Nine-Character Domain Availability

Name: Nine-Character Domain Registration Density
Creator: DNS Checker

There are exactly 122,941,842,996,096 possible 9-character domain names — one hundred twenty-two trillion nine hundred forty-one billion eight hundred forty-two million nine hundred ninety-six thousand ninety-six. More possible domains than the total number of emails sent worldwide in an entire year. The nine-character namespace is so large that it could absorb centuries of domain registrations without a dent.

Using letters only (a–z), there are 5,429,503,678,976 possible domains. Over five trillion possibilities — more than the number of web pages indexed by major search engines. At this length, scarcity is essentially nonexistent.

Allowing both letters and digits (a–z, 0–9) creates 101,559,956,668,416 combinations. More combinations than the total number of Google searches performed in an entire year. Finding a specific nine-character domain is like searching for one particular query among a year of global searches.

Here's how saturated each TLD is at this length.

Data updated daily — last snapshot: April 29, 2026

trillion valid combinations

all valid 9-character domain labels (a–z, 0–9, hyphens)

trillion alphabetic

26⁹ using a–z

trillion alphanumeric

36⁹ with digits 0–9

saturation

across 50 TLDs

.com registered

<0.01% of total

Which TLDs Are Most Saturated at 9 Characters?

How Full Is Each TLD at 9 Characters?

#	TLD	Registered	% Full (Alpha)	% Full (Alphanum)	Hyphenated	Numeric Only	DNSSEC %	Status
1	.com	12,228,923	<0.01%	<0.01%	1,069,540	19,748	4.2%	Largely Open
2	.net	1,085,639	<0.01%	<0.01%	98,179	575	5.2%	Largely Open
3	.xyz	880,802	<0.01%	<0.01%	—	159,984	1.7%	Largely Open
4	.org	872,121	<0.01%	<0.01%	67,463	72	5.4%	Largely Open
5	.shop	374,406	<0.01%	<0.01%	17,016	1,247	4.5%	Largely Open
6	.info	365,510	<0.01%	<0.01%	41,688	53	4.5%	Largely Open
7	.online	334,479	<0.01%	<0.01%	35,699	105	3.7%	Largely Open
8	.top	257,016	<0.01%	<0.01%	24,236	2,464	1.4%	Largely Open
9	.store	227,537	<0.01%	<0.01%	16,138	43	2.5%	Largely Open
10	.ch	204,504	<0.01%	<0.01%	40,805	6	52.4%	Largely Open
11	.site	179,410	<0.01%	<0.01%	16,249	64	2.3%	Largely Open
12	.app	138,255	<0.01%	<0.01%	6,144	22	8.3%	Largely Open
13	.vip	129,692	<0.01%	<0.01%	6,505	1,571	0.7%	Largely Open
14	.se	125,717	<0.01%	<0.01%	—	35	60.8%	Largely Open
15	.pro	119,657	<0.01%	<0.01%	9,193	18	3.3%	Largely Open
16	.biz	108,799	<0.01%	<0.01%	9,711	12	3.8%	Largely Open
17	.dev	71,088	<0.01%	<0.01%	3,047	8	14.7%	Largely Open
18	.sbs	66,000	<0.01%	<0.01%	12,644	217	2.7%	Largely Open
19	.tech	56,913	<0.01%	<0.01%	—	—	5.9%	Largely Open
20	.space	55,678	<0.01%	<0.01%	—	—	3.3%	Largely Open
21	.live	55,296	<0.01%	<0.01%	—	—	3.1%	Largely Open
22	.cloud	53,983	<0.01%	<0.01%	—	—	6.7%	Largely Open
23	.click	50,953	<0.01%	<0.01%	—	—	2.9%	Largely Open
24	.club	50,897	<0.01%	<0.01%	—	—	2.9%	Largely Open
25	.cfd	49,551	<0.01%	<0.01%	—	—	6.1%	Largely Open
26	.life	42,867	<0.01%	<0.01%	—	—	2.6%	Largely Open
27	.fun	42,159	<0.01%	<0.01%	—	—	3.4%	Largely Open
28	.icu	36,519	<0.01%	<0.01%	—	—	1.4%	Largely Open
29	.world	35,381	<0.01%	<0.01%	—	—	3.0%	Largely Open
30	.cyou	34,685	<0.01%	<0.01%	—	—	4.0%	Largely Open
31	.art	31,645	<0.01%	<0.01%	—	—	7.9%	Largely Open
32	.asia	30,033	<0.01%	<0.01%	—	—	4.0%	Largely Open
33	.blog	29,992	<0.01%	<0.01%	—	—	5.1%	Largely Open
34	.digital	25,443	<0.01%	<0.01%	—	—	3.5%	Largely Open
35	.lol	24,625	<0.01%	<0.01%	8,100	102	8.3%	Largely Open
36	.bond	24,280	<0.01%	<0.01%	6,641	11	1.3%	Largely Open
37	.work	23,510	<0.01%	<0.01%	—	—	4.1%	Largely Open
38	.link	21,971	<0.01%	<0.01%	—	—	15.7%	Largely Open
39	.website	21,959	<0.01%	<0.01%	—	—	3.1%	Largely Open
40	.mobi	20,043	<0.01%	<0.01%	—	—	1.8%	Largely Open
41	.studio	19,123	<0.01%	<0.01%	—	—	8.9%	Largely Open
42	.one	19,111	<0.01%	<0.01%	—	—	21.5%	Largely Open
43	.skin	19,106	<0.01%	<0.01%	—	—	0.5%	Largely Open
44	.nu	17,768	<0.01%	<0.01%	—	—	58.9%	Largely Open
45	.autos	15,543	<0.01%	<0.01%	—	—	1.3%	Largely Open
46	.run	13,876	<0.01%	<0.01%	—	—	1.7%	Largely Open
47	.buzz	13,676	<0.01%	<0.01%	—	—	7.7%	Largely Open
48	.agency	11,633	<0.01%	<0.01%	—	—	6.3%	Largely Open
49	.design	11,427	<0.01%	<0.01%	—	—	6.7%	Largely Open
50	.email	11,398	<0.01%	<0.01%	—	—	9.0%	Largely Open

What Are Nine-Character Domain Names Worth?

At 9 characters, the domain namespace becomes vast — 5,429,503,678,976 possible alphabetic combinations. Even the most popular TLDs have significant availability at this length. The challenge shifts from scarcity to finding memorable, meaningful names.

Longer domains are often full words or multi-word combinations. While they lack the premium cachet of short domains, they offer excellent opportunities for keyword-rich, descriptive domain names.

Explore Nine-Character Availability by TLD

How Are These Combination Counts Calculated?

Domain name labels (the part before the dot) follow strict character rules defined in RFC 5891 and RFC 1035. DNS Checker calculates three tiers of possible combinations for each domain length:

Alphabetic (a–z)

26⁹ = 5,429,503,678,976

Only the 26 lowercase letters. The simplest calculation — each position has 26 choices, so 9 positions gives 26⁹.

Alphanumeric (a–z, 0–9)

36⁹ = 101,559,956,668,416

Letters plus digits. Each position has 36 choices. Domain names are case-insensitive, so uppercase and lowercase are equivalent.

All Valid Labels

122,941,842,996,096 total

Includes hyphens, but with restrictions. The total is not simply 37⁹ because hyphens have placement rules.

Character Set	Characters	Formula	9-Char Combinations
Alphabetic	a–z (26)	26⁹	5,429,503,678,976
Alphanumeric	a–z, 0–9 (36)	36⁹	101,559,956,668,416
All Valid Labels	a–z, 0–9, hyphen (37)	With placement rules	122,941,842,996,096

Hyphen Placement Rules

No leading hyphen — the first character must be a letter or digit (36 choices, not 37)
No trailing hyphen — the last character must also be a letter or digit (36 choices)
No double-hyphen at positions 3–4 — labels like xn--example are reserved for internationalized domain names (IDN) under RFC 5891 §4.2.3.1. A hyphen in position 3 and position 4 simultaneously is not permitted in standard registrations.

These constraints mean the "all valid" count is less than a simple 36 × 37^7 × 36 calculation — the double-hyphen exclusion at positions 3–4 removes a subset of otherwise valid combinations. All three counts are mathematical constants that never change — only the number of registered domains (shown in the table above) changes daily.

Frequently Asked Questions

Data updated daily — last snapshot: April 29, 2026

Nine-Character Domain Availability

Which TLDs Are Most Saturated at 9 Characters?

How Full Is Each TLD at 9 Characters?

What Are Nine-Character Domain Names Worth?

Explore Nine-Character Availability by TLD

How Are These Combination Counts Calculated?

Frequently Asked Questions

How many possible 9-character domain names exist?

Are 9-character domains valuable?

Which TLDs still have 9-character domains available?

What does the DNSSEC percentage mean for 9-character domains?

How many 9-character domains are registered across all TLDs?

What is the difference between alphabetic and alphanumeric domain combinations?

Where can I find available 9-character domain names?