class.builders - dns.ninja

`class.builders`

DNSSEC	⚠️ Not signed
A	198.49.23.144^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.49.23.145^{🇺🇸 SQUARESPACE-1198.49.23.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.144^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
A	198.185.159.145^{🇺🇸 SQUARESPACE-1198.185.159.0/24 Squarespace, Inc. 459 Broadway, 5th Floor New York, NY 10013 US}
NS	`dns1.p01.nsone.net` ⭐
		A	2620:4d:4000:6259:7:1:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns1.p01.nsone.net`
		A	198.51.44.1^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns1.p01.nsone.net`
NS	`dns1.p09.nsone.net`
		A	2620:4d:4000:6259:7:9:0:1^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns1.p09.nsone.net`
			PTR	`ns4.demysdns.co.uk`
		A	198.51.44.9^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns1.p09.nsone.net`
			PTR	`ns4.demysdns.co.uk`
NS	`dns2.p09.nsone.net`
		A	2a00:edc0:6259:7:9::2^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`dns2.p09.nsone.net`
			PTR	`ns5.demysdns.co.uk`
		A	198.51.45.9^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`dns2.p09.nsone.net`
			PTR	`ns5.demysdns.co.uk`
NS	`dns3.p09.nsone.net`
		A	2620:4d:4000:6259:7:9:0:3^{🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48}
			PTR	`dns3.p09.nsone.net`
			PTR	`ns6.demysdns.co.uk`
		A	198.51.44.73^{🇺🇸 NSONE198.51.44.0/24 198.51.44.0}
			PTR	`dns3.p09.nsone.net`
			PTR	`ns6.demysdns.co.uk`
NS	`dns4.p09.nsone.net`
		A	2a00:edc0:6259:7:9::4^{🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2}
			PTR	`ns7.demysdns.com`
			PTR	`dns4.p09.nsone.net`
		A	198.51.45.73^{🇺🇸 NSONE198.51.45.0/24 198.51.45.0}
			PTR	`ns7.demysdns.com`
			PTR	`dns4.p09.nsone.net`
NS	`ns01.squarespacedns.com`
		A	45.54.22.1^{🇺🇸 NETACTUATE45.54.22.0/24}
			PTR	`ns01.squarespacedns.com`
NS	`ns02.squarespacedns.com`
		A	45.54.22.65^{🇺🇸 NETACTUATE45.54.22.0/24}
			PTR	`ns02.squarespacedns.com`
NS	`ns03.squarespacedns.com`
		A	45.54.22.129^{🇺🇸 NETACTUATE45.54.22.0/24}
			PTR	`ns03.squarespacedns.com`
NS	`ns04.squarespacedns.com`
		A	45.54.22.193^{🇺🇸 NETACTUATE45.54.22.0/24}
			PTR	`ns04.squarespacedns.com`
MX	`mx01.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
MX	`mx02.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
			PTR	`ic4-privaterelay.appleid.com`
			PTR	`smtp1.ic4-privaterelay.appleid.com`
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
TXT	`apple-domain=08DOhZG3I0spN7oL`
TXT	`v=spf1 include:icloud.com ~all`
SOA	`dns1.p01.nsone.net`hostmaster@nsone.net serial=1713708037

`builders`

	DNSSEC	🔒 Signed (DS record present)
	NS	`v0n0.nic.builders` ⭐
	NS	`v0n1.nic.builders`
	NS	`v0n2.nic.builders`
	NS	`v0n3.nic.builders`
	NS	`v2n0.nic.builders`
	NS	`v2n1.nic.builders`
	SOA	`v0n0.nic.builders`hostmaster@donuts.email serial=1781352708

Same first word

class.net

class.hu

class.ro

class.net.nz

class.co.jp

class.zone

class.es

class.hr

class.on.ca

class.community

class.agency

class.cn

class.rocks

class.services

class.cz

class.com.br

class.la

class.ca

class.solutions

class.com.pe

class.lk

class.edu.vn

class.net.br

class.pe

class.bg

class.ai

class.business

class.ai.in

class.se

class.ly

class.su

class.rs

class.de

class.co

class.am

class.it

class.works

class.systems

class.technology

class.network

class.com.py

class.info

class.do

class.tax

class.world

class.expert

class.co.at

class.msk.ru

class.so

class.report

class.al

class.eu

class.st

class.id

class.biz

class.com.tr

class.gr

class.org

class.us

class.com

class.bet

class.ps

class.edu.pl

class.com.mx

class.dk

class.builders

class.capital

class.watch

class.srl

class.com.cn

class.lv

class.cash

class.management

class.wiki

class.ch

class.com.tw

class.guide

class.kr

class.cc

class.mba

class.tech

class.digital

class.sk

class.run

class.today

class.immo

class.me

class.im

class.cl

class.ma

class.adobeaemcloud.com

class.com.au

class.nl

class.io

class.fr

class.tel

Similar names

slsca.com

sslca.com

ascsl.net

sscal.com

aclss.com

ssalc.org

saslc.com

casls.com

acssl.com

salsc.com

alscs.com

calss.net.cn

lscsa.de

lacss.org

slacs.net

slsac.com

acsls.com

alcss.com

saslc.ca

cslsa.org

scasl.com

acssl.lu

slacs.org

clssa.net

clssa.co.za

salcs.com

cslsa.com

slacs.com

ascls.com

salcs.org

cssla.org

asslc.fr

lcass.com

slcas.org

sacsl.co

acssl.org

scals.cn

calss.com

scsla.org

DNS History

24 records (15 active, 9 former)

●NSdns1.p01.nsone.net2026-03-11 → 2026-06-13 · 3 obs

○ 2017-09-04 12:41:04
● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●NSdns1.p09.nsone.net2026-03-11 → 2026-06-13 · 3 obs

○ 2017-09-04 12:41:04
● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●NSdns2.p09.nsone.net2026-03-11 → 2026-06-13 · 3 obs

○ 2017-09-04 12:41:04
● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●NSdns3.p09.nsone.net2026-03-11 → 2026-06-13 · 3 obs

○ 2017-09-04 12:41:04
● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●NSdns4.p09.nsone.net2026-03-11 → 2026-06-13 · 3 obs

○ 2017-09-04 12:41:04
● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

○NSns-cloud-e1.googledomains.com2016-12-10 → 2017-09-04 · 4 obs

● 2016-12-10 18:10:28
● 2017-09-04 12:41:04
○ 2026-03-11 21:48:42
○ 2026-06-13 12:46:30

○NSns-cloud-e2.googledomains.com2016-12-10 → 2017-09-04 · 4 obs

● 2016-12-10 18:10:28
● 2017-09-04 12:41:04
○ 2026-03-11 21:48:42
○ 2026-06-13 12:46:30

○NSns-cloud-e3.googledomains.com2016-12-10 → 2017-09-04 · 4 obs

● 2016-12-10 18:10:28
● 2017-09-04 12:41:04
○ 2026-03-11 21:48:42
○ 2026-06-13 12:46:30

○NSns-cloud-e4.googledomains.com2016-12-10 → 2017-09-04 · 4 obs

● 2016-12-10 18:10:28
● 2017-09-04 12:41:04
○ 2026-03-11 21:48:42
○ 2026-06-13 12:46:30

●NSns01.squarespacedns.com2026-03-11 → 2026-06-13 · 3 obs

○ 2017-09-04 12:41:04
● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●NSns02.squarespacedns.com2026-03-11 → 2026-06-13 · 3 obs

○ 2017-09-04 12:41:04
● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●NSns03.squarespacedns.com2026-03-11 → 2026-06-13 · 3 obs

○ 2017-09-04 12:41:04
● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●NSns04.squarespacedns.com2026-03-11 → 2026-06-13 · 3 obs

○ 2017-09-04 12:41:04
● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

○MXalt1.gmr-smtp-in.l.google.com2016-12-10 → 2017-09-04 · 4 obs

● 2016-12-10 18:10:28
● 2017-09-04 12:41:04
○ 2026-03-11 21:48:42
○ 2026-06-13 12:46:30

○MXalt2.gmr-smtp-in.l.google.com2016-12-10 → 2017-09-04 · 4 obs

● 2016-12-10 18:10:28
● 2017-09-04 12:41:04
○ 2026-03-11 21:48:42
○ 2026-06-13 12:46:30

○MXalt3.gmr-smtp-in.l.google.com2016-12-10 → 2017-09-04 · 4 obs

● 2016-12-10 18:10:28
● 2017-09-04 12:41:04
○ 2026-03-11 21:48:42
○ 2026-06-13 12:46:30

○MXalt4.gmr-smtp-in.l.google.com2016-12-10 → 2017-09-04 · 4 obs

● 2016-12-10 18:10:28
● 2017-09-04 12:41:04
○ 2026-03-11 21:48:42
○ 2026-06-13 12:46:30

○MXgmr-smtp-in.l.google.com2016-12-10 → 2017-09-04 · 4 obs

● 2016-12-10 18:10:28
● 2017-09-04 12:41:04
○ 2026-03-11 21:48:42
○ 2026-06-13 12:46:30

●MXmx01.mail.icloud.com2026-03-11 → 2026-06-13 · 3 obs

○ 2017-09-04 12:41:04
● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●MXmx02.mail.icloud.com2026-03-11 → 2026-06-13 · 3 obs

○ 2017-09-04 12:41:04
● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●A198.185.159.1442026-03-11 → 2026-06-13 · 2 obs

● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●A198.185.159.1452026-03-11 → 2026-06-13 · 2 obs

● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●A198.49.23.1442026-03-11 → 2026-06-13 · 2 obs

● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

●A198.49.23.1452026-03-11 → 2026-06-13 · 2 obs

● 2026-03-11 21:48:42
● 2026-06-13 12:46:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
builders	v0n3.nic.builders, v2n0.nic.builders, v2n1.nic.builders, v0n0.nic.builders...	12 records
class.builders	ns03.squarespacedns.com, dns3.p09.nsone.net, dns2.p09.nsone.net, dns1.p09.nsone.net...	-

✅ Authoritative Response

Server:45.54.22.129

NS records: ns03.squarespacedns.com, dns3.p09.nsone.net, dns2.p09.nsone.net, dns1.p09.nsone.net, dns4.p09.nsone.net, ns02.squarespacedns.com, ns01.squarespacedns.com, ns04.squarespacedns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for class.builders (unsigned zone)

⏱️ Timing

Total: 1612ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`198.185.159.145, 198.49.23.144...`
NS	8	`dns1.p09.nsone.net, dns2.p09.nsone.net...`
MX	2	`mx01.mail.icloud.com (pri: 10), mx02.mail.icloud.com (pri: 10)`
TXT	2	`apple-domain=08DOhZG3I0spN7oL, v=spf1 include:icloud.com ~all`
SOA	1	`dns1.p01.nsone.net hostmaster.nsone.net`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (v0n0.nic.builders, v0n1.nic.builders, v0n2.nic.builders...)

Analysis

IP Addresses

class.builders points to four IP numbers: 198.49.23.144, 198.49.23.145, 198.185.159.144 and 198.185.159.145.

Additional host names — wizardcleave.com, nathankenyon.com, omnilabs.tech and two others — share IP numbers with class.builders.

Name Servers

class.builders carries NS records listing 9 name servers — ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com and 6 others.

There is at least partial name server overlap between class.builders and other domains — chandlertsai.com, spindel-kunsthandwerk.de, mendezwtf.com and two more among them.

These name servers regularly appear alongside ns04.squarespacedns.com, dns1.p01.nsone.net, dns1.p09.nsone.net and 7 other name servers in NS record sets.

Host names with two IP numbers:

The A records for dns1.p01.nsone.net return 198.51.44.1 and 2620:4d:4000:6259:7:1:0:1.

The A records for dns1.p09.nsone.net return 198.51.44.9 and 2620:4d:4000:6259:7:9:0:1.

The A records for dns2.p09.nsone.net return 198.51.45.9 and 2a00:edc0:6259:7:9::2.

The A records for dns3.p09.nsone.net return 198.51.44.73 and 2620:4d:4000:6259:7:9:0:3.

The A records for dns4.p09.nsone.net return 198.51.45.73 and 2a00:edc0:6259:7:9::4.

Host names with one IP number:

ns01.squarespacedns.com resolves to the IP address 45.54.22.1.

ns02.squarespacedns.com resolves to the IP address 45.54.22.65.

ns03.squarespacedns.com resolves to the IP address 45.54.22.129.

ns04.squarespacedns.com resolves to the IP address 45.54.22.193.

Mail Servers

class.builders has two mail servers: mx01.mail.icloud.com and mx02.mail.icloud.com.

class.builders shares the same mail server setup as other domains, including oostie.nl, brianlavelle.scot, richon.net and two others.

class.builders shares mail servers — at least in part — with other domains, including thekendallfamily.org, demux.eu, techit.org and two others.

Host names with 6 IP numbers:

mx01.mail.icloud.com maps to 17.42.251.62, 17.56.9.31, 17.57.152.5 and 3 additional IP addresses.

mx02.mail.icloud.com maps to 17.42.251.62, 17.56.9.31, 17.57.152.5 and 3 additional IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com each have 17.42.251.62 IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com each have 17.56.9.31 IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com each have 17.57.152.5 IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com each have 17.57.154.33 IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com each have 17.57.155.25 IP addresses.

mx01.mail.icloud.com and mx02.mail.icloud.com each have 17.57.156.30 IP addresses.