Best TLDs for SaaS Startups in 2026 (Ranked)

Every SaaS founder eventually hits the TLD question: the .com is taken, the budget is limited, and the alternatives are all trying to sell themselves as "the new .com." We rank the ones that actually deliver — and the ones that hurt you more than they help.

The ranking criteria

We scored each TLD on four dimensions:

1. Trust — does a B2B buyer hesitate before clicking?
2. Availability — can you actually register a short, pronounceable name?
3. Total cost — registration + renewal + the premium pricing some registries apply.
4. Fundraising signal — what does this TLD say about your stage and taste?

The rankings

1. .com

Still king. A .com is the only TLD where no one ever wonders whether you're the real company. If you can afford the right .com, buy it. The correct question isn't "can we get by without it?" — it's "what's the highest price at which this is still a rounding error relative to our Series A?"

• Trust: ★★★★★
• Availability: ★☆☆☆☆
• Total cost: ★★★★☆
• Fundraising signal: ★★★★★

2. .ai

The premium SaaS TLD for anything touching AI — which, in 2026, is most SaaS. Commands a real valuation bump when you raise. Carrying costs are high and registry lock-in is a minor concern, but if your product story involves ML, the signal is worth it.

See our full review of .ai.

• Trust: ★★★★☆
• Availability: ★★★☆☆
• Total cost: ★★☆☆☆
• Fundraising signal: ★★★★★

3. .io

The veteran developer-tools TLD. Still solid for infrastructure, devtools, and technical SaaS. Slipping a bit in the general SaaS market as .ai and .app crowd in, but nothing screams "built by engineers" like a crisp .io.

• Trust: ★★★★☆
• Availability: ★★★☆☆
• Total cost: ★★★☆☆
• Fundraising signal: ★★★★☆

4. .app

Google-operated, HTTPS-required, and clean-looking. Excellent choice for consumer-facing SaaS or mobile-first products. Trust is high because buyers read it as "this is an application," not "this is a hacky workaround for the .com being taken."

• Trust: ★★★★☆
• Availability: ★★★★☆
• Total cost: ★★★★☆
• Fundraising signal: ★★★☆☆

5. .dev

Another Google-operated TLD. Great for developer-focused products. Narrower audience than .app but a stronger signal to that audience. We rarely see .dev domains we dislike — the TLD self-selects for products with good taste.

• Trust: ★★★★☆
• Availability: ★★★★☆
• Total cost: ★★★★☆
• Fundraising signal: ★★★☆☆

6. .co

The respectable .com alternative. Columbia's ccTLD, globalized in 2010. Works, doesn't hurt you, doesn't help you either. Appropriate when the .com is permanently out of reach and nothing else fits.

• Trust: ★★★☆☆
• Availability: ★★★★☆
• Total cost: ★★★☆☆
• Fundraising signal: ★★☆☆☆

7. .xyz

Cheap, flexible, and completely acceptable for crypto, Web3, or any community where .xyz is already normalized. Outside of those niches, enterprise buyers still read it as "scrappy." See our separate piece on where .xyz is quietly winning.

• Trust: ★★☆☆☆
• Availability: ★★★★★
• Total cost: ★★★★★
• Fundraising signal: ★★☆☆☆

The tiers we'd skip

• .tech, .cloud, .online — broad-appeal "SaaS-y" TLDs that signal budget constraints. If you must use one, the .tech is the most defensible.
• .biz, .info — these have not aged well. Buyers associate them with spam.
• Brand-new TLDs with no track record — unless you have a very specific branding reason, skip. Fundraising conversations default to "wait, why not the .com?"

The takeaway

If you can get a decent .com, get it. If you can't, the modern SaaS hierarchy is: .ai for AI-native, .io for devtools, .app for consumer SaaS, .dev for developer-focused products. Everything else is a compromise — which is sometimes the right call, but should be a deliberate choice, not the default.

Not sure what your domain is actually worth? Get an appraisal and stop negotiating blind.