10 Best Domain Name Search Tools for Founders [2026 Updated]

1. GoDaddy Domain Search

• Type: Free
• URL: https://www.godaddy.com/domains/domain-name-search
• Overview: GoDaddy's domain search lets you check availability across popular TLDs and presents suggested alternatives and aftermarket listings in real time. It combines availability checks with pricing, premium domain marketplace results, and quick registration workflow.

2. Namecheap Domain Search

• Type: Free
• URL: https://www.namecheap.com/domains/domain-name-search/
• Overview: Namecheap provides an instant domain availability checker with bulk search, suggestion filters, and clear pricing for many TLDs. The tool also highlights privacy and add-on options and guides users from discovery to registration.

3. Squarespace Domains Search

• Type: Free
• URL: https://www.squarespace.com/domains
• Overview: Squarespace’s domain search helps users find and register domains and shows available TLDs, pricing, and automatic DNS setup for Squarespace sites. It focuses on streamlined brand-to-site setup with integrated renewal and management options.

4. Domainr

• Type: Free
• URL: https://domainr.com
• Overview: Domainr searches across hundreds of TLDs and edge-case ccTLD hacks to surface short, brandable, and alternative domain variants quickly. It emphasizes creative suggestions, real-time availability, and links to registrars for purchase.

5. Instant Domain Search

• Type: Free
• URL: https://instantdomainsearch.com
• Overview: Instant Domain Search returns availability as you type, offering instant alternatives, popular TLD checks, and aftermarket listings without waiting for page reloads. The tool is optimized for speed to aid fast brainstorming and quick lookups.

6. Lean Domain Search

• Type: Free
• URL: https://leandomainsearch.com
• Overview: Lean Domain Search generates thousands of name combinations by pairing your keyword with common words and immediately filters results by availability. It highlights short, brandable domains and sorts results by popularity and length to speed selection.

7. NameMesh

• Type: Free
• URL: https://www.namemesh.com
• Overview: NameMesh is a domain brainstorming and search tool that groups suggestions into categories like common, new, short, SEO, and fun to help pick domain styles. It checks multi-TLD availability and surfaces creative combinations and synonyms for broader inspiration.

8. Dynadot Domain Search

• Type: Free
• URL: https://www.dynadot.com/domain/search
• Overview: Dynadot’s search supports bulk lookups, AI suggestions, and availability across hundreds of TLDs with transparent pricing and free privacy on many domains. It also provides auction and aftermarket tools for acquiring taken domains.

9. Porkbun Domain Search

• Type: Free
• URL: https://porkbun.com
• Overview: Porkbun’s search interface returns instant availability, competitive pricing, and recommended TLD alternatives while including free WHOIS privacy and DNS features on supported domains. The registrar emphasizes low-cost registrations with simple checkout and management tools.

10. WHOIS.net Domain Lookup

• Type: Free
• URL: https://www.whois.net
• Overview: WHOIS.net provides domain availability checks alongside WHOIS records lookup so you can see registration details and ownership for taken domains. It’s helpful for researching current owners, expiration dates, and contact info when pursuing acquired names.