.icu gTLD
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
.icu Domain Overview
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 476,265 domains registered under this extension. Registration prices start from USD 2.49 - 14.29. DNSSEC adoption stands at 1.7%.
Registration Info
Price range based on 3 registrars. Actual prices may vary.
Security Features
- DNSSEC
- CAA Record Support
Where to Register a .icu Domain — Price Comparison
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 | $16.27 | $16.27 |
| porkbun | $2.56 | $15.96 | $15.96 |
| 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.
What Is the History of .icu?
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.
Did you know?
The .icu TLD serves a specific purpose in the domain ecosystem, providing users with clear context about the websites using this extension.
What Is .icu Used For?
The .icu TLD is commonly used for the following purposes:
Personal branding
Short URLs
Tech startups
Marketing campaigns
Domain hacks
Web hosting bundles
Popular Websites
How Many .icu Domains Are Registered?
Total Registrations
476,265
DNSSEC Adoption
1.7%
Alternative TLDs
If .icu doesn't meet your needs, consider these alternatives:
How Does .icu Compare?
| Metric | Value |
|---|---|
| Extension | .icu |
| Type | Generic TLD (gTLD) |
| Total Registrations | 476,265 |
| DNSSEC Adoption | 1.7% |
| Registration Price | USD 2.49 - 14.29 |
| Renewal Price | USD 15.19 - 16.27 |
| Registry Operator | Shortdot SA |
| Introduced | 2015-05-02 |
| Restrictions | Open for public registration with no geographic or eligibility restrictions |
How Available Are .icu Domain Names?
Registration density analysis for .icu domains by character length. Currently 430,360 domains are registered across all lengths.
Total Registered
430.4K
Peak Saturation
>99.9%
1-char names
DNSSEC Adoption
1.3%
Top Provider
Cloudflare
| Length | Registered | % Full | Density |
|---|---|---|---|
| 1 char | 34 | >99.9% | |
| 2 chars | 109 | 16.1% | |
| 3 chars | 10,945 | 62.3% | |
| 4 chars | 19,416 | 4.3% | |
| 5 chars | 78,439 | 0.66% | |
| 6 chars | 69,346 | 0.02% | |
| 7 chars | 55,776 | <0.01% | |
| 8 chars | 59,959 | <0.01% | |
| 9 chars | 36,519 | <0.01% | |
| 10 chars | 38,742 | <0.01% | |
| 11 chars | 34,141 | <0.01% | |
| 12 chars | 26,934 | <0.01% |
Top DNS Providers
Updated daily from zone file analysis. Alpha density = registered / 26^length.
Compare across all TLDs →How Do I Register a .icu Domain?
Eligibility
No restrictions. Open to individuals, businesses, and organizations worldwide.
Open Registration
The .icu TLD is available for registration through accredited domain registrars.
Registration Process
- Choose an accredited domain registrar that offers .icu domains
- Check domain availability using the registrar's search tool
- Complete the registration process and provide required information
- Pay the registration fee (typically USD 2.49 - 14.29)
- Manage your domain settings through your registrar's control panel
.icu vs Related Domain Extensions
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.
Frequently Asked Questions
How Is This .icu Data Compiled?
DNS Checker 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.
Zone File Analysis
Domain registration counts and density analysis are computed daily from TLD zone files, providing accurate registration statistics rather than estimates.
DNSSEC Adoption Tracking
DNSSEC deployment percentages are measured by scanning actual DNS records across all registered domains in each TLD zone.
Registrar Price Monitoring
Registration, renewal, and transfer prices are checked hourly across multiple accredited registrars and compared automatically.
Provider Market Share
DNS provider distribution is calculated from nameserver records, showing which hosting providers serve the most domains in each TLD.
Use DNS Checker 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.