Useful Information

.pro Domain Zone: Comprehensive Data for Professionals

The .pro domain zone, originally launched for certified professionals, has evolved into a versatile namespace with over 1.1M+ registered domains. Understanding its structural metrics—such as average domain length of 9.43 characters and the prevalence of the letter 'e'—is critical for domain investors, SEO specialists, and developers. This data-driven analysis reveals patterns in domain composition, character distribution, and naming trends, empowering you to make informed decisions in the pro space.

Domain Length Distribution in .pro

The most common domain length is 8 characters, with 165 323 domains (e.g., 0-0.pro). Average length is 9.43 chars, max 63.

Infographics for .pro

1,122,656
Total Domains
+4,755
New Today
−2,751
Dropped Today

Domain length distribution by number of characters

Character Composition: Letters, Digits, and Hyphens

Letters dominate at 71.66% (804 522 domains), while digits appear in 6.02% of all characters. Hyphens are present in 8.66% of domains.


Average domain name length

9.43 characters
Representative domain: 0-0.pro
Representative name length: 3

Top Symbols and Naming Patterns

The most frequent character is 'e' (922 941 occurrences), and most domains start with 's' (90 215 domains). The top word is 'pro' (22 430 domains).

Popular Domain Zones

.cn .dogs .be .online .run .uk .club .games .app .charity .community .travel .hospital .music .live .au .me .es .jp .garden

Character frequency in domain names

# Symbol Occurrences
1 e 922941
2 a 878248
3 i 731230
4 o 712235
5 r 634839
6 t 600961
7 s 544970
8 n 540517
9 l 458857
10 u 390901
11 c 375296
12 d 323220
13 m 322709
14 p 314701
15 y 259597
16 g 253369
17 b 233817
18 h 233087
19 k 193115
20 f 189510
21 v 188597
22 w 137915
23 x 132708
24 z 105153
25 j 91810
26 1 83105
27 q 73667
28 8 73446
29 2 72826
30 0 68132
31 7 62311
32 3 60145
33 5 56762
34 4 53889
35 6 53616
36 9 52654

Vowel vs. Consonant Balance in pro Domains

Vowels account for 36.79% of all characters (3 895 152), consonants 56.19% (5 948 818), aiding memorability and brandability.


Most common first character in domain names

# First char Domains count
1 - 0
2 0 3490
3 1 9401
4 2 5563
5 3 4528
6 4 3419
7 5 4015
8 6 3379
9 7 3863
10 8 3858
11 9 3615
12 a 64235
13 b 55283
14 c 67380
15 d 54117
16 e 32810
17 f 47526
18 g 43179
19 h 34179
20 i 30211
21 j 30570
22 k 32515
23 l 43522
24 m 74813
25 n 35856
26 o 23135
27 p 63542
28 q 16524
29 r 45902
30 s 90215
31 t 62748
32 u 15096
33 v 32781
34 w 29536
35 x 18835
36 y 12257
37 z 20758

Numeric and Mixed-Type Domains

Pure numeric domains are rare (0.84%), while alphanumeric mixes represent 18.83%. The top numeric token is '1' (21 225 domains).


Character distribution in domain names

Vowels (3895152 · 36.79%)
Consonants (5948818 · 56.19%)
Digits (636886 · 6.02%)
Hyphen (106436 · 1.01%)
Other (0 · 0%)

Hyphen Usage and Its Impact

Only 8.66% of domains contain hyphens (97 277), suggesting a preference for clean, hyphen-free names for professionalism.


Domain names with numbers and letters

Only numbers (9418 · 0.84%)
Only letters (804522 · 71.66%)
Numbers and letters (211439 · 18.83%)
Other (97277 · 8.66%)

Historical Context and Evolution of .pro

Originally restricted to licensed professionals, .pro now welcomes all registrants. Statistics reveal a mature zone with 1 122 656 domains and 10.6M+ total characters.


Most frequent word fragments inside domain names

# Word Domains count %
1 pro 22430 2.00
2 go 20052 1.79
3 my 12566 1.12
4 one 9979 0.89
5 car 8332 0.74
6 hub 7326 0.65
7 tech 6819 0.61
8 lab 6434 0.57
9 net 6354 0.57
10 app 6213 0.55
11 top 4627 0.41
12 game 4122 0.37
13 web 3805 0.34
14 get 3599 0.32
15 market 3522 0.31
16 dev 3429 0.31
17 play 3426 0.31
18 smart 3312 0.30
19 new 3206 0.29
20 link 3115 0.28

Trends & Insights 2026

Expect continued growth in .pro as professionals and businesses seek credible, industry-specific TLDs beyond legacy extensions.
Short, memorable domains (8-10 chars) will remain premium; the current peak at 8 chars signals strong demand for concise names.
Alphanumeric domains (18.83% of registrations) may rise with tech and startup branding, blending letters and numbers for uniqueness.
Hyphen-free domains (91.34%) will dominate as search engines and users favor clean, typo-resistant URLs.
The top word 'pro' underscores the zone's professional identity; similar keywords will drive future registrations.
Data-driven investing will rely on metrics like vowel density (36.79%) and first-symbol frequency ('s') to predict domain value.

Hyphen usage in domain names

With hyphen (97277 · 8.66%)
Without hyphen (1025379 · 91.34%)

Popular numeric tokens in domain names

# Token Domains count
1 1 21225
2 2 18209
3 4 17385
4 3 16367
5 8 15012
6 7 14809
7 5 14186
8 9 13698
9 6 13255
10 0 12070
11 88 6273
12 01 4767
13 02 2835
14 777 2733
15 77 2592
16 24 2354
17 11 2121
18 10 1804
19 99 1791
20 360 1428