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The .icu TLD is a generic top-level domain introduced to provide a short, memorable, and versatile domain extension for websites, brands, and services. Originally pursued by One.com as a branded tool to enhance their web hosting offerings, it is now managed by Shortdot SA and open for public registration. It is often used for technology startups, personal portfolios, short URLs, and campaigns where brevity and distinctiveness are valued.
Open for public registration with no geographic or eligibility restrictions
The .icu extension is a generic top-level domain (gTLD) in the Domain Name System (DNS). It is managed by Shortdot SA. .icu was introduced in 2015. There are currently 473,098 domains registered under this extension. Registration prices start from USD 2.49 - 14.29. DNSSEC adoption stands at 1.3%.
Price range based on 3 registrars. Actual prices may vary.
Compare .icu domain registration and renewal prices across 3 registrars. Prices are in USD and updated daily.
| Registrar | Registration | Renewal | Transfer |
|---|---|---|---|
| dynadot Cheapest | $2.49 | $13.06 | $13.06 |
| porkbun | $2.56 | $12.87 | $12.87 |
| resellerclub | $14.29 | $15.19 | $14.29 |
Prices checked April 7, 2026. Prices exclude ICANN fees where applicable and may vary by registrar promotions or contract terms.
The .icu TLD was delegated to One.com A/S on April 28, 2015, and later transferred to Shortdot SA on February 15, 2018. It was approved under ICANN’s New gTLD Program to support brand identification, security, and service integration for One.com's global customer base. The name was chosen to reflect the universal recognition of 'ICU' as shorthand for 'I see you' or 'intensive care unit,' conveying immediacy, care, and responsiveness.
The .icu TLD serves a specific purpose in the domain ecosystem, providing users with clear context about the websites using this extension.
The .icu TLD is commonly used for the following purposes:
473,098
1.3%
If .icu doesn't meet your needs, consider these alternatives:
| Metric | Value |
|---|---|
| Extension | .icu |
| Type | Generic TLD (gTLD) |
| Total Registrations | 473,098 |
| DNSSEC Adoption | 1.3% |
| Registration Price | USD 2.49 - 14.29 |
| Renewal Price | USD 12.87 - 15.19 |
| Registry Operator | Shortdot SA |
| Introduced | 2015-05-02 |
| Restrictions | Open for public registration with no geographic or eligibility restrictions |
Registration density analysis for .icu domains by character length. Currently 418,201 domains are registered across all lengths.
Total Registered
418.2K
Peak Saturation
>99.9%
1-char names
DNSSEC Adoption
1.2%
Top Provider
Cloudflare
| Length | Registered | % Full | Density |
|---|---|---|---|
| 1 char | 34 | >99.9% | |
| 2 chars | 108 | 16.0% | |
| 3 chars | 10,888 | 62.0% | |
| 4 chars | 19,276 | 4.2% | |
| 5 chars | 76,091 | 0.64% | |
| 6 chars | 67,630 | 0.02% | |
| 7 chars | 53,784 | <0.01% | |
| 8 chars | 57,369 | <0.01% | |
| 9 chars | 35,509 | <0.01% | |
| 10 chars | 37,869 | <0.01% | |
| 11 chars | 33,306 | <0.01% | |
| 12 chars | 26,337 | <0.01% |
Updated daily from zone file analysis. Alpha density = registered / 26^length.
Compare across all TLDs →No restrictions. Open to individuals, businesses, and organizations worldwide.
The .icu TLD is available for registration through accredited domain registrars.
How does .icu compare to similar top-level domains? This comparison covers pricing, type, and availability to help choose the right domain extension.
View the full TLD Directory to browse all 1,900+ top-level domains with pricing, registration density analysis, and DNSSEC adoption rates.
DNSChkr maintains a comprehensive TLD directory covering all 1,900+ active top-level domains. The data on this page combines multiple authoritative sources to provide information not found in standard TLD listings.
Domain registration counts and density analysis are computed daily from TLD zone files, providing accurate registration statistics rather than estimates.
DNSSEC deployment percentages are measured by scanning actual DNS records across all registered domains in each TLD zone.
Registration, renewal, and transfer prices are checked hourly across multiple accredited registrars and compared automatically.
DNS provider distribution is calculated from nameserver records, showing which hosting providers serve the most domains in each TLD.
Use DNSChkr tools to inspect any .icu domain: run a full DNS health check, check DNS propagation, look up WHOIS records, or verify email authentication.
Disclaimer: The information on this page is sourced from IANA, ICANN, and respective registry operator publications, then structured and formatted with the assistance of AI. While accuracy is a priority, details such as pricing, registration requirements, and policies may change. Always verify with the official registry or an accredited registrar before making registration decisions.