Useful Information

.icu Domain Zone: Comprehensive Data & Market Trends

The .icu domain zone, launched in 2015, has grown to over 471.4K+ registered domains, making it a notable player in the new gTLD landscape. For domain investors, SEO specialists, and developers, understanding the structural composition of a zone is critical for strategic decisions. Statistics reveal patterns in domain length, character usage, and keyword prevalence, offering actionable insights for acquisition, branding, and optimization. This analysis leverages current data to highlight opportunities and trends within .icu.

Domain Length Distribution: Why 5 Characters Dominate

The most common domain length in .icu is 5 characters, with 62 490 domains. The average length is 0.00 chars, and the maximum is 63. Short domains are prized for memorability and SEO, making this a key metric for investors.

Infographics for .icu

471,429
Total Domains
+1,382
New Today
−656
Dropped Today

Domain length distribution by number of characters

Character Composition: Letters, Digits, and Hyphens

Letters dominate at 48.96% (228 787 domains), while digits appear in 14.64% of all characters. Hyphens are present in 11.92% of domains (55 651). The most frequent first character is 's' (29 014 domains), and the top overall symbol is 'a' (271 224 occurrences).


Average domain name length

9.07 characters
Representative domain: 0-0.icu
Representative name length: 3

Top Keywords and Numeric Tokens: Branding Opportunities

The most common word in .icu domains is 'go', appearing in 6 130 domains (1.31% share). The top numeric token is '1' (14 473 domains). These patterns reveal popular niches and potential for targeted acquisitions.

Popular Domain Zones

.games .org .sport .family .earth .house .press .tools .style .bio .inc .net .co .engineering .studio .dev .fashion .es .network .tennis

Character frequency in domain names

# Symbol Occurrences
1 a 271224
2 i 250496
3 e 250265
4 n 210702
5 s 204285
6 o 193213
7 t 170028
8 r 168006
9 l 146173
10 u 145233
11 d 133328
12 g 127659
13 c 126214
14 m 115418
15 h 114095
16 b 107928
17 k 103643
18 p 100758
19 y 100642
20 f 89099
21 1 86881
22 w 79461
23 x 74935
24 v 74699
25 2 74409
26 j 68428
27 0 62588
28 8 62256
29 6 61662
30 z 60011
31 3 57718
32 7 55944
33 5 54726
34 9 52560
35 4 50580
36 q 44423

Vowel vs. Consonant Balance: Readability and Brand Recall

Vowels account for 28.76% of all characters (1 219 834), while consonants make up 55.01% (2 333 123). A balanced ratio enhances pronounceability, a factor in user trust and click-through rates.


Most common first character in domain names

# First char Domains count
1 - 0
2 0 2573
3 1 9754
4 2 4281
5 3 3831
6 4 3717
7 5 4012
8 6 9595
9 7 7213
10 8 4593
11 9 5070
12 a 21867
13 b 25404
14 c 21862
15 d 22100
16 e 12131
17 f 15493
18 g 18748
19 h 14894
20 i 10689
21 j 12621
22 k 18201
23 l 17402
24 m 20449
25 n 12667
26 o 9213
27 p 19749
28 q 8369
29 r 13360
30 s 29014
31 t 19482
32 u 7728
33 v 9712
34 w 14219
35 x 12946
36 y 16676
37 z 9999

Pure Digit vs. Pure Letter Domains: Investment Potential

Pure letter domains represent 48.96% of the zone (228 787), while pure digit domains are just 2.58% (12 046). Mixed alphanumeric domains (36.58%) offer flexibility for tech and startup brands.


Character distribution in domain names

Vowels (1219834 · 28.76%)
Consonants (2333123 · 55.01%)
Digits (621082 · 14.64%)
Hyphen (67280 · 1.59%)
Other (0 · 0%)

Hyphen Usage: Impact on SEO and User Experience

Only 11.92% of .icu domains contain hyphens (55 651). Hyphens can improve readability for multi-word domains but may reduce trust. The low percentage suggests a preference for clean, hyphen-free names.


Domain names with numbers and letters

Only numbers (12046 · 2.58%)
Only letters (228787 · 48.96%)
Numbers and letters (170925 · 36.58%)
Other (55532 · 11.88%)

Total Character Pool: Scale and Diversity

The .icu zone contains 4.2M+ total characters across all domains. With 67 280 hyphens (1.59%) and zero other symbols, the zone is highly standardized, simplifying parsing and analysis for developers.


Most frequent word fragments inside domain names

# Word Domains count %
1 go 6130 1.31
2 mail 3897 0.83
3 pro 3508 0.75
4 my 2681 0.57
5 game 2436 0.52
6 one 2346 0.50
7 app 2244 0.48
8 car 2034 0.44
9 net 1467 0.31
10 online 1465 0.31
11 hub 1367 0.29
12 club 1307 0.28
13 lab 1304 0.28
14 play 1246 0.27
15 new 1176 0.25
16 web 1153 0.25
17 top 1129 0.24
18 link 1021 0.22
19 pay 971 0.21
20 fit 945 0.20

Trends & Insights 2026

Short domains (5 chars) will remain premium assets; investors should target 5-character letter-only names for maximum resale value.
The dominance of 'go' as a keyword signals strong demand in action-oriented niches (e.g., gaming, apps). Expect growth in verb-based domains.
With 36.58% of domains mixing digits and letters, alphanumeric combinations will gain traction for tech startups and crypto projects.
Hyphen-free domains (88.08%) will continue to outperform in SEO; avoid hyphens for new registrations to align with user preference.
The high vowel ratio (28.76%) suggests a trend toward pronounceable domains; prioritize names with balanced vowel-consonant structure for branding.
As 471.4K+ domains grow, data-driven tools will be essential for spotting undervalued assets—leverage metrics like top first symbol 's' and average length 0.00.

Hyphen usage in domain names

With hyphen (55651 · 11.92%)
Without hyphen (411375 · 88.08%)

Popular numeric tokens in domain names

# Token Domains count
1 1 14473
2 2 13822
3 3 12837
4 8 12462
5 4 12460
6 7 12435
7 6 12245
8 5 11996
9 9 11707
10 0 8837
11 11 2803
12 88 2080
13 10 1745
14 25 1705
15 01 1648
16 2026 1628
17 12 1626
18 24 1496
19 13 1480
20 15 1436