TLD List API
Browse 500+ domain extensions organized into 15 categories
api.robotdomainsearch.com/tlds
── Try It Live ──
┌──────────────────────────────────────────────────────────────────┐
│ Click the button above to browse all TLD categories │
│ Results will appear here in real-time... │
└──────────────────────────────────────────────────────────────────┘
── How It Works ──
1
Fetch TLD List
Call the /tlds endpoint to get all supported extensions
2
Filter & Browse
Filter by category (technology, business, etc.) or type (gTLD/ccTLD)
3
Build Your UI
Populate dropdowns, search interfaces, and browsing experiences
── 15 Categories ──
┌──────────────────────────────────────────────────────────────────────────────┐ │ │ │ Technology .dev, .io, .app, .tech, .ai, .software, .cloud ... │ │ Business .com, .biz, .inc, .llc, .company, .consulting ... │ │ Finance .finance, .money, .bank, .tax, .investments ... │ │ Creative .design, .art, .studio, .photography, .film ... │ │ Lifestyle .life, .style, .fashion, .travel, .yoga ... │ │ Education .education, .academy, .college, .courses ... │ │ Health .health, .clinic, .dental, .fitness ... │ │ Legal .law, .legal, .attorney, .lawyer ... │ │ Food .cafe, .restaurant, .recipes, .pizza, .wine ... │ │ Sports .sport, .football, .hockey, .racing ... │ │ Real Estate .house, .homes, .realty, .property ... │ │ Adult .adult, .sexy, .porn ... │ │ Geographic .nyc, .london, .tokyo, .berlin, .paris ... │ │ Crypto .eth (via ENS) │ │ Generic .net, .org, .info, .site, .online ... │ │ │ └──────────────────────────────────────────────────────────────────────────────┘
┌──────────────────────────────────┐ │ │ │ Technology .dev .io .app │ │ Business .com .biz .inc │ │ Finance .finance .money │ │ Creative .design .art │ │ Lifestyle .life .travel │ │ Education .academy │ │ Health .health .clinic │ │ Legal .law .legal │ │ Food .cafe .pizza │ │ Sports .sport .racing │ │ Real Estate .house .homes │ │ Adult .adult │ │ Geographic .nyc .london │ │ Crypto .eth │ │ Generic .net .org │ │ │ └──────────────────────────────────┘
── Code Samples ──
# Get all TLDs with categories
$ curl "https://api.robotdomainsearch.com/tlds"
# Filter by category
$ curl "https://api.robotdomainsearch.com/tlds?category=technology"
# Filter by type
$ curl "https://api.robotdomainsearch.com/tlds?type=ccTLD"import requests
r = requests.get("https://api.robotdomainsearch.com/tlds")
data = r.json()
print(f"Total TLDs: {data['total']}")
for cat in data["categories"]:
tlds = ", ".join(cat["tlds"][:5])
print(f"{cat['label']} ({cat['count']}): {tlds}...")const res = await fetch("https://api.robotdomainsearch.com/tlds");
const data = await res.json();
console.log(`${data.total} TLDs in ${data.categories.length} categories`);
data.categories.forEach(cat => {
console.log(`${cat.label}: ${cat.tlds.slice(0, 5).join(", ")}...`);
});── Related APIs ──
┌──────────────────────────────────────────────────────────────────────────────┐ │ │ │ → Domain Availability API — Check availability across TLDs │ │ → Domain Registration API — Get registrar links and pricing │ │ → ENS API — Check .eth name availability │ │ → Full API Reference — Complete /tlds endpoint documentation │ │ │ └──────────────────────────────────────────────────────────────────────────────┘
── Frequently Asked Questions ──
What is the TLD List API?
RobotDomainSearch's TLD List API returns all 500+ supported top-level domains organized into 15 categories like technology, business, crypto, and geographic. You can filter by category or TLD type (gTLD vs ccTLD).
How many TLDs are supported?
RobotDomainSearch currently supports over 500 TLDs including popular gTLDs (.com, .net, .org), new gTLDs (.dev, .app, .io), ccTLDs (.uk, .de, .jp), and specialty extensions (.crypto, .eth, .ai).
What categories are available?
TLDs are organized into 15 categories: technology, business, finance, creative, lifestyle, education, health, legal, food, sports, real estate, adult, geographic, crypto, and generic. Each category contains related extensions.
Do I need an API key?
No. RobotDomainSearch is free during beta with no API key required. You get 60 requests per minute with full access to all endpoints.
Can I filter TLDs by type?
Yes. Use the type parameter to filter by gTLD (generic top-level domains) or ccTLD (country-code top-level domains). You can also filter by category.
How is this useful?
Use it to build domain search interfaces, populate TLD dropdown menus, create category-based browsing experiences, or validate TLDs in your application.
┌──────────────────────────────────────────────────────────────────────────────┐ │ │ │ Ready to get started? │ │ │ └──────────────────────────────────────────────────────────────────────────────┘
┌──────────────────────────────────┐ │ │ │ Ready to get started? │ │ │ └──────────────────────────────────┘