How to check the technology a website is build with?

Checking the technology a website is built with involves inspecting its underlying components, such as the content management system (CMS), web server, programming languages, and frameworks. Here are several methods to uncover the technology stack of a website:

1. Using Online Tools.

Discovering the technology stack of a website becomes effortless with the assistance of online tools. Platforms like BuiltWith and Wappalyzer offer comprehensive reports by analyzing various components, unveiling the intricate web technologies shaping a website.

BuiltWith:

Visit BuiltWith.
Enter the URL of the website in question.
The tool will generate a detailed report outlining the technologies used.

Wappalyzer:

Install the Wappalyzer browser extension for Chrome or Firefox.
Open the website you want to inspect.
Click on the Wappalyzer icon in your browser to view the detected technologies.

2. Check Page Source.

Dive into the digital anatomy of a website by scrutinizing its page source. By right-clicking and exploring the HTML code, you can unveil meta tags, scripts, and comments that serve as clues, unraveling the technological tapestry behind the web interface.

Right-click on the website page and select "View Page Source" or "Inspect" (depending on your browser).

Look for meta tags, comments, or scripts that may indicate the use of specific technologies.

3. Loop for Generator Meta Tag.

Embark on a metadata expedition within a website's HTML source code. The presence of a generator meta tag, such as the one indicating WordPress, serves as a breadcrumb leading to the revelation of the content management system (CMS) in use.

<meta name="generator" content="WordPress">

4. WHOIS Loopup.

Unveil the digital footprint of a website through a WHOIS lookup. By exploring information about domain registration, hosting provider details, and registration history, one can glean insights into the foundational elements supporting the website's structure.

Perform a WHOIS lookup using websites like WHOIS.net.
Look for information about the web hosting provider, which might give clues about the technology stack.

5. Online Platform.

Peer into the collaborative world of online platforms like GitHub, GitLab, or Bitbucket. These repositories often unveil the source code and development choices behind a website, presenting a community-driven perspective on its technological foundation.

Some Tips:

Keep in mind that not all information may be accurately disclosed, and some websites may actively hide their technology stack for security reasons.

Use multiple methods to cross-verify results.

Understand that the information gathered might not be exhaustive or up-to-date, especially if the website employs security measures to conceal its stack.

By employing these methods, you can gain valuable insights into the technology stack of a website, enabling a better understanding of its underlying infrastructure and development choices.