I built a tool that finds websites by their tech stack
Test the tool by querying for Shopify stores in the US with Klaviyo, Mailchimp, Omnisend or Privy and verify the returned domains.
Test the tool by querying for Shopify stores in the US with Klaviyo, Mailchimp, Omnisend or Privy and verify the returned domains.
Summary
dev.versiondb.io is a free web‑scraping service that lets users search for domains by country, technology stack, keywords, TLD, language, contact details, traffic, and crawl date.
The interface accepts filters such as country=US and include_technologies=Shopify, Klaviyo, Mailchimp, Omnisend, Privy, and requires a date range. An example query URL pulls Shopify stores in the US that use Klaviyo, Mailchimp, Omnisend or Privy between 1 Sep 2025 and 28 Feb 2026, returning a list of roughly 400 000 domains.
Data is sourced from a 400 k‑domain sample set available on GitHub (github.com/vdbio/versiondb_samples). All email addresses comply with RFC 5322, though deliverability is not guaranteed. To download a lead list, users must click “Proceed to Checkout,” which redirects to a Stripe sandbox page that does not accept live payments.
The tool is aimed at agencies and marketers looking for targeted leads and can be used to generate lists for outreach or market research.
Key changes
- Introduces dev.versiondb.io for tech‑stack detection and filtering by country, technologies, keywords, TLD, language, contacts, traffic, and crawl date.
- Provides an example query URL that pulls Shopify stores in the US using Klaviyo, Mailchimp, Omnisend or Privy between 1 Sep 2025 and 28 Feb 2026.
- Data set covers approximately 400 000 domains from September 2025 to February 2026.
- GitHub link to versiondb_samples hosts the sample data set.
- Stripe integration operates in sandbox mode; no live payments are accepted.
- Users must click “Proceed to Checkout” to download the lead list, but no charge is applied.