Tech Stack Detector: Wappalyzer & BuiltWith Alternative
Pricing
from $5.00 / 1,000 website scanneds
Tech Stack Detector: Wappalyzer & BuiltWith Alternative
Find out what any website is built with (tech stack lookup): CMS, ecommerce, analytics, frameworks, CDN, hosting and email provider. 7,600+ technologies from open Wappalyzer-format fingerprints. Fast mode, or Deep scan in a real browser. Bulk lists, clean JSON.
Pricing
from $5.00 / 1,000 website scanneds
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Developer
SwiftKit
Maintained by CommunityActor stats
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5 hours ago
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Website Tech Stack Detector: CMS, Analytics, Ecommerce
Find out what any website is built with. Paste a list of domains, get back the technologies behind each one: CMS, ecommerce platform, analytics and ad tags, JavaScript frameworks, CDN, hosting, payment providers, security tools, SSL issuer and email provider.
It checks each site against 7,600+ technology fingerprints from the open-source webappanalyzer project.
Who it's for
- Sales and lead generation: find every Shopify store, WordPress site or HubSpot user in your list, and personalize outreach by the tools they already use.
- Agencies: audit a prospect's site before the first call.
- Market research: count how many sites in a niche use each platform.
- Competitor tracking: see when a competitor switches analytics, CMS or hosting.
- AI agents: one call, clean JSON, the same fields every time.
Input
| Field | What it does |
|---|---|
| Websites | One per line: stripe.com or https://www.notion.so/pricing. |
| Deep scan (real browser) | Opens each site in headless Chrome to also catch tools that load with JavaScript. In our tests it found about 2× more technologies (e.g. 33 → 56 on hubspot.com). |
| Include details | Version, confidence, categories, vendor website, open source or SaaS, for each technology. |
| Check DNS and SSL | Also reads public DNS records and the SSL certificate. Finds the email provider (Google Workspace, Microsoft 365…), DNS host and more. |
| Respect robots.txt | Skips sites that ask all bots to stay away. Skipped sites are free. |
Output
One row per website:
status is ok, http_403 (the site refused the visit), unreachable, invalid_url or
blocked_by_robots_txt.
Pricing
You pay per website scanned successfully: a fast scan or a deep scan (priced higher because it runs a real browser). Unreachable sites, refused visits and sites skipped by robots.txt are free. See the Pricing tab.
How it works, honestly
- It loads each homepage once (fast mode) or opens it in headless Chrome (deep scan), like a normal visitor, and reads the HTML, scripts, meta tags, response headers and cookies. With DNS on, it also reads public DNS records and the SSL issuer.
- Fast mode reads the page source without running JavaScript, so tools that only appear after JavaScript runs may be missed. Turn on Deep scan to catch those.
- Some large sites block automated visits (
http_403); you're not charged for those. - Detection is based on public fingerprints. Rare or custom tools may not be listed.
Open source
This Actor's source code is public on GitHub under the GPL-3.0 license, as required by the fingerprint data it uses. Technology fingerprints © webappanalyzer contributors.
Questions or a wrong detection?
Open an issue on the Issues tab with the site and what you expected.
