b2b-on-koeln.com - robtex.com

b2b-on-koeln.com

DNSSEC⚠️ Not signed
A217.160.223.142🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3
PTRclienthosting.eu
NSns1057.ui-dns.org ⭐
A2001:8d8:fe:53:0:d9a0:5339:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1057.ui-dns.org
A217.160.83.57🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1057.ui-dns.org
NSns1057.ui-dns.biz
A2607:f1c0:fe:53:185:132:33:57🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns1057.ui-dns.biz
A185.132.33.57🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRns1057.ui-dns.biz
NSns1057.ui-dns.com
A2001:8d8:fe:53:0:d9a0:5239:100🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific
PTRns1057.ui-dns.com
A217.160.82.57🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific
PTRns1057.ui-dns.com
NSns1057.ui-dns.de
A2607:f1c0:fe:53:185:132:32:57🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns1057.ui-dns.de
A185.132.32.57🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRns1057.ui-dns.de
MXmx00.ionos.de ⭐
A212.227.15.41🇩🇪 IONOS-AS212.227.0.0/16 IONOS-PA-2
PTRmx00.kundenserver.de
MXmx01.ionos.de ⭐
A217.72.192.67🇩🇪 IONOS-AS217.72.192.0/20 Web.de
PTRmx01.kundenserver.de
TXTv=spf1 include:_spf-eu.ionos.com ~all
SOAns1057.ui-dns.orghostmaster@1und1.de 2016-04-29 #3

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1784022547

Same first word

b2b-on-koeln.com

DNS History

12 records (7 active, 5 former)

20162017201820192020202120222023202420252026NSns1057.ui-dns.bizns1057.ui-dns.comns1057.ui-dns.dens1057.ui-dns.orgns39.1und1.dens40.1und1.deMXmx00.ionos.demx01.ionos.demx00.kundenserver.demx01.kundenserver.deA217.160.223.14282.165.87.180
●NSns1057.ui-dns.biz2020-01-10 → 2026-07-14 · 3 obs
○ 2017-03-14 00:25:52
● 2020-01-10 03:33:04
● 2026-07-14 09:56:42
●NSns1057.ui-dns.com2020-01-10 → 2026-07-14 · 3 obs
○ 2017-03-14 00:25:52
● 2020-01-10 03:33:04
● 2026-07-14 09:56:42
●NSns1057.ui-dns.de2020-01-10 → 2026-07-14 · 3 obs
○ 2017-03-14 00:25:52
● 2020-01-10 03:33:04
● 2026-07-14 09:56:42
●NSns1057.ui-dns.org2020-01-10 → 2026-07-14 · 3 obs
○ 2017-03-14 00:25:52
● 2020-01-10 03:33:04
● 2026-07-14 09:56:42
○NSns39.1und1.de2015-08-19 → 2017-03-14 · 4 obs
● 2015-08-19 17:49:46
● 2017-03-14 00:25:52
○ 2020-01-10 03:33:04
○ 2026-07-14 09:56:42
○NSns40.1und1.de2015-08-19 → 2017-03-14 · 4 obs
● 2015-08-19 17:49:46
● 2017-03-14 00:25:52
○ 2020-01-10 03:33:04
○ 2026-07-14 09:56:42
●MXmx00.ionos.de2026-03-21 → 2026-07-14 · 3 obs
○ 2020-01-10 03:33:04
● 2026-03-21 08:41:56
● 2026-07-14 09:56:42
○MXmx00.kundenserver.de2015-08-19 → 2020-01-10 · 4 obs
● 2015-08-19 17:49:46
● 2020-01-10 03:33:04
○ 2026-03-21 08:41:56
○ 2026-07-14 09:56:42
●MXmx01.ionos.de2026-03-21 → 2026-07-14 · 3 obs
○ 2020-01-10 03:33:04
● 2026-03-21 08:41:56
● 2026-07-14 09:56:42
○MXmx01.kundenserver.de2015-08-19 → 2020-01-10 · 4 obs
● 2015-08-19 17:49:46
● 2020-01-10 03:33:04
○ 2026-03-21 08:41:56
○ 2026-07-14 09:56:42
●A217.160.223.1422016-07-11 → 2026-07-14 · 3 obs
○ 2016-03-13 02:50:42
● 2016-07-11 18:35:50
● 2026-07-14 09:56:42
○A82.165.87.1802015-08-19 → 2016-03-13 · 4 obs
● 2015-08-19 17:49:46
● 2016-03-13 02:50:42
○ 2016-07-11 18:35:50
○ 2026-07-14 09:56:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
b2b-on-koeln.comns1057.ui-dns.de, ns1057.ui-dns.biz, ns1057.ui-dns.org, ns1057.ui-dns.com2 records

✅ Authoritative Response

Server:217.160.82.57

NS records: ns1057.ui-dns.de, ns1057.ui-dns.biz, ns1057.ui-dns.org, ns1057.ui-dns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for b2b-on-koeln.com (unsigned zone)

⏱️ Timing

Total: 936ms | Queries: -

📄 Records

TypeCountSample Data
A1217.160.223.142
NS4ns1057.ui-dns.org, ns1057.ui-dns.biz...
MX2mx01.ionos.de (pri: 10), mx00.ionos.de (pri: 10)
TXT1v=spf1 include:_spf-eu.ionos.com ~all
SOA1ns1057.ui-dns.org hostmaster.1und1.de

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1057.ui-dns.com, ns1057.ui-dns.com)

Analysis

IP Addresses

b2b-on-koeln.com resolves to one IP address: 217.160.223.142.

enina.de, bindcore.de, jaegermeisterei.de and two other host names share IP numbers with b2b-on-koeln.com.

Name Servers

The authoritative name servers for b2b-on-koeln.com are ns1057.ui-dns.biz, ns1057.ui-dns.com, ns1057.ui-dns.de and ns1057.ui-dns.org.

b2b-on-koeln.com shares at least some of its name servers with other domains, including dates-anniversaires.com, amserv.info, secoprotec-formation.com and two others.

These name servers are frequently seen alongside ns1090.ui-dns.org, ns1049.ui-dns.de, ns1104.ui-dns.biz and 4 other name servers.

The host names ns1057.ui-dns.biz, ns1057.ui-dns.com, ns1057.ui-dns.de and ns1057.ui-dns.org each resolve to two IP addresses: ns1057.ui-dns.biz resolves to 185.132.33.57 and 2607:f1c0:fe:53:185:132:33:57; ns1057.ui-dns.com resolves to 217.160.82.57 and 2001:8d8:fe:53:0:d9a0:5239:100; ns1057.ui-dns.de resolves to 185.132.32.57 and 2607:f1c0:fe:53:185:132:32:57; ns1057.ui-dns.org resolves to 217.160.83.57 and 2001:8d8:fe:53:0:d9a0:5339:100.

Mail Servers

Mail for b2b-on-koeln.com is handled by two mail servers — mx00.ionos.de and mx01.ionos.de.

b2b-on-koeln.com uses an identical mail server configuration to several other domains — among them cobrabrush.com, gorkischule.de, ews-nord.de and two more.

mx00.ionos.de and mx01.ionos.de each resolve to one IP number: mx00.ionos.de points to 212.227.15.41 and mx01.ionos.de points to 217.72.192.67.