Works and Whether to Turn It On Google tag gateway is a feature that lets you load Google tags from your own domain instead of Google’s servers. 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