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How to discover which technology a website is built upon?

How can I know wether a website is based on Wordpress / Wix / React / Next.js / Nuxt.js / PHP etc?

I know answer for two, maybe you can help with other popular technologies.

  1. Wordpress: I mostly check wether the https://theirdomain/wp-admin.php drop onto the login screen. It helps many times. And usually their html has prefixes based on their page builder. I.e. if they use Elementor is used, it has many elementor- prefix in the html tag names.

  2. Next.js: Under body there is always a mandatory <div> with id __next.

I am most curious about the following two sites, what they could use:

A software tools is welcome to propose to get infos about used technologies in websites.

Solution

  • You can use Wappalyzer: https://www.wappalyzer.com/

    Or tech specific devtools like the VueJS ones or Vue telescope, then React ones etc...

    Otherwise, checking the source code.

    For the first one

    enter image description here

    For the second one

    enter image description here

    Then it comes down to know a bit of e-commerce platforms etc.