StackPulse detects WordPress on 22,237 websites — 19.31% of the 115,150 domains in the index — making it the #1 cms technology we track. Updated October 27, 2026.
StackPulse currently detects WordPress on 22,237 websites, which is 19.31% 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 WordPress?
Open the free StackPulse lookup, enter the domain and the cms section will list WordPress if its scripts, headers or markup are present. Developers can call GET /v1/lookup/:domain.
Can I download a list of websites that use WordPress?
Yes. Lead Export filters the index by WordPress (optionally combined with other technologies) and streams the matching domains as CSV, up to 50,000 rows per file.
What is WordPress?
WordPress is a cms technology. It ranks #1 of 4 cms technologies by number of websites in the StackPulse index.
Look up any domain by API
One call returns the ecommerce platform, payment gateways, marketing pixels and infrastructure. Results are cached for a week.