`notebook.app`

DNSSEC	⚠️ Not signed
A	204.141.42.241^{🇺🇸 ZohoAS}
NS	`ns1.zohocorp.com` ⭐
		A	2001:502:4612::7e^{🇺🇸 MAINT-ID-12008}
			PTR	`pdns90.ultradns.org`
		A	156.154.67.90^{🇺🇸 MAINT-ID-12008}
			PTR	`pdns90.ultradns.org`
NS	`ns11.zns-53.com`
		A	2602:801:c00a::88^{🇺🇸 Zoho-Streaming-Content-Network}
			PTR	`ns11.zns-53.com`
		A	136.143.172.88^{🇺🇸 Zoho-Streaming-Content-Network}
			PTR	`ns11.zns-53.com`
NS	`ns21.zns-53.net`
		A	2602:801:c00b::99^{🇺🇸 Zoho-Streaming-Content-Network}
			PTR	`ns21.zns-53.net`
		A	136.143.173.99^{🇺🇸 Zoho-Streaming-Content-Network}
			PTR	`ns21.zns-53.net`
NS	`ns31.zns-53.com`
		A	2602:801:c00c::88^{🇺🇸 Zoho-Streaming-Content-Network}
			PTR	`ns31.zns-53.com`
		A	169.148.151.88^{🇺🇸 Zoho-Streaming-Content-Network}
			PTR	`ns31.zns-53.com`
NS	`ns41.zns-53.net`
		A	2602:801:c00c::99^{🇺🇸 Zoho-Streaming-Content-Network}
			PTR	`nns41.zns-53.net`
		A	169.148.152.99^{🇺🇸 Zoho-Streaming-Content-Network}
			PTR	`ns41.zns-53.net`
NS	`pdns90.ultradns.biz`
		A	2610:a1:1015::7e^{🇺🇸 MAINT-ID-12008}
			PTR	`pdns90.ultradns.biz`
		A	156.154.66.90^{🇺🇸 MAINT-ID-12008}
			PTR	`pdns90.ultradns.biz`
NS	`pdns90.ultradns.com`
		A	2001:502:f3ff::7e^{🇺🇸 MAINT-ID-12008}
			PTR	`pdns90.ultradns.com`
		A	156.154.64.90^{🇺🇸 MAINT-ID-12008}
			PTR	`pdns90.ultradns.com`
NS	`pdns90.ultradns.net`
		A	2610:a1:1014::7e^{🇺🇸 MAINT-ID-12008}
			PTR	`pdns90.ultradns.net`
		A	156.154.65.90^{🇺🇸 MAINT-ID-12008}
			PTR	`pdns90.ultradns.net`
MX	`mx2.zoho.com` ⭐
		A	136.143.191.44^{🇺🇸 ZohoAS}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽²⁰⁾
		A	204.141.43.44^{🇺🇸 ZohoAS}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
SOA	`ns1.zohocorp.com`dnsadmin@vtitan.com 2026-01-31 #2

`app`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns-tld1.charlestonroadregistry.com` ⭐
	NS	`ns-tld2.charlestonroadregistry.com`
	NS	`ns-tld3.charlestonroadregistry.com`
	NS	`ns-tld4.charlestonroadregistry.com`
	NS	`ns-tld5.charlestonroadregistry.com`
	SOA	`ns-tld1.charlestonroadregistry.com`cloud-dns-hostmaster@google.com serial=101427

🔒 HSTS Preload (+subdomains)

Up

in.notebook.app

Same first word

notebook.ro

notebook.es

notebook.in

notebook.pl

notebook.co.kr

notebook.bio

notebook.ge

notebook.ws

notebook.ch

notebook.systems

notebook.cc

notebook.uz

notebook.net.au

notebook.ae

notebook.lv

notebook.school

notebook.hu

notebook.ie

notebook.no

notebook.com.mx

notebook.life

notebook.ag

notebook.it

notebook.com.tr

notebook.rs

notebook.hr

notebook.io

notebook.vn

notebook.ca

notebook.com.tw

notebook.fm

notebook.in.ua

notebook.lviv.ua

notebook.net

notebook.sg

notebook.al

notebook.az

notebook.bg

notebook.am

notebook.fr

notebook.md

notebook.de

notebook.net.in

notebook.co

notebook.ru

notebook.technology

notebook.network

notebook.com.cn

notebook.org

notebook.ai

notebook.pro

notebook.com

notebook.tv

notebook.be

notebook.com.py

notebook.sk

notebook.lt

notebook.express

notebook.hk

notebook.biz

notebook.cl

notebook.gen.tr

notebook.si

notebook.cz

notebook.app

Similar names

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
notebook.app	pdns90.ultradns.com, ns1.zohocorp.com, ns41.zns-53.net, ns21.zns-53.net...	-

✅ Authoritative Response

Server: 156.154.66.90

NS records: pdns90.ultradns.com, ns1.zohocorp.com, ns41.zns-53.net, ns21.zns-53.net, pdns90.ultradns.net, ns31.zns-53.com, ns11.zns-53.com, pdns90.ultradns.biz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for notebook.app (unsigned zone)

⏱️ Timing

Total: 74ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`204.141.42.241`
NS	8	`NS1.ZOHOCORP.COM, pdns90.ultradns.biz...`
MX	2	`mx.zoho.com (pri: 10), mx2.zoho.com (pri: 20)`
SOA	1	`ns1.zohocorp.com dnsadmin.vtitan.com`