springgroup.com - dns.ninja

`springgroup.com`

DNSSEC	⚠️ Not signed
A	35.225.126.146^{🇺🇸 Google35.225.112.0/20}
		PTR	`146.126.225.35.bc.googleusercontent.com`
NS	`ns11.constellix.com` ⭐
		A	2600:180a:1001::1^{🇺🇸 Tiggee2600:180a:1001::/48 Constellix anycast network}
			PTR	`ns11.constellix.com`
		A	96.45.80.1^{🇺🇸 Tiggee96.45.80.0/24 route 96.45.80.0/24}
			PTR	`ns11.constellix.com`
NS	`ns21.constellix.com`
		A	2600:180b:2001::1^{🇺🇸 Tiggee2600:180b:2001::/48 Constellix anycast network}
			PTR	`ns21.constellix.com`
		A	46.31.236.1^{🇺🇸 Tiggee46.31.236.0/24 route 46.31.236.0/24}
			PTR	`ns21.constellix.com`
NS	`ns31.constellix.com`
		A	2600:180c:3001::1^{🇺🇸 Tiggee2600:180c:3001::/48 Constellix anycast network}
			PTR	`ns31.constellix.com`
		A	43.247.170.1^{🇯🇵 Tiggee43.247.170.0/24 route 43.247.170.0/24}
			PTR	`ns31.constellix.com`
NS	`ns41.constellix.net`
		A	2600:180a:4001::1^{🇺🇸 Tiggee2600:180a:4001::/48 Constellix anycast network}
			PTR	`ns41.constellix.net`
		A	96.45.81.1^{🇺🇸 Tiggee96.45.81.0/24 route 96.45.81.0/24}
			PTR	`ns41.constellix.net`
NS	`ns51.constellix.net`
		A	2600:180b:5001::1^{🇺🇸 Tiggee2600:180b:5001::/48 Constellix anycast network}
			PTR	`ns51.constellix.net`
		A	46.31.237.1^{🇺🇸 Tiggee46.31.237.0/24 route 46.31.237.0/24}
			PTR	`ns51.constellix.net`
NS	`ns61.constellix.net`
		A	2600:180c:6001::1^{🇺🇸 Tiggee2600:180c:6001::/48 Constellix anycast network}
			PTR	`ns61.constellix.net`
		A	43.247.171.1^{🇯🇵 Tiggee43.247.171.0/24 route 43.247.171.0/24}
			PTR	`ns61.constellix.net`
MX	`springgroup-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c91d::b^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-mw2pr02cu00603.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::6^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch5pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:f908::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bn1pr21cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:f90f::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sa9pr04cu00201.inbound.protection.outlook.com`
		A	52.101.9.24^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr02cu00400.inbound.protection.outlook.com`
		A	52.101.11.17^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sn1pr0501cu00301.inbound.protection.outlook.com`
		A	52.101.42.14^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-mw2pr04cu00106.inbound.protection.outlook.com`
		A	52.101.194.12^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch0pr04cu00504.inbound.protection.outlook.com`
MX	`us-smtp-inbound-1.mimecast.com`⁽¹⁰⁾
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
MX	`us-smtp-inbound-2.mimecast.com`⁽¹⁰⁾
		A	170.10.128.141^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.221^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.128.242^{🇺🇸 Mimecast-NA170.10.128.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.141^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.221^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
		A	170.10.132.242^{🇺🇸 Mimecast-NA170.10.132.0/23 191 Spring St Lexington MA 02421 United States}
			PTR	`us-smtp-inbound-1.mimecast.com`
			PTR	`us-smtp-inbound-2.mimecast.com`
TXT	`0ed1fe018aebb8823342e241daa1d7d1`
TXT	`3th9a(0x74313735)dld69q9fop5i4bq9o`
TXT	`MS=ms10745569`
TXT	`knowbe4-site-verification=18c8a782c4743cdbca917d68befcc034`
TXT	`v=spf1 mx include:spf.protection.outlook.com include:us._netblocks.mimecast.c...`
TXT	`pardot_147001_*=2831ff8d31eeabbef8e61919f0a571fdaaba662bf789e1fccf64ceeab8e1fb29`
TXT	`sending_domain147001=700ec62d9ae7f39df81d06166dde1529d38da29e6a78142762b15276...`
SOA	`ns11.constellix.com`dns@constellix.com 2015-01-01 #19

`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=1783186626

Subdomains

vip.springgroup.com

Same first word

springgroup.com

springgroup.net

springgroup.cn

springgroup.co.uk

DNS History

19 records (10 active, 9 former)

○NSns1.mydyndns.org2015-08-06 → 2016-12-15 · 4 obs

● 2015-08-06 02:31:40
● 2016-12-15 11:32:08
○ 2026-03-21 08:38:04
○ 2026-07-04 17:42:18

●NSns11.constellix.com2026-03-21 → 2026-07-04 · 3 obs

○ 2016-12-15 11:32:08
● 2026-03-21 08:38:04
● 2026-07-04 17:42:18

○NSns1182.dns.dyn.com2015-08-06 → 2016-12-15 · 4 obs

● 2015-08-06 02:31:40
● 2016-12-15 11:32:08
○ 2026-03-21 08:38:04
○ 2026-07-04 17:42:18

●NSns21.constellix.com2026-03-21 → 2026-07-04 · 3 obs

○ 2016-12-15 11:32:08
● 2026-03-21 08:38:04
● 2026-07-04 17:42:18

○NSns2160.dns.dyn.com2015-08-06 → 2016-12-15 · 4 obs

● 2015-08-06 02:31:40
● 2016-12-15 11:32:08
○ 2026-03-21 08:38:04
○ 2026-07-04 17:42:18

●NSns31.constellix.com2026-03-21 → 2026-07-04 · 3 obs

○ 2016-12-15 11:32:08
● 2026-03-21 08:38:04
● 2026-07-04 17:42:18

○NSns3134.dns.dyn.com2015-08-06 → 2016-12-15 · 4 obs

● 2015-08-06 02:31:40
● 2016-12-15 11:32:08
○ 2026-03-21 08:38:04
○ 2026-07-04 17:42:18

●NSns41.constellix.net2026-03-21 → 2026-07-04 · 3 obs

○ 2016-12-15 11:32:08
● 2026-03-21 08:38:04
● 2026-07-04 17:42:18

○NSns4172.dns.dyn.com2015-08-06 → 2016-12-15 · 4 obs

● 2015-08-06 02:31:40
● 2016-12-15 11:32:08
○ 2026-03-21 08:38:04
○ 2026-07-04 17:42:18

●NSns51.constellix.net2026-03-21 → 2026-07-04 · 3 obs

○ 2016-12-15 11:32:08
● 2026-03-21 08:38:04
● 2026-07-04 17:42:18

●NSns61.constellix.net2026-03-21 → 2026-07-04 · 3 obs

○ 2016-12-15 11:32:08
● 2026-03-21 08:38:04
● 2026-07-04 17:42:18

○MXsmtp1.corpitsol.com2015-08-06 → 2016-12-15 · 4 obs

● 2015-08-06 02:31:40
● 2016-12-15 11:32:08
○ 2026-03-21 08:38:04
○ 2026-07-04 17:42:18

○MXsmtp2.corpitsol.com2015-08-06 → 2016-12-15 · 4 obs

● 2015-08-06 02:31:40
● 2016-12-15 11:32:08
○ 2026-03-21 08:38:04
○ 2026-07-04 17:42:18

○MXsmtp3.corpitsol.com2015-08-06 → 2016-12-15 · 4 obs

● 2015-08-06 02:31:40
● 2016-12-15 11:32:08
○ 2026-03-21 08:38:04
○ 2026-07-04 17:42:18

●MXspringgroup-com.mail.protection.outlook.com2026-03-21 → 2026-07-04 · 3 obs

○ 2016-12-15 11:32:08
● 2026-03-21 08:38:04
● 2026-07-04 17:42:18

●MXus-smtp-inbound-1.mimecast.com2026-03-21 → 2026-07-04 · 3 obs

○ 2016-12-15 11:32:08
● 2026-03-21 08:38:04
● 2026-07-04 17:42:18

●MXus-smtp-inbound-2.mimecast.com2026-03-21 → 2026-07-04 · 3 obs

○ 2016-12-15 11:32:08
● 2026-03-21 08:38:04
● 2026-07-04 17:42:18

●A35.225.126.1462026-03-21 → 2026-07-04 · 3 obs

○ 2016-12-15 11:32:08
● 2026-03-21 08:38:04
● 2026-07-04 17:42:18

○A69.36.179.2272015-08-06 → 2016-12-15 · 4 obs

● 2015-08-06 02:31:40
● 2016-12-15 11:32:08
○ 2026-03-21 08:38:04
○ 2026-07-04 17:42:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
springgroup.com	ns11.constellix.com, ns51.constellix.net, ns41.constellix.net, ns21.constellix.com...	6 records

✅ Authoritative Response

Server:46.31.236.1

NS records: ns11.constellix.com, ns51.constellix.net, ns41.constellix.net, ns21.constellix.com, ns61.constellix.net, ns31.constellix.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for springgroup.com (unsigned zone)

⏱️ Timing

Total: 632ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`35.225.126.146`
NS	6	`ns41.constellix.net, ns51.constellix.net...`
MX	3	`us-smtp-inbound-1.mimecast.com (pri: 10), us-smtp-inbound-2.mimecast.com (pri: 10)...`
TXT	7	`0ed1fe018aebb8823342e241daa1d7d1, 3th9a(0x74313735)dld69q9fop5i4bq9o...`
SOA	1	`ns11.constellix.com dns.constellix.com`

📌 Glue Records Collected

Total: 6

Out-of-bailiwick: 6 (ns11.constellix.com, ns11.constellix.com, ns21.constellix.com...)

Analysis

Hierarchy

vip.springgroup.com is a subdomain of springgroup.com.

IP Addresses

springgroup.com resolves to just one IP address, 35.225.126.146.

Two other host names, along with retratraining.com, andreavahl.com and fbadvertisingsecrets.com, also share IP numbers with springgroup.com.

Name Servers

The DNS delegation for springgroup.com covers 6 name servers: ns11.constellix.com, ns21.constellix.com, ns31.constellix.com and 3 more.

The name servers of springgroup.com overlap at least partially with those of other domains — among them teenboys.com, na8g.com, jili9066.com and two more.

The name servers ns41.constellix.net, ns51.constellix.net and ns61.constellix.net are commonly seen alongside these name servers.

Host names that have two IP addresses:

ns11.constellix.com maps to two IP addresses — 96.45.80.1 and 2600:180a:1001::1.

ns21.constellix.com maps to two IP addresses — 46.31.236.1 and 2600:180b:2001::1.

ns31.constellix.com maps to two IP addresses — 43.247.170.1 and 2600:180c:3001::1.

ns41.constellix.net maps to two IP addresses — 96.45.81.1 and 2600:180a:4001::1.

ns51.constellix.net maps to two IP addresses — 46.31.237.1 and 2600:180b:5001::1.

ns61.constellix.net maps to two IP addresses — 43.247.171.1 and 2600:180c:6001::1.

Mail Servers

Mail for springgroup.com is routed through three mail servers — us-smtp-inbound-1.mimecast.com, us-smtp-inbound-2.mimecast.com and springgroup-com.mail.protection.outlook.com.

There is at least a partial MX overlap between springgroup.com and other domains, including iirltd.co.uk, p.jamesaltucher.com, nextrio.com and two others.

DNS names with 8 IP addresses:

springgroup-com.mail.protection.outlook.com carries IP addresses 52.101.9.24, 52.101.11.17 and 52.101.42.14, with 5 other addresses beyond those.

DNS names with 6 IP addresses:

us-smtp-inbound-1.mimecast.com carries IP addresses 170.10.128.141, 170.10.128.221 and 170.10.128.242, with 3 other addresses beyond those.

us-smtp-inbound-2.mimecast.com carries IP addresses 170.10.128.141, 170.10.128.221 and 170.10.128.242, with 3 other addresses beyond those.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.128.141 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.128.221 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.128.242 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.132.141 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.132.221 IP addresses.

These two host names — us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com — each point to 170.10.132.242 IP addresses.