Apart from heavy machinery on the server side which drives your application. Besides all those programming languages, frameworks, and libraries, that are responsible for the performance of your product. Also, all this software stuff, there is also a Structured Data markup that is vital for search engines and the way your page displays in SERPs
Structured Data Markup is apparently the last thing you’ll pay attention to when starting the development of a web app or a website. It is hidden from your eyes but serves as a road marking for search crawlers that Google, Yahoo, and Bing used to find and rate new content across the web.
Good markup can effectively enhance your website position in Google and Bing searches. By using Structured Data markup you can highlight specific information for search engines, just like you use headlines and make text bold, in order to focus the reader’s attention.
An example of cooking recipe structured data markup in JSON-LD format.
Well, the question is now, how to use to validate the quality of something you can’t see? Hopefully, there are tools that allow you to see the website through the eyes of the search robot.
Top 20 Structured Data Markup Testing Tools
Google Structured Data Testing Tool — This is by far the most important tool across the web to run schema testing and modify Structured Data. Primarily because it’s made by Google for Google search queries. You can work with it either way, by uploading the code or by pasting a URL of the targeted webpage.
Bing Markup Validator — The third markup testing tool made by Bing, It works with all popular formats like HTML Microdata, Microformats, RDFa, Schema.org.
JSON-LD Playground — If you want your resource to become fluent in communication with Google’s crawlers, this is the resource service you definitely should use. It contains examples and comprehensive documentation (dictionary) to JSON-LD. Plus, you can paste some of your JSON code in the field and see how it would be translated to JSON-LD. The playground uses the jsonld.js JSON-LD processor which fully conforms to the JSON-LD Syntax and API specifications.
RDFa Play — It is similar to JSON-LD Playground. And if you don’t want to play around with the new format and just want to upgrade your existing HTML markup – RDFa is a good start. The service processes your code with ease, and what’s important it provides users with a handy markup visualization, which is very useful for starters.
An example of product’s structured data markup in RDFa format.
Facebook Debugger — You can use the Sharing Debugger to see the information that is used when your website content is shared on Facebook, Messenger and other places. You should definitely check your website if you’re going to rely heavily on this social media platform for promotion.
Google Email Markup Tester — Simply check out your email structure and test schema by using the standard schema.org markup.
RDF Translator — Perhaps the most useful tool for a quick translation between different Structured Data markup formats. It provides translations between RDF/XML to RDFa or Microdata. You can even paste the targeted web page URL instead of plain code. On top of that, you can connect it to the REST API and ease the life of your development team.
Structured Data Linter — If you need a quick, unbiased look at your markup the Linter is here to help. The Linter works with the microdata, JSON-LD, and RDFa formats. Although it doesn’t currently support microformats. Past a URL into Linter to quickly verify the structured data present in their HTML pages.
Microdata Tool — This tool comes in handy when you need to constantly validate page microdata, even when it’s running without an internet connection on your private server/computer/emulated environment. You can include this little jQuery drop-in script on your page and have a handy browser/validator.
Mida —  Say you need to take someone else microdata, Mida is here to extract it for you. This is a microdata extractor/parser library for Ruby. Sorry, just Ruby.
Google Structured Data Markup Helper — This tool will help you add schema markup to a sample web page.
Microdata Generator — A super-simple and super-complete Schema.org Structured Data generator. Just find the industry your website refers to and fill in all the field required. You’ll get a complete markup to paste on your page. In addition, is it supported by such search engines as Google, Bing, and Yahoo!
Web Code Tools — The comprehensive web code generator that works with all markup formats: HTML, CSS, Microdata, Twitter Cards, Open Graph, Meta tags, JSON-LD, etc.
Microdata Generator — Easy to use Microdata Generator for adding Schema.org tags to your site.
JSON LD Site Name Generator — If all that you need is just structural snippets then this JSON-LD generator will generate them for your webpage.
JSON-LD Schema Generator For SEO — With this tool you can quickly generate the correct JSON-LD for any page on your site.
RDFa-Lab Bookmarklets — A handy tool for a quick check of RDFa markup. Just save this website in bookmarks and activate it on the targeted page.
Schema.org Visualizer — A visualizer that works similar to the RDFa Play visualization. The only drawback is that you’ll need to paste a JSON-Ld code here instead of URL.
Structured Data Testing Tool — This Google Chrome extension uses the Google Structured Data Testing Tool to validate your structured data markup and rich snippets. The Structured Data Testing Tool checks all metadata formats supported by the Google Structured Data Testing Tool including microdata, Schema, RDFa, and JSON-LD.
If you need more information on Structured Data and its use by search engines, consider reading this comprehensive introduction to the topic prepared by Google. Or you can contact us and develop a web project with a perfect Structured Data markup out of the box.
