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WhatCMS

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description WhatCMS Overview

WhatCMS is a web-based tool that analyzes websites to identify the content management system or technology platform behind them. It examines publicly available signals such as HTTP headers, HTML markup, JavaScript references, cookies, and file paths to detect hundreds of CMS platforms including WordPress, Drupal, Joomla, Shopify, and others. The service offers both a free lookup interface and a paid API for bulk or automated detection. It is used by developers, marketers, and security professionals for competitive research, technology auditing, and reconnaissance.

help WhatCMS FAQ

What does the WhatCMS tool do?

WhatCMS is a free online web tool that identifies which Content Management System (CMS) a specific website is using. It analyzes a site's technical signatures to tell you if a site is powered by WordPress, Shopify, Drupal, or hundreds of other platforms.

How does WhatCMS determine the technology behind a website?

The tool analyzes various technical characteristics of the target website, such as HTTP headers, HTML source code, and specific file paths. By comparing these data points against its database of CMS signatures, it can accurately detect the underlying software.

Does WhatCMS offer an API for developers?

Yes, WhatCMS provides a REST API that allows developers to programmatically detect CMS software within their own applications. This service requires an API key and operates on a tiered subscription pricing model based on the number of monthly lookups.

Is WhatCMS always 100% accurate in its CMS detection?

While highly accurate, it is not foolproof, as some websites employ security measures or custom frameworks that obscure their underlying technology. Heavily modified sites or those using proprietary, custom-built systems may sometimes return an "unknown" result.

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