How can I find out what a website is built with?

Use Wappalyzer to check public website signals such as scripts, headers, cookies, and JavaScript globals. The lookup returns detected technologies, and can also include company and contact data depending on your plan.

What can a built with checker detect?

Wappalyzer can identify technologies such as CMSs, ecommerce platforms, frameworks, analytics tools, advertising tags, hosting providers, CDNs, and other website software categories.

What is a good BuiltWith alternative?

Wappalyzer is one option for teams that need website technology lookup, browser-based research, technographic lead generation, API access, and workflow-oriented data enrichment.

Technology lookup

Website technology checker for lookups, bulk analysis, and enrichment

Use Wappalyzer to find out what a website is built with, from CMS and ecommerce platforms to analytics tools, frameworks, and infrastructure services.

Look up a single domain or analyze thousands at once to qualify accounts faster, personalize outreach, and enrich your CRM with technology, company, and contact data.

Research in browser Enrich in CRM Automate with API

Enter a company website to reveal its technology stack, company profile, and contact details where available.

Wappalyzer is trusted by thousands of professionals world-wide

Wappalyzer has proven to be a great tool to help us break down the aggregate analysis of how the web is doing by various technologies. Ilya Grigorik
Principal Engineer at Shopify

I use Wappalyzer all the time and it's been invaluable in being relevant in my outreach. Michael Petselas
Customer Growth Specialist at HubSpot

These days you need advanced marketing tools to stand out from the competition. Wappalyzer helps us do just that. Thomas Alibert
Growth Engineer at PayFit

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