`responsive-services.com`

DNSSEC	⚠️ Not signed
A	151.101.66.159^{🇺🇸 Fastly151.101.64.0/22}
NS	`ns49.worldnic.com` ⭐
		A	162.159.26.111^{Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-26-111.defastlink.net`
NS	`ns50.worldnic.com`
		A	162.159.27.50^{Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ip-162-159-27-50.defastlink.net`
MX	`d167873a.ess.barracudanetworks.com` ⭐
		A	209.222.82.252^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.253^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.255^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
MX	`d167873b.ess.barracudanetworks.com` ⭐
		A	209.222.82.252^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.253^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
		A	209.222.82.255^{🇺🇸 Amazon209.222.82.0/24 EC2 Prefix}
			PTR	`mail.ess.barracuda.com`
TXT	`vdpa69m6bmmj7of3940h6ctb57`
TXT	`MS=ms76873043`
TXT	`3kkcrt5focqate4k6ub1krudva`
TXT	`v=spf1 include:spf.protection.outlook.com include:barracudanetworks.com -all`
TXT	`4rig1q7acjir4qqbpfqedgmaup`
SOA	`NS49.WORLDNIC.com`namehost@WORLDNIC.com serial=125122310

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1771291435

Subdomains

imap.responsive-services.com

barracuda.responsive-services.com

Same first word

responsive-services.com

DNS History

7 records (5 active, 2 former)

●NSns49.worldnic.com2015-07-04 → 2026-03-19 · 2 obs

● 2015-07-04 10:57:42
● 2026-03-19 09:51:50

●NSns50.worldnic.com2015-07-04 → 2026-03-19 · 2 obs

● 2015-07-04 10:57:42
● 2026-03-19 09:51:50

○MXbarracuda.responsive-services.com2015-07-04 → 2017-02-03 · 4 obs

● 2015-07-04 10:57:42
● 2017-02-03 22:33:40
○ 2018-12-02 10:54:08
○ 2026-03-19 09:51:50

●MXd167873a.ess.barracudanetworks.com2018-12-02 → 2026-03-19 · 3 obs

○ 2017-02-03 22:33:40
● 2018-12-02 10:54:08
● 2026-03-19 09:51:50

●MXd167873b.ess.barracudanetworks.com2018-12-02 → 2026-03-19 · 3 obs

○ 2017-02-03 22:33:40
● 2018-12-02 10:54:08
● 2026-03-19 09:51:50

●A151.101.66.1592026-03-02 → 2026-03-19 · 3 obs

○ 2018-12-02 10:54:08
● 2026-03-02 11:54:30
● 2026-03-19 09:51:50

○A64.13.192.2472015-07-04 → 2018-12-02 · 4 obs

● 2015-07-04 10:57:42
● 2018-12-02 10:54:08
○ 2026-03-02 11:54:30
○ 2026-03-19 09:51:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, i.gtld-servers.net, h.gtld-servers.net, k.gtld-servers.net...	-
responsive-services.com	ns49.worldnic.com, ns50.worldnic.com	2 records

✅ Authoritative Response

Server: 162.159.27.50

NS records: ns49.worldnic.com, ns50.worldnic.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 522ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`151.101.66.159`
MX	2	`d167873a.ess.barracudanetworks.com (pri:, d167873b.ess.barracudanetworks.com (pri:`
TXT	5	`vdpa69m6bmmj7of3940h6ctb57, MS=ms76873043...`
SOA	1	`NS49.WORLDNIC.com namehost.WORLDNIC.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns49.worldnic.com, ns50.worldnic.com)

Analysis

Hierarchy

responsive-services.com is a parent of imap.responsive-services.com and barracuda.responsive-services.com.

IP Addresses

responsive-services.com points to a single IP number: 151.101.66.159.

Other host names, for instance parkwoodliving.com, webb.edu, integritycondomanagement.ca, privatecaplending.com and lbas.org share IP numbers with responsive-services.com.

Name Servers

responsive-services.com is delegated to two name servers: ns49.worldnic.com and ns50.worldnic.com.

responsive-services.com uses the same name server setup as other domains, for instance a-best.net, hllyonsco.com, dianeweller.com, ndryden.com and calplastics.com.