datafast

Accelerate adoption of DataFast analytics across any stack by codifying the installation, attribution, event, proxy, and API patterns that drive reliable conversion intelligence

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Install skill "datafast" with this command: npx skills add blink-new/claude/blink-new-claude-datafast

When to Use This Skill

  • You need to instrument a website (static, SPA, Next.js, Astro, etc.) with DataFast tracking.
  • Revenue needs to be attributed to marketing channels (Stripe, LemonSqueezy, Polar, custom providers).
  • You want to record custom events/goals reliably despite ad blockers.
  • You must proxy the tracker/script for increased data quality or hashed navigation.
  • You want to export/import historical analytics or query DataFast APIs.

Quickstart (4 steps)

  1. Install the tracking script inside <head>: 
    <script
  defer
  data-website-id="dfid_XXXX"
  data-domain="example.com"
  src="https://datafa.st/js/script.js"
></script>
    • Customize via data-allow-localhost, data-api-url, data-debug, data-allowed-hostnames, data-disable-console, data-allow-file-protocol.
    • Include the datafast-queue snippet to queue calls that happen before the library loads.
  2. Connect payment providers (Stripe, LemonSqueezy, Polar, Shopify, etc.) from the Revenue tab so DataFast auto-tracks revenue.
  3. Add custom goals/events with window.datafast("my_goal"), data-fast-goal attributes, or the server-side Goals API.
  4. Optional proxy to bypass ad blockers: rewrite /js/script.js and /api/events to your domain and forward visitor IP with x-datafast-real-ip.

Installation Reference

  • Scripts load via <Script /> components in frameworks (Next.js App Router, React, Vue, Astro, etc.) or declaratively in public/index.html.
  • For hash-based navigation, use the hash-enabled script https://datafa.st/js/script.hash.js.
  • Use GTM, Shopify, Webflow, Wix, Podia, Kajabi, Ghost, Bubble, Framer, Astro, React Router, Laravel, Django, FastAPI, Flask, Express, PHP, Nginx, Firebase, Rocket, etc., by dropping the same script into the <head> or platform-specific head/custom code sections.

Revenue Attribution Best Practices

  • After the tracking script is live, go to Website Settings → Revenue and add each payment provider.
  • Always pass datafast_visitor_id (and optionally datafast_session_id) when creating checkout sessions:
    • Stripe Checkout / PaymentIntent: read the cookies from cookies() or request.cookies and add them to metadata.
    • LemonSqueezy: include DataFast cookies under custom.
    • Polar: add cookies to metadata.
    • Paddle / Dodo Payments / Easytool / Custom: call the Payments API or trigger a payment goal with the customer email.
  • For gateways where DataFast already pulls revenue (Shopify, Stripe, LemonSqueezy, Polar), keep the tracking snippet installed but omit redundant manual events.
  • Document the metadata mapping and ensure downstream jobs read datafast_visitor_id for each financial event.

Custom Events & Goals

Method 1 – window.datafast() (client-side)

  • Fire window?.datafast("goal_name") on clicks, success pages, or after API responses.
  • Record parameters: window.datafast("checkout", { price: "49", plan: "pro" }).

Method 2 – HTML data attributes

  • Add data-fast-goal="goal_name" to buttons/links.
  • Enrich with data-fast-goal-* attributes (data-fast-goal-price="49" becomes { price: "49" }).

Method 3 – Server-side Goals API

  • POST to https://datafa.st/api/v1/goals with datafast_visitor_id, name, and optional metadata.
  • Authenticate with Authorization: Bearer YOUR_API_KEY.
  • Ensure the visitor already had at least one pageview (tracked via the script).

Funnels, Scrolls, & Filters

  • Use data-fast-scroll on critical sections (features, pricing, testimonials) to send scroll goals when 50% of the element is visible.
  • Combine scroll goals with funnels (landing page visit → feature scroll → CTA click) to spot drop-offs.
  • Track UTM/ref/via parameters automatically tracked by DataFast; encourage marketing links to include ?ref=, ?utm_source=, ?utm_medium=, ?utm_campaign=, ?utm_term=, and ?utm_content.
  • Use filters to slice by country, device, campaign, URL path, or custom goals; hover charts expose filter shortcuts.
  • Provide docs for datafast_ignore localStorage to exclude internal traffic.

Proxy & Hosting Guidance

  • Proxy requests so the script loads from /js/script.js and events post to /api/events on your domain.
  • Forward the visitor IP with x-datafast-real-ip to keep geolocation accurate.
  • Next.js rewrites, Express HTTP proxy, Flask/FastAPI routes, PHP scripts, Nginx/Caddy rules, Firebase Functions, and DigitalOcean/Nginx examples are ready-made patterns—adapt whichever matches your stack.
  • Allowlist additional domains via data-allowed-hostnames="app.io,shop.example.com" and set data-domain to the root domain to share cookies across subdomains.
  • Use data-api-url or datafast_events endpoints when custom routing is needed; the tracker auto-detects proxied setups.

API & Export/Import

  • DataFast APIs (Overview, Timeseries, Devices, Pages, Countries, Referrers, Campaigns, Goals, Payments, Visitors, Metadata, Realtime) all require Authorization: Bearer <API_KEY>.
  • Use the Payments API to push revenue from unsupported providers: include amount, currency, transaction_id, and the visitor ID.
  • Use the Goals API for server-side events (max 10 metadata keys).
  • Import Plausible exports into DataFast to keep historical data; reference Import your Plausible data.
  • Export to dashboards via the API Playground, Real-time endpoints, or custom scripts.

Mobile & Support

  • Install the DataFast mobile app (iOS/Android) to monitor metrics on the go; connect any site with an API key.
  • Use Google Search Console integration for keyword influence; ensure your domain is verified and you have owner/full permissions.
  • Track GitHub commits in your dashboard to correlate releases with revenue spikes.
  • Reach out to marc@datafa.st or https://feedback.datafa.st/ for help, feature requests, or troubleshooting.

Troubleshooting Checklist

  • Script not firing headers? Confirm the tag is inside <head> and the data-website-id domain matches data-domain.
  • No revenue? Verify payment provider connection plus metadata cookies in Stripe/LemonSqueezy/Polar sessions.
  • Goals not recorded? Ensure goal names use lowercase/underscores/hyphens and do not exceed 64 characters.
  • Vercel preview showing no data? Enable data-allow-localhost="true" during staging or rely on proxied script in production.
  • Proxy showing all visitors from server IP? Add x-datafast-real-ip or forward X-Forwarded-For.

References

  • Script configuration reference: data-allowed-hostnames, data-api-url, data-allow-localhost, data-disable-console, data-debug.
  • Revenue attribution guides (Stripe Checkout, PaymentIntent, Checkout Links, LemonSqueezy, Polar, Paddle, Dodo Payments, Easytool).
  • Technology-specific install docs for Shopify, Webflow, Wix, Ghost, Next.js, Astro, Laravel, React Router, Firebase, Astro middleware, Caddy, Nginx, DigitalOcean, etc.

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