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Dev tools · April 6, 2026

Domain Availability Checker

Private, open-source bulk domain availability checker.

Visit site ↗Alternativestop 22% of April 2026

What it does

Automate your domain research with our open-source Bulk Domain Availability Checker. Combine lightning-fast RDAP APIs with reliable registrar scraping for 100% accurate, multi-TLD bulk searches. Your data stays private and local-first—no one can front-run your ideas. Features include dynamic grid analytics, custom TLD injection, smart filtering, CSV export, and persistent session memory. Check hundreds of domains instantly right from your browser!

Does the same job

all alternatives →
  • tldxMay 2026 · github.com · ▲109

    Fast CLI to bulk-check domains via RDAP & MCP

  • Domain Availability Checker2022 · ▲78

    Check domain and compare prices of best registrars

  • UC
    Using Cloudflare 1.1.1.1 DNS over HTTPS API to bulk search domain TLDs2024 · supersaas.dev · ▲11

    I found out Cloudflare has a DNS over HTTPS api via 1.1.1.1 resolver, figured I'd make a small tool out of it, as somene who keeps checking domain names for side projects which I never build, this kinda helps me look for something. It's not fully accurate, because it returns unavailable even for parked pages, which technically are available, but works for me. It just checks for A records via this endpoint https://cloudflare-dns.com/dns-query?name=${domain}&type=A Just make sure to pass this header - "application/dns-json"

  • Fast Domain CheckerJul 2026 · chromewebstore.google.com · ▲4

    Lightning-fast domain availability checker with AI assistant

  • Instant Domain Search2015 · ▲141

    See Domain Name Search Results As You Type

  • FA
    Fast and efficient domain checking tool2013 · instantname.me · ▲65

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