`textbooks101.com`

DNSSEC	⚠️ Not signed
A	2602:ff16:2:0:1:af:0:1^{🇺🇸 HIVELOCITY-12602:ff16:2::/48 SEA1 - CID18486}
A	172.93.48.106^{🇺🇸 HIVELOCITY-1172.93.48.0/24 SEA1 - CID18486}
NS	`ns2.textbooks101.com` ⭐
		A	2602:ff16:2:0:1:af:0:1^{🇺🇸 HIVELOCITY-12602:ff16:2::/48 SEA1 - CID18486}
		A	172.93.48.106^{🇺🇸 HIVELOCITY-1172.93.48.0/24 SEA1 - CID18486}
NS	`ns1.textbooks101.com`
		A	2602:ff16:2:0:1:af:0:1^{🇺🇸 HIVELOCITY-12602:ff16:2::/48 SEA1 - CID18486}
		A	172.93.48.106^{🇺🇸 HIVELOCITY-1172.93.48.0/24 SEA1 - CID18486}
MX	`mail.textbooks101.com` ⭐
		A	2602:ff16:2:0:1:af:0:1^{🇺🇸 HIVELOCITY-12602:ff16:2::/48 SEA1 - CID18486}
		A	172.93.48.106^{🇺🇸 HIVELOCITY-1172.93.48.0/24 SEA1 - CID18486}
TXT	`v=spf1 +a +mx +a:fridaysg.com -all`
TXT	`google-site-verification=x44NXq-i-G7PaH7sN2WYYPcHjV0hLwATLqTJVD5Mg1k`
SOA	`ns2.textbooks101.com`adam\@farag.hotmail.com 2026-04-07 #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=1776205752

Subdomains

ns2.textbooks101.com

ns1.textbooks101.com

mail.textbooks101.com

Same first word

textbooks101.com

Similar names

101textbooks.com

DNS History

17 records (5 active, 12 former)

○NSdns7.register.com2015-08-10 → 2017-03-14 · 4 obs

● 2015-08-10 13:59:28
● 2017-03-14 20:12:38
○ 2020-02-14 14:52:20
○ 2026-04-14 22:46:04

○NSdns8.register.com2015-08-10 → 2017-03-14 · 4 obs

● 2015-08-10 13:59:28
● 2017-03-14 20:12:38
○ 2020-02-14 14:52:20
○ 2026-04-14 22:46:04

●NSns1.textbooks101.com2020-02-14 → 2026-04-14 · 3 obs

○ 2017-03-14 20:12:38
● 2020-02-14 14:52:20
● 2026-04-14 22:46:04

●NSns2.textbooks101.com2020-02-14 → 2026-04-14 · 3 obs

○ 2017-03-14 20:12:38
● 2020-02-14 14:52:20
● 2026-04-14 22:46:04

●MXmail.textbooks101.com2020-02-14 → 2026-04-14 · 3 obs

○ 2017-03-14 20:12:38
● 2020-02-14 14:52:20
● 2026-04-14 22:46:04

○MXmail2.siteamerica.com2015-08-10 → 2017-03-14 · 4 obs

● 2015-08-10 13:59:28
● 2017-03-14 20:12:38
○ 2020-02-14 14:52:20
○ 2026-04-14 22:46:04

○MXrelay1.exodus.net2015-08-10 → 2017-03-14 · 4 obs

● 2015-08-10 13:59:28
● 2017-03-14 20:12:38
○ 2020-02-14 14:52:20
○ 2026-04-14 22:46:04

○MXrelay2.exodus.net2015-08-10 → 2017-03-14 · 4 obs

● 2015-08-10 13:59:28
● 2017-03-14 20:12:38
○ 2020-02-14 14:52:20
○ 2026-04-14 22:46:04

○MXrelay3.exodus.net2015-08-10 → 2017-03-14 · 4 obs

● 2015-08-10 13:59:28
● 2017-03-14 20:12:38
○ 2020-02-14 14:52:20
○ 2026-04-14 22:46:04

○MXrelay4.exodus.net2015-08-10 → 2017-03-14 · 4 obs

● 2015-08-10 13:59:28
● 2017-03-14 20:12:38
○ 2020-02-14 14:52:20
○ 2026-04-14 22:46:04

○MXrelay5.exodus.net2015-08-10 → 2017-03-14 · 4 obs

● 2015-08-10 13:59:28
● 2017-03-14 20:12:38
○ 2020-02-14 14:52:20
○ 2026-04-14 22:46:04

○MXrelay6.exodus.net2015-08-10 → 2017-03-14 · 4 obs

● 2015-08-10 13:59:28
● 2017-03-14 20:12:38
○ 2020-02-14 14:52:20
○ 2026-04-14 22:46:04

●A172.93.48.1062026-03-17 → 2026-04-14 · 3 obs

○ 2020-02-14 14:52:20
● 2026-03-17 12:11:02
● 2026-04-14 22:46:04

○A216.21.239.1972015-08-10 → 2017-03-14 · 4 obs

● 2015-08-10 13:59:28
● 2017-03-14 20:12:38
○ 2020-02-14 14:52:20
○ 2026-04-14 22:46:04

●A2602:ff16:2:0:1:af:0:12026-03-17 → 2026-04-14 · 3 obs

○ 2020-02-14 14:52:20
● 2026-03-17 12:11:02
● 2026-04-14 22:46:04

○A2605:fb80:e000:ea73::12020-02-14 → 2020-02-14 · 4 obs

○ 2017-03-14 20:12:38
● 2020-02-14 14:52:20
○ 2026-03-17 12:11:02
○ 2026-04-14 22:46:04

○A45.43.21.1242020-02-14 → 2020-02-14 · 4 obs

○ 2017-03-14 20:12:38
● 2020-02-14 14:52:20
○ 2026-03-17 12:11:02
○ 2026-04-14 22:46:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, f.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net...	-
textbooks101.com	ns1.textbooks101.com, ns2.textbooks101.com	2 records

✅ Authoritative Response

Server:172.93.48.106

NS records: ns1.textbooks101.com, ns2.textbooks101.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for textbooks101.com (unsigned zone)

⏱️ Timing

Total: 221ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`172.93.48.106`
AAAA	1	`2602:ff16:2:0:1:af:0:1`
NS	2	`ns1.textbooks101.com, ns2.textbooks101.com`
MX	1	`mail.textbooks101.com (pri: 10)`
TXT	2	`google-site-verification=x44NXq-i-G7PaH7, v=spf1 +a +mx +a:fridaysg.com -all`
SOA	1	`ns2.textbooks101.com adam\.farag.hotmail`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.textbooks101.com, ns2.textbooks101.com)

Analysis

Hierarchy

textbooks101.com is a parent of ns2.textbooks101.com, ns1.textbooks101.com and mail.textbooks101.com.

IP Addresses

textbooks101.com points to two IP numbers: 2602:ff16:2:0:1:af:0:1 and 172.93.48.106.

Other host names such as ns1.textbooks101.com, mail.musry.com, mail.101textbooks.com, mail.textbooks101.com and influencerspring.com share IPs with textbooks101.com.

Name Servers

textbooks101.com is delegated to two name servers: ns1.textbooks101.com and ns2.textbooks101.com.

Host names with two IP numbers:

ns1.textbooks101.com points to 2602:ff16:2:0:1:af:0:1 and 172.93.48.106.

ns2.textbooks101.com points to 2602:ff16:2:0:1:af:0:1 and 172.93.48.106.

Host names pointing to 2602:ff16:2:0:1:af:0:1: ns1.textbooks101.com and ns2.textbooks101.com.

Host names pointing to 172.93.48.106: ns1.textbooks101.com and ns2.textbooks101.com.

Mail Servers

textbooks101.com is handled by a single mail server, mail.textbooks101.com.

The mail server setup for textbooks101.com mirrors that of other domains, for instance 101textbooks.com.

mail.textbooks101.com points to two IPs: 2602:ff16:2:0:1:af:0:1 and 172.93.48.106.

textbooks101.com - robtex.com