.jcb domain statistics
.jcb has 19 registered domains as of Oct 6, 2026, ranking #730 by size. Since its first check on Mar 7, 2026 it has grown by 11.8% (+2 domains). At its latest check it changed by 0 domains over 56 days, about +0.0% a week.
About the .jcb extension
.jcb has been in the internet's root zone since Jan 23, 2015, about 11.7 years, and is operated by JCB Co., Ltd.. Its ICANN registry agreement was signed on Nov 20, 2014, 64 days before launch. .jcb is a brand TLD: under Specification 13 of its ICANN agreement, only JCB Co., Ltd. and its affiliates can register names in it. That is why its domain count stays small and mostly reflects the company's own sites.
Registry details from ICANN's gTLD list.
How .jcb compares
By size, .jcb sits ahead of 32% of tracked TLDs. Next to its 10 nearest-sized neighbours, .jcb out-grew 7; the fastest of that group was .fairwinds at +28.6%.
Biggest moves
Of 4 changes between checks, 2 were gains, 0 were losses and 2 showed no change. The biggest gain was +1 domains (+5.9%) between Mar 10, 2026 and Jun 2, 2026.
.jcb growth trend
Its 19 names are 0.00% of the 89M domains across every tracked extension. Over the 213 days from Mar 7 to Oct 6 it averaged +0.37% a week, or 0 domains a day. Its strongest month on record was June 2026 (+1); its weakest was October 2026 (0). If the latest rate held for 30 days, .jcb would reach about 19 domains (a straight-line projection, not a forecast).
.jcb domains by month
| Month | Domains | Change |
|---|---|---|
| October 2026 | 19 | 0 |
| August 2026 | 19 | +1 |
| June 2026 | 18 | +1 |
| March 2026 | 17 | – |
Every check
| Date | Domains | Change | Growth | Window | Severity |
|---|---|---|---|---|---|
| Oct 6, 2026 | 19 | 0 | +0.0% | 56 days | |
| Aug 11, 2026 | 19 | +1 | +5.6% | 70 days | |
| Jun 2, 2026 | 18 | +1 | +5.9% | 84 days | |
| Mar 10, 2026 | 17 | 0 | +0.0% | 3 days | |
| Mar 7, 2026 | 17 | – | – | first check |
Questions about .jcb
How many .jcb domains are there?
The .jcb zone listed 19 domains when it was last checked on Oct 6, 2026.
Can anyone register a .jcb domain?
No. .jcb is a brand TLD under Specification 13 of its ICANN registry agreement, so only JCB Co., Ltd. and its affiliates can register .jcb names.
Who runs the .jcb domain extension?
.jcb is run by JCB Co., Ltd..
When was .jcb created?
Jan 23, 2015, when it entered the root zone.
Is .jcb growing?
.jcb went from 17 domains on Mar 7, 2026 to 19 on Oct 6, 2026, a change of +11.8%. Its latest rate is about +0.0% a week.
How big is the .jcb domain extension compared to others?
By registered domains, .jcb comes in at #730. Its nearest neighbours are .hotmail, .kpmg, .praxi.