Geo Tier Builder — Country Tiers & GEO Lists

Name: Geo Tier Builder — Country Tiers & GEO Lists
Author: 301.st

By: 301.st

Build tiered country lists and GEO allow/block segments for ad targeting, TDS rules, Cloudflare WAF, and traffic management.

Geo Tier Builder — Country Tiers & GEO Lists

Download

Install

Features & Capabilities

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, etc.)
Create 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
Filter 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 + Russian 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: storage only (for saving your presets and settings)

User Growth & Download Statistics

Add-on

By:

301.st

Daily users:

Version:

0.3.0 Last updated: 2026-05-17

Version code:

6266065

Creation date:

2026-03-05

Risk:

Permissions:

storage

Size:

552.21KB

Email:

su*****@301.st

URLs:

Website

Full description:

Source:

Firefox Add-ons Store

Data ingested on:

2026-07-06

Compare stats and ranking:

Ranking

# 63,963 ▲ 42,348

Other rankings

#95 in country keyword 26 ▲ 63#105 in build keyword 12 ▲ 68

For Developers

Monetize with App Pass Boost with Extension Booster

Contact the developer

Chrome-Stats does not own this Firefox add-on. Please use these information below to contact the Firefox add-on developer.

Developed by:

301.st

Firefox Add-ons Store

https://addons.mozilla.org/firefox/addon/geo-tier-builder/

Email:

su*****@301.st

Website:

https://301.st

Is Geo Tier Builder — Country Tiers & GEO Lists Safe?

Risk impact

Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.

Geo Tier Builder — Country Tiers & GEO Lists does not require any sensitive permissions.

Risk impact analysis details

Risk likelihood

Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.

Geo Tier Builder — Country Tiers & GEO Lists may not be trust-worthy. Avoid installing if possible unless you really trust this publisher.

Risk likelihood analysis details

High This extension has low user count. Unpopular extensions may not be stable or safe.
Medium **** ********* *** ******* ** *** **** * ******* *** ******* *** *** ** ****** ** *****
Medium **** ********* *** ***** ** *** **** * ******* *** ********** *** *** ** ****** ** *****