mcgrawhill.dk - robtex.com

mcgrawhill.dk

DNSSEC⚠️ Not signed
NSpdns85.ultradns.com ⭐
A2001:502:f3ff::79🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar
PTRpdns85.ultradns.com
A156.154.64.85🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar
PTRpdns85.ultradns.com
NSpdns85.ultradns.biz
A2610:a1:1015::79🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar
PTRpdns85.ultradns.biz
A156.154.66.85🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar
PTRpdns85.ultradns.biz
NSpdns85.ultradns.net
A2610:a1:1014::79🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar
PTRpdns85.ultradns.net
A156.154.65.85🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar
PTRpdns85.ultradns.net
NSpdns85.ultradns.org
A2001:502:4612::79🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar
PTRpdns85.ultradns.org
A156.154.67.85🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar
PTRpdns85.ultradns.org
TXTv=spf1 -all
SOApdns85.ultradns.comhostmaster@mheducation.com 2019-10-10 #9

dk

DNSSEC🔒 Signed (DS record present)
NSb.nic.dk ⭐
NSc.nic.dk
NSh.nic.dk
NSl.nic.dk
NSs.nic.dk
NSt.nic.dk
TXTDK zone updateEpoch 1777090861localtime Sat Apr 25 06:21:01 2026gmtime Sat Ap...
SOAb.nic.dktech@punktum.dk serial=1777090861

Same first word

mcgrawhill.me
mcgrawhill.co.uk
mcgrawhill.com
mcgrawhill.pr
mcgrawhill.net
mcgrawhill.us
mcgrawhill.ie
mcgrawhill.mobi
mcgrawhill.it
mcgrawhill.mx
mcgrawhill.fr
mcgrawhill.tw
mcgrawhill.sucks
mcgrawhill.org
mcgrawhill.cx
mcgrawhill.com.ru
mcgrawhill.io
mcgrawhill.ae
mcgrawhill.ca
mcgrawhill.ph
mcgrawhill.biz
mcgrawhill.app
mcgrawhill.cc
mcgrawhill.education
mcgrawhill.com.ph
mcgrawhill.be
mcgrawhill.com.pr
mcgrawhill.ag
mcgrawhill.co.il
mcgrawhill.dk
mcgrawhill.gen.in
mcgrawhill.com.pe
mcgrawhill.eu
mcgrawhill.tv
mcgrawhill.cn
mcgrawhill.co.at

DNS History

4 records (4 active, 0 former)

NSpdns85.ultradns.bizpdns85.ultradns.compdns85.ultradns.netpdns85.ultradns.org
●NSpdns85.ultradns.biz2026-04-23 → 2026-04-25 · 2 obs
● 2026-04-23 16:09:00
● 2026-04-25 04:23:34
●NSpdns85.ultradns.com2026-04-23 → 2026-04-25 · 2 obs
● 2026-04-23 16:09:00
● 2026-04-25 04:23:34
●NSpdns85.ultradns.net2026-04-23 → 2026-04-25 · 2 obs
● 2026-04-23 16:09:00
● 2026-04-25 04:23:34
●NSpdns85.ultradns.org2026-04-23 → 2026-04-25 · 2 obs
● 2026-04-23 16:09:00
● 2026-04-25 04:23:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dkb.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...-
mcgrawhill.dkpdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net, pdns85.ultradns.org-

✅ Authoritative Response

Server:156.154.66.85

NS records: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net, pdns85.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mcgrawhill.dk (unsigned zone)

⏱️ Timing

Total: 868ms | Queries: -

📄 Records

TypeCountSample Data
NS4pdns85.ultradns.biz, pdns85.ultradns.com...
TXT1v=spf1 -all
SOA1pdns85.ultradns.com hostmaster.mheducati

Analysis

Name Servers

mcgrawhill.dk is delegated to four name servers: pdns85.ultradns.biz, pdns85.ultradns.com, pdns85.ultradns.net and pdns85.ultradns.org.

mcgrawhill.dk at least partially shares name servers with other domains, for instance mcgrawhillacquity.com, mathintervention.net, mhpdonline.com, practicalneonatalecho.com and gandt.info.

Host names with two IP numbers:

pdns85.ultradns.biz points to: 2610:a1:1015::79 and 156.154.66.85.

pdns85.ultradns.com points to: 2001:502:f3ff::79 and 156.154.64.85.

pdns85.ultradns.net points to: 2610:a1:1014::79 and 156.154.65.85.

pdns85.ultradns.org points to: 2001:502:4612::79 and 156.154.67.85.