`textbook4life.com`

DNSSEC	⚠️ Not signed
A	18.221.193.232^{🇺🇸 Amazon18.220.0.0/14 EC2 CMH prefix}
		PTR	`ec2-18-221-193-232.us-east-2.compute.amazonaws.com`
NS	`ns1.rethinkyourweb.net` ⭐
		A	18.221.193.232^{🇺🇸 Amazon18.220.0.0/14 EC2 CMH prefix}
			PTR	`ec2-18-221-193-232.us-east-2.compute.amazonaws.com`
NS	`ns2.rethinkyourweb.net`
		A	3.133.253.10^{🇺🇸 Amazon3.132.0.0/14 EC2 CMH prefix}
			PTR	`ec2-3-133-253-10.us-east-2.compute.amazonaws.com`
MX	`textbook4life.com` ⭐
		A	18.221.193.232^{🇺🇸 Amazon18.220.0.0/14 EC2 CMH prefix}
			PTR	`ec2-18-221-193-232.us-east-2.compute.amazonaws.com`
SOA	`ns1.rethinkyourweb.net`rob@whiteroadgraphics.com 2026-04-05 #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=1778740121

MX for

textbook4life.com

Same first word

textbook4life.com

DNS History

10 records (4 active, 6 former)

●NSns1.rethinkyourweb.net2017-11-08 → 2026-05-14 · 3 obs

○ 2017-01-05 00:48:22
● 2017-11-08 05:50:22
● 2026-05-14 06:56:52

●NSns2.rethinkyourweb.net2017-11-08 → 2026-05-14 · 3 obs

○ 2017-01-05 00:48:22
● 2017-11-08 05:50:22
● 2026-05-14 06:56:52

○NSns5.whiteroad.biz2017-01-05 → 2017-01-05 · 3 obs

● 2017-01-05 00:48:22
○ 2017-11-08 05:50:22
○ 2026-05-14 06:56:52

○NSns6.whiteroad.biz2017-01-05 → 2017-01-05 · 3 obs

● 2017-01-05 00:48:22
○ 2017-11-08 05:50:22
○ 2026-05-14 06:56:52

○MXmx-dfw.smtp.directrouter.com2017-01-05 → 2017-01-05 · 3 obs

● 2017-01-05 00:48:22
○ 2017-11-08 05:50:22
○ 2026-05-14 06:56:52

○MXmx-lon.smtp.directrouter.com2017-01-05 → 2017-01-05 · 3 obs

● 2017-01-05 00:48:22
○ 2017-11-08 05:50:22
○ 2026-05-14 06:56:52

●MXtextbook4life.com2017-11-08 → 2026-05-14 · 3 obs

○ 2017-01-05 00:48:22
● 2017-11-08 05:50:22
● 2026-05-14 06:56:52

○A174.136.3.162017-01-05 → 2017-01-05 · 3 obs

● 2017-01-05 00:48:22
○ 2017-11-08 05:50:22
○ 2026-05-14 06:56:52

●A18.221.193.2322026-04-21 → 2026-05-14 · 3 obs

○ 2017-11-08 05:50:22
● 2026-04-21 12:22:02
● 2026-05-14 06:56:52

○A206.123.119.582017-11-08 → 2017-11-08 · 4 obs

○ 2017-01-05 00:48:22
● 2017-11-08 05:50:22
○ 2026-04-21 12:22:02
○ 2026-05-14 06:56:52

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, i.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net...	-
textbook4life.com	ns2.rethinkyourweb.net, ns1.rethinkyourweb.net	-

✅ Authoritative Response

Server:3.133.253.10

NS records: ns2.rethinkyourweb.net, ns1.rethinkyourweb.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for textbook4life.com (unsigned zone)

⏱️ Timing

Total: 180ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`18.221.193.232`
NS	2	`ns2.rethinkyourweb.net, ns1.rethinkyourweb.net`
MX	1	`textbook4life.com (pri: 10)`
SOA	1	`ns1.rethinkyourweb.net rob.whiteroadgrap`

Analysis

Mail Server Role

The mail server for textbook4life.com is textbook4life.com.

IP Addresses

textbook4life.com points to a single IP address: 18.221.193.232.

Other host names such as ramonawebsolutions.com, reachingsouls.com, gofreesandiego.net, keratin-express.com and ns1.rethinkyourweb.net share IPs with textbook4life.com.

Name Servers

Two name servers ns1.rethinkyourweb.net and ns2.rethinkyourweb.net handle the delegation for textbook4life.com.

textbook4life.com shares the same name server setup as other domains, for example revivesandiego.org, ramonawebsolutions.com, reachingsouls.com, gofreesandiego.net and keratin-express.com.

Host names with one IP number:

ns1.rethinkyourweb.net points to 18.221.193.232; ns2.rethinkyourweb.net points to 3.133.253.10.

Mail Servers

One mail server handles textbook4life.com; that server is textbook4life.com.

textbook4life.com points to a single IP number: 18.221.193.232.

textbook4life.com - robtex.com