StackPulse detects Express on 1,386 websites — 1.2% of the 115,150 domains in the index — making it the #1 web framework technology we track. Updated October 27, 2026.
StackPulse currently detects Express on 1,386 websites, which is 1.2% of the 115,150 domains in the index. The count is refreshed as the crawler re-scans the web.
How do I check whether a website uses Express?
Open the free StackPulse lookup, enter the domain and the web framework section will list Express if its scripts, headers or markup are present. Developers can call GET /v1/lookup/:domain.
Can I download a list of websites that use Express?
Yes. Lead Export filters the index by Express (optionally combined with other technologies) and streams the matching domains as CSV, up to 50,000 rows per file.
What is Express?
Express is a web framework technology. It ranks #1 of 1 web framework technologies by number of websites in the StackPulse index.
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