`officechallenge.com`

DNSSEC	⚠️ Not signed
A	207.91.25.19^{🇺🇸 WINDSTREAM-1207.91.0.0/18 Windstream Aggregate (AS7029)}
		PTR	`h19.25.91.207.static.ip.windstream.net`
NS	`udns1.cscdns.net` ⭐
		A	2001:502:f3ff::201^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`edns1.ultradns.com`
			PTR	`udns1.cscdns.net`
			PTR	`udns1.cscdns.uk`
			PTR	`ns1.webipdns.com.au`
		A	204.74.66.1^{🇺🇸 MAINT-ID-12008204.74.66.0/24 Neustar}
			PTR	`ns1.alba.bank`
			PTR	`edns1.ultradns.com`
			PTR	`udns1.cscdns.net`
			PTR	`udns1.cscdns.uk`
			PTR	`ns1.webipdns.com.au`
NS	`udns2.cscdns.uk`
		A	2001:502:4612::201^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`udns2.cscdns.net`
			PTR	`edns1.ultradns.org`
			PTR	`udns2.cscdns.uk`
			PTR	`ns2.webipdns.com.au`
		A	204.74.111.1^{🇺🇸 MAINT-ID-12008204.74.111.0/24 Neustar}
			PTR	`ns2.alba.bank`
			PTR	`udns2.cscdns.net`
			PTR	`edns1.ultradns.org`
			PTR	`udns2.cscdns.uk`
			PTR	`ns2.webipdns.com.au`
SOA	`udns1.cscdns.net`premiumdns@support.neustar 2019-11-10 #4

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774374827

Same first word

officechallenge.com

Similar names

challengeoffice.com

DNS History

8 records (3 active, 5 former)

○NSa4.nstld.com2018-10-17 → 2018-10-17 · 4 obs

○ 2017-01-25 22:04:48
● 2018-10-17 23:31:40
○ 2026-03-24 18:17:18
○ 2026-03-24 18:17:20

○NSdns1.cscdns.net2015-06-14 → 2017-01-25 · 4 obs

● 2015-06-14 23:03:36
● 2017-01-25 22:04:48
○ 2018-10-17 23:31:40
○ 2026-03-24 18:17:20

○NSdns2.cscdns.net2015-06-14 → 2017-01-25 · 4 obs

● 2015-06-14 23:03:36
● 2017-01-25 22:04:48
○ 2018-10-17 23:31:40
○ 2026-03-24 18:17:20

○NSf4.nstld.com2018-10-17 → 2018-10-17 · 4 obs

○ 2017-01-25 22:04:48
● 2018-10-17 23:31:40
○ 2026-03-24 18:17:18
○ 2026-03-24 18:17:20

○NSg4.nstld.com2018-10-17 → 2018-10-17 · 4 obs

○ 2017-01-25 22:04:48
● 2018-10-17 23:31:40
○ 2026-03-24 18:17:18
○ 2026-03-24 18:17:20

●NSudns1.cscdns.net2026-03-24 → 2026-03-24 · 3 obs

○ 2018-10-17 23:31:40
● 2026-03-24 18:17:18
● 2026-03-24 18:17:20

●NSudns2.cscdns.uk2026-03-24 → 2026-03-24 · 3 obs

○ 2018-10-17 23:31:40
● 2026-03-24 18:17:18
● 2026-03-24 18:17:20

●A207.91.25.192015-06-14 → 2026-03-24 · 2 obs

● 2015-06-14 23:03:36
● 2026-03-24 18:17:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, h.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net...	-
officechallenge.com	udns1.cscdns.net, udns2.cscdns.uk	-

✅ Authoritative Response

Server:204.74.111.1

NS records: udns1.cscdns.net, udns2.cscdns.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for officechallenge.com (unsigned zone)

⏱️ Timing

Total: 158ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`207.91.25.19`
NS	2	`udns1.cscdns.net, udns2.cscdns.uk`
SOA	1	`udns1.cscdns.net premiumdns.support.neus`

Analysis

IP Addresses

officechallenge.com points to a single IP: 207.91.25.19.

Name Servers

Two name servers udns1.cscdns.net and udns2.cscdns.uk handle delegation for officechallenge.com.

officechallenge.com uses the same name server setup as other domains, for example britishcouncil.tn, ectocryp.net, boat-tv.com.au, marsmission.fi and perfectmousse.com.

officechallenge.com partially shares name servers with other domains; examples include aeg.no, fidelityventures.com, 221.223.192.in-addr.arpa, heliar.com and mxcgriff.com.

Host names with two IP numbers:

udns1.cscdns.net points to: 2001:502:f3ff::201 and 204.74.66.1

udns2.cscdns.uk points to: 2001:502:4612::201 and 204.74.111.1

officechallenge.com - robtex.com