Is .com or .io better for startups? Data from Growth Badger shows users are 3.8x more likely to assume a .com ending when recalling domains[1]. For consumer brands, .com wins on trust and recognition. For tech startups targeting developers or VCs, .io signals tech credibility and offers better name availability at $30-60/year vs premium .com prices.
.com vs .io
Which domain extension is right for your project?
| Feature | .com | .io |
|---|---|---|
| Price | $10-15/year | $30-60/year |
| Recognition | Universal | Tech-focused |
| Availability | Very limited | Good |
| Trust Level | Highest | High (in tech) |
| SEO Impact | Neutral | Neutral |
| Email Deliverability | Best | Good |
The Case for .com
You're building a consumer brand. Your customers include people who don't work in tech. They type .com automatically and might not trust unfamiliar extensions.
A good name is available. If you can get a memorable, short .com that matches your brand, take it. Verisign reports over 160 million .com registrations as of Q3 2025, making it the largest TLD by far[1]. Good names are increasingly rare, but .com remains the gold standard when available.
Email matters a lot. Some corporate spam filters still flag non-.com domains more frequently. If you're emailing enterprise clients, .com provides slightly better deliverability.
You want maximum credibility. Banks, healthcare companies, and other trust-dependent businesses benefit from .com's universal recognition. Non-tech audiences expect serious companies to use .com. If .com is right for you but .io is tempting, see how .com stacks up against .co as another alternative.
The Case for .io
You're a tech company. SaaS products, developer tools, APIs, and tech startups have adopted .io as standard. Your audience expects tech companies to use tech-signaling domains.
Your .com is taken or expensive. Good .io names cost $30-60/year. Good .com names cost thousands or more when you can find them. Research from Growth Badger found that users are 3.8x more likely to assume a .com ending when they forget a domain's extension[2]. Despite this, .io offers better inventory at reasonable prices for tech companies whose audiences recognize the extension.
You want to signal "tech startup." Investors recognize .io. Developers recognize .io. If your users and funders work in tech, .io communicates the right message about your company.
You need a short, memorable name. Finding a two-word .io is much easier than finding a two-word .com. Better availability means better names at standard prices. For techniques on finding concise domains, see our guide to short domain name ideas.
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The Verdict
For tech companies targeting technical audiences: .io is a legitimate choice that won't hurt your credibility, SEO, or fundraising. Many successful startups use .io.
For everyone else: .com remains the safer choice. If you're targeting consumers, mainstream businesses, or non-technical audiences, .com's universal recognition outweighs .io's better availability.
The pragmatic answer: Get the best name you can in .com. If nothing good is available or affordable, .io is the best alternative for tech companies.
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Try DecideDomain FreeCommon Questions
Is .io as good as .com?
For tech companies targeting developers or other tech companies, .io performs nearly as well as .com. For consumer brands or mainstream audiences, .com still has an edge in trust and recognition. The gap has narrowed significantly since 2015.
Will .io hurt my SEO?
No. Google treats .io as a generic TLD, not a country-specific one. Your SEO depends on content quality and backlinks, not your TLD. Sites on .io and .com rank equally well for the same content.
Why is .io more expensive than .com?
.io costs $30-60/year compared to $10-15 for .com because the registry sets higher wholesale prices. The tech industry's demand keeps prices elevated despite better name availability than .com.
Should I buy both .com and .io?
If budget allows, yes. Own your primary brand in both extensions to prevent competitors or squatters from causing confusion. Use one as your main domain and redirect the other. This costs an extra $30-60/year but protects your brand.
References
- Verisign Domain Name Industry Brief Q3 2025: .com and .net domain registration statistics (2025)
- Growth Badger TLD Perception Study: User trust and recall across domain extensions (2024)