office - robtex.com

office

DNSSECπŸ”’ Signed (DS record present)
NSdns1.nic.office ⭐
A2a01:618:403::136πŸ‡¬πŸ‡§ NOMINET-12a01:618:403::/48
A213.248.219.136πŸ‡¬πŸ‡§ NOMINET-1213.248.219.0/24
NSdns2.nic.office
A2401:fd80:403::136πŸ‡¦πŸ‡Ί NOMINET-12401:fd80:403::/48 NOMINET UK Minerva House Edmund Halley Road Oxford Science Park
A103.49.83.136πŸ‡¦πŸ‡Ί NOMINET-1103.49.83.0/24 NOMINET UK Minerva House Edmund Halley Road Oxford Science Park
NSdns3.nic.office
A2a01:618:407::136πŸ‡¬πŸ‡§ NOMINET-12a01:618:407::/48
A213.248.223.136πŸ‡¬πŸ‡§ NOMINET-1213.248.223.0/24
NSdns4.nic.office
A2401:fd80:407::136πŸ‡¦πŸ‡Ί NOMINET-12401:fd80:407::/48 NOMINET UK Minerva House Edmund Halley Road Oxford Science Park
A43.230.51.136πŸ‡¦πŸ‡Ί NOMINET-143.230.51.0/24 NOMINET UK Minerva House Edmund Halley Road Oxford Science Park
NSdnsa.nic.office
A2001:502:ad09::3πŸ‡ΊπŸ‡Έ MAINT-ID-120082001:502:ad09::/48 Neustar
A156.154.100.3πŸ‡ΊπŸ‡Έ MAINT-ID-12008156.154.100.0/24 Neustar
PTRnsa.nic.uk
NSdnsb.nic.office
A2001:502:2eda::3πŸ‡ΊπŸ‡Έ MAINT-ID-120082001:502:2eda::/48 Neustar
A156.154.101.3πŸ‡ΊπŸ‡Έ MAINT-ID-12008156.154.101.0/24 Neustar
PTRnsb.nic.uk
NSdnsc.nic.office
A2610:a1:1009::3πŸ‡ΊπŸ‡Έ MAINT-ID-120082610:a1:1009::/48 Neustar
A156.154.102.3πŸ‡ΊπŸ‡Έ MAINT-ID-12008156.154.102.0/24 Neustar
PTRnsc.nic.uk
NSdnsd.nic.office
A2610:a1:1010::3πŸ‡ΊπŸ‡Έ MAINT-ID-120082610:a1:1010::/48 Neustar
A156.154.103.3πŸ‡ΊπŸ‡Έ MAINT-ID-12008156.154.103.0/24 Neustar
PTRnsd.nic.uk
SOAdns1.nic.officehostmaster@nominet.org.uk serial=1769076098

(root)

DNSSECπŸ”’ Signed (DS record present)
NSa.root-servers.net ⭐ ⚠️ Not in parent delegation
NSb.root-servers.net ⚠️ Not in parent delegation
NSc.root-servers.net ⚠️ Not in parent delegation
NSd.root-servers.net ⚠️ Not in parent delegation
NSe.root-servers.net ⚠️ Not in parent delegation
NSf.root-servers.net ⚠️ Not in parent delegation
NSg.root-servers.net ⚠️ Not in parent delegation
NSh.root-servers.net ⚠️ Not in parent delegation
NSi.root-servers.net ⚠️ Not in parent delegation
NSj.root-servers.net ⚠️ Not in parent delegation
NSk.root-servers.net ⚠️ Not in parent delegation
NSl.root-servers.net ⚠️ Not in parent delegation
NSm.root-servers.net ⚠️ Not in parent delegation
SOAa.root-servers.netnstld@verisign-grs.com 2026-06-04 #1
πŸ”’ HSTS Preload (+subdomains)

PTR for

MX for

Previously MX for

Subdomains

Same first word

Similar names

DNS History

16 records (8 active, 8 former)

20162017201820192020202120222023202420252026NSdns1.nic.officedns2.nic.officedns3.nic.officedns4.nic.officednsa.nic.officednsb.nic.officednsc.nic.officednsd.nic.officens1.dns.nic.officens2.dns.nic.officens3.dns.nic.officens4.dns.nic.officens5.dns.nic.officens6.dns.nic.officeMXyour-dns-needs-immediate-attention.officeA127.0.53.53
●NSdns1.nic.office2026-02-14 β†’ 2026-06-04 Β· 3 obs
β—‹ 2021-08-28 04:29:42
● 2026-02-14 21:07:06
● 2026-06-04 22:16:40
●NSdns2.nic.office2026-02-14 β†’ 2026-06-04 Β· 3 obs
β—‹ 2021-08-28 04:29:42
● 2026-02-14 21:07:06
● 2026-06-04 22:16:40
●NSdns3.nic.office2026-02-14 β†’ 2026-06-04 Β· 3 obs
β—‹ 2021-08-28 04:29:42
● 2026-02-14 21:07:06
● 2026-06-04 22:16:40
●NSdns4.nic.office2026-02-14 β†’ 2026-06-04 Β· 3 obs
β—‹ 2021-08-28 04:29:42
● 2026-02-14 21:07:06
● 2026-06-04 22:16:40
●NSdnsa.nic.office2026-02-14 β†’ 2026-06-04 Β· 3 obs
β—‹ 2021-08-28 04:29:42
● 2026-02-14 21:07:06
● 2026-06-04 22:16:40
●NSdnsb.nic.office2026-02-14 β†’ 2026-06-04 Β· 3 obs
β—‹ 2021-08-28 04:29:42
● 2026-02-14 21:07:06
● 2026-06-04 22:16:40
●NSdnsc.nic.office2026-02-14 β†’ 2026-06-04 Β· 3 obs
β—‹ 2021-08-28 04:29:42
● 2026-02-14 21:07:06
● 2026-06-04 22:16:40
●NSdnsd.nic.office2026-02-14 β†’ 2026-06-04 Β· 3 obs
β—‹ 2021-08-28 04:29:42
● 2026-02-14 21:07:06
● 2026-06-04 22:16:40
β—‹NSns1.dns.nic.office2015-08-03 β†’ 2021-08-28 Β· 4 obs
● 2015-08-03 16:41:46
● 2021-08-28 04:29:42
β—‹ 2026-02-14 21:07:06
β—‹ 2026-06-04 22:16:40
β—‹NSns2.dns.nic.office2015-08-03 β†’ 2021-08-28 Β· 4 obs
● 2015-08-03 16:41:46
● 2021-08-28 04:29:42
β—‹ 2026-02-14 21:07:06
β—‹ 2026-06-04 22:16:40
β—‹NSns3.dns.nic.office2015-08-03 β†’ 2021-08-28 Β· 4 obs
● 2015-08-03 16:41:46
● 2021-08-28 04:29:42
β—‹ 2026-02-14 21:07:06
β—‹ 2026-06-04 22:16:40
β—‹NSns4.dns.nic.office2015-08-03 β†’ 2021-08-28 Β· 4 obs
● 2015-08-03 16:41:46
● 2021-08-28 04:29:42
β—‹ 2026-02-14 21:07:06
β—‹ 2026-06-04 22:16:40
β—‹NSns5.dns.nic.office2015-08-03 β†’ 2021-08-28 Β· 4 obs
● 2015-08-03 16:41:46
● 2021-08-28 04:29:42
β—‹ 2026-02-14 21:07:06
β—‹ 2026-06-04 22:16:40
β—‹NSns6.dns.nic.office2015-08-03 β†’ 2021-08-28 Β· 4 obs
● 2015-08-03 16:41:46
● 2021-08-28 04:29:42
β—‹ 2026-02-14 21:07:06
β—‹ 2026-06-04 22:16:40
β—‹MXyour-dns-needs-immediate-attention.office2015-08-03 β†’ 2015-12-09 Β· 4 obs
● 2015-08-03 16:41:46
● 2015-12-09 08:10:02
β—‹ 2015-12-15 22:18:46
β—‹ 2026-06-04 22:16:40
β—‹A127.0.53.532015-08-03 β†’ 2015-12-09 Β· 4 obs
● 2015-08-03 16:41:46
● 2015-12-09 08:10:02
β—‹ 2015-12-15 22:18:46
β—‹ 2026-06-04 22:16:40

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
officedns1.nic.office, dns2.nic.office, dns3.nic.office, dns4.nic.office...16 records

βœ… Authoritative Response

Server:156.154.101.3

NS records: dns1.nic.office, dns2.nic.office, dns3.nic.office, dns4.nic.office, dnsa.nic.office, dnsb.nic.office, dnsc.nic.office, dnsd.nic.office

πŸ”’ DNSSEC Status

πŸ” Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 404ms | Queries: -

πŸ“„ Records

TypeCountSample Data
NS8dnsd.nic.office, dnsb.nic.office...
SOA1dns1.nic.office hostmaster.nominet.org.u

πŸ“Œ Glue Records Collected

Total: 16

In-bailiwick: 16 (dns1.nic.office, dns1.nic.office, dns2.nic.office...)

Analysis

Hierarchy

office is the parent of microsoft365.office, www.office, nic.office, m365.office and forms-int.office.

Mail Server Role

office is used as a mail server for icplus.com.

The mail servers mailstore1.secureserver.net and smtp.secureserver.net are often used together with office.

Name Servers

office is delegated to 8 name servers: dns1.nic.office, dns2.nic.office, dns3.nic.office and five others.

At least some of office's name servers are also used by other domains, among them nic.office.

These name servers are frequently paired with the name servers dns4.nic.office, dnsa.nic.office, dnsb.nic.office and two others.

Host names with two IP numbers:

dns1.nic.office directs traffic to 213.248.219.136 and 2a01:618:403::136.

dns2.nic.office directs traffic to 103.49.83.136 and 2401:fd80:403::136.

dns3.nic.office directs traffic to 213.248.223.136 and 2a01:618:407::136.

dns4.nic.office directs traffic to 43.230.51.136 and 2401:fd80:407::136.

dnsa.nic.office directs traffic to 156.154.100.3 and 2001:502:ad09::3.

dnsb.nic.office directs traffic to 156.154.101.3 and 2001:502:2eda::3.

dnsc.nic.office directs traffic to 156.154.102.3 and 2610:a1:1009::3.

dnsd.nic.office directs traffic to 156.154.103.3 and 2610:a1:1010::3.