`xiubook.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:36db^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:8edb^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.54.219^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.142.219^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elisabeth.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26e0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisabeth.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2e0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`elisabeth.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22e0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`elisabeth.ns.cloudflare.com`
		A	108.162.194.224^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisabeth.ns.cloudflare.com`
		A	162.159.38.224^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisabeth.ns.cloudflare.com`
		A	172.64.34.224^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`elisabeth.ns.cloudflare.com`
NS	`ian.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b76^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ian.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c176^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`ian.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2176^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`ian.ns.cloudflare.com`
		A	108.162.193.118^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ian.ns.cloudflare.com`
		A	172.64.33.118^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ian.ns.cloudflare.com`
		A	173.245.59.118^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`ian.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.54.219, 172.67.142.219
		IPv6	2606:4700:3035::6815:36db, 2606:4700:3036::ac43:8edb
SOA	`elisabeth.ns.cloudflare.com`dns@cloudflare.com serial=2397785903

`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=1774456827

Same first word

xiubook.com

DNS History

23 records (6 active, 17 former)

●NSelisabeth.ns.cloudflare.com2026-03-15 → 2026-03-25 · 3 obs

○ 2017-04-04 07:31:06
● 2026-03-15 13:57:00
● 2026-03-25 17:08:48

●NSian.ns.cloudflare.com2026-03-15 → 2026-03-25 · 3 obs

○ 2017-04-04 07:31:06
● 2026-03-15 13:57:00
● 2026-03-25 17:08:48

○NSns1.namebrightdns.com2015-08-08 → 2017-04-04 · 6 obs

● 2015-08-08 21:49:28
● 2016-03-13 16:02:44
○ 2016-07-22 08:38:18
● 2017-04-04 07:31:06
○ 2026-03-15 13:57:00
○ 2026-03-25 17:08:48

○NSns2.namebrightdns.com2015-08-08 → 2017-04-04 · 6 obs

● 2015-08-08 21:49:28
● 2016-03-13 16:02:44
○ 2016-07-22 08:38:18
● 2017-04-04 07:31:06
○ 2026-03-15 13:57:00
○ 2026-03-25 17:08:48

○NSnsg1.namebrightdns.com2016-07-22 → 2016-07-22 · 4 obs

○ 2016-03-13 16:02:44
● 2016-07-22 08:38:18
○ 2017-04-04 07:31:06
○ 2026-03-25 17:08:48

○NSnsg2.namebrightdns.com2016-07-22 → 2016-07-22 · 4 obs

○ 2016-03-13 16:02:44
● 2016-07-22 08:38:18
○ 2017-04-04 07:31:06
○ 2026-03-25 17:08:48

○MXanmail.namebrightmail.com2015-08-08 → 2015-08-08 · 3 obs

● 2015-08-08 21:49:28
○ 2015-11-27 05:24:32
○ 2026-03-25 17:08:48

●A104.21.54.2192026-03-15 → 2026-03-25 · 3 obs

○ 2017-04-04 07:31:06
● 2026-03-15 13:57:00
● 2026-03-25 17:08:48

●A172.67.142.2192026-03-15 → 2026-03-25 · 3 obs

○ 2017-04-04 07:31:06
● 2026-03-15 13:57:00
● 2026-03-25 17:08:48

●A2606:4700:3035::6815:36db2026-03-15 → 2026-03-25 · 3 obs

○ 2017-04-04 07:31:06
● 2026-03-15 13:57:00
● 2026-03-25 17:08:48

●A2606:4700:3036::ac43:8edb2026-03-15 → 2026-03-25 · 3 obs

○ 2017-04-04 07:31:06
● 2026-03-15 13:57:00
● 2026-03-25 17:08:48

○A52.0.142.942015-08-08 → 2015-08-08 · 3 obs

● 2015-08-08 21:49:28
○ 2026-03-15 13:57:00
○ 2026-03-25 17:08:48

○A52.0.96.242016-03-13 → 2016-03-13 · 4 obs

○ 2015-11-27 05:24:32
● 2016-03-13 16:02:44
○ 2016-07-22 08:38:18
○ 2026-03-25 17:08:48

○A52.201.19.1702016-07-22 → 2016-07-22 · 4 obs

○ 2016-03-13 16:02:44
● 2016-07-22 08:38:18
○ 2017-04-04 07:31:06
○ 2026-03-25 17:08:48

○A52.202.238.1262016-07-22 → 2016-07-22 · 4 obs

○ 2016-03-13 16:02:44
● 2016-07-22 08:38:18
○ 2017-04-04 07:31:06
○ 2026-03-25 17:08:48

○A52.204.129.222017-04-04 → 2017-04-04 · 4 obs

○ 2016-07-22 08:38:18
● 2017-04-04 07:31:06
○ 2026-03-15 13:57:00
○ 2026-03-25 17:08:48

○A52.71.117.992016-03-13 → 2016-03-13 · 4 obs

○ 2015-11-27 05:24:32
● 2016-03-13 16:02:44
○ 2016-07-22 08:38:18
○ 2026-03-25 17:08:48

○A54.174.31.2542015-11-27 → 2015-11-27 · 4 obs

○ 2015-08-08 21:49:28
● 2015-11-27 05:24:32
○ 2016-03-13 16:02:44
○ 2026-03-25 17:08:48

○A54.208.74.2152015-11-27 → 2015-11-27 · 4 obs

○ 2015-08-08 21:49:28
● 2015-11-27 05:24:32
○ 2016-03-13 16:02:44
○ 2026-03-25 17:08:48

○A54.84.204.2432015-08-08 → 2015-08-08 · 3 obs

● 2015-08-08 21:49:28
○ 2026-03-15 13:57:00
○ 2026-03-25 17:08:48

○A54.85.127.702017-04-04 → 2017-04-04 · 4 obs

○ 2016-07-22 08:38:18
● 2017-04-04 07:31:06
○ 2026-03-15 13:57:00
○ 2026-03-25 17:08:48

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-08-08 → 2016-07-22 · 4 obs

● 2015-08-08 21:49:28
● 2016-07-22 08:38:18
○ 2017-04-04 07:31:06
○ 2026-03-25 17:08:48

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-04-04 → 2017-04-04 · 4 obs

○ 2016-07-22 08:38:18
● 2017-04-04 07:31:06
○ 2026-03-15 13:57:00
○ 2026-03-25 17:08:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, j.gtld-servers.net, c.gtld-servers.net...	-
xiubook.com	ian.ns.cloudflare.com, elisabeth.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.118

NS records: ian.ns.cloudflare.com, elisabeth.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for xiubook.com (unsigned zone)

⏱️ Timing

Total: 118ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.54.219, 172.67.142.219`
AAAA	2	`2606:4700:3035::6815:36db, 2606:4700:3036::ac43:8edb`
NS	2	`elisabeth.ns.cloudflare.com, ian.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`elisabeth.ns.cloudflare.com dns.cloudfla`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

xiubook.com points to four IP numbers: 2606:4700:3035::6815:36db, 2606:4700:3036::ac43:8edb, 104.21.54.219 and 172.67.142.219.

For instance, other host names northfaceclearance.us.com, www.dh185.com, heritagepotomac.com, panvl.com and kai.lt share IP numbers with xiubook.com.

Name Servers

xiubook.com is delegated to two name servers: elisabeth.ns.cloudflare.com and ian.ns.cloudflare.com.

xiubook.com uses the same name server setup as other domains such as ilituo.com, e-koza.com, ssofficelocations.com, oppof9pro.com and falconsourcing.com.

xiubook.com shares name servers with other domains at least partially, for example nhomkinhdanang.com, lexpure.com, agingparenthelp.com, nnmbrann.com and decaffeinated.io.

These name servers are commonly used with the name servers lily.ns.cloudflare.com and meera.ns.cloudflare.com.

Host names with six IP numbers: host name elisabeth.ns.cloudflare.com points to: 2606:4700:50::a29f:26e0, 2803:f800:50::6ca2:c2e0, 2a06:98c1:50::ac40:22e0, 108.162.194.224, 162.159.38.224 and 172.64.34.224; host name ian.ns.cloudflare.com points to: 2606:4700:58::adf5:3b76, 2803:f800:50::6ca2:c176, 2a06:98c1:50::ac40:2176, 108.162.193.118, 172.64.33.118 and 173.245.59.118.

xiubook.com - robtex.com

xiubook.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

`xiubook.com`

`com`