`bookcaptcha.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::ac43:a05f^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::6815:3a91^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.58.145^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.160.95^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`emma.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a70^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c070^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`emma.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2070^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`emma.ns.cloudflare.com`
		A	108.162.192.112^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
		A	172.64.32.112^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
		A	173.245.58.112^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`emma.ns.cloudflare.com`
NS	`matteo.ns.cloudflare.com`
		A	2606:4700:58::a29f:2ce0^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`matteo.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3e0^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`matteo.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23e0^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`matteo.ns.cloudflare.com`
		A	108.162.195.224^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`matteo.ns.cloudflare.com`
		A	162.159.44.224^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`matteo.ns.cloudflare.com`
		A	172.64.35.224^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`matteo.ns.cloudflare.com`
MX	`route3.mx.cloudflare.net` ⭐
		A	2606:4700:f5::11^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::12^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	2606:4700:f5::13^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.23^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.24^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
		A	162.159.205.25^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route3.mx.cloudflare.net`
MX	`route1.mx.cloudflare.net`⁽²¹⁾
		A	2606:4700:f5::b^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::c^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	2606:4700:f5::d^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.11^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.12^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
		A	162.159.205.13^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route1.mx.cloudflare.net`
MX	`route2.mx.cloudflare.net`⁽³⁰⁾
		A	2606:4700:f5::e^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::f^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	2606:4700:f5::10^{🇺🇸 Cloudflare2606:4700:f5::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.17^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.18^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
		A	162.159.205.19^{Cloudflare162.159.205.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`route2.mx.cloudflare.net`
TXT	`expired`
TXT	`mandrill_verify.eAaPp60GdC1oNEcaJr385Q`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.58.145, 172.67.160.95
		IPv6 hints	2606:4700:3031::ac43:a05f, 2606:4700:3032::6815:3a91
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=215, name=cloudflare-ech.com
SOA	`emma.ns.cloudflare.com`dns@cloudflare.com serial=2402193255

`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=1777044096

⚠️ On DNS blocklist: tif

Same first word

bookcaptcha.com

DNS History

9 records (9 active, 0 former)

●NSemma.ns.cloudflare.com2026-04-22 → 2026-04-24 · 2 obs

● 2026-04-22 02:15:10
● 2026-04-24 15:30:26

●NSmatteo.ns.cloudflare.com2026-04-22 → 2026-04-24 · 2 obs

● 2026-04-22 02:15:10
● 2026-04-24 15:30:26

●MXroute1.mx.cloudflare.net2026-04-22 → 2026-04-24 · 2 obs

● 2026-04-22 02:15:10
● 2026-04-24 15:30:26

●MXroute2.mx.cloudflare.net2026-04-22 → 2026-04-24 · 2 obs

● 2026-04-22 02:15:10
● 2026-04-24 15:30:26

●MXroute3.mx.cloudflare.net2026-04-22 → 2026-04-24 · 2 obs

● 2026-04-22 02:15:10
● 2026-04-24 15:30:26

●A104.21.58.1452026-04-22 → 2026-04-24 · 2 obs

● 2026-04-22 02:15:10
● 2026-04-24 15:30:26

●A172.67.160.952026-04-22 → 2026-04-24 · 2 obs

● 2026-04-22 02:15:10
● 2026-04-24 15:30:26

●A2606:4700:3031::ac43:a05f2026-04-22 → 2026-04-24 · 2 obs

● 2026-04-22 02:15:10
● 2026-04-24 15:30:26

●A2606:4700:3032::6815:3a912026-04-22 → 2026-04-24 · 2 obs

● 2026-04-22 02:15:10
● 2026-04-24 15:30:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net, k.gtld-servers.net...	-
bookcaptcha.com	emma.ns.cloudflare.com, matteo.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.195.224

NS records: emma.ns.cloudflare.com, matteo.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bookcaptcha.com (unsigned zone)

⏱️ Timing

Total: 239ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.58.145, 172.67.160.95`
AAAA	2	`2606:4700:3031::ac43:a05f, 2606:4700:3032::6815:3a91`
NS	2	`emma.ns.cloudflare.com, matteo.ns.cloudflare.com`
MX	3	`route3.mx.cloudflare.net (pri: 13), route1.mx.cloudflare.net (pri: 21)...`
TXT	3	`expired, mandrill_verify.eAaPp60GdC1oNEcaJr385Q...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`emma.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

bookcaptcha.com resolves to four IPs: 2606:4700:3031::ac43:a05f, 2606:4700:3032::6815:3a91, 104.21.58.145 and 172.67.160.95.

Other host names such as www.vertexlinkfusion.com, trasa.info, www.ueqkrtmgiokeg.site, mail.cometrens.dk and epicorpg.com.br share IP numbers with bookcaptcha.com.

Name Servers

bookcaptcha.com is delegated to two name servers: emma.ns.cloudflare.com and matteo.ns.cloudflare.com.

bookcaptcha.com uses the same name server setup as other domains, for example mizarconsultancy.com and 2ie.org.

At least part of the name servers for bookcaptcha.com are shared with other domains, for instance coccoc.uk, weegerink.nl, karinakeberga.com, iamjke.com and fdmpro.com.

These name servers are commonly used alongside the name servers ali.ns.cloudflare.com.

Host names with six IP numbers:

emma.ns.cloudflare.com points to: 2606:4700:50::adf5:3a70, 2803:f800:50::6ca2:c070, 2a06:98c1:50::ac40:2070, 108.162.192.112, 172.64.32.112 and 173.245.58.112.

matteo.ns.cloudflare.com points to: 2606:4700:58::a29f:2ce0, 2803:f800:50::6ca2:c3e0, 2a06:98c1:50::ac40:23e0, 108.162.195.224, 162.159.44.224 and 172.64.35.224.

Mail Servers

Three mail servers handle bookcaptcha.com: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

bookcaptcha.com shares at least some mail servers with other domains, for example ma-russia.com, recipes2day.com, lks.tw, austinhomestoday.com and tuinmuebleonline.com.

Host names with six IP numbers: route1.mx.cloudflare.net points to 2606:4700:f5::b, 2606:4700:f5::c, 2606:4700:f5::d, 162.159.205.11, 162.159.205.12 and 162.159.205.13; route2.mx.cloudflare.net points to 2606:4700:f5::e, 2606:4700:f5::f, 2606:4700:f5::10, 162.159.205.17, 162.159.205.18 and 162.159.205.19; route3.mx.cloudflare.net points to 2606:4700:f5::11, 2606:4700:f5::12, 2606:4700:f5::13, 162.159.205.23, 162.159.205.24 and 162.159.205.25.

bookcaptcha.com - robtex.com

bookcaptcha.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

Mail Servers

`bookcaptcha.com`

`com`