groupmath.com - dns.ninja

groupmath.com

DNSSEC⚠️ Not signed
A168.146.68.33🇺🇸 PEARSON-NA168.146.68.0/22 NCS Pearson Inc.
PTRus1.park.global.pearson.com
PTRus1.redirect.global.pearson.com
NSdns-amer-2.ptns.pearson.com ⭐ ⚠️ Not in parent delegation
A159.182.12.40🇺🇸 PEARSON-NA159.182.12.0/24 NCS Pearson Inc.
PTRdns-amer-2.ptns.pearson.com
NSdns-apac-1.ptns.pearson.com ⚠️ Not in parent delegation
A159.182.67.40🇺🇸 PEARSON-APAC159.182.67.0/24 Pearson Group
PTRdns-apac-1.ptns.pearson.com
NSdns-emea-1.ptns.pearson.com ⚠️ Not in parent delegation
A159.182.79.40🇺🇸 PEARSON-EMEA159.182.79.0/24 Pearson Group
PTRdns-emea-1.ptns.pearson.com
NSns1.pearson.com ⚠️ Not in zone NS records
A168.146.112.10🇺🇸 PEARSON-NA168.146.112.0/24 NCS Pearson Inc.
PTRns1.pearson.com
NSns2.pearson.com ⚠️ Not in zone NS records
A168.146.112.11🇺🇸 PEARSON-NA168.146.112.0/24 NCS Pearson Inc.
PTRns2.pearson.com
TXTv=spf1 -all
SOAdns-amer-2.ptns.pearson.comgns-dnsoperations@pearson.com serial=7

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=1784850072

PTR for

208.29.224.63.in-addr.arpa

Same first word

groupmath.com

Similar names

htmagroup.com
amhtgroup.com
magroupth.com

DNS History

15 records (6 active, 9 former)

2008201020122014201620182020202220242026NSdns-amer-2.ptns.pearson.comdns-apac-1.ptns.pearson.comdns-emea-1.ptns.pearson.comns1.pearson.comns2.pearson.comns01.pearson.comns02.pearson.comns03.pearson.comns04.pearson.comoldtxdns2.pearsontc.comusrxdns1.pearsontc.comMXmail77.pearsontc.netA168.146.68.33159.182.72.1863.224.29.208
●NSdns-amer-2.ptns.pearson.com2026-03-20 → 2026-07-23 · 3 obs
○ 2019-12-29 01:44:46
● 2026-03-20 17:27:30
● 2026-07-23 23:43:08
●NSdns-apac-1.ptns.pearson.com2026-03-20 → 2026-07-23 · 3 obs
○ 2019-12-29 01:44:46
● 2026-03-20 17:27:30
● 2026-07-23 23:43:08
●NSdns-emea-1.ptns.pearson.com2026-03-20 → 2026-07-23 · 3 obs
○ 2019-12-29 01:44:46
● 2026-03-20 17:27:30
● 2026-07-23 23:43:08
○NSns01.pearson.com2015-08-20 → 2019-12-29 · 5 obs
○ 2007-12-14 23:56:38
● 2015-08-20 17:04:06
● 2019-12-29 01:44:46
○ 2026-03-20 17:27:30
○ 2026-07-23 23:43:08
○NSns02.pearson.com2015-08-20 → 2019-12-29 · 5 obs
○ 2007-12-14 23:56:38
● 2015-08-20 17:04:06
● 2019-12-29 01:44:46
○ 2026-03-20 17:27:30
○ 2026-07-23 23:43:08
○NSns03.pearson.com2015-08-20 → 2019-12-29 · 5 obs
○ 2007-12-14 23:56:38
● 2015-08-20 17:04:06
● 2019-12-29 01:44:46
○ 2026-03-20 17:27:30
○ 2026-07-23 23:43:08
○NSns04.pearson.com2015-08-20 → 2019-12-29 · 5 obs
○ 2007-12-14 23:56:38
● 2015-08-20 17:04:06
● 2019-12-29 01:44:46
○ 2026-03-20 17:27:30
○ 2026-07-23 23:43:08
●NSns1.pearson.com2026-03-20 → 2026-07-23 · 3 obs
○ 2019-12-29 01:44:46
● 2026-03-20 17:27:30
● 2026-07-23 23:43:08
●NSns2.pearson.com2026-03-20 → 2026-07-23 · 3 obs
○ 2019-12-29 01:44:46
● 2026-03-20 17:27:30
● 2026-07-23 23:43:08
○NSoldtxdns2.pearsontc.com2007-12-14 → 2007-12-14 · 3 obs
● 2007-12-14 23:56:38
○ 2015-08-20 17:04:06
○ 2026-07-23 23:43:08
○NSusrxdns1.pearsontc.com2007-12-14 → 2007-12-14 · 3 obs
● 2007-12-14 23:56:38
○ 2015-08-20 17:04:06
○ 2026-07-23 23:43:08
○MXmail77.pearsontc.net2007-12-14 → 2019-12-29 · 4 obs
● 2007-12-14 23:56:38
● 2019-12-29 01:44:46
○ 2026-03-20 17:27:30
○ 2026-07-23 23:43:08
○A159.182.72.182026-03-20 → 2026-06-03 · 12 obs
○ 2019-12-29 01:44:46
● 2026-03-20 17:27:30
○ 2026-05-14 16:23:24
● 2026-05-15 14:58:42
○ 2026-05-18 07:02:44
○ 2026-05-19 06:04:36
● 2026-05-21 01:10:52
● 2026-05-31 07:16:56
○ 2026-06-02 19:07:06
● 2026-06-03 16:26:22
○ 2026-06-10 06:45:40
○ 2026-07-23 23:43:08
●A168.146.68.332026-05-14 → 2026-07-23 · 11 obs
○ 2026-03-20 17:27:30
● 2026-05-14 16:23:24
○ 2026-05-15 14:58:42
● 2026-05-18 07:02:44
● 2026-05-19 06:04:36
○ 2026-05-21 01:10:52
○ 2026-05-31 07:16:56
● 2026-06-02 19:07:06
○ 2026-06-03 16:26:22
● 2026-06-10 06:45:40
● 2026-07-23 23:43:08
○A63.224.29.2082007-12-14 → 2019-12-29 · 4 obs
● 2007-12-14 23:56:38
● 2019-12-29 01:44:46
○ 2026-03-20 17:27:30
○ 2026-07-23 23:43:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
groupmath.comns2.pearson.com, ns1.pearson.com2 records

✅ Authoritative Response

Server:168.146.112.10

NS records: ns2.pearson.com, ns1.pearson.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for groupmath.com (unsigned zone)

⏱️ Timing

Total: 181ms | Queries: -

📄 Records

TypeCountSample Data
A1168.146.68.33
NS3dns-apac-1.ptns.pearson.com, dns-emea-1.ptns.pearson.com...
TXT1v=spf1 -all
SOA1dns-amer-2.ptns.pearson.com gns-dnsopera

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.pearson.com, ns1.pearson.com)

Analysis

IP Addresses

groupmath.com has exactly one IP address — 168.146.68.33.

raventest.net, pearson.pe, us1.park.global.pearson.com plus two other host names have IP numbers in common with groupmath.com.

Name Servers

Five name servers handle delegation for groupmath.com: ns1.pearson.com, ns2.pearson.com, dns-amer-2.ptns.pearson.com and two others.

The name servers of groupmath.com overlap at least partially with those of other domains — among them embanet-compass.com, learnwithpearson.com, ncspearson.org and two more.

These name servers commonly appear alongside the name servers dns-apac-1.ptns.pearson.com and dns-emea-1.ptns.pearson.com.

Host names resolving to a single IP address:

ns1.pearson.com resolves to 168.146.112.10.

ns2.pearson.com resolves to 168.146.112.11.

dns-amer-2.ptns.pearson.com resolves to 159.182.12.40.

dns-apac-1.ptns.pearson.com resolves to 159.182.67.40.

dns-emea-1.ptns.pearson.com resolves to 159.182.79.40.