`ibmdeveloperworks.mkt6741.com`

DNSSEC	⚠️ Not signed
A	34.198.163.192^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
		PTR	`ec2-34-198-163-192.compute-1.amazonaws.com`
A	174.129.214.57^{🇺🇸 Amazon174.129.0.0/16 Execution Services}
MX	`reply.ibmdeveloperworks.mkt6741.com` ⭐
		A	34.235.188.56^{🇺🇸 Amazon34.224.0.0/12 EC2 Region prefix}
			PTR	`ec2-34-235-188-56.compute-1.amazonaws.com`
MX	`mail6142.ibmdeveloperworks.mkt6741.com`⁽²⁰⁾
		A	74.121.51.112^{🇺🇸 Amazon74.121.51.0/24 EC2 Prefix}
			PTR	`mail6142.ibmdeveloper.mkt6741.com`
TXT	`v=spf1 ip4:74.121.51.112 -all`

`mkt6741.com`

	DNSSEC	⚠️ Not signed
	A	34.198.163.192^{🇺🇸 Amazon34.192.0.0/12 EC2 IAD prefix}
	A	174.129.214.57^{🇺🇸 Amazon174.129.0.0/16 Execution Services}
	NS	`ns1.acoustic-adm.com` ⭐
	NS	`ns2.acoustic-adm.com`
	NS	`ns3.acoustic-adm.com`
	NS	`ns4.acoustic-adm.com`
	MX	`reply.mkt6741.com` ⭐
	MX	`mail6142.mkt6741.com`⁽²⁰⁾
	TXT	`v=spf1 ip4:74.121.51.112 -all`
	SOA	`ns1.acoustic-adm.com`awsdns-hostmaster@amazon.com serial=1

Subdomains

reply.ibmdeveloperworks.mkt6741.com

mail6142.ibmdeveloperworks.mkt6741.com

bounce.ibmdeveloperworks.mkt6741.com

DNS History

14 records (4 active, 10 former)

○NSns1.p11.dynect.net2015-07-05 → 2026-02-15 · 4 obs

● 2015-07-05 19:23:34
● 2026-02-15 12:40:32
○ 2026-02-19 07:14:38
○ 2026-04-11 20:32:00

○NSns1.silverpop.com2015-07-05 → 2026-02-15 · 4 obs

● 2015-07-05 19:23:34
● 2026-02-15 12:40:32
○ 2026-02-19 07:14:38
○ 2026-04-11 20:32:00

○NSns2.p11.dynect.net2015-07-05 → 2026-02-15 · 4 obs

● 2015-07-05 19:23:34
● 2026-02-15 12:40:32
○ 2026-02-19 07:14:38
○ 2026-04-11 20:32:00

○NSns2.silverpop.com2015-07-05 → 2026-02-15 · 4 obs

● 2015-07-05 19:23:34
● 2026-02-15 12:40:32
○ 2026-02-19 07:14:38
○ 2026-04-11 20:32:00

○NSns3.p11.dynect.net2015-07-05 → 2026-02-15 · 4 obs

● 2015-07-05 19:23:34
● 2026-02-15 12:40:32
○ 2026-02-19 07:14:38
○ 2026-04-11 20:32:00

○NSns3.silverpop.com2015-07-05 → 2026-02-15 · 4 obs

● 2015-07-05 19:23:34
● 2026-02-15 12:40:32
○ 2026-02-19 07:14:38
○ 2026-04-11 20:32:00

○NSns4.p11.dynect.net2015-07-05 → 2026-02-15 · 4 obs

● 2015-07-05 19:23:34
● 2026-02-15 12:40:32
○ 2026-02-19 07:14:38
○ 2026-04-11 20:32:00

●MXmail6142.ibmdeveloperworks.mkt6741.com2015-07-05 → 2026-04-11 · 2 obs

● 2015-07-05 19:23:34
● 2026-04-11 20:32:00

●MXreply.ibmdeveloperworks.mkt6741.com2015-07-05 → 2026-04-11 · 2 obs

● 2015-07-05 19:23:34
● 2026-04-11 20:32:00

●A174.129.214.572026-04-11 → 2026-04-11 · 3 obs

○ 2026-02-19 18:26:04
● 2026-04-11 20:31:58
● 2026-04-11 20:32:00

○A3.90.125.32026-02-15 → 2026-02-19 · 5 obs

○ 2018-10-12 17:51:58
● 2026-02-15 12:40:32
● 2026-02-19 18:26:04
○ 2026-04-11 20:31:58
○ 2026-04-11 20:32:00

●A34.198.163.1922026-04-11 → 2026-04-11 · 3 obs

○ 2026-02-19 18:26:04
● 2026-04-11 20:31:58
● 2026-04-11 20:32:00

○A54.156.79.1752026-02-15 → 2026-02-19 · 5 obs

○ 2018-10-12 17:51:58
● 2026-02-15 12:40:32
● 2026-02-19 18:26:04
○ 2026-04-11 20:31:58
○ 2026-04-11 20:32:00

○A74.121.50.172015-07-05 → 2018-10-12 · 4 obs

● 2015-07-05 19:23:34
● 2018-10-12 17:51:58
○ 2026-02-15 12:40:32
○ 2026-04-11 20:32:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	g.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net...	-
mkt6741.com	ns1.acoustic-adm.com, ns2.acoustic-adm.com, ns3.acoustic-adm.com, ns4.acoustic-adm.com	8 records

✅ Authoritative Response

Server:205.251.197.17

NS records: ns1.acoustic-adm.com, ns2.acoustic-adm.com, ns3.acoustic-adm.com, ns4.acoustic-adm.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mkt6741.com (unsigned zone)

⏱️ Timing

Total: 295ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`34.198.163.192, 174.129.214.57`
MX	2	`reply.ibmdeveloperworks.mkt6741.com (pri, mail6142.ibmdeveloperworks.mkt6741.com (`
TXT	1	`v=spf1 ip4:74.121.51.112 -all`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns1.acoustic-adm.com, ns1.acoustic-adm.com, ns2.acoustic-adm.com...)

Analysis

Hierarchy

The parent of reply.ibmdeveloperworks.mkt6741.com, mail6142.ibmdeveloperworks.mkt6741.com and bounce.ibmdeveloperworks.mkt6741.com is ibmdeveloperworks.mkt6741.com.

IP Addresses

Two IP numbers are pointed to by ibmdeveloperworks.mkt6741.com: 34.198.163.192 and 174.129.214.57.

other host names include mkt4955.com, hitentertainment.mkt6412.com, mkt10549.com, mkt7620.com and mta3613.mkt11296.com; they share IP numbers with ibmdeveloperworks.mkt6741.com.

Mail Servers

ibmdeveloperworks.mkt6741.com is handled by two mail servers: mail6142.ibmdeveloperworks.mkt6741.com and reply.ibmdeveloperworks.mkt6741.com.

ibmdeveloperworks.mkt6741.com shares at least some mail servers with other domains, including mail6142.ibmdeveloperworks.mkt6741.com and reply.ibmdeveloperworks.mkt6741.com.

Host names with one IP:

mail6142.ibmdeveloperworks.mkt6741.com points to: 74.121.51.112

reply.ibmdeveloperworks.mkt6741.com points to: 34.235.188.56

ibmdeveloperworks.mkt6741.com - robtex.com