`textbookxdotcom.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::6815:27a8^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:92c7^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.39.168^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.146.199^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`meera.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3ac3^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meera.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0c3^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`meera.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20c3^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`meera.ns.cloudflare.com`
		A	108.162.192.195^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meera.ns.cloudflare.com`
		A	172.64.32.195^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meera.ns.cloudflare.com`
		A	173.245.58.195^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`meera.ns.cloudflare.com`
NS	`noah.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b85^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c185^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`noah.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2185^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`noah.ns.cloudflare.com`
		A	108.162.193.133^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	172.64.33.133^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
		A	173.245.59.133^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`noah.ns.cloudflare.com`
TXT	`v=spf1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.39.168, 172.67.146.199
		IPv6	2606:4700:3033::6815:27a8, 2606:4700:3033::ac43:92c7
SOA	`meera.ns.cloudflare.com`dns@cloudflare.com serial=2399974666

`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=1774576977

Subdomains

hostmaster.textbookxdotcom.com

Same first word

textbookxdotcom.com

DNS History

21 records (6 active, 15 former)

●NSmeera.ns.cloudflare.com2026-03-13 → 2026-03-27 · 3 obs

○ 2016-06-24 03:08:56
● 2026-03-13 22:29:50
● 2026-03-27 02:15:00

●NSnoah.ns.cloudflare.com2026-03-13 → 2026-03-27 · 3 obs

○ 2016-06-24 03:08:56
● 2026-03-13 22:29:50
● 2026-03-27 02:15:00

○NSns-1520.awsdns-62.org2015-06-18 → 2016-06-24 · 4 obs

● 2015-06-18 16:05:34
● 2016-06-24 03:08:56
○ 2026-03-13 22:29:50
○ 2026-03-27 02:15:00

○NSns-1720.awsdns-23.co.uk2015-06-18 → 2016-06-24 · 4 obs

● 2015-06-18 16:05:34
● 2016-06-24 03:08:56
○ 2026-03-13 22:29:50
○ 2026-03-27 02:15:00

○NSns-335.awsdns-41.com2015-06-18 → 2016-06-24 · 4 obs

● 2015-06-18 16:05:34
● 2016-06-24 03:08:56
○ 2026-03-13 22:29:50
○ 2026-03-27 02:15:00

○NSns-634.awsdns-15.net2015-06-18 → 2016-06-24 · 4 obs

● 2015-06-18 16:05:34
● 2016-06-24 03:08:56
○ 2026-03-13 22:29:50
○ 2026-03-27 02:15:00

○MXmx0.akademos.com2015-06-18 → 2016-06-24 · 4 obs

● 2015-06-18 16:05:34
● 2016-06-24 03:08:56
○ 2026-03-13 22:29:50
○ 2026-03-27 02:15:00

●A104.21.39.1682026-03-27 → 2026-03-27 · 3 obs

○ 2026-03-13 22:29:50
● 2026-03-27 02:14:58
● 2026-03-27 02:15:00

●A172.67.146.1992026-03-27 → 2026-03-27 · 3 obs

○ 2026-03-13 22:29:50
● 2026-03-27 02:14:58
● 2026-03-27 02:15:00

○A188.114.96.02026-03-13 → 2026-03-13 · 4 obs

○ 2016-06-24 03:08:56
● 2026-03-13 22:29:50
○ 2026-03-27 02:14:58
○ 2026-03-27 02:15:00

○A188.114.97.02026-03-13 → 2026-03-13 · 4 obs

○ 2016-06-24 03:08:56
● 2026-03-13 22:29:50
○ 2026-03-27 02:14:58
○ 2026-03-27 02:15:00

●A2606:4700:3033::6815:27a82026-03-27 → 2026-03-27 · 3 obs

○ 2026-03-13 22:29:50
● 2026-03-27 02:14:58
● 2026-03-27 02:15:00

●A2606:4700:3033::ac43:92c72026-03-27 → 2026-03-27 · 3 obs

○ 2026-03-13 22:29:50
● 2026-03-27 02:14:58
● 2026-03-27 02:15:00

○A2a06:98c1:3120::2026-03-13 → 2026-03-13 · 4 obs

○ 2016-06-24 03:08:56
● 2026-03-13 22:29:50
○ 2026-03-27 02:14:58
○ 2026-03-27 02:15:00

○A2a06:98c1:3121::2026-03-13 → 2026-03-13 · 4 obs

○ 2016-06-24 03:08:56
● 2026-03-13 22:29:50
○ 2026-03-27 02:14:58
○ 2026-03-27 02:15:00

○A52.202.68.232016-06-24 → 2016-06-24 · 4 obs

○ 2016-02-27 14:13:18
● 2016-06-24 03:08:56
○ 2026-03-13 22:29:50
○ 2026-03-27 02:15:00

○A52.22.163.2212015-11-16 → 2016-02-27 · 5 obs

○ 2015-06-18 16:05:34
● 2015-11-16 22:46:56
● 2016-02-27 14:13:18
○ 2016-06-24 03:08:56
○ 2026-03-27 02:15:00

○A52.5.80.782015-11-16 → 2016-02-27 · 5 obs

○ 2015-06-18 16:05:34
● 2015-11-16 22:46:56
● 2016-02-27 14:13:18
○ 2016-06-24 03:08:56
○ 2026-03-27 02:15:00

○A54.165.36.2112015-06-18 → 2015-06-18 · 3 obs

● 2015-06-18 16:05:34
○ 2015-11-16 22:46:56
○ 2026-03-27 02:15:00

○A54.172.156.2232015-06-18 → 2015-06-18 · 3 obs

● 2015-06-18 16:05:34
○ 2015-11-16 22:46:56
○ 2026-03-27 02:15:00

○A54.175.166.2532016-06-24 → 2016-06-24 · 4 obs

○ 2016-02-27 14:13:18
● 2016-06-24 03:08:56
○ 2026-03-13 22:29:50
○ 2026-03-27 02:15:00

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	f.gtld-servers.net, b.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net...	-
textbookxdotcom.com	noah.ns.cloudflare.com, meera.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.133

NS records: noah.ns.cloudflare.com, meera.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for textbookxdotcom.com (unsigned zone)

⏱️ Timing

Total: 206ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.39.168, 172.67.146.199`
AAAA	2	`2606:4700:3033::6815:27a8, 2606:4700:3033::ac43:92c7`
NS	2	`meera.ns.cloudflare.com, noah.ns.cloudflare.com`
TXT	1	`v=spf1 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`meera.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (noah.ns.cloudflare.com, noah.ns.cloudflare.com, noah.ns.cloudflare.com...)

Analysis

Hierarchy

The parent of hostmaster.textbookxdotcom.com is textbookxdotcom.com.

IP Addresses

textbookxdotcom.com maps to four IP numbers: 2606:4700:3033::6815:27a8, 2606:4700:3033::ac43:92c7, 104.21.39.168 and 172.67.146.199.

Other host names such as trezor.work, www.millapoignees.fr, rafoscafela.com, conactive.info and christianmediamagazine.com share IPs with textbookxdotcom.com.

Name Servers

Two name servers meera.ns.cloudflare.com and noah.ns.cloudflare.com handle the delegation for textbookxdotcom.com.

textbookxdotcom.com shares the same name server setup as other domains, for example vitalsource.me, vitalsource.eu, slubookstore.com, akademos.net and verbaconnect.com.

textbookxdotcom.com at least partially shares name servers with other domains, for example info-blog.to, ultav3.me, netgen.eu, montanaacademy.com and dobsons.com.

these name servers are commonly used alongside lisa.ns.cloudflare.com name servers.

Host names with six IP numbers:

meera.ns.cloudflare.com points to 2606:4700:50::adf5:3ac3, 2803:f800:50::6ca2:c0c3, 2a06:98c1:50::ac40:20c3, 108.162.192.195, 172.64.32.195 and 173.245.58.195.

noah.ns.cloudflare.com points to 2606:4700:58::adf5:3b85, 2803:f800:50::6ca2:c185, 2a06:98c1:50::ac40:2185, 108.162.193.133, 172.64.33.133 and 173.245.59.133.

textbookxdotcom.com - robtex.com