mercklearning.com - robtex.com

mercklearning.com

DNSSEC⚠️ Not signed
A3.33.166.197🇺🇸 Amazon3.33.160.0/20
PTRaf6f849e18e4a0c33.awsglobalaccelerator.com
A166.117.53.172🇺🇸 Amazon166.117.48.0/20
NSdns1.p03.nsone.net ⭐
A2620:4d:4000:6259:7:3:0:1🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48
PTRdns1.p03.nsone.net
A198.51.44.3🇺🇸 NSONE198.51.44.0/24 198.51.44.0
PTRdns1.p03.nsone.net
NSdns2.p03.nsone.net
A2a00:edc0:6259:7:3::2🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2
PTRdns2.p03.nsone.net
A198.51.45.3🇺🇸 NSONE198.51.45.0/24 198.51.45.0
PTRdns2.p03.nsone.net
NSdns3.p03.nsone.net
A2620:4d:4000:6259:7:3:0:3🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48
PTRdns3.p03.nsone.net
A198.51.44.67🇺🇸 NSONE198.51.44.0/24 198.51.44.0
PTRdns3.p03.nsone.net
NSdns4.p03.nsone.net
A2a00:edc0:6259:7:3::4🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2
PTRdns4.p03.nsone.net
A198.51.45.67🇺🇸 NSONE198.51.45.0/24 198.51.45.0
PTRdns4.p03.nsone.net
NSns01.msddns.com
A45.54.26.1🇺🇸 NETACTUATE45.54.26.0/24 NetActuate, Inc
PTRns01.msddns.com
NSns02.msddns.com
A45.54.26.65🇺🇸 NETACTUATE45.54.26.0/24 NetActuate, Inc
PTRns02.msddns.com
NSns03.msddns.com
A45.54.26.129🇺🇸 NETACTUATE45.54.26.0/24 NetActuate, Inc
PTRns03.msddns.com
NSns04.msddns.com
A45.54.26.193🇺🇸 NETACTUATE45.54.26.0/24 NetActuate, Inc
PTRns04.msddns.com
TXTv=spf1 -all
SOAdns1.p03.nsone.nethostmaster@nsone.net serial=1743015176

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=1774454997
WOT: SAFE (61/100)

Same first word

mercklearning.com

DNS History

18 records (10 active, 8 former)

20162017201820192020202120222023202420252026NSdns1.p03.nsone.netdns2.p03.nsone.netdns3.p03.nsone.netdns4.p03.nsone.netns01.msddns.comns02.msddns.comns03.msddns.comns04.msddns.comatt.isc-sns.comatt.isc-sns.infoatt.isc-sns.netcbru.br.ns.els-gms.att.netcmtu.mt.ns.els-gms.att.netns6.customer.level3.netns9.customer.level3.netA166.117.53.1723.33.166.197155.91.16.177
○NSatt.isc-sns.com2015-07-08 → 2015-07-08 · 3 obs
● 2015-07-08 07:09:02
○ 2015-09-18 22:44:32
○ 2026-03-25 16:31:54
○NSatt.isc-sns.info2015-07-08 → 2015-07-08 · 3 obs
● 2015-07-08 07:09:02
○ 2015-09-18 22:44:32
○ 2026-03-25 16:31:54
○NSatt.isc-sns.net2015-07-08 → 2015-07-08 · 3 obs
● 2015-07-08 07:09:02
○ 2015-09-18 22:44:32
○ 2026-03-25 16:31:54
○NScbru.br.ns.els-gms.att.net2015-07-08 → 2018-06-15 · 4 obs
● 2015-07-08 07:09:02
● 2018-06-15 08:00:04
○ 2026-03-17 04:39:08
○ 2026-03-25 16:31:54
○NScmtu.mt.ns.els-gms.att.net2015-07-08 → 2018-06-15 · 4 obs
● 2015-07-08 07:09:02
● 2018-06-15 08:00:04
○ 2026-03-17 04:39:08
○ 2026-03-25 16:31:54
●NSdns1.p03.nsone.net2026-03-17 → 2026-03-25 · 3 obs
○ 2018-06-15 08:00:04
● 2026-03-17 04:39:08
● 2026-03-25 16:31:54
●NSdns2.p03.nsone.net2026-03-17 → 2026-03-25 · 3 obs
○ 2018-06-15 08:00:04
● 2026-03-17 04:39:08
● 2026-03-25 16:31:54
●NSdns3.p03.nsone.net2026-03-17 → 2026-03-25 · 3 obs
○ 2018-06-15 08:00:04
● 2026-03-17 04:39:08
● 2026-03-25 16:31:54
●NSdns4.p03.nsone.net2026-03-17 → 2026-03-25 · 3 obs
○ 2018-06-15 08:00:04
● 2026-03-17 04:39:08
● 2026-03-25 16:31:54
●NSns01.msddns.com2026-03-17 → 2026-03-25 · 3 obs
○ 2018-06-15 08:00:04
● 2026-03-17 04:39:08
● 2026-03-25 16:31:54
●NSns02.msddns.com2026-03-17 → 2026-03-25 · 3 obs
○ 2018-06-15 08:00:04
● 2026-03-17 04:39:08
● 2026-03-25 16:31:54
●NSns03.msddns.com2026-03-17 → 2026-03-25 · 3 obs
○ 2018-06-15 08:00:04
● 2026-03-17 04:39:08
● 2026-03-25 16:31:54
●NSns04.msddns.com2026-03-17 → 2026-03-25 · 3 obs
○ 2018-06-15 08:00:04
● 2026-03-17 04:39:08
● 2026-03-25 16:31:54
○NSns6.customer.level3.net2015-07-08 → 2018-06-15 · 4 obs
● 2015-07-08 07:09:02
● 2018-06-15 08:00:04
○ 2026-03-17 04:39:08
○ 2026-03-25 16:31:54
○NSns9.customer.level3.net2015-07-08 → 2018-06-15 · 4 obs
● 2015-07-08 07:09:02
● 2018-06-15 08:00:04
○ 2026-03-17 04:39:08
○ 2026-03-25 16:31:54
○A155.91.16.1772016-11-19 → 2018-06-15 · 4 obs
● 2016-11-19 23:03:12
● 2018-06-15 08:00:04
○ 2026-03-17 04:39:08
○ 2026-03-25 16:31:54
●A166.117.53.1722026-03-17 → 2026-03-25 · 3 obs
○ 2018-06-15 08:00:04
● 2026-03-17 04:39:08
● 2026-03-25 16:31:54
●A3.33.166.1972026-03-17 → 2026-03-25 · 3 obs
○ 2018-06-15 08:00:04
● 2026-03-17 04:39:08
● 2026-03-25 16:31:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comd.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net, j.gtld-servers.net...-
mercklearning.comdns1.p03.nsone.net, dns2.p03.nsone.net, dns3.p03.nsone.net, dns4.p03.nsone.net...4 records

✅ Authoritative Response

Server:198.51.44.67

NS records: dns1.p03.nsone.net, dns2.p03.nsone.net, dns3.p03.nsone.net, dns4.p03.nsone.net, ns01.msddns.com, ns02.msddns.com, ns03.msddns.com, ns04.msddns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mercklearning.com (unsigned zone)

⏱️ Timing

Total: 303ms | Queries: -

📄 Records

TypeCountSample Data
A2166.117.53.172, 3.33.166.197
NS8dns1.p03.nsone.net, dns2.p03.nsone.net...
TXT1v=spf1 -all
SOA1dns1.p03.nsone.net hostmaster.nsone.net

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns01.msddns.com, ns02.msddns.com, ns03.msddns.com...)

Analysis

IP Addresses

mercklearning.com points to two IP numbers: 3.33.166.197 and 166.117.53.172.

Other host names such as nobivac.fr, youactpet.it, diabeticpets.co.uk, msd.co.nz and merckvetmanual.com share IP numbers with mercklearning.com.

Name Servers

mercklearning.com delegates to eight name servers: ns01.msddns.com, ns02.msddns.com, ns03.msddns.com, ns04.msddns.com, dns1.p03.nsone.net, dns2.p03.nsone.net, dns3.p03.nsone.net and dns4.p03.nsone.net.

At least part of the name servers for mercklearning.com are shared with other domains, for instance ezekieljackson.com, merckedctrials.net, neilhellegers.com, sv15.packet.net and astralpool.co.nz.

these name servers are often used together with the name servers ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com, ns04.squarespacedns.com, dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net and dns4.p01.nsone.net.

Host names with two IP numbers:

- dns1.p03.nsone.net points to: 2620:4d:4000:6259:7:3:0:1 and 198.51.44.3

- dns2.p03.nsone.net points to: 2a00:edc0:6259:7:3::2 and 198.51.45.3

- dns3.p03.nsone.net points to: 2620:4d:4000:6259:7:3:0:3 and 198.51.44.67

- dns4.p03.nsone.net points to: 2a00:edc0:6259:7:3::4 and 198.51.45.67

Host names with one IP number:

- ns01.msddns.com points to: 45.54.26.1

- ns02.msddns.com points to: 45.54.26.65

- ns03.msddns.com points to: 45.54.26.129

- ns04.msddns.com points to: 45.54.26.193