cssu.org - dns.ninja

cssu.org

DNSSEC⚠️ Not signed
A52.206.191.232🇺🇸 Amazon52.200.0.0/13 EC2 IAD prefix
PTRec2-52-206-191-232.compute-1.amazonaws.com
NSns73.worldnic.com ⭐
A162.159.26.27Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
NSns74.worldnic.com
A162.159.27.78Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c23::1a🇺🇸 Google2607:f8b0:4004::/48
PTRyuiadrs-in-f26.1e100.net
A192.178.155.26🇺🇸 Google192.178.155.0/24
PTRyuiadrs-in-f26.1e100.net
MXalt1.aspmx.l.google.com(20)
A2800:3f0:4003:c14::1a🇨🇱 Google2800:3f0:4003::/48
A192.178.234.27🇺🇸 Google192.178.0.0/15
PTRncsclj-in-f27.1e100.net
MXalt2.aspmx.l.google.com(20)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXaspmx2.googlemail.com(30)
A2800:3f0:4003:c14::1a🇨🇱 Google2800:3f0:4003::/48
A192.178.234.27🇺🇸 Google192.178.0.0/15
PTRncsclj-in-f27.1e100.net
MXaspmx3.googlemail.com(30)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXaspmx4.googlemail.com(30)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXaspmx5.googlemail.com(30)
A2a00:1450:400c:c23::1a🇧🇪 Google2a00:1450:400c::/48
PTRyubrupd-in-f26.1e100.net
A172.253.157.26🇺🇸 Google172.253.0.0/16
PTRyubrupd-in-f26.1e100.net
TXTv=spf1 include:_spf.google.com ~all
TXTgoogle-site-verification=ELII-smt1R3WyqmXfSlQTASiT9GQeti9BIkTIpqgqOw
TXTgoogle-site-verification=kGTAf8QloZKfo7zTPeclrIQSfOFfWSnnGKDNowAp6eo
SOANS73.WORLDNIC.COMnamehost@WORLDNIC.COM serial=117032414

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1786630438

Subdomains

ftp.cssu.org
dns2.cssu.org
firstclass.cssu.org
mail.cssu.org
www2.cssu.org

Same first word

cssu.de
cssu.com
cssu.org
cssu.org.au
cssu.ca
cssu.net
cssu.org.uk

Similar names

scus.gov
scsu.us
susc.de
ussc.jp
sscu.ir
sucs.es
scus.net
uscs.cc
uscs.cn
ussc.ws
sucs.at
uscs.fr
ucss.cn
cuss.ru
uscs.ru
ussc.ru
uscs.edu.br
susc.co.kr
scus.io
ucss.pe
susc.co
scsu.org.rs
ucss.world
sucs.sakura.ne.jp
susc.jp
cuss.info
uscs.tech
ssuc.lt
scsu.eu
cuss.us
scsu.com
cuss.org
scsu.edu
sucs.jp
ucss.ru
cuss.co
scsu.ca
uscs.de
susc.sg
susc.ir
uscs.net
ussc.nl
sucs.org.uy
sscu.org
csus.ru
csus.dk
cuss.nl
csus.(0x787878)
csus.com
ucss.ge
ucss.pl
ucss.org
ussc.ch
scsu.de
sucs.fr
cuss.biz
uscs.com
uscs.co.nz
ucss.net
susc.ru
ussc.eu
ucss.us
uscs.org
uscs.in
uscs.or.kr
ucss.co.uk
sucs.org
susc.ca
scus.com
cuss.it
ussc.edu.au
ussc.net
csus.net
susc.kr
susc.ac.ir
cuss.net
susc.org
ssuc.ru
sscu.net
scus.de
csus.co.kr
sscu.mobi
sscu.coop
csus.org
ussc.at
susc.su
ucss.biz
sscu.ch
csus.edu
ussc.de
ussc.in
ussc.co
ussc.or.kr
ucss.de
cuss.com
sucs.cn

DNS History

11 records (10 active, 1 former)

20162017201820192020202120222023202420252026NSns73.worldnic.comns74.worldnic.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.comA52.206.191.232209.114.152.135
●NSns73.worldnic.com2015-09-01 → 2026-08-13 · 2 obs
● 2015-09-01 12:09:52
● 2026-08-13 14:45:02
●NSns74.worldnic.com2015-09-01 → 2026-08-13 · 2 obs
● 2015-09-01 12:09:52
● 2026-08-13 14:45:02
●MXalt1.aspmx.l.google.com2015-09-01 → 2026-08-13 · 2 obs
● 2015-09-01 12:09:52
● 2026-08-13 14:45:02
●MXalt2.aspmx.l.google.com2015-09-01 → 2026-08-13 · 2 obs
● 2015-09-01 12:09:52
● 2026-08-13 14:45:02
●MXaspmx.l.google.com2015-09-01 → 2026-08-13 · 2 obs
● 2015-09-01 12:09:52
● 2026-08-13 14:45:02
●MXaspmx2.googlemail.com2015-09-01 → 2026-08-13 · 2 obs
● 2015-09-01 12:09:52
● 2026-08-13 14:45:02
●MXaspmx3.googlemail.com2015-09-01 → 2026-08-13 · 2 obs
● 2015-09-01 12:09:52
● 2026-08-13 14:45:02
●MXaspmx4.googlemail.com2015-09-01 → 2026-08-13 · 2 obs
● 2015-09-01 12:09:52
● 2026-08-13 14:45:02
●MXaspmx5.googlemail.com2015-09-01 → 2026-08-13 · 2 obs
● 2015-09-01 12:09:52
● 2026-08-13 14:45:02
○A209.114.152.1352015-09-01 → 2016-12-23 · 4 obs
● 2015-09-01 12:09:52
● 2016-12-23 21:06:20
○ 2026-02-15 19:46:52
○ 2026-08-13 14:45:02
●A52.206.191.2322026-02-15 → 2026-08-13 · 3 obs
○ 2016-12-23 21:06:20
● 2026-02-15 19:46:52
● 2026-08-13 14:45:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgd0.org.afilias-nst.org, b0.org.afilias-nst.org, b2.org.afilias-nst.org-
cssu.orgns73.worldnic.com, ns74.worldnic.com-

✅ Authoritative Response

Server:162.159.27.78

NS records: ns73.worldnic.com, ns74.worldnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cssu.org (unsigned zone)

⏱️ Timing

Total: 431ms | Queries: -

📄 Records

TypeCountSample Data
A152.206.191.232
NS2ns73.worldnic.com, ns74.worldnic.com
MX7aspmx5.googlemail.com (pri: 30), aspmx3.googlemail.com (pri: 30)...
TXT3v=spf1 include:_spf.google.com ~all, google-site-verification=ELII-smt1R3Wyqm...
SOA1NS73.WORLDNIC.COM namehost.WORLDNIC.COM

Analysis

Hierarchy

The domain cssu.org serves as parent to ftp.cssu.org, dns2.cssu.org, firstclass.cssu.org, mail.cssu.org and www2.cssu.org.

IP Addresses

cssu.org directs to one IP number, which is 52.206.191.232.

Among the host names that share IP numbers with cssu.org are ekschools.net, cmsd.k12.ms.us, lisd-mail.lancasterisd.org and two others.

Name Servers

The NS records for cssu.org delegate to ns73.worldnic.com and ns74.worldnic.com.

cssu.org has the same name server delegation as a number of other domains, such as idabelps.org, westernhandmadefurnitue.net, internationalnetworks.org and two more.

Each of ns73.worldnic.com and ns74.worldnic.com has one IP address: ns73.worldnic.com uses 162.159.26.27 and ns74.worldnic.com uses 162.159.27.78.

Mail Servers

cssu.org uses 7 mail servers for delivery: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.

cssu.org shares at least some of its mail servers with other domains — for example fut.hu, dcmillwork.com, e-payplus.com.my and two more.

It is common to find these mail servers paired with mail servers aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more.

Hosts with two IP numbers each:

The A records for aspmx2.googlemail.com return 192.178.234.27 and 2800:3f0:4003:c14::1a.

The A records for aspmx3.googlemail.com return 172.253.116.27 and 2a00:1450:400b:c02::1a.

The A records for aspmx4.googlemail.com return 192.178.223.26 and 2a00:1450:4009:c0f::1b.

The A records for aspmx5.googlemail.com return 172.253.157.26 and 2a00:1450:400c:c23::1a.

The A records for aspmx.l.google.com return 192.178.155.26 and 2607:f8b0:4004:c23::1a.

The A records for alt1.aspmx.l.google.com return 192.178.234.27 and 2800:3f0:4003:c14::1a.

The A records for alt2.aspmx.l.google.com return 172.253.116.27 and 2a00:1450:400b:c02::1a.

aspmx2.googlemail.com and alt1.aspmx.l.google.com each have 2800:3f0:4003:c14::1a IP addresses.

aspmx2.googlemail.com and alt1.aspmx.l.google.com each have 192.178.234.27 IP addresses.

aspmx3.googlemail.com and alt2.aspmx.l.google.com each have 2a00:1450:400b:c02::1a IP addresses.

aspmx3.googlemail.com and alt2.aspmx.l.google.com each have 172.253.116.27 IP addresses.