`gengbook.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:27dc^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:951e^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.39.220^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.149.30^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`bill.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bill.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`bill.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`bill.ns.cloudflare.com`
		A	108.162.193.74^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bill.ns.cloudflare.com`
		A	172.64.33.74^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bill.ns.cloudflare.com`
		A	173.245.59.74^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`bill.ns.cloudflare.com`
NS	`simone.ns.cloudflare.com`
		A	2606:4700:50::a29f:261a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`simone.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c21a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`simone.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:221a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`simone.ns.cloudflare.com`
		A	108.162.194.26^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`simone.ns.cloudflare.com`
		A	162.159.38.26^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`simone.ns.cloudflare.com`
		A	172.64.34.26^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`simone.ns.cloudflare.com`
TXT	`google-site-verification=8VGdvKLXOX7f1oPsnFrCb96B3ilYOISbYpyuc1EZqfU`
TXT	`yandex-verification: 504ebbb7d413c87a`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.39.220, 172.67.149.30
		IPv6 hints	2606:4700:3031::6815:27dc, 2606:4700:3034::ac43:951e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=68, name=cloudflare-ech.com
SOA	`bill.ns.cloudflare.com`dns@cloudflare.com serial=2406305736

`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=1784673827

Subdomains

www.gengbook.com

Same first word

gengbook.com

DNS History

16 records (6 active, 10 former)

●NSbill.ns.cloudflare.com2026-05-25 → 2026-07-21 · 3 obs

○ 2017-11-22 08:35:54
● 2026-05-25 19:54:36
● 2026-07-21 23:03:04

○NSdns10.hichina.com2016-12-17 → 2016-12-17 · 3 obs

● 2016-12-17 12:01:44
○ 2017-11-22 08:35:54
○ 2026-07-21 23:03:04

○NSdns9.hichina.com2016-12-17 → 2016-12-17 · 3 obs

● 2016-12-17 12:01:44
○ 2017-11-22 08:35:54
○ 2026-07-21 23:03:04

○NSf1g1ns1.dnspod.net2017-11-22 → 2017-11-22 · 4 obs

○ 2016-12-17 12:01:44
● 2017-11-22 08:35:54
○ 2026-05-25 19:54:36
○ 2026-07-21 23:03:04

○NSf1g1ns2.dnspod.net2017-11-22 → 2017-11-22 · 4 obs

○ 2016-12-17 12:01:44
● 2017-11-22 08:35:54
○ 2026-05-25 19:54:36
○ 2026-07-21 23:03:04

●NSsimone.ns.cloudflare.com2026-05-25 → 2026-07-21 · 3 obs

○ 2017-11-22 08:35:54
● 2026-05-25 19:54:36
● 2026-07-21 23:03:04

●A104.21.39.2202026-05-25 → 2026-07-21 · 4 obs

● 2026-05-25 19:54:36
● 2026-05-27 07:11:42
○ 2026-06-20 19:14:50
● 2026-07-21 23:03:04

●A172.67.149.302026-05-25 → 2026-07-21 · 4 obs

● 2026-05-25 19:54:36
● 2026-05-27 07:11:42
○ 2026-06-20 19:14:50
● 2026-07-21 23:03:04

○A188.114.96.02026-06-20 → 2026-06-20 · 3 obs

○ 2026-05-27 07:11:42
● 2026-06-20 19:14:50
○ 2026-07-21 23:03:04

○A188.114.97.02026-06-20 → 2026-06-20 · 3 obs

○ 2026-05-27 07:11:42
● 2026-06-20 19:14:50
○ 2026-07-21 23:03:04

○A2606:4700:3030::6815:27dc2026-05-25 → 2026-05-27 · 4 obs

● 2026-05-25 19:54:36
● 2026-05-27 07:11:42
○ 2026-06-20 19:14:50
○ 2026-07-21 23:03:04

○A2606:4700:3030::ac43:951e2026-05-25 → 2026-05-27 · 4 obs

● 2026-05-25 19:54:36
● 2026-05-27 07:11:42
○ 2026-06-20 19:14:50
○ 2026-07-21 23:03:04

●A2606:4700:3031::6815:27dc2026-07-21 → 2026-07-21 · 2 obs

○ 2026-06-20 19:14:50
● 2026-07-21 23:03:04

●A2606:4700:3034::ac43:951e2026-07-21 → 2026-07-21 · 2 obs

○ 2026-06-20 19:14:50
● 2026-07-21 23:03:04

○A2a06:98c1:3120::2026-06-20 → 2026-06-20 · 3 obs

○ 2026-05-27 07:11:42
● 2026-06-20 19:14:50
○ 2026-07-21 23:03:04

○A2a06:98c1:3121::2026-06-20 → 2026-06-20 · 3 obs

○ 2026-05-27 07:11:42
● 2026-06-20 19:14:50
○ 2026-07-21 23:03:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, m.gtld-servers.net, h.gtld-servers.net, b.gtld-servers.net...	-
gengbook.com	bill.ns.cloudflare.com, simone.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.74

NS records: bill.ns.cloudflare.com, simone.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gengbook.com (unsigned zone)

⏱️ Timing

Total: 305ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.149.30, 104.21.39.220`
AAAA	2	`2606:4700:3034::ac43:951e, 2606:4700:3031::6815:27dc`
NS	2	`bill.ns.cloudflare.com, simone.ns.cloudflare.com`
TXT	2	`google-site-verification=8VGdvKLXOX7f1oP, yandex-verification: 504ebbb7d413c87a`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`bill.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

www.gengbook.com is a subdomain of gengbook.com.

IP Addresses

gengbook.com directs to four IP numbers, which are 104.21.39.220, 172.67.149.30, 2606:4700:3031::6815:27dc and 2606:4700:3034::ac43:951e.

spaconsult.eu, mahadevsmmpanel.in, silora.sbs plus two other host names have IP numbers in common with gengbook.com.

Name Servers

gengbook.com is delegated to two name servers: bill.ns.cloudflare.com and simone.ns.cloudflare.com.

The name server configuration of gengbook.com is shared with other domains, for instance realusajacket.com, forza.com.br, luceda.be and two others.

The name servers of gengbook.com overlap at least partially with those of other domains — among them riccasposausa.com, tver-pro.ru, convite-bradescocardonline.com and two more.

The name servers jasper.ns.cloudflare.com, bradley.ns.cloudflare.com and demi.ns.cloudflare.com are commonly seen alongside these name servers.

Hosts with 6 IP addresses each:

bill.ns.cloudflare.com resolves to 108.162.193.74, 172.64.33.74, 173.245.59.74 and 3 other IP addresses.

simone.ns.cloudflare.com resolves to 108.162.194.26, 162.159.38.26, 172.64.34.26 and 3 other IP addresses.

gengbook.com - robtex.com

gengbook.com

com

Subdomains

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

`gengbook.com`

`com`