jacobs.ag - robtex.com

jacobs.ag

DNSSEC⚠️ Not signed
A2001:8d8:100f:f000::2d9🇩🇪 IONOS-AS2001:8d8::/32 DE-IONOS-20020910
PTR2001-08d8-100f-f000-0000-0000-0000-02d9.elastic-ssl.ui-r.com
A217.160.0.10🇩🇪 IONOS-AS217.160.0.0/16 IONOS-PA-3
NSns65.1und1.de ⭐
A2607:f1c0:fe:53:185:132:34:31🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns1031.ui-dns.com
A185.132.34.31🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRns1031.ui-dns.com
NSns66.1und1.de
A2607:f1c0:fe:53:185:132:35:30🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US
PTRns1030.ui-dns.org
A185.132.35.30🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS)
PTRns1030.ui-dns.org
MXjacobs-ag.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::9🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-db7pr03cu00601.inbound.protection.outlook.com
A2a01:111:f403:ca09::4🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am0pr04cu00504.inbound.protection.outlook.com
A2a01:111:f403:ca09::8🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as2pr05cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca09::d🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-as9pr05cu01305.inbound.protection.outlook.com
A52.101.68.10🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-dbbpr03cu00102.inbound.protection.outlook.com
A52.101.73.1🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am3pr04cu00501.inbound.protection.outlook.com
A52.101.73.28🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am7pr05cu00204.inbound.protection.outlook.com
A52.101.73.30🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am7pr05cu00306.inbound.protection.outlook.com
TXTv=spf1 include:spf.protection.outlook.com ip4:216.71.157.193 ip4:216.71.158.1...
TXTknowbe4-site-verification=16ed09167fa577fa0c7f3c72527f46af
TXTMS=ms97540497
SOAns65.1und1.dehostmaster@1und1.de 2017-07-17 #14

ag

DNSSEC🔒 Signed (DS record present)
NSa0.cctld.afilias-nst.info ⭐
NSa2.cctld.afilias-nst.info
NSb0.cctld.afilias-nst.org
NSb2.cctld.afilias-nst.org
NSc0.cctld.afilias-nst.info
NSd0.cctld.afilias-nst.org
SOAa0.cctld.afilias-nst.infohostmaster@donuts.email serial=1785034195

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DNS History

5 records (5 active, 0 former)

NSns65.1und1.dens66.1und1.deMXjacobs-ag.mail.protection.outlook.comA2001:8d8:100f:f000::2d9217.160.0.10
●NSns65.1und1.de2026-06-08 → 2026-07-26 · 2 obs
● 2026-06-08 12:40:48
● 2026-07-26 03:19:16
●NSns66.1und1.de2026-06-08 → 2026-07-26 · 2 obs
● 2026-06-08 12:40:48
● 2026-07-26 03:19:16
●MXjacobs-ag.mail.protection.outlook.com2026-06-08 → 2026-07-26 · 2 obs
● 2026-06-08 12:40:48
● 2026-07-26 03:19:16
●A2001:8d8:100f:f000::2d92026-06-08 → 2026-07-26 · 2 obs
● 2026-06-08 12:40:48
● 2026-07-26 03:19:16
●A217.160.0.102026-06-08 → 2026-07-26 · 2 obs
● 2026-06-08 12:40:48
● 2026-07-26 03:19:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
agb2.cctld.afilias-nst.org, a0.cctld.afilias-nst.info, d0.cctld.afilias-nst.org, a2.cctld.afilias-nst.info...12 records
jacobs.agns66.1und1.de, ns65.1und1.de-

✅ Authoritative Response

Server:185.132.35.30

NS records: ns66.1und1.de, ns65.1und1.de

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jacobs.ag (unsigned zone)

⏱️ Timing

Total: 1569ms | Queries: -

📄 Records

TypeCountSample Data
A1217.160.0.10
AAAA12001:8d8:100f:f000::2d9
NS2ns66.1und1.de, ns65.1und1.de
MX1jacobs-ag.mail.protection.outlook.com (p
TXT3knowbe4-site-verification=16ed09167fa577, MS=ms97540497...
SOA1ns65.1und1.de hostmaster.1und1.de

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (d0.cctld.afilias-nst.org, c0.cctld.afilias-nst.info, b2.cctld.afilias-nst.org...)

Analysis

IP Addresses

jacobs.ag directs to two IP numbers, 217.160.0.10 and 2001:8d8:100f:f000::2d9

keylightstudios.co.uk, lareserveproduction.com, benjaminstutzman.com and two other host names share IP numbers with jacobs.ag.

Name Servers

DNS delegation for jacobs.ag points to two name servers: ns65.1und1.de and ns66.1und1.de.

jacobs.ag uses the same name servers as several other domains — among them lextax.at, kaelberer-online.de, coatinc.be and two more.

jacobs.ag has at least partial name server overlap with other domains, such as bilderpower.de, dog(0x73686974).de, elektrobike.net and two others.

It is common to find these name servers alongside the name servers ns-de.1and1-dns.biz, ns-de.1and1-dns.com, ns-de.1and1-dns.de and two others.

ns65.1und1.de directs to 185.132.34.31 and 2607:f1c0:fe:53:185:132:34:31. ns66.1und1.de directs to 185.132.35.30 and 2607:f1c0:fe:53:185:132:35:30. Each host name carries two IP addresses.

Mail Servers

Mail for jacobs.ag is handled by a single mail server, jacobs-ag.mail.protection.outlook.com.

jacobs-ag.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.68.10, 52.101.73.1, 52.101.73.28 and 5 others.