What is ParityEdge and what does it do?

ParityEdge is a sub-10ms edge Purchasing Power Parity (PPP) localization platform and developer SDK. It converts global SaaS pricing into regional discounts across 190+ countries, injects coupons into Stripe and Lemon Squeezy checkouts, and renders isolated Shadow DOM banners with near-zero layout shift (<0.01 CLS).

How do I install the parityedge npm package?

You can install the official parityedge package via npm by running `npm install parityedge` (or `pnpm add parityedge`, `yarn add parityedge`). It has zero third-party runtime dependencies and is under 3 kB gzipped.

How does ParityEdge prevent VPN abuse on discounted pricing?

ParityEdge inspects incoming Autonomous System Numbers (ASNs) at the edge against a comprehensive threat database of 500+ commercial datacenter and proxy providers (such as AWS, Google Cloud, DigitalOcean, Hetzner). Datacenter and VPN visitors are automatically served standard base pricing to stop geographic arbitrage.

How do I use ParityEdge with React and Next.js 15?

After installing `parityedge`, import the React hook and banner component: `import { useParityEdge, ParityBanner } from "parityedge/react";`. It provides zero-flicker SSR hydration and automatic price mutation.

Platform Features

Platform Features & Security

Q: How do I install the parityedge npm package?

You can install the official parityedge package via npm by running `npm install parityedge` (or `pnpm add parityedge`, `yarn add parityedge`). It has zero third-party runtime dependencies and is under 3 kB gzipped.

Q: How does ParityEdge prevent VPN abuse on discounted pricing?

ParityEdge inspects incoming Autonomous System Numbers (ASNs) at the edge against a comprehensive threat database of 500+ commercial datacenter and proxy providers (such as AWS, Google Cloud, DigitalOcean, Hetzner). Datacenter and VPN visitors are automatically served standard base pricing to stop geographic arbitrage.

Q: How do I use ParityEdge with React and Next.js 15?

After installing `parityedge`, import the React hook and banner component: `import { useParityEdge, ParityBanner } from "parityedge/react";`. It provides zero-flicker SSR hydration and automatic price mutation.

Deep-dive into ParityEdge's core engine capabilities, including regional discount presets, anti-VPN arbitrage shielding, and real-time global edge cache synchronization.

Purchasing Power Parity (PPP) Tiers & 1-Click Presets

ParityEdge categorizes all 190+ sovereign nations into three World Bank income tiers while providing one-click geographical presets for instant regional discounting:

Tier 1: High Income Markets0% (Baseline Standard Pricing)

United States, United Kingdom, Germany, Japan, Canada, Australia, France, Switzerland, Singapore (32 countries).

Tier 2: Mid-Income MarketsDefault: 30% OFF • Auto-Applied at Checkout

Brazil, Mexico, Poland, Turkey, South Africa, Malaysia, Thailand, Chile, Argentina, Romania (48 countries).

Tier 3: Emerging MarketsDefault: 50% OFF • Auto-Applied at Checkout

India, Nigeria, Pakistan, Indonesia, Philippines, Egypt, Vietnam, Bangladesh, Kenya, Ghana, Sri Lanka.

1-Click Regional Batch Presets:

Inside the project settings, clicking “South Asia (50%)”, “LATAM (40%)”, “Eastern Europe (30%)”, or “Sub-Saharan Africa (50%)” automatically populates batch override rules for all countries in that geographic zone in one click.

Individual Country Overrides

Need a special campaign for a single market? Country overrides take precedence over general Tier rules:

// Rule Evaluation Priority Hierarchy:

• Country Override (e.g. Argentina = 60% OFF)

• Tier 3 Emerging Default (50% OFF)

• Tier 2 Mid-Income Default (30% OFF)

• Tier 1 Baseline (0% OFF, no banner displayed)

Anti-VPN & Datacenter Proxy Shield

A common concern with localized pricing is VPN arbitrage (users in high-income countries using VPNs to spoof locations). ParityEdge solves this natively at the network edge:

Autonomous System (ASN) Guard

Every request is evaluated against known hosting and cloud datacenters (e.g. AWS ASN 16509, GCP ASN 15169, DigitalOcean ASN 14061, Hetzner ASN 24940).

Silent Fail-Safe Fallback

When a datacenter or VPN proxy is detected, ParityEdge returns eligible: false (flagged as a Datacenter Proxy). The visitor silently sees standard full pricing without disruptive error alerts.

Read our architectural deep-dive on stopping datacenter proxy arbitrage in SaaS:

Stopping VPN Arbitrage at the Edge →

Real-Time Global Edge Cache Synchronization

When you adjust a discount rate or update banner styling in the ParityEdge control plane, changes are pushed synchronously to our distributed edge network. Updates propagate globally across all edge nodes in milliseconds without requiring manual redeployments.

Automated Regional Holiday & Festive Sales Engine

Boost international conversions during high-volume cultural and regional shopping events worldwide without manual calendar scheduling:

Diwali Festive Boost

India & South Asia

Auto-boosted regional coupon with festive banner accents.

Black Friday / Cyber Week

US, EU & Global

Pre-scheduled annual promotional discounts with live countdown timer.

Lunar New Year

East & Southeast Asia

Spring festival regional discount campaign for China, HK, SG, TW.

Ramadan & Eid Mubarak

MENA & Southeast Asia

Holiday sales discounts tailored for Middle East & Gulf economies.

Singles' Day (11.11)

Asia-Pacific

High-velocity 24-hour flash discount automation.

Golden Week

Japan

Localized springtime holiday promotional pricing.

60-Second Zero-Code Drop-In & Automatic Checkout Link Mutation

ParityEdge requires zero build steps or complex SDK dependencies. Drop a single script tag into your HTML header or no-code platform settings:

The embed automatically scans your page for checkout links (Stripe Payment Links, Lemon Squeezy) and appends prefilled regional discount coupon parameters on the fly with zero layout shift (<0.01 CLS).

Next: Banner Customizer & Shadow DOM

Explore banner placement options, built-in themes, dynamic copy tokens, and custom CSS.

Banner Customizer