.aco

Domain counts for this TLD are not available yet.

Domains

–

no zone data

30-day change

–

Signed in root

✔ Yes

DS record present

Type

Brand

ASCII

Registrar figures are for April 2026. ICANN publishes monthly registry reports about three months in arrears, and they are the only source that attributes domains to registrars — zone files do not contain registrar information. Methodology.

Registry details

From the IANA Root Zone Database and RDAP bootstrap.

Registry operator: ACO Severin Ahlmann GmbH & Co. KG
Technical backend: unknown — this TLD runs vanity infrastructure that identifies no platform
Delegated: 27 Aug 2015
Nameservers: a.dns.nic.aco, m.dns.nic.aco, n.dns.nic.aco
RDAP: https://rdap.nic.aco
Zone data: CZDS status not yet established

Registrar share

individual · combined

Individual ICANN accreditations, matching the registry report line for line. 3 reported volume in this TLD.

380domains reported

Share of .aco by registrar
LEMARIT GmbH	369	97.11%
Reserved for non-billable transactions where Registry Operator acts as Registrar	10	2.63%
Reserved for ICANN's Registry SLA Monitoring System transactions reporting	1	0.26%

Domains by month, 2015–present

From ICANN's monthly registry reports — the registry's own count, summed across registrars. This is the long history: it reaches back to delegation, where the daily series below can only start when this site began collecting zone files.

Month	Domains	Change	Registrars	Net adds
Apr 2026	380	0	3	1
Mar 2026	380	▲ +2	3	2
Feb 2026	378	▲ +2	3	0
Jan 2026	376	▲ +1	3	0
Dec 2025	375	▼ -2	3	0
Nov 2025	377	▲ +2	3	0
Oct 2025	375	0	3	0
Sep 2025	375	▼ -1	3	1
Aug 2025	376	▲ +2	3	0
Jul 2025	374	▼ -2	3	1
Jun 2025	376	▲ +2	3	1
May 2025	374	▲ +2	3	0
Apr 2025	372	▼ -1	3	2
Mar 2025	373	▲ +4	3	1
Feb 2025	369	▼ -1	3	0
Jan 2025	370	▲ +1	3	0
Dec 2024	369	0	3	4
Nov 2024	369	▲ +4	3	0
Oct 2024	365	0	3	3
Sep 2024	365	▲ +3	3	0
Aug 2024	362	▼ -2	3	0
Jul 2024	364	▲ +2	3	0
Jun 2024	362	▼ -1	3	0
May 2024	363	▼ -1	3	0

Daily domain counts

No zone data for this TLD yet Daily counts require an approved CZDS zone request for this TLD. The monthly history above is unaffected — it comes from ICANN registry reports.

Registrars

Registrar	Domains	Share	Net adds
Reserved for ICANN's Registry SLA Monitoring System transactions reporting	1	0.3%	0
Reserved for non-billable transactions where Registry Operator acts as Registrar	10	2.6%	0
LEMARIT GmbH	369	97.1%	▲ +1

Registry activity

Query volumes and EPP operations reported monthly by the registry. The only public signal of how much a TLD is actually resolved rather than merely registered.

Month	Operational registrars	DNS queries (UDP)	Creates	Deletes	Renews
Dec 2017	1	22.01M	225	2	5
Nov 2017	1	18.5M	154	2	4
Oct 2017	1	17.22M	349	0	0
Sep 2017	1	18.54M	329	6	250
Aug 2017	1	22.95M	96,042	2	327
Jul 2017	1	20.45M	8,687	273	1,202
Jun 2017	1	19.92M	259	5	92
May 2017	1	20.59M	250	324	3,063
Apr 2017	1	16.73M	6,143	1,069	11,364
Mar 2017	1	13.32M	802	447	4,893
Feb 2017	1	11.79M	319	24	3
Jan 2017	1	11.52M	87	366	0
Dec 2016	1	15.05M	75	370	1
Nov 2016	1	12.16M	112	362	2
Oct 2016	1	12.13M	93	365	309
Sep 2016	1	11.13M	115	233,028	446,320
Aug 2016	1	11.67M	76	801,791	1,719,373
Jul 2016	1	12.79M	148	402,895	1,655,257
Jun 2016	1	8.81M	127	62,541	770,299
May 2016	1	8.73M	679,587	672	4,481
Apr 2016	1	8.12M	81	829	4,615
Mar 2016	1	9.12M	383	357	4,415
Feb 2016	1	7.87M	77	290	1,795
Jan 2016	1	8.79M	3	310	1,113
Dec 2015	1	9.11M	24	171	527
Nov 2015	1	8.7M	296	6	28
Oct 2015	0	6.91M	6	8	8
Sep 2015	0	5.46M	0	11	10
Aug 2015	0	771.7k	257	13	6

Data currency. Domain counts on this page are from zone files dated 13 August 2026 and refresh daily. Registrar figures are from ICANN's monthly registry reports for April 2026, which ICANN publishes about three months in arrears; zone files contain no registrar information, so no fresher source exists. Full detail on methodology and live pipeline status.