A collaborative community that creates, maintains, and promotes schemas for structured data on the internet.

Definition is a project that provides a collection of shared vocabularies webmasters can use to mark up their pages in ways that can be understood by the major search engines: Google, Microsoft, Yandex and Yahoo!. It's a collaborative, community activity with a mission to create, maintain, and promote schemas for structured data on the Internet, on web pages, in email messages, and beyond. vocabulary can be used with many different encodings, including RDFa, Microdata and JSON-LD.

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Usage and Context is primarily used to enhance the visibility of a website to search engines. By using the structured data markup schema from, webmasters can provide search engines with more detailed information about their website content. This data can be used by search engines to enhance the display of search results, making it easier for people to find the right web pages. For example, can be used to mark up products, reviews, events and more, which can then be displayed in rich search results.


  1. What is the difference between and Microdata, RDFa, and JSON-LD?

    • is a set of vocabularies, or html tags, that can be used to mark up web pages. Microdata, RDFa, and JSON-LD are different encoding methods used to add this markup to web pages.
  2. What is and why is it important for SEO?

    • is a collaborative project that provides a collection of schemas, i.e., html tags, that webmasters can use to mark up their pages in ways that can be recognized by major search engines. This is important for SEO as it helps search engines understand the content on the page, and can lead to improved search visibility and click-through rates.
  3. How to implement markup?

    • markup can be implemented by adding the appropriate vocabulary to the HTML of your webpage. This can be done manually or using various SEO tools that automate the process.
  4. What types of content can be marked up with

    • Almost any type of content can be marked up with This includes products, reviews, events, organizations, people, recipes, and many more.
  5. How can improve my website's SEO?

    • By providing search engines with more detailed information about your website's content, can help to enhance the visibility of your website in search results, potentially leading to higher click-through rates.


  1. Enhanced Search Visibility: Using markup can help search engines understand your website content better, potentially improving your visibility in search results.
  2. Improved Click-Through Rates: By enhancing your website's listing in search results with additional information, can lead to higher click-through rates.
  3. Competitive Advantage: Implementing markup can give you an edge over competitors who do not use structured data.
  4. Supports Rich Results: markup is a key component to earning 'rich results' in Google and other search engines.
  5. Improved Local SEO: For businesses with physical locations, using markup can improve local SEO.

Tips and Recommendations

  1. Use a Tool to Generate Markup: Consider using a tool to generate your markup, such as Google's Structured Data Markup Helper.
  2. Test Your Markup: Always use Google's Structured Data Testing Tool to check your markup before implementing it.
  3. Start with Most Important Pages: If implementing markup across your entire site is overwhelming, start with the most important pages first.
  4. Stay Up-to-Date: Keep up with changes and additions to the vocabulary to take advantage of new opportunities for structured data markup.
  5. Consider User Experience: Remember that while can help SEO, ultimately your site should be designed for users, not search engines.

Conclusion provides a valuable opportunity for SaaS companies to improve their visibility in search engines. By implementing markup, websites can provide more detailed information to search engines, enhancing the display of search results and potentially improving click-through rates. While implementing markup takes time and effort, the potential benefits for SEO make it well worth considering for any SaaS company looking to improve its online visibility.