`dubblebooked.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:57b1^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:aa7d^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.87.177^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.170.125^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dan.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b6c^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c16c^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:216c^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dan.ns.cloudflare.com`
		A	108.162.193.108^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dan.ns.cloudflare.com`
		A	172.64.33.108^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dan.ns.cloudflare.com`
		A	173.245.59.108^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dan.ns.cloudflare.com`
NS	`danica.ns.cloudflare.com`
		A	2606:4700:50::a29f:26bb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2bb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`danica.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22bb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`danica.ns.cloudflare.com`
		A	108.162.194.187^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
		A	162.159.38.187^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
		A	172.64.34.187^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`danica.ns.cloudflare.com`
MX	`route1.mx.cloudflare.net` ⭐
		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`⁽⁵⁴⁾
		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`
MX	`route3.mx.cloudflare.net`⁽⁶⁵⁾
		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`
TXT	`brevo-code:49cf480889a4d3a2a98a6ea420c2fbaa`
TXT	`v=spf1 include:spf.sendinblue.com include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.87.177, 172.67.170.125
		IPv6 hints	2606:4700:3035::6815:57b1, 2606:4700:3036::ac43:aa7d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=180, name=cloudflare-ech.com
SOA	`dan.ns.cloudflare.com`dns@cloudflare.com serial=2399325275

`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=1776504047

Subdomains

mail.dubblebooked.com

Same first word

dubblebooked.com

DNS History

14 records (9 active, 5 former)

●NSdan.ns.cloudflare.com2026-03-29 → 2026-04-18 · 3 obs

○ 2020-01-27 08:04:42
● 2026-03-29 02:09:32
● 2026-04-18 09:48:04

●NSdanica.ns.cloudflare.com2026-03-29 → 2026-04-18 · 3 obs

○ 2020-01-27 08:04:42
● 2026-03-29 02:09:32
● 2026-04-18 09:48:04

○NSns1.justhost.com2015-08-22 → 2020-01-27 · 4 obs

● 2015-08-22 14:06:56
● 2020-01-27 08:04:42
○ 2026-03-29 02:09:32
○ 2026-04-18 09:48:04

○NSns2.justhost.com2015-08-22 → 2020-01-27 · 4 obs

● 2015-08-22 14:06:56
● 2020-01-27 08:04:42
○ 2026-03-29 02:09:32
○ 2026-04-18 09:48:04

○MXmail.dubblebooked.com2015-08-22 → 2020-01-27 · 4 obs

● 2015-08-22 14:06:56
● 2020-01-27 08:04:42
○ 2026-03-29 02:09:32
○ 2026-04-18 09:48:04

●MXroute1.mx.cloudflare.net2026-03-29 → 2026-04-18 · 3 obs

○ 2020-01-27 08:04:42
● 2026-03-29 02:09:32
● 2026-04-18 09:48:04

●MXroute2.mx.cloudflare.net2026-03-29 → 2026-04-18 · 3 obs

○ 2020-01-27 08:04:42
● 2026-03-29 02:09:32
● 2026-04-18 09:48:04

●MXroute3.mx.cloudflare.net2026-03-29 → 2026-04-18 · 3 obs

○ 2020-01-27 08:04:42
● 2026-03-29 02:09:32
● 2026-04-18 09:48:04

●A104.21.87.1772026-03-29 → 2026-04-18 · 3 obs

○ 2020-01-27 08:04:42
● 2026-03-29 02:09:32
● 2026-04-18 09:48:04

●A172.67.170.1252026-03-29 → 2026-04-18 · 3 obs

○ 2020-01-27 08:04:42
● 2026-03-29 02:09:32
● 2026-04-18 09:48:04

●A2606:4700:3035::6815:57b12026-03-29 → 2026-04-18 · 3 obs

○ 2020-01-27 08:04:42
● 2026-03-29 02:09:32
● 2026-04-18 09:48:04

●A2606:4700:3036::ac43:aa7d2026-03-29 → 2026-04-18 · 3 obs

○ 2020-01-27 08:04:42
● 2026-03-29 02:09:32
● 2026-04-18 09:48:04

○A69.195.113.802015-08-22 → 2020-01-27 · 4 obs

● 2015-08-22 14:06:56
● 2020-01-27 08:04:42
○ 2026-03-29 02:09:32
○ 2026-04-18 09:48:04

○A74.220.199.62026-03-29 → 2026-04-18 · 2 obs

○ 2026-03-29 02:09:32
○ 2026-04-18 09:48:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, c.gtld-servers.net, h.gtld-servers.net, m.gtld-servers.net...	-
dubblebooked.com	dan.ns.cloudflare.com, danica.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.187

NS records: dan.ns.cloudflare.com, danica.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for dubblebooked.com (unsigned zone)

⏱️ Timing

Total: 112ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.170.125, 104.21.87.177`
AAAA	2	`2606:4700:3035::6815:57b1, 2606:4700:3036::ac43:aa7d`
NS	2	`dan.ns.cloudflare.com, danica.ns.cloudflare.com`
MX	3	`route1.mx.cloudflare.net (pri: 32), route2.mx.cloudflare.net (pri: 54)...`
TXT	2	`brevo-code:49cf480889a4d3a2a98a6ea420c2f, v=spf1 include:spf.sendinblue.com includ`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dan.ns.cloudflare.com dns.cloudflare.com`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

dubblebooked.com is the parent of mail.dubblebooked.com.

IP Addresses

Four IP numbers are pointed to by dubblebooked.com: 2606:4700:3035::6815:57b1, 2606:4700:3036::ac43:aa7d, 104.21.87.177 and 172.67.170.125.

other host names including closetdiy.com, konkursjimbeam.pl, blackwoodbox.com, serial021.com and kubnev.com share IP numbers with dubblebooked.com.

Name Servers

dubblebooked.com is delegated to two name servers dan.ns.cloudflare.com and danica.ns.cloudflare.com.

dubblebooked.com shares the same name server setup as other domains, for instance caroclinic.com, bizhackers.com, verzoek-bijwerken.digital, giofinancial.com and ampajoanot.cat.

dubblebooked.com at least partially shares name servers with other domains, for instance convoyofhope.eu, 4sciencefiction.com, beststateinsurance.com, kellyscientific.ie and flatcleanerslondon.com.

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

Host names with six IP numbers:

Host name dan.ns.cloudflare.com points to: 2606:4700:58::adf5:3b6c, 2803:f800:50::6ca2:c16c, 2a06:98c1:50::ac40:216c, 108.162.193.108, 172.64.33.108 and 173.245.59.108.

Host name danica.ns.cloudflare.com points to: 2606:4700:50::a29f:26bb, 2803:f800:50::6ca2:c2bb, 2a06:98c1:50::ac40:22bb, 108.162.194.187, 162.159.38.187 and 172.64.34.187.

Mail Servers

dubblebooked.com is handled by three mail servers: route1.mx.cloudflare.net, route2.mx.cloudflare.net and route3.mx.cloudflare.net.

dubblebooked.com shares some mail servers with other domains, at least partially, for instance fettingercpa.com, gpfinance.pro, evigetir.com, chardscoverlessyeas.forum and paluska.eu.

Host names with six IP numbers:

Host name 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.

Host name 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.

Host name 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.

dubblebooked.com - robtex.com