merckmd.com - robtex.com

merckmd.com

DNSSEC⚠️ Not signed
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 ⚠️ Not in parent delegation
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 ⚠️ Not in parent delegation
A45.54.26.193🇺🇸 NETACTUATE45.54.26.0/24 NetActuate, Inc
PTRns04.msddns.com
TXTv=spf1 -all
SOAdns1.p03.nsone.nethostmaster@nsone.net serial=1743015188

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=1782261420
WOT: SAFE (90/100)

Same first word

merckmd.com

DNS History

16 records (8 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.netA155.91.16.170
○NSatt.isc-sns.com2015-06-06 → 2015-06-06 · 3 obs
● 2015-06-06 23:38:10
○ 2015-10-27 00:45:40
○ 2026-06-24 00:57:42
○NSatt.isc-sns.info2015-06-06 → 2015-06-06 · 3 obs
● 2015-06-06 23:38:10
○ 2015-10-27 00:45:40
○ 2026-06-24 00:57:42
○NSatt.isc-sns.net2015-06-06 → 2015-06-06 · 3 obs
● 2015-06-06 23:38:10
○ 2015-10-27 00:45:40
○ 2026-06-24 00:57:42
○NScbru.br.ns.els-gms.att.net2015-06-06 → 2018-10-02 · 4 obs
● 2015-06-06 23:38:10
● 2018-10-02 07:32:26
○ 2026-03-17 04:47:32
○ 2026-06-24 00:57:42
○NScmtu.mt.ns.els-gms.att.net2015-06-06 → 2018-10-02 · 4 obs
● 2015-06-06 23:38:10
● 2018-10-02 07:32:26
○ 2026-03-17 04:47:32
○ 2026-06-24 00:57:42
●NSdns1.p03.nsone.net2026-03-17 → 2026-06-24 · 3 obs
○ 2018-10-02 07:32:26
● 2026-03-17 04:47:32
● 2026-06-24 00:57:42
●NSdns2.p03.nsone.net2026-03-17 → 2026-06-24 · 3 obs
○ 2018-10-02 07:32:26
● 2026-03-17 04:47:32
● 2026-06-24 00:57:42
●NSdns3.p03.nsone.net2026-03-17 → 2026-06-24 · 3 obs
○ 2018-10-02 07:32:26
● 2026-03-17 04:47:32
● 2026-06-24 00:57:42
●NSdns4.p03.nsone.net2026-03-17 → 2026-06-24 · 3 obs
○ 2018-10-02 07:32:26
● 2026-03-17 04:47:32
● 2026-06-24 00:57:42
●NSns01.msddns.com2026-03-17 → 2026-06-24 · 3 obs
○ 2018-10-02 07:32:26
● 2026-03-17 04:47:32
● 2026-06-24 00:57:42
●NSns02.msddns.com2026-03-17 → 2026-06-24 · 3 obs
○ 2018-10-02 07:32:26
● 2026-03-17 04:47:32
● 2026-06-24 00:57:42
●NSns03.msddns.com2026-03-17 → 2026-06-24 · 3 obs
○ 2018-10-02 07:32:26
● 2026-03-17 04:47:32
● 2026-06-24 00:57:42
●NSns04.msddns.com2026-03-17 → 2026-06-24 · 3 obs
○ 2018-10-02 07:32:26
● 2026-03-17 04:47:32
● 2026-06-24 00:57:42
○NSns6.customer.level3.net2015-06-06 → 2018-10-02 · 4 obs
● 2015-06-06 23:38:10
● 2018-10-02 07:32:26
○ 2026-03-17 04:47:32
○ 2026-06-24 00:57:42
○NSns9.customer.level3.net2015-06-06 → 2018-10-02 · 4 obs
● 2015-06-06 23:38:10
● 2018-10-02 07:32:26
○ 2026-03-17 04:47:32
○ 2026-06-24 00:57:42
○A155.91.16.1702015-06-06 → 2018-10-02 · 4 obs
● 2015-06-06 23:38:10
● 2018-10-02 07:32:26
○ 2026-03-17 04:47:32
○ 2026-06-24 00:57:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, a.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net...-
merckmd.comdns1.p03.nsone.net, dns2.p03.nsone.net, dns3.p03.nsone.net, ns01.msddns.com...3 records

✅ Authoritative Response

Server:198.51.44.3

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for merckmd.com (unsigned zone)

⏱️ Timing

Total: 918ms | Queries: -

📄 Records

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

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns01.msddns.com, ns02.msddns.com, ns03.msddns.com)

Analysis

Name Servers

merckmd.com carries NS records listing 8 name servers — ns01.msddns.com, ns02.msddns.com, ns03.msddns.com and 5 others.

There is at least partial name server overlap between merckmd.com and other domains — vibeplus.com, funadesign.com, newknickssg.com and two more among them.

These name servers regularly appear alongside dns2.p03.nsone.net, dns1.p03.nsone.net, dns3.p03.nsone.net and 7 other name servers in NS record sets.

Host names pointing to two IP addresses:

The A records for dns1.p03.nsone.net return 198.51.44.3 and 2620:4d:4000:6259:7:3:0:1.

The A records for dns2.p03.nsone.net return 198.51.45.3 and 2a00:edc0:6259:7:3::2.

The A records for dns3.p03.nsone.net return 198.51.44.67 and 2620:4d:4000:6259:7:3:0:3.

The A records for dns4.p03.nsone.net return 198.51.45.67 and 2a00:edc0:6259:7:3::4.

Host names resolving to a single IP address:

ns01.msddns.com resolves to the IP address 45.54.26.1.

ns02.msddns.com resolves to the IP address 45.54.26.65.

ns03.msddns.com resolves to the IP address 45.54.26.129.

ns04.msddns.com resolves to the IP address 45.54.26.193.