I'm looking to create a web app like builtwith, wappalyzer where the site identifies the technology stack of a website searched by the user and also provides list of sites using that technology sorted by incoming traffic. Also would be great if we can even provide contact information of those sites. Please review the examples provided above to understand the type of app I'm trying to build.
This can be used for competitor analysis as well as for lead generation using a list of websites using a specific technology. Need multi user and enterprise account type of access to this web app including monthly subscription cost.
I would prefer to use API's wherever possible and efficient in terms of time and money so that it doesn't need building this from scratch.