`21stservices.com`

DNSSEC	⚠️ Not signed
A	146.88.104.175^{🇺🇸 RACKSPACE-DFW146.88.104.0/22 Armor}
NS	`ns1.markmonitor.com` ⭐
		A	2620:10a:80a8::1^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.1^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
			PTR	`ip-149-112-160-1.defastlink.net`
NS	`ns2.markmonitor.com`
		A	2001:67c:10b8::1^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.markmonitor.com`
		A	176.97.158.1^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.markmonitor.com`
NS	`ns3.markmonitor.com`
		A	2620:10a:80a9::1^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.1^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
			PTR	`ip-149-112-161-1.defastlink.net`
NS	`ns4.markmonitor.com`
		A	2001:67c:1bc::1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.markmonitor.com`
		A	192.174.68.1^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ns1.markmonitor.com`
NS	`ns5.markmonitor.com`
		A	2620:10a:80a8::2^{🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.160.2^{🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
			PTR	`ip-149-112-160-2.defastlink.net`
NS	`ns6.markmonitor.com`
		A	2001:67c:10b8::3^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns6.markmonitor.com`
		A	176.97.158.3^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns6.markmonitor.com`
NS	`ns7.markmonitor.com`
		A	2620:10a:80a9::2^{🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
		A	149.112.161.2^{🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada}
			PTR	`ip-149-112-161-2.defastlink.net`
MX	`us-smtp-inbound-1.mimecast.com` ⭐
		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` ⭐
		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	`0ed1fe018adbc087d590334346a7a3b8`
TXT	`google-site-verification=SQFzyIOnYxgzOGiB6nkpeqZk-uUBh5UUx1A6-D2f_4A`
TXT	`v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com ...`
SOA	`ns1.markmonitor.com`hostmaster@markmonitor.com 2026-03-12 #1

`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

WOT: UNKNOWN (60/100)

PTR for

126.196.104.38.in-addr.arpa

Subdomains

vpn.21stservices.com

Same first word

21stservices.com

DNS History

14 records (10 active, 4 former)

●NSns1.markmonitor.com2026-03-15 → 2026-03-15 · 3 obs

○ 2017-08-30 07:56:22
● 2026-03-15 06:04:12
● 2026-03-15 06:04:14

●NSns2.markmonitor.com2026-03-15 → 2026-03-15 · 3 obs

○ 2017-08-30 07:56:22
● 2026-03-15 06:04:12
● 2026-03-15 06:04:14

●NSns3.markmonitor.com2026-03-15 → 2026-03-15 · 3 obs

○ 2017-08-30 07:56:22
● 2026-03-15 06:04:12
● 2026-03-15 06:04:14

○NSns37.worldnic.com2015-08-21 → 2017-08-30 · 4 obs

● 2015-08-21 01:54:58
● 2017-08-30 07:56:22
○ 2026-03-15 06:04:12
○ 2026-03-15 06:04:14

○NSns38.worldnic.com2015-08-21 → 2017-08-30 · 4 obs

● 2015-08-21 01:54:58
● 2017-08-30 07:56:22
○ 2026-03-15 06:04:12
○ 2026-03-15 06:04:14

●NSns4.markmonitor.com2026-03-15 → 2026-03-15 · 3 obs

○ 2017-08-30 07:56:22
● 2026-03-15 06:04:12
● 2026-03-15 06:04:14

●NSns5.markmonitor.com2026-03-15 → 2026-03-15 · 3 obs

○ 2017-08-30 07:56:22
● 2026-03-15 06:04:12
● 2026-03-15 06:04:14

●NSns6.markmonitor.com2026-03-15 → 2026-03-15 · 3 obs

○ 2017-08-30 07:56:22
● 2026-03-15 06:04:12
● 2026-03-15 06:04:14

●NSns7.markmonitor.com2026-03-15 → 2026-03-15 · 3 obs

○ 2017-08-30 07:56:22
● 2026-03-15 06:04:12
● 2026-03-15 06:04:14

○MX21stservices-com.mail.eo.outlook.com2015-08-21 → 2017-08-30 · 4 obs

● 2015-08-21 01:54:58
● 2017-08-30 07:56:22
○ 2026-03-15 06:04:12
○ 2026-03-15 06:04:14

●MXus-smtp-inbound-1.mimecast.com2026-03-15 → 2026-03-15 · 3 obs

○ 2017-08-30 07:56:22
● 2026-03-15 06:04:12
● 2026-03-15 06:04:14

●MXus-smtp-inbound-2.mimecast.com2026-03-15 → 2026-03-15 · 3 obs

○ 2017-08-30 07:56:22
● 2026-03-15 06:04:12
● 2026-03-15 06:04:14

●A146.88.104.1752026-03-15 → 2026-03-15 · 3 obs

○ 2017-08-30 07:56:22
● 2026-03-15 06:04:12
● 2026-03-15 06:04:14

○A162.218.139.1342015-08-21 → 2017-08-30 · 4 obs

● 2015-08-21 01:54:58
● 2017-08-30 07:56:22
○ 2026-03-15 06:04:12
○ 2026-03-15 06:04:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
21stservices.com	ns1.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com...	14 records

✅ Authoritative Response

Server: 192.174.68.1

NS records: ns1.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com, ns2.markmonitor.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 21stservices.com (unsigned zone)

⏱️ Timing

Total: 308ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`146.88.104.175`
NS	7	`ns6.markmonitor.com, ns1.markmonitor.com...`
MX	2	`us-smtp-inbound-1.mimecast.com (pri: 10), us-smtp-inbound-2.mimecast.com (pri: 10)`
TXT	3	`0ed1fe018adbc087d590334346a7a3b8, google-site-verification=SQFzyIOnYxgzOGi...`
SOA	1	`ns1.markmonitor.com hostmaster.markmonit`

📌 Glue Records Collected

Total: 14

Out-of-bailiwick: 14 (ns1.markmonitor.com, ns1.markmonitor.com, ns3.markmonitor.com...)

Analysis

Hierarchy

The parent of vpn.21stservices.com is 21stservices.com.

IP Addresses

21stservices.com points to IP number: 146.88.104.175.

Other host names, for instance vpn.21stservices.com share IP numbers with 21stservices.com.

Name Servers

21stservices.com is delegated to seven name servers: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com, ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com.

21stservices.com at least partially shares name servers with other domains, for instance exness.church, myterapeak.com, bait.us, mycaesarsclarity.com and atwellsuites.bg.

Two IP numbers per host:

ns1.markmonitor.com points to: 2620:10a:80a8::1 and 149.112.160.1.

ns2.markmonitor.com points to: 2001:67c:10b8::1 and 176.97.158.1.

ns3.markmonitor.com points to: 2620:10a:80a9::1 and 149.112.161.1.

ns4.markmonitor.com points to: 2001:67c:1bc::1 and 192.174.68.1.

ns5.markmonitor.com points to: 2620:10a:80a8::2 and 149.112.160.2.

ns6.markmonitor.com points to: 2001:67c:10b8::3 and 176.97.158.3.

ns7.markmonitor.com points to: 2620:10a:80a9::2 and 149.112.161.2.

Mail Servers

21stservices.com is handled by two mail servers: us-smtp-inbound-1.mimecast.com and us-smtp-inbound-2.mimecast.com.

The mail server setup for 21stservices.com matches that of other domains, for instance avisyn.com, cattlelog.com, redislabs.com, all-phasetc.com and co-mortgage.com.

21stservices.com shares some mail servers with other domains, at least partially, for example investorscommunitybank.com, unisearch.com, hungary.hp.com and pole-house.com.