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Build technographic lead lists from JavaScript fingerprints
Published April 28, 2026 · Lead gen · 2 min read
Technographics — the tools a company runs — are one of the strongest B2B buying signals. If you sell a Shopify app, your market is Shopify stores; if you sell a Klaviyo alternative, it's stores on Klaviyo. Because every tool ships an identifiable footprint, you can build that list directly from source instead of buying a stale database.
Compose the query
Start with the platform footprint, then qualify with a second term:
- Uses A and B:
"cdn.shopify.com" "static.klaviyo.com"— Shopify + Klaviyo. - Uses A, not B (switch targets):
"wp-content/plugins/woocommerce" -"js.stripe.com/v3"— WooCommerce stores not yet on Stripe. - Either of two platforms:
"cdn.shopify.com" OR "cdn11.bigcommerce.com". - In a market: append
site:deorsite:com.au.
Export and enrich
Confirm a sample in full source, then export the domain list as CSV. SearchWebCode deliberately stops at the list — no bundled CRM, no contact scraping — so you run it against your own enrichment and outreach. The trade-off is cost: pay-as-you-go per search instead of a monthly platform fee, which suits periodic list-building far better than a subscription. If you'd rather a catalogued directory with company data attached, that's what tools like BuiltWith sell; this is the direct-from-source, build-it-yourself route.
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Frequently asked questions
How is this better than a technographics database?
A footprint search reflects what sites ship right now, verified against live source, rather than a periodically-refreshed database. You control the exact 'uses X, not Y' logic and export the raw domains.
Can I find companies using one tool but not a competitor?
Yes — that's the switch-target query: footprint of tool A with a minus-excluded footprint of tool B, e.g. WooCommerce stores not on Stripe.
Do I get contact data?
No — SearchWebCode returns domains and source, not contacts. Export the list and run it through your own enrichment. That keeps it usage-priced instead of a monthly platform fee.