Five-Character Domain Availability

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

There are exactly 65,598,336 possible 5-character domain names — sixty-five million five hundred ninety-eight thousand three hundred thirty-six. About as many possible domains as there are books that have ever been published in all of human history. A vast-sounding number, but one that popular TLDs are steadily filling.

Using letters only (a–z), there are 11,881,376 possible domains. Roughly the number of distinct articles on English Wikipedia. A large collection, but entirely countable — and heavily claimed in top TLDs.

Allowing both letters and digits (a–z, 0–9) creates 60,466,176 combinations. If each combination were a page, you could fill a library with over 120,000 five-hundred-page books. This is the last length where popular TLDs face real saturation pressure.

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

Data updated daily — last snapshot: April 29, 2026

million valid combinations

all valid 5-character domain labels (a–z, 0–9, hyphens)

million alphabetic

26⁵ using a–z

million alphanumeric

36⁵ with digits 0–9

saturation

across 50 TLDs

.com registered

37.1% of total

Which TLDs Are Most Saturated at 5 Characters?

How Full Is Each TLD at 5 Characters?

#	TLD	Registered	% Full (Alpha)	% Full (Alphanum)	Hyphenated	Numeric Only	DNSSEC %	Status
1	.com	4,413,547	37.1%	7.3%	—	95,892	2.4%	Widely Available
2	.top	1,949,312	16.4%	3.2%	—	36,414	0.6%	Widely Available
3	.net	593,464	5.0%	0.98%	—	27,225	4.6%	Largely Open
4	.org	539,423	4.5%	0.89%	—	25,669	5.7%	Largely Open
5	.xyz	375,572	3.2%	0.62%	—	26,102	2.3%	Largely Open
6	.vip	331,278	2.8%	0.55%	—	80,589	1.4%	Largely Open
7	.info	322,518	2.7%	0.53%	32,396	1,357	3.2%	Largely Open
8	.shop	277,407	2.3%	0.46%	—	4,735	22.6%	Largely Open
9	.app	152,521	1.3%	0.25%	1,476	13,072	5.7%	Largely Open
10	.bond	125,622	1.1%	0.21%	—	604	3.0%	Largely Open
11	.online	124,398	1.1%	0.21%	—	626	4.1%	Largely Open
12	.sbs	105,938	0.89%	0.18%	—	12,579	3.1%	Largely Open
13	.biz	94,023	0.79%	0.16%	—	5,126	3.4%	Largely Open
14	.ch	93,331	0.79%	0.15%	—	183	52.0%	Largely Open
15	.pro	90,615	0.76%	0.15%	—	6,997	8.5%	Largely Open
16	.site	89,709	0.76%	0.15%	—	555	2.5%	Largely Open
17	.store	87,244	0.73%	0.14%	—	289	3.2%	Largely Open
18	.lol	80,409	0.68%	0.13%	—	436	2.1%	Largely Open
19	.icu	78,439	0.66%	0.13%	—	—	1.0%	Largely Open
20	.cyou	71,413	0.60%	0.12%	—	—	6.1%	Largely Open
21	.dev	67,348	0.57%	0.11%	822	152	16.3%	Largely Open
22	.mobi	67,026	0.56%	0.11%	—	—	7.9%	Largely Open
23	.link	64,810	0.55%	0.11%	—	—	2.9%	Largely Open
24	.se	64,532	0.54%	0.11%	—	350	58.7%	Largely Open
25	.asia	55,674	0.47%	0.09%	—	—	4.0%	Largely Open
26	.club	53,011	0.45%	0.09%	—	—	2.8%	Largely Open
27	.tech	51,923	0.44%	0.09%	—	—	6.0%	Largely Open
28	.one	49,512	0.42%	0.08%	—	—	8.7%	Largely Open
29	.blog	47,499	0.40%	0.08%	—	—	2.3%	Largely Open
30	.cloud	45,561	0.38%	0.08%	—	—	8.5%	Largely Open
31	.loan	42,955	0.36%	0.07%	—	—	0.5%	Largely Open
32	.click	42,188	0.36%	0.07%	—	—	2.0%	Largely Open
33	.qpon	38,144	0.32%	0.06%	—	—	0.0%	Largely Open
34	.live	36,917	0.31%	0.06%	—	—	3.7%	Largely Open
35	.fun	36,830	0.31%	0.06%	—	—	3.1%	Largely Open
36	.space	33,796	0.28%	0.06%	—	—	4.5%	Largely Open
37	.life	33,730	0.28%	0.06%	—	—	2.4%	Largely Open
38	.cfd	30,260	0.25%	0.05%	—	—	7.7%	Largely Open
39	.work	30,096	0.25%	0.05%	—	—	2.4%	Largely Open
40	.bid	25,825	0.22%	0.04%	—	—	0.2%	Largely Open
41	.town	25,324	0.21%	0.04%	—	—	0.6%	Largely Open
42	.world	22,982	0.19%	0.04%	—	—	4.1%	Largely Open
43	.win	21,901	0.18%	0.04%	—	—	3.8%	Largely Open
44	.art	19,761	0.17%	0.03%	—	—	7.6%	Largely Open
45	.studio	19,589	0.16%	0.03%	—	—	8.8%	Largely Open
46	.bet	19,462	0.16%	0.03%	—	—	1.6%	Largely Open
47	.buzz	18,691	0.16%	0.03%	—	—	4.0%	Largely Open
48	.digital	16,458	0.14%	0.03%	—	—	5.7%	Largely Open
49	.locker	15,476	0.13%	0.03%	—	—	0.1%	Largely Open
50	.autos	15,392	0.13%	0.03%	—	—	5.7%	Largely Open

What Are Five-Character Domain Names Worth?

Five-character domains sit in a sweet spot between scarcity and availability. With 11,881,376 possible alphabetic combinations, the namespace is large enough that opportunities exist in many TLDs, yet small enough that popular extensions are heavily saturated.

At this length, many real English words, brand names, and dictionary terms are possible. The mix of registered domains typically includes common words, abbreviations, and brandable names.

Explore Five-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)

26⁵ = 11,881,376

Only the 26 lowercase letters. The simplest calculation — each position has 26 choices, so 5 positions gives 26⁵.

Alphanumeric (a–z, 0–9)

36⁵ = 60,466,176

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

All Valid Labels

65,598,336 total

Includes hyphens, but with restrictions. The total is not simply 37⁵ because hyphens have placement rules.

Character Set	Characters	Formula	5-Char Combinations
Alphabetic	a–z (26)	26⁵	11,881,376
Alphanumeric	a–z, 0–9 (36)	36⁵	60,466,176
All Valid Labels	a–z, 0–9, hyphen (37)	With placement rules	65,598,336

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 × 37^3 × 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

Five-Character Domain Availability

Which TLDs Are Most Saturated at 5 Characters?

How Full Is Each TLD at 5 Characters?

What Are Five-Character Domain Names Worth?

Explore Five-Character Availability by TLD

How Are These Combination Counts Calculated?

Frequently Asked Questions

How many possible 5-character domain names exist?

Are 5-character domains valuable?

Which TLDs still have 5-character domains available?

What does the DNSSEC percentage mean for 5-character domains?

How many 5-character domains are registered across all TLDs?

What is the difference between alphabetic and alphanumeric domain combinations?

Where can I find available 5-character domain names?