What you get for each site
| Field | Example |
|---|---|
| CMS and ecommerce | WordPress 6.4 · Shopify |
| Analytics and tag managers | Google Analytics (GA4), Hotjar · Google Tag Manager |
| Marketing, ads and CRM | Klaviyo · Meta Pixel · HubSpot |
| Payments | Stripe, PayPal, Shop Pay |
| Email (from public DNS) | Google Workspace or Microsoft 365, plus senders such as SendGrid |
| Hosting and CDN | Vercel · Cloudflare |
| Evidence | Where each technology was found: HTML, scripts, headers, cookies, meta tags or DNS |
Built for lists
- Lead lists. Keep only the sites that use a given technology, or a combination such as Shopify stores that also use Klaviyo.
- Competitor research. See which analytics, ad pixels, testing and marketing tools competitors pay for.
- Change alerts. Monitor mode remembers each stack and reports technologies added or removed since the last run. A new CRM or a replatform is often a buying signal.
- Account research. Public DNS shows the email provider and the SaaS tools a company has verified its domain with.
How it works
Each site is fetched once, politely, and matched against 7,600+ technology fingerprints from the open-source webappanalyzer project (the community successor to the original Wappalyzer fingerprints), plus our own DNS signals. Sites that close themselves to crawlers in robots.txt, or that answer with a bot check, are reported as such and not billed: the tool never works around bot protection. It reads pages without running JavaScript, so a few tools that load only after scripts run can be missed.
Personal data
None. The output is technology names, versions and categories. Emails, phone numbers, names and social profiles are never extracted, and no copy of the pages is kept.