.koeln

16,921 domains as of 14 Aug 2026

Domains

16,921

14 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: 5 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. 38 reported volume in this TLD.

17.6kdomains reported

Share of .koeln by registrar
RegistryGate GmbH	4,401	24.95%
IONOS SE	3,644	20.66%
Cronon GmbH	2,442	13.85%
united-domains GmbH	1,505	8.53%
Mesh Digital Limited	1,227	6.96%
InterNetX GmbH	1,129	6.4%
Key-Systems, LLC	858	4.86%
Dynadot Inc	403	2.28%
Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA	318	1.8%
INWX GmbH	247	1.4%
Other28 more registrars	1,464	8.3%

Monthly range 1y 3y 5y 10y All

Domains by month, Apr 2025 – Apr 2026

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.

Drag to zoom

Month	Domains	Change	Registrars	Net adds	Deletes
Apr 2026	17,638	▲ +23	38	88	75
Mar 2026	17,615	▼ -15	38	66	90
Feb 2026	17,630	▼ -40	38	58	102
Jan 2026	17,670	▼ -22	38	75	103
Dec 2025	17,692	▼ -41	38	66	130
Nov 2025	17,733	▼ -483	39	59	514
Oct 2025	18,216	▼ -96	39	63	154
Sep 2025	18,312	▼ -22	40	52	76
Aug 2025	18,334	▼ -17	40	68	84
Jul 2025	18,351	▼ -40	40	61	111
Jun 2025	18,391	▼ -48	40	54	94
May 2025	18,439	▼ -8	40	84	105
Apr 2025	18,447	▲ +281	40	414	129

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
RegistryGate GmbH	4,401	25%	▲ +8	4	13
IONOS SE	3,644	20.7%	▲ +32	0	12
Cronon GmbH	2,442	13.8%	0	0	7
united-domains GmbH	1,505	8.5%	▲ +7	1	6
Mesh Digital Limited	1,227	7%	▲ +3	0	8
InterNetX GmbH	1,129	6.4%	▲ +19	6	10
Key-Systems, LLC	858	4.9%	▲ +4	3	4
Dynadot Inc	403	2.3%	▲ +3	0	3
Ascio Technologies, Inc. Danmark - Filial af Ascio technologies, Inc. USA	318	1.8%	0	2	2
INWX GmbH	247	1.4%	▲ +9	1	1
Vautron Rechenzentrum AG	222	1.3%	0	1	1
Dreamscape Networks International Pte Ltd	194	1.1%	▲ +1	0	0
EPAG Domainservices GmbH	171	1%	0	0	1
http.net Internet GmbH	117	0.7%	0	1	0
COREhub, S.R.L.	111	0.6%	▲ +1	0	1
CPS-Datensysteme GmbH	92	0.5%	0	0	0
Variomedia AG	81	0.5%	0	0	0
1API GmbH	77	0.4%	0	0	2
MarkMonitor Inc.	64	0.4%	0	0	0
OVH sas	55	0.3%	0	0	1
Nom-iq Ltd. dba COM LAUDE	48	0.3%	0	0	0
EuroDNS S.A.	42	0.2%	0	0	0
Ledl.net GmbH & Co KG	34	0.2%	0	0	1
CSC Corporate Domains, Inc.	29	0.2%	0	0	0
Hosting Concepts B.V. d/b/a Registrar.eu	22	0.1%	0	0	0
Secura GmbH	16	0.1%	0	0	0
Global Village GmbH	16	0.1%	0	0	0
NETIM SAS	13	0.1%	▲ +1	0	0
CSL Computer Service Langenbach GmbH d/b/a joker.com	12	0.1%	0	0	0
Gandi SAS	10	0.1%	0	1	0
Realtime Register B.V.	9	0.1%	0	1	1
101domain GRS Limited	6	0%	0	0	0
SafeBrands SAS	6	0%	0	0	0
Nameshield SAS	5	0%	0	0	0
Lexsynergy Limited	5	0%	0	0	0
Instra Corporation Pty Ltd.	4	0%	0	0	0
Safenames Ltd	2	0%	0	0	0
Marcaria International LLC	1	0%	0	0	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)	RDAP queries	Creates	Deletes	Renews
Apr 2026	38	275.02M	59.5k	152	152	1,190
Mar 2026	38	275.02M	59.5k	120	138	938
Feb 2026	38	275.02M	59.5k	116	130	833
Jan 2026	38	275.02M	59.5k	150	202	1,081
Dec 2025	38	275.02M	59.5k	108	168	854
Nov 2025	39	275.02M	59.5k	82	168	972
Oct 2025	39	275.02M	59.5k	114	946	1,473
Sep 2025	40	275.02M	59.5k	76	232	6,708
Aug 2025	40	275.02M	59.5k	134	1,794	1,472
Jul 2025	40	275.02M	59.5k	110	156	838
Jun 2025	40	275.02M	59.5k	82	194	873
May 2025	40	275.02M	59.5k	132	166	790
Apr 2025	40	275.02M	59.5k	718	148	867
Mar 2025	40	275.02M	59.5k	128	204	994
Feb 2025	40	275.02M	59.5k	88	306	857
Jan 2025	40	275.02M	59.5k	134	158	1,205
Dec 2024	40	275.02M	59.5k	78	192	896
Nov 2024	39	275.02M	59.5k	122	262	961
Oct 2024	39	275.02M	59.5k	132	868	1,570
Sep 2024	39	275.02M	59.5k	94	330	7,302
Aug 2024	39	275.02M	59.5k	74	194	1,643
Jul 2024	40	275.02M	59.5k	102	160	877
Jun 2024	40	275.02M	59.5k	92	148	766
May 2024	40	275.02M	59.5k	112	200	821
Apr 2024	40	275.02M	59.5k	92	226	891
Mar 2024	40	275.02M	59.5k	204	206	989
Feb 2024	40	275.02M	59.5k	106	154	902
Jan 2024	39	275.02M	59.5k	146	224	1,167
Dec 2023	39	517.48M	9.4k	88	198	926
Nov 2023	40	338.96M	0	116	210	1,020
Oct 2023	40	383.32M	0	148	848	1,583
Sep 2023	39	391.58M	0	140	252	7,805
Aug 2023	38	421.88M	0	88	130	1,679
Jul 2023	39	416.91M	0	128	134	823
Jun 2023	39	414.17M	0	90	190	895
May 2023	39	356.97M	0	140	220	830
Apr 2023	39	380.54M	0	114	208	963
Mar 2023	39	343.78M	0	176	468	992
Feb 2023	39	279.77M	0	102	190	975
Jan 2023	39	315.32M	0	180	228	1,206
Dec 2022	39	346.63M	0	154	298	996
Nov 2022	39	297.97M	0	144	122	1,067
Oct 2022	39	346.2M	0	136	588	1,614
Sep 2022	39	399.78M	0	140	352	8,371
Aug 2022	39	306.49M	0	86	78	1,616
Jul 2022	39	460.56M	0	92	232	795
Jun 2022	40	296.29M	0	93	107	817
May 2022	40	293.85M	0	114	104	1,006
Apr 2022	40	0	0	173	146	943
Mar 2022	40	266.16M	0	126	93	1,039
Feb 2022	40	221.62M	0	143	80	934
Jan 2022	40	258.91M	0	142	117	1,159
Dec 2021	40	277.32M	0	165	4,809	920
Nov 2021	40	267.07M	0	137	116	1,022
Oct 2021	40	276.9M	0	137	408	1,647
Sep 2021	40	246.99M	0	147	174	8,771
Aug 2021	40	285.66M	0	107	127	1,689
Jul 2021	40	246.41M	0	96	155	5,594
Jun 2021	40	243.72M	0	135	135	857
May 2021	40	275.3M	0	138	142	1,043
Apr 2021	40	393.71M	0	133	139	945
Mar 2021	39	308.87M	0	132	223	1,057
Feb 2021	39	273.19M	0	122	205	999
Jan 2021	39	279.73M	0	171	170	1,256
Dec 2020	57	249.09M	0	125	266	119
Nov 2020	57	0	0	126	301	120
Oct 2020	39	330.5M	0	180	937	1,764
Sep 2020	39	262.41M	0	137	194	9,723
Aug 2020	39	236.04M	0	162	126	6,439
Jul 2020	40	238.87M	0	140	72	968
Jun 2020	40	221.9M	0	179	73	812
May 2020	40	222.36M	0	350	130	773
Apr 2020	40	214.85M	0	192	106	867
Mar 2020	40	99.8M	0	160	96	1,018
Feb 2020	40	125.7M	0	141	91	957
Jan 2020	40	122.71M	0	133	324	1,242
Dec 2019	56	128.55M	0	127	179	137
Nov 2019	56	122.51M	0	141	205	1,125
Oct 2019	56	102.7M	0	139	801	1,767
Sep 2019	56	89.92M	0	156	222	10,611
Aug 2019	56	96.48M	0	150	115	6,544
Jul 2019	56	52.9M	0	130	209	990
Jun 2019	56	64.86M	0	104	174	735
May 2019	56	91.97M	0	112	138	765
Apr 2019	56	80.82M	0	140	164	874
Mar 2019	56	93.15M	0	149	146	1,027
Feb 2019	56	57.84M	0	167	114	922
Jan 2019	56	89.91M	0	159	150	1,236
Dec 2018	56	78.41M	0	175	133	894
Nov 2018	56	74.75M	0	188	210	1,072
Oct 2018	56	69.53M	0	187	831	1,759
Sep 2018	56	74.95M	0	164	235	11,652
Aug 2018	56	83.5M	0	127	120	6,720
Jul 2018	56	44.16M	0	147	94	783
Jun 2018	56	34.66M	0	47	59	1,101
May 2018	43	48.7M	0	123	88	155
Apr 2018	43	73.97M	0	148	108	130
Mar 2018	42	73.37M	0	207	143	137
Feb 2018	42	66.57M	0	178	112	133
Jan 2018	42	76.33M	0	220	137	142

Data currency. Domain counts on this page are from zone files dated 14 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.