`substancebooks.com`

DNSSEC	⚠️ Not signed
A	51.222.206.91^{🇨🇦 OVH51.222.0.0/16 Hosting route}
		PTR	`srv2.mexxus.com`
NS	`ns20.mexxus.com` ⭐
		A	216.128.185.107^{🇨🇦 AS-VULTR216.128.176.0/20 Vultr Assigned Prefix}
			PTR	`216-128-185-107.choopa.net`
NS	`ns21.mexxus.com`
		A	140.82.17.168^{🇺🇸 AS-VULTR140.82.16.0/21 Vultr Assigned Prefix}
			PTR	`140.82.17.168.vultrusercontent.com`
NS	`ns22.mexxus.com`
		A	207.246.72.89^{🇺🇸 AS-VULTR207.246.64.0/20 Vultr Assigned Prefix}
			PTR	`ns22.mexxus.com`
MX	`substancebooks.com` ⭐
		A	51.222.206.91^{🇨🇦 OVH51.222.0.0/16 Hosting route}
			PTR	`srv2.mexxus.com`
TXT	`v=spf1 a mx ip4:51.222.206.91 ~all`
SOA	`ns20.mexxus.com`admin@canspace.ca 2026-04-13 #2

`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=1777423486

WOT: SAFE (64/100)

MX for

substancebooks.com

Subdomains

mail.substancebooks.com

Same first word

substancebooks.com

DNS History

10 records (5 active, 5 former)

○NSns1.mexxus.com2015-06-26 → 2017-06-14 · 4 obs

● 2015-06-26 00:42:00
● 2017-06-14 17:20:52
○ 2026-04-15 08:45:18
○ 2026-04-29 00:54:06

○NSns2.mexxus.com2015-06-26 → 2017-06-14 · 4 obs

● 2015-06-26 00:42:00
● 2017-06-14 17:20:52
○ 2026-04-15 08:45:18
○ 2026-04-29 00:54:06

●NSns20.mexxus.com2026-04-15 → 2026-04-29 · 3 obs

○ 2017-06-14 17:20:52
● 2026-04-15 08:45:18
● 2026-04-29 00:54:06

●NSns21.mexxus.com2026-04-15 → 2026-04-29 · 3 obs

○ 2017-06-14 17:20:52
● 2026-04-15 08:45:18
● 2026-04-29 00:54:06

●NSns22.mexxus.com2026-04-15 → 2026-04-29 · 3 obs

○ 2017-06-14 17:20:52
● 2026-04-15 08:45:18
● 2026-04-29 00:54:06

○MXmail.substancebooks.com2015-06-26 → 2017-06-14 · 4 obs

● 2015-06-26 00:42:00
● 2017-06-14 17:20:52
○ 2026-04-15 08:45:18
○ 2026-04-29 00:54:06

●MXsubstancebooks.com2026-04-15 → 2026-04-29 · 3 obs

○ 2017-06-14 17:20:52
● 2026-04-15 08:45:18
● 2026-04-29 00:54:06

○A192.199.243.342015-06-26 → 2016-01-19 · 4 obs

● 2015-06-26 00:42:00
● 2016-01-19 03:56:20
○ 2016-04-05 17:31:42
○ 2026-04-29 00:54:06

●A51.222.206.912026-04-15 → 2026-04-29 · 3 obs

○ 2017-06-14 17:20:52
● 2026-04-15 08:45:18
● 2026-04-29 00:54:06

○A68.71.144.52016-04-05 → 2017-06-14 · 5 obs

○ 2016-01-19 03:56:20
● 2016-04-05 17:31:42
● 2017-06-14 17:20:52
○ 2026-04-15 08:45:18
○ 2026-04-29 00:54:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, k.gtld-servers.net, f.gtld-servers.net, e.gtld-servers.net...	-
substancebooks.com	ns20.mexxus.com, ns21.mexxus.com, ns22.mexxus.com	3 records

✅ Authoritative Response

Server:207.246.72.89

NS records: ns20.mexxus.com, ns21.mexxus.com, ns22.mexxus.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for substancebooks.com (unsigned zone)

⏱️ Timing

Total: 954ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`51.222.206.91`
NS	3	`ns22.mexxus.com, ns20.mexxus.com...`
MX	1	`substancebooks.com (pri: 0)`
TXT	1	`v=spf1 a mx ip4:51.222.206.91 ~all`
SOA	1	`ns20.mexxus.com admin.canspace.ca`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns20.mexxus.com, ns21.mexxus.com, ns22.mexxus.com)

Analysis

Hierarchy

mail.substancebooks.com has substancebooks.com as its parent.

Mail Server Role

The mail server for substancebooks.com is substancebooks.com.

IP Addresses

substancebooks.com maps to IP address 51.222.206.91.

Other host names, for example srv2.mexxus.com, fibrecom.ca and sweetstorystudios.com share the same IP as substancebooks.com.

Name Servers

substancebooks.com is delegated to name servers ns20.mexxus.com, ns21.mexxus.com and ns22.mexxus.com.

substancebooks.com at least partially shares name servers with other domains such as quebecquickloans.com, lithosol.com, thermo-trap.net, ikosupport.com and formath.net.

Host names with a single IP:

ns20.mexxus.com points to 216.128.185.107

ns21.mexxus.com points to 140.82.17.168

ns22.mexxus.com points to 207.246.72.89

Mail Servers

One mail server serves substancebooks.com.

substancebooks.com points to one IP number: 51.222.206.91.

substancebooks.com - robtex.com