Geo Tier Builder helps webmasters, media buyers, and traffic managers build tiered country lists and GEO allow/block segments for targeting — fast, offline, and private.
Use cases
- Build geo-targeting rules for TDS (301.st, Keitaro, Binom, …)
- Generate Cloudflare WAF or Workers geo-filter expressions
- Generate nginx geo maps or JavaScript conditions
- Prepare country segments for ad campaigns and affiliate offers
- Normalize messy country lists from partners or legacy configs
Features
- 249 countries with flags, 8 regions (EUR, CIS, NA, LATAM, APAC, MENA, AFR, OCE)
- Built-in tier classification — T1, T2, T3 with custom tier overrides
- Filters by region, tier, meta-group (EU, EEA, G7, G20, BRICS, Five Eyes)
- Allow / Block mode toggle
- Favorites and search with instant filtering
- Region select-all checkboxes
- 10 export templates: 301.st TDS CSV, generic CSV/JSON/newline, Cloudflare WAF expression, Cloudflare Workers snippet, nginx map, JS condition
- Smart import — auto-detects ISO2, ISO3, country names, mixed separators, Cloudflare expressions, JSON arrays
- Custom presets — save, load, rename, delete your segments
- Resizable output drawer — copy or download in one click
- Dark / Light / System theme
- English and Russian UI localization
Privacy
- Zero network requests — works 100% offline
- Zero telemetry, analytics, or tracking
- No remote code, no CDN dependencies
- All data stays in local browser storage
- Open source: github.com/investblog/geo-tier-builder
- Permissions:
storageonly (for saving your presets and settings)