Choose the best domain extension for your SaaS
The best SaaS extension depends on audience trust, product category, availability, renewal cost, and how the full domain sounds aloud. No single extension is right for every software company.
NameFinder lets you generate names across several extensions, verify availability, and compare estimated standard registration and renewal prices.
Real RDAP Verification
Every name is verified live against official WHOIS/RDAP registries across .com, .io, .ai, .dev, and .app — no stale, cached guesses.
Multi-Namespace Handles
Check matching social handle availability across GitHub, npm, YouTube, X, and Instagram in one pass alongside your domain search.
Honest Registrar Prices
Transparent wholesale prices directly from Porkbun, Namecheap, and Cloudflare — zero affiliate price markups or registration traps.
Frequently Asked Questions
Is .com always best for SaaS?
.com is familiar and broadly trusted, but it may not justify a weaker or confusing label. A clear alternative extension can be better for some audiences.
Which extension is best for developer SaaS?
.dev and .io communicate a technical audience, while .app emphasizes the product. Compare customer familiarity, HTTPS requirements, price, and matching namespaces.