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 164 907 domains (e.g., 0000001.pro). Average length is 9.43 chars, max 63.

Infographics for .pro

1,119,801
Total Domains
+4,513
New Today
−2,866
Dropped Today

Domain length distribution by number of characters

Character Composition: Letters, Digits, and Hyphens

Letters dominate at 71.67% (802 560 domains), while digits appear in 6.00% of all characters. Hyphens are present in 8.69% of domains.


Average domain name length

9.43 characters
Representative domain: 0000001.pro
Representative name length: 7

Top Symbols and Naming Patterns

The most frequent character is 'e' (921 150 occurrences), and most domains start with 's' (89 955 domains). The top word is 'pro' (22 415 domains).

Popular Domain Zones

.fun .shop .app .agency .xyz .legal .io .church .email .pet .family .eu .se .energy .ro .ca .guide .center .law .live

Character frequency in domain names

# Symbol Occurrences
1 e 921150
2 a 875824
3 i 729954
4 o 709933
5 r 633250
6 t 599195
7 s 543883
8 n 539308
9 l 457567
10 u 390062
11 c 374850
12 d 322541
13 m 322199
14 p 313951
15 y 259430
16 g 252849
17 b 233350
18 h 232991
19 k 192672
20 f 189480
21 v 188093
22 w 137689
23 x 132481
24 z 104994
25 j 91559
26 1 83029
27 q 73623
28 2 72681
29 8 72587
30 0 68279
31 7 61608
32 3 59851
33 5 56601
34 4 53672
35 6 53533
36 9 52372

Vowel vs. Consonant Balance in pro Domains

Vowels account for 36.79% of all characters (3 886 353), consonants 56.20% (5 936 525), aiding memorability and brandability.


Most common first character in domain names

# First char Domains count
1 - 0
2 0 3495
3 1 9451
4 2 5636
5 3 4547
6 4 3452
7 5 4041
8 6 3390
9 7 3865
10 8 3856
11 9 3603
12 a 64033
13 b 55120
14 c 67199
15 d 53896
16 e 32681
17 f 47475
18 g 43077
19 h 34113
20 i 30159
21 j 30445
22 k 32350
23 l 43391
24 m 74637
25 n 35754
26 o 23045
27 p 63286
28 q 16514
29 r 45776
30 s 89955
31 t 62634
32 u 15042
33 v 32665
34 w 29464
35 x 18838
36 y 12224
37 z 20692

Numeric and Mixed-Type Domains

Pure numeric domains are rare (0.84%), while alphanumeric mixes represent 18.80%. The top numeric token is '1' (21 277 domains).


Character distribution in domain names

Vowels (3886353 · 36.79%)
Consonants (5936525 · 56.2%)
Digits (634213 · 6%)
Hyphen (106426 · 1.01%)
Other (0 · 0%)

Hyphen Usage and Its Impact

Only 8.69% of domains contain hyphens (97 276), suggesting a preference for clean, hyphen-free names for professionalism.


Domain names with numbers and letters

Only numbers (9444 · 0.84%)
Only letters (802560 · 71.67%)
Numbers and letters (210521 · 18.8%)
Other (97276 · 8.69%)

Historical Context and Evolution of .pro

Originally restricted to licensed professionals, .pro now welcomes all registrants. Statistics reveal a mature zone with 1 119 801 domains and 10.6M+ total characters.


Most frequent word fragments inside domain names

# Word Domains count %
1 pro 22415 2.00
2 go 20040 1.79
3 my 12588 1.12
4 one 9959 0.89
5 car 8312 0.74
6 hub 7286 0.65
7 tech 6819 0.61
8 lab 6418 0.57
9 net 6336 0.57
10 app 6219 0.56
11 top 4620 0.41
12 game 4121 0.37
13 web 3809 0.34
14 get 3590 0.32
15 market 3522 0.31
16 dev 3427 0.31
17 play 3407 0.30
18 smart 3311 0.30
19 new 3199 0.29
20 link 3113 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 (18.80% of registrations) may rise with tech and startup branding, blending letters and numbers for uniqueness.
Hyphen-free domains (91.31%) 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 (97276 · 8.69%)
Without hyphen (1022525 · 91.31%)

Popular numeric tokens in domain names

# Token Domains count
1 1 21277
2 2 18239
3 4 17270
4 3 16420
5 8 15045
6 7 14845
7 5 14257
8 9 13729
9 6 13303
10 0 12118
11 88 6088
12 01 4810
13 02 2844
14 777 2628
15 77 2465
16 24 2356
17 11 2112
18 10 1794
19 99 1749
20 360 1427