.ai vs .dev: capability vs audience

Side-by-side comparison

Both are generic gTLDs. .dev adds mandatory HTTPS via HSTS preload. The decision is positioning.

Capability TLD vs audience TLD

.ai answers 'what does it do' (AI). .dev answers 'who is it for' (developers). For a model-serving company selling to engineers, both fit. The brand strategy decides — lead with what you do or with who you serve.

Decision framework

Pick .ai if AI is the headline and the product can be sold to non-developers later. Pick .dev if the brand is permanently developer-first and AI is incidental. For AI devtools targeting both technical buyers and decision-makers, .ai usually wins on category recognition.

Frequently asked questions

What is .dev and who runs it?

.dev is a generic TLD launched in 2019 by Google Registry, marketed to developers and engineering teams. Like .app, it has mandatory HSTS preloading — every .dev domain is HTTPS-only at the browser level via the Chromium HSTS preload list.

Is .dev cheaper than .ai?

Yes. Registry pricing runs ~$15–25/yr for .dev versus ~$70/yr for .ai on a mandatory 2-year term. The aftermarket for premium .dev is shallower than .ai but real one-word .dev names still clear $25K–$250K.

Is .ai or .dev better for an AI developer tool?

Depends on the buyer. If the product is an AI model, agent, or end-user AI capability, .ai signals category. If the product is a tool for developers building with AI (SDK, framework, eval harness, CLI), .dev signals audience. Some brands hold both and pick by surface (.ai for marketing, .dev for docs).

Does mandatory HTTPS on .dev matter?

Marginally. All credible sites are HTTPS in 2026 regardless of TLD. The HSTS preload removes a configuration step and prevents protocol-downgrade attacks at the browser level, but it isn't a meaningful business advantage.

Is .dev good for SEO?

Yes. Generic gTLD with no geo-targeting penalty and no inherent ranking disadvantage. SEO depends on content depth, backlinks, Core Web Vitals, and user signals — not the TLD.

Which TLD do investors prefer?

.ai for AI-category positioning, especially with AI-specialist funds and most generalist Tier-1s. .dev reads as 'tool for developers' and is acceptable to technical seed-stage investors but doesn't carry the category lift of .ai for AI-native companies.

Can I run email on .dev?

Yes. .dev supports full DNS records (MX, SPF, DKIM, DMARC, BIMI) and DNSSEC. Deliverability is identical to .com when DNS is configured correctly. HSTS preload affects HTTP only, not SMTP.

Is .dev better than .io for developer tools?

It depends on connotation. .io reads as 'serious infrastructure or platform' and has deeper aftermarket and stronger brand pattern-matching among engineers. .dev reads more literally as 'developer-focused' and is cleaner for documentation, SDK, and tooling subdomains. Many companies hold both.

Should AI companies use .ai for product and .dev for developers?

Common pattern. Anthropic uses anthropic.com plus claude.ai; OpenAI uses openai.com plus platform.openai.com. The .ai/.dev split (product on .ai, developer surface on .dev) is a reasonable architecture when both domains are available.

Should I own both .ai and .dev defensively?

If budget permits, yes. Defensive registration of the alternate prevents typo-squatting and competitive interference. Annual cost is well under $100 combined. Pick one as primary and 301-redirect the other.

How do I buy a premium .ai or .dev not listed for sale?

Most premium one-word .ai and .dev names trade off-market via brokers. Direct founder outreach typically inflates ask prices 2–5× versus anonymous broker outreach. Use a specialist broker for comp-anchored valuation and escrowed transfer.

Will .ai or .dev pricing stay stable?

.ai renewals have been stable at ~$70/yr; the Government of Anguilla has incentive to keep pricing predictable. .dev pricing has been stable under Google Registry operation. Plan for predictable renewals on both over a 5-year horizon.

Is .dev safer than .ai because of HSTS preload?

Marginally. HSTS preload prevents SSL-stripping at the browser. .ai sites can achieve the same by submitting their domain to the HSTS preload list. Operational security depends on registrar (use hardware-key 2FA and registry lock), not the TLD.