.cologne

3,875 domains as of 13 Aug 2026

Domains

3,875

13 Aug 2026

30-day change

–

Signed in root

✔ Yes

DS record present

Type

Generic

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: dotKoeln GmbH
Technical backend: RyCE via ns suffix
Delegated: 19 Mar 2014
Nameservers: dns.ryce-rsp.com, ns1.dns.business, ns1.ryce-rsp.com
RDAP: https://rdap.ryce-rsp.com/rdap
Zone data: CZDS access approved — counted daily

Registrar share

individual · combined

Individual ICANN accreditations, matching the registry report line for line. 39 reported volume in this TLD.

4kdomains reported

Share of .cologne by registrar
RegistryGate GmbH	971	24.2%
IONOS SE	736	18.34%
Cronon GmbH	376	9.37%
Mesh Digital Limited	373	9.29%
InterNetX GmbH	274	6.83%
Key-Systems, LLC	248	6.18%
united-domains GmbH	222	5.53%
Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA	93	2.32%
MarkMonitor Inc.	72	1.79%
Dynadot Inc	71	1.77%
Other29 more registrars	577	14.38%

Domains by month, 2014–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	Deletes
Apr 2026	4,013	▼ -9	39	11	23
Mar 2026	4,022	▼ -20	39	16	34
Feb 2026	4,042	▼ -11	39	13	27
Jan 2026	4,053	▼ -7	39	18	23
Dec 2025	4,060	▼ -22	39	5	30
Nov 2025	4,082	▼ -32	39	22	54
Oct 2025	4,114	▼ -65	39	15	74
Sep 2025	4,179	▼ -15	40	12	29
Aug 2025	4,194	▼ -17	40	14	34
Jul 2025	4,211	▼ -18	40	12	32
Jun 2025	4,229	▼ -21	40	11	30
May 2025	4,250	▼ -39	40	15	49
Apr 2025	4,289	▲ +33	40	65	38
Mar 2025	4,256	▼ -96	40	8	99
Feb 2025	4,352	▼ -35	40	12	43
Jan 2025	4,387	▼ -4	40	20	31
Dec 2024	4,391	▼ -47	40	15	50
Nov 2024	4,438	▼ -146	40	10	166
Oct 2024	4,584	▼ -59	39	27	81
Sep 2024	4,643	▼ -14	39	14	35
Aug 2024	4,657	▼ -16	39	13	29
Jul 2024	4,673	▼ -17	40	21	40
Jun 2024	4,690	▼ -18	40	17	35
May 2024	4,708	▼ -31	40	17	44

Domains over time

Counted from daily zone files. Names with at least one NS record or a DS record.

Daily adds and drops

Day-over-day difference of the zone's name list.

Added
Dropped

Registrars

Registrar	Domains	Share	Net adds	Transfers in	Deletes
Safenames Ltd	1	0%	0	0	0
Nameshield SAS	2	0%	0	0	0
SafeBrands SAS	2	0%	0	0	0
Instra Corporation Pty Ltd.	3	0.1%	0	0	0
CSL Computer Service Langenbach GmbH d/b/a joker.com	4	0.1%	0	0	0
Lexsynergy Limited	4	0.1%	0	0	0
Hosting Concepts B.V. d/b/a Registrar.eu	4	0.1%	▲ +1	0	0
Marcaria International LLC	5	0.1%	0	0	0
Realtime Register B.V.	7	0.2%	0	0	0
101domain GRS Limited	7	0.2%	0	0	0
Gandi SAS	8	0.2%	0	0	0
BB-Online UK Limited	8	0.2%	0	0	0
NETIM SAS	10	0.2%	0	0	0
Global Village GmbH	11	0.3%	0	0	0
Ledl.net GmbH & Co KG	13	0.3%	0	0	0
Variomedia AG	16	0.4%	0	0	2
Secura GmbH	19	0.5%	0	0	0
Dreamscape Networks International Pte Ltd	19	0.5%	0	0	0
COREhub, S.R.L.	20	0.5%	0	0	0
EuroDNS S.A.	28	0.7%	0	0	0
http.net Internet GmbH	30	0.7%	▲ +1	0	0
CPS-Datensysteme GmbH	32	0.8%	0	0	0
OVH sas	34	0.8%	0	0	0
CSC Corporate Domains, Inc.	37	0.9%	0	1	0
1API GmbH	37	0.9%	0	0	1
Nom-iq Ltd. dba COM LAUDE	50	1.2%	0	0	0
Vautron Rechenzentrum AG	52	1.3%	0	0	0
EPAG Domainservices GmbH	57	1.4%	0	0	0
INWX GmbH	57	1.4%	▲ +3	0	1
Dynadot Inc	71	1.8%	0	0	2
MarkMonitor Inc.	72	1.8%	0	0	0
Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA	93	2.3%	▲ +1	1	1
united-domains GmbH	222	5.5%	0	0	4
Key-Systems, LLC	248	6.2%	▲ +2	0	2
InterNetX GmbH	274	6.8%	▲ +3	0	0
Mesh Digital Limited	373	9.3%	0	0	0
Cronon GmbH	376	9.4%	0	0	1
IONOS SE	736	18.3%	0	0	7
RegistryGate GmbH	971	24.2%	0	0	2

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	42	35.59M	53	40	53
Nov 2017	42	32.55M	63	73	50
Oct 2017	42	30.01M	78	134	74
Sep 2017	42	29.66M	59	225	131
Aug 2017	42	36.34M	41	46	476
Jul 2017	42	32.93M	48	18	75
Jun 2017	42	32.73M	70	23	54
May 2017	42	32.55M	49	24	96
Apr 2017	42	29.53M	60	37	50
Mar 2017	42	27.37M	55	37	53
Feb 2017	42	26.03M	58	31	44
Jan 2017	42	22.84M	71	45	57
Dec 2016	42	28.43M	59	47	71
Nov 2016	42	21.86M	65	49	72
Oct 2016	42	22.06M	75	166	74
Sep 2016	42	21.46M	71	219	112
Aug 2016	42	21.4M	87	77	544
Jul 2016	42	20.94M	72	38	92
Jun 2016	42	19.13M	61	18	50
May 2016	41	19.43M	71	38	83
Apr 2016	41	37.44M	75	28	44
Mar 2016	41	19.34M	91	27	58
Feb 2016	41	18.33M	92	28	32
Jan 2016	41	15.53M	126	180	52
Dec 2015	39	14.8M	86	180	45
Nov 2015	39	15M	74	159	44
Oct 2015	39	14.54M	99	453	95
Sep 2015	39	13.03M	211	277	263
Aug 2015	39	13.04M	127	24	567
Jul 2015	39	13.85M	104	50	84
Jun 2015	39	15.25M	117	15	29
May 2015	38	14.91M	114	4	26
Apr 2015	38	15.85M	144	34	4
Mar 2015	38	16.2M	127	9	2
Feb 2015	38	15.39M	162	6	0
Jan 2015	38	16.29M	185	5	0
Dec 2014	38	16.52M	160	8	0
Nov 2014	38	15.28M	217	11	0
Oct 2014	38	16.46M	333	24	0
Sep 2014	38	13.73M	175,960	30	0
Aug 2014	37	8.87M	324	2	0
Jul 2014	34	6.24M	112	0	0
Jun 2014	29	10.56M	158	0	0
May 2014	2	4.23M	0	0	0
Apr 2014	2	4.92M	0	0	0
Mar 2014	2	3.52M	0	0	0

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.