How to find, identify and check web technologies behind websites and apps Technology Сhecker is a browser extension for Chrome which helps identify the technologies used to build a website or an app. It detects CMS, marketing tools, e-commerce solutions and much more.

It’s very easy to use:

  1. Find our web technology checker extension at Chrome Web Store
  2. Click the Add to Chrome button.
  3. Open any website you are interested in.
  4. Click on our extension icon to see all the technologies used on the website.

If you want to later find the emails from this company, you can add it to your Companies List.


If you want to do a reverse search and find the companies that use a certain technology, open your account and choose the Technology Checker tool.

All you need to do is type the technology name into the search field or choose one from the list below the search bar, and hit the Search button.

At this point, you can specify the number of websites you want to receive. Please note the max number of websites we can provide per technology is 20,000. To perform a more specific search, you can use the advanced search.

In the advanced search you can choose the following criteria:

  • Industry
  • Employee number
  • Country
  • Language

After you’ve clicked the Search button, you’ll be offered to export your results into a CSV file or find the people to contact from these companies.

Here’s an example of an exported CSV file with the results.

If you choose the Find people to contact option, you’ll be offered to perform a Bulk Domain Search for all the found websites. You can find more details about this option here.

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