`ctco.es`

DNSSEC	⚠️ Not signed
A	88.84.88.231^{🇪🇸 Equinix88.84.88.0/23}
		PTR	`publicaciones01.ctan.es`
NS	`ns2.ctco.es` ⭐
NS	`ns.ctco.es` ⚠️ Not in zone NS records
		A	88.84.88.231^{🇪🇸 Equinix88.84.88.0/23}
			PTR	`publicaciones01.ctan.es`
NS	`ns1.hornetdmarc.com` ⚠️ Not in parent delegation
		A	2400:cb00:2049:1::a29f:acd^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	162.159.10.205^{Cloudflare162.159.10.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.hornetdmarc.com` ⚠️ Not in parent delegation
		A	2400:cb00:2049:1::c629:dea3^{🇺🇸 Cloudflare2400:cb00:2049::/48 , Inc. 101 Townsend Street}
		A	198.41.222.163^{Cloudflare198.41.222.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`cf-198-41-222-163.cloudflare.com`
MX	`mx01.hornetsecurity.com` ⭐
		A	94.100.132.8^{🇩🇪 MK-NETZDIENSTE-AS94.100.132.0/23 ANTISPAMEUROPE-NET via AS25394}
			PTR	`mx01.hornetsecurity.com`
MX	`mx02.hornetsecurity.com`⁽²⁰⁾
		A	94.100.136.8^{🇩🇪 SSERV-AS94.100.136.0/23 ANTISPAMEUROPE via as24679.net}
			PTR	`mx02.hornetsecurity.com`
MX	`mx03.hornetsecurity.com`⁽³⁰⁾
		A	94.100.134.8^{🇩🇪 NCORE-AS94.100.134.0/24 antispameurope GmbH via as12676}
			PTR	`mx03.hornetsecurity.com`
MX	`mx04.hornetsecurity.com`⁽⁴⁰⁾
		A	94.100.136.7^{🇩🇪 SSERV-AS94.100.136.0/23 ANTISPAMEUROPE via as24679.net}
			PTR	`mx04.hornetsecurity.com`
MX	`ctco-es.mail.protection.outlook.com`⁽⁵⁰⁾
		A	2a01:111:f403:ca21::^{🇪🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ma2p292cu00400.inbound.protection.outlook.com`
		A	2a01:111:f403:ca21::1^{🇪🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ma4p292cu00201.inbound.protection.outlook.com`
		A	2a01:111:f403:ca21::2^{🇪🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ma3p292cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:ca21::3^{🇪🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ma2p292cu00303.inbound.protection.outlook.com`
		A	52.101.91.0^{🇪🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ma2p292cu00400.inbound.protection.outlook.com`
		A	52.101.91.1^{🇪🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ma4p292cu00201.inbound.protection.outlook.com`
		A	52.101.91.2^{🇪🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ma3p292cu00202.inbound.protection.outlook.com`
		A	52.101.91.3^{🇪🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ma2p292cu00303.inbound.protection.outlook.com`
TXT	`v=spf1 include:spf.hornetsecurity.com ~all`
TXT	`MS=ms31968606`
SOA	`ns.ctco.es`mlora@ctco.es 2026-02-10 #1

`es`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns1.nic.es` ⭐
	NS	`a.nic.es`
	NS	`c.nic.es`
	NS	`g.nic.es`
	NS	`h.nic.es`
	SOA	`ns1.nic.es`hostmaster@nic.es 2026-03-28 #6

Same first word

ctco.org

ctco.ca

ctco.net

ctco.es

ctco.co.uk

ctco.ir

ctco.de

ctco.cn

ctco.com.cn

ctco.lv

ctco.eu

ctco.com

ctco.net.cn

ctco.cl

Similar names

cotc.com

ctoc.com

ctoc.pt

octc.eu

occt.com

ccto.com.co

otcc.ch

ccot.org

cotc.co

tocc.org

tcoc.net.tw

ctoc.nl

octc.us

ccot.net

tocc.de

tocc.com

cotc.org

tcco.ca

ccto.org

otcc.com.au

tocc.fi

ctoc.in

tcco.co.uk

tocc.ru

otcc.org

ccto.cc

tcoc.org.tw

tocc.net

coct.net

cotc.eu

ctoc.com.au

cotc.jp

ccto.com.cn

cotc.info

otcc.net

ccto.cn

ctoc.cn

coct.qld.edu.au

otcc.ir

tcco.com.tw

otcc.com

octc.org

ctoc.jp

tcco.net.au

cotc.tempurl.host

tocc.co.uk

ctoc.com.tw

coct.org

ccto.net

ctoc.ca

octc.net

tocc.tv

tocc.com.br

tcoc.org

octc.org.nz

tcco.org

occt.org

tocc.us

coct.ru

octc.co.uk

ccot.ru

ccto.ca

ccot.us

tcoc.ru

tcco.ch

occt.ch

tocc.nl

ccot.co.uk

tcco.com

cotc.com.tw

cotc.cn

tcco.nl

ctoc.es

tcco.org.uk

ctoc.de

ctoc.online

coct.com

tcco.net

occt.fr

cotc.co.za

octc.de

coct.cn

cotc.net.cn

tcco.me

ccto.nl

cotc.net

ctoc.ru

occt.de

ccto.ws

tcco.ir

otcc.de

octc.or.jp

cotc.edu

occt.ru

octc.blogspot.com

tocc.mobi

octc.ca

ctoc.cc

coct.co

octc.com

tocc.biz

cotc.careers

tocc.cz

ccot.edu.vn

tcoc.net

coct.de

ccto.com

tocc.edu

otcc.lt

tocc.es

cotc.us

cotc.com.au

tcco.ru

tocc.jp

tcoc.de

otcc.org.uk

tcoc.cc

tocc.cc

tocc.eu

ctoc.eu

cotc.in

DNS History

14 records (10 active, 4 former)

●NSns.ctco.es2015-07-14 → 2026-03-28 · 2 obs

● 2015-07-14 10:44:04
● 2026-03-28 09:41:10

●NSns1.hornetdmarc.com2026-03-27 → 2026-03-28 · 3 obs

○ 2015-07-14 10:44:04
● 2026-03-27 00:40:38
● 2026-03-28 09:41:10

●NSns2.ctco.es2026-03-27 → 2026-03-28 · 3 obs

○ 2015-07-14 10:44:04
● 2026-03-27 00:40:38
● 2026-03-28 09:41:10

●NSns2.hornetdmarc.com2026-03-27 → 2026-03-28 · 3 obs

○ 2015-07-14 10:44:04
● 2026-03-27 00:40:38
● 2026-03-28 09:41:10

●MXctco-es.mail.protection.outlook.com2026-03-27 → 2026-03-28 · 3 obs

○ 2018-01-16 04:03:50
● 2026-03-27 00:40:38
● 2026-03-28 09:41:10

○MXmail.ctco.es2015-07-14 → 2018-01-16 · 4 obs

● 2015-07-14 10:44:04
● 2018-01-16 04:03:50
○ 2026-03-27 00:40:38
○ 2026-03-28 09:41:10

●MXmx01.hornetsecurity.com2026-03-27 → 2026-03-28 · 3 obs

○ 2018-01-16 04:03:50
● 2026-03-27 00:40:38
● 2026-03-28 09:41:10

●MXmx02.hornetsecurity.com2026-03-27 → 2026-03-28 · 3 obs

○ 2018-01-16 04:03:50
● 2026-03-27 00:40:38
● 2026-03-28 09:41:10

●MXmx03.hornetsecurity.com2026-03-27 → 2026-03-28 · 3 obs

○ 2018-01-16 04:03:50
● 2026-03-27 00:40:38
● 2026-03-28 09:41:10

●MXmx04.hornetsecurity.com2026-03-27 → 2026-03-28 · 3 obs

○ 2018-01-16 04:03:50
● 2026-03-27 00:40:38
● 2026-03-28 09:41:10

○A83.175.211.2092015-07-14 → 2016-07-13 · 4 obs

● 2015-07-14 10:44:04
● 2016-07-13 01:39:14
○ 2016-12-02 18:42:16
○ 2026-03-28 09:41:10

○A84.124.64.1932018-01-16 → 2018-01-16 · 4 obs

○ 2016-12-04 06:07:08
● 2018-01-16 04:03:50
○ 2026-03-27 00:40:38
○ 2026-03-28 09:41:10

○A87.124.161.1872016-12-02 → 2016-12-04 · 5 obs

○ 2016-07-13 01:39:14
● 2016-12-02 18:42:16
● 2016-12-04 06:07:08
○ 2018-01-16 04:03:50
○ 2026-03-28 09:41:10

●A88.84.88.2312026-03-27 → 2026-03-28 · 3 obs

○ 2018-01-16 04:03:50
● 2026-03-27 00:40:38
● 2026-03-28 09:41:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
es	a.nic.es, c.nic.es, g.nic.es, h.nic.es	-
ctco.es	ns2.ctco.es, ns.ctco.es	2 records

✅ Authoritative Response

Server:88.84.88.231

NS records: ns2.ctco.es, ns.ctco.es

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ctco.es (unsigned zone)

⏱️ Timing

Total: 515ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`88.84.88.231`
NS	3	`ns.ctco.es, ns2.hornetdmarc.com...`
MX	5	`mx02.hornetsecurity.com (pri: 20), mx04.hornetsecurity.com (pri: 40)...`
TXT	2	`v=spf1 include:spf.hornetsecurity.com ~a, MS=ms31968606`
SOA	1	`ns.ctco.es mlora.ctco.es`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns.ctco.es, ns2.ctco.es)

Analysis

IP Addresses

ctco.es points to a single IP: 88.84.88.231.

Other host names, for instance mail.ctan.es, mail.cmtbc.es, cmtbc.es, siu.ctmcg.es and mail.ctal.es share IP numbers with ctco.es.

Name Servers

ctco.es's delegation is handled by four name servers: ns1.hornetdmarc.com, ns2.hornetdmarc.com, ns2.ctco.es and ns.ctco.es.

ctco.es partially shares name servers with other domains; examples include poliureas.es, reconsl.com, tmarvic.com, sattoral.es and wififix.nl.