Skip to content

Built With

Web technology profiler that identifies the frameworks, analytics and infrastructure a website is built with.

Not yet verified
Demo online
MIT

Open the official app on builtwith.com

This tool is hosted by its maintainers. Click below to open builtwith.com in a new tab — it's their official demo.

Browse developer tools →

What's next with Built With?

Choose how you want to get started.

Use it free

Open the official tool or demo — no account needed.

Free

Self-host it

Run the open-source version on your own infrastructure.

Open

What is Built With?

BuiltWith is a proprietary web tool that identifies technologies used by websites. Its primary purpose is to provide visibility into the technical stack of websites, helping users understand what tools and services are powering specific domains. The tool is utilized by sales teams, AI & engineering teams, investors, and analysts who need to track technology adoption trends and competitive landscapes. BuiltWith addresses the problem of identifying which technologies are being used by websites, offering insights into the digital infrastructure of online entities. This is particularly useful for market research, competitive analysis, and technology validation. By providing detailed information on the technologies powering websites, BuiltWith enables users to make informed decisions about their own technology strategies and business approaches.

How it works

BuiltWith is primarily built using web technologies such as HTML, CSS, and JavaScript. It relies on a database of known technologies and their associated markers, which are continuously updated. The tool processes data from websites by analyzing their source code and identifying specific patterns and files that indicate the use of certain technologies. It supports major web browsers and operates through a web interface. Data privacy is managed by ensuring that the tool only collects publicly available information from websites, without accessing sensitive or private data.

How to use it

  1. 1Open the Built With page
  2. 2Use the tool directly in your browser
  3. 3Results appear instantly — no waiting, no downloads

What it can do

  • technology profiler

Use cases

Assumptions and limitations

Assumptions

  • source: https://builtwith.com/
  • license: Proprietary — free to use
  • privacy: Opens an external demo

Limitations

  • Dual-use tool — use only with explicit authorization on systems you own or have permission to test.

Understanding the result

Web technology profiler that identifies the frameworks, analytics and infrastructure a website is built with.

Tool details

  • Clearly flagged when a network request is needed.
  • No account, no sign-up, and no tracking of your content.
  • Powered by (MIT).
Built with
(https://builtwith.com/)
License
MIT
Runs locally
No — requires a network request
Verification
Not yet verified
Input
Query
Output
Text
Open-source source & license

Built with https://builtwith.com/. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.

Built with
License
MIT
View source on GitHub

Open-source project

OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.

References

Frequently asked

How does BuiltWith identify the technologies used by websites?

BuiltWith identifies technologies by analyzing the HTML, JavaScript, and other code elements of websites. It parses these elements to detect specific libraries, frameworks, and services that are part of a website's technical stack. The tool uses a database of known technologies and their associated markers to determine which technologies are being used. This process involves checking for the presence of specific files, configurations, and code patterns that indicate the use of certain technologies.

What kind of data does BuiltWith collect from websites?

BuiltWith collects data on various aspects of a website's technology stack, including analytics tools like Google Analytics, advertising platforms such as AdSense, content management systems like WordPress, hosting services, APIs, and other technical components. The tool also tracks the adoption trends of these technologies across the web, providing insights into their popularity and usage patterns.

How can I use BuiltWith to analyze a website's technology stack?

To analyze a website's technology stack, visit the BuiltWith website and enter the URL of the website you want to examine. The tool will then parse the website's code and identify the technologies it uses. The results will be displayed in a structured format, showing which technologies are being used and their associated details. You can then use this information for competitive analysis, market research, or technology validation.

How does BuiltWith compare to other website analysis tools?

BuiltWith differs from other website analysis tools by providing a comprehensive database of 126,097+ internet technologies, including analytics, advertising, hosting, CMS, and more. It also offers detailed insights into technology adoption trends and competitive landscapes. Alternatives like Wappalyzer and BuiltWith itself have similar functionalities but may vary in the depth and breadth of their technology databases and the accuracy of their analysis.

What should I do if BuiltWith cannot detect certain technologies on a website?

If BuiltWith cannot detect certain technologies, consider that the website may be using obfuscation techniques, custom implementations, or internal systems that are not well-documented. To address this, cross-verify the results with other tools or manual checks, and consider reaching out to the website's administrators for more detailed information.

Spotted something wrong with Built With, or want to maintain it? See how to help.