Why LeanKeyword has become the go-to alternative to Lean Domain Search — and how it solves every limitation the old tool had.
Finding the perfect available domain name has always been one of the most frustrating steps in launching a new business, blog, or project. You have a great keyword in mind, you type it in, and the tools tell you it's taken. Then they offer a list of suggestions so generic and uninspired that you end up settling for something you'll regret in six months.
For years, Lean Domain Search was the go-to free tool for this problem. It was fast, simple, and free. But the domain name landscape has changed dramatically — and a new generation of keyword domain finders has arrived to meet the moment. LeanKeyword.com is the new standard, and in this article we'll show you exactly why.
To be fair, Lean Domain Search solved a real problem. Enter a single keyword, get a list of domains that include it at the beginning or end, sorted by popularity or length. It automatically checks .com domain availability for free, with no signup required.
For a generation of startup founders and bloggers, it was the fastest way to go from a keyword idea to an available domain. But as millions of users discovered, it came with significant limitations that have only gotten more painful over time.
Lean Domain Search lacks comprehensive TLD support — it predominantly focuses on .com and has limited support for other top-level domains. In 2025, this is a critical flaw. The modern web runs on .io, .ai, .app, .co, .me, .us, .site and dozens of other extensions. AI product founders want .ai. Developers want .io. Mobile apps want .app. Lean Domain Search simply cannot help.
The tool is not highly niche-specific and sometimes produces names that have already been taken. Its word list is small, its combinations are predictable, and there's no way to filter results by what you're actually building. A tech startup gets the same word suggestions as a nature retreat.
Every search uses the same generic word pool regardless of your industry, brand style, or audience. There's no way to tell it "I want tech-sounding words" or "give me brandable one-word style combinations."
If you fall in love with scouthub but .com is taken, Lean Domain Search can't tell you whether scouthub.io or scouthub.co is available. You're completely on your own.
LeanKeyword.com was built from scratch to solve every one of these limitations while keeping what made Lean Domain Search great: completely free, zero signup, and results in seconds.
Hand-picked words that actually make great domain components — no junk, no repetition.
.com, .net, .org, .io, .ai, .app, .co, .me, .us, .site — plus any custom TLD you type in.
Results appear as they're checked — no waiting for everything to finish before you see anything.
Filter by Tech, Brand, Action, Nature, Business, People, Scale, Suffix, and more.
Check 13 TLD extensions for any domain with one click — right inline in the results.
Star domains you like. They're saved to your browser across sessions and copyable as a list.
This is LeanKeyword's secret weapon. Instead of one generic word pool, every word is tagged with a category so you can filter results to match exactly what you're building:
The Suffixes category is especially powerful — it generates the proven startup naming patterns like keyword+ify (think Spotify), keyword+er (like Fiverr), and keyword+ster (like Napster). No other free domain finder does this.
Most domain finders make you stare at a loading spinner while every domain gets checked sequentially. LeanKeyword uses a streaming approach — the first results appear within seconds, and the table fills up live as more checks complete. You can start evaluating options immediately while the rest load in the background.
This is where LeanKeyword truly stands apart. On any domain result — available or taken — click 🔍 Try other TLDs and a panel expands inline showing availability across 13 TLD extensions simultaneously:
scouthub.com — ✗ Taken
scouthub.io — ✓ Available
scouthub.ai — ✓ Available
scouthub.app — ✓ Available
scouthub.co — ✗ Taken
scouthub.me — ✓ Available
Every available TLD is a clickable link that takes you directly to a registrar to register it. Lean Domain Search has absolutely no equivalent feature.
When you type a keyword like portofficial, LeanKeyword checks portofficial.com (or whichever TLD you've selected) first — before any word combinations — and pins it at the very top of results with an "Exact" badge. This is the domain you specifically wanted, answered immediately.
Two opt-in features give power users even more coverage:
scout-hub.com, forge-scout.com. Often available when the unhyphenated version isn't.tryscout.com, getscout.com, usescout.com, joinscout.com. Proven naming patterns used by thousands of successful products.Favorites: Star any domain you like. It's saved to your browser across sessions. When you've built your shortlist, one click copies all starred domains to your clipboard — great for sharing with a co-founder or pasting into a registrar's bulk search.
Shareable search links: Click "🔗 Share search" to copy a URL that pre-fills and runs your exact search for anyone who opens it.
Four registrars per domain: Every available domain shows direct links to Namecheap, GoDaddy, Dynadot, and NameSilo — all pointing to that specific domain for one-click registration.
| Feature | Lean Domain Search | LeanKeyword |
|---|---|---|
| Price | Free | Free |
| Signup required | No | No |
| TLD options | .com only | .com + 9 others + custom |
| Word combinations | Limited generic pool | 666+ curated words |
| Word categories | None | 9 categories |
| Suffix patterns (-ify, -er) | No | Yes |
| Prefix / Suffix control | Yes | Yes |
| Real-time streaming results | No | Yes |
| Exact keyword check | No | Yes — pinned to top |
| Try other TLDs | No | Yes — 13 TLDs per domain |
| Save favorites | No | Yes — browser-saved |
| Shareable search URL | No | Yes |
| Multiple registrar links | No | Yes — 4 registrars |
| Hyphen option | No | Yes |
| Action prefix option | No | Yes |
| Mobile friendly | Partial | Fully responsive |
| Deep search mode | No | Yes |
Startup founders searching for a brandable domain will find the Brand and Tech word categories especially powerful. Searching .ai or .io domains alongside .com in a single search saves hours.
Developers and indie hackers building side projects love the suffix patterns — keyword-ify, keyword-er — and the ability to check .dev, .app, and .io without switching tools.
Domain investors can quickly scan hundreds of keyword combinations across multiple TLDs, star the most promising, and copy the full list to clipboard for bulk registration.
Marketers and brand consultants use the category filtering to generate only brand-appropriate word combinations and the "Try other TLDs" feature to find available alternatives when the first choice is taken.
Anyone naming anything — a blog, a nonprofit, a freelance business, a local service — who has ever stared at a blank screen wondering what to search for next.