css.org - robtex.com

css.org

DNSSEC⚠️ Not signed
A54.153.229.39🇦🇺 Amazon54.153.128.0/17 EC2 SYD prefix
PTRec2-54-153-229-39.ap-southeast-2.compute.amazonaws.com
NSns1.voelker.com ⭐
A173.164.61.243🇺🇸 COMCAST-IBONE173.160.0.0/13 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054
PTRweb3.voelker.com
NSns1.no-ip.com
A2a07:dc00:1810::53🇺🇸 AS299972a07:dc00:1810::/44
PTRns1.no-ip.com
A194.62.181.53🇺🇸 AS29997194.62.181.0/24
PTRns1.no-ip.com
NSns2.no-ip.com
A2a07:dc00:180::53🇺🇸 AS299972a07:dc00:180::/44
PTRns2.no-ip.com
A194.62.180.53🇺🇸 AS29997194.62.180.0/24
PTRns2.no-ip.com
NSns3.no-ip.com
A2a07:dc00:2550::53🇺🇸 AS299972a07:dc00:2550::/44
PTRns3.no-ip.com
A204.16.255.53🇺🇸 AS29997204.16.255.0/24 Vultr Customer Route
PTRns3.no-ip.com
NSns4.no-ip.com
A2620:0:2e64::53🇺🇸 AS299972620:0:2e64::/48 Vitalwerks Internet Solutions, LLC dba No-IP
PTRns4.no-ip.com
A204.16.254.53🇺🇸 AS29997204.16.254.0/24 Vultr Customer Route
PTRns4.no-ip.com
MXcss-org.mail.protection.outlook.com ⭐
A2a01:111:f403:c902::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-sj2pr05cu00300.inbound.protection.outlook.com
A2a01:111:f403:c902::16🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-byapr04cu00306.inbound.protection.outlook.com
A2a01:111:f403:c946::🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-ch5pr02cu00200.inbound.protection.outlook.com
A2a01:111:f403:f804::2🇺🇸 Microsoft2a01:111:f000::/36
PTRmail-co1pr05cu00402.inbound.protection.outlook.com
A52.101.9.11🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-bl2pr04cu00103.inbound.protection.outlook.com
A52.101.41.4🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sj2pr05cu00204.inbound.protection.outlook.com
A52.101.42.14🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-mw2pr04cu00106.inbound.protection.outlook.com
A52.101.194.3🇺🇸 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-ch1pr04cu00103.inbound.protection.outlook.com
TXTgoogle-site-verification=omYj9jbwSFFm1Dp901DLOIuR1-B4I5owjzbUCD8DARQ
TXTGoogle-site-verification=8dmA3Xc-uQqbHx1VhRIZPLUTQSM3Xt3inlHxrZuajME
TXTv=spf1 a mx ip4:192.254.120.185 ip4:158.123.158.24 ip4:70.167.16.50 ip4:38.75...
TXTapple-domain-verification=oAuAI5QRaFGOfLAL
TXTklaviyo-site-verification=XHypJM
SOAns1.voelker.comrvoelker@voelker.com serial=1360823733

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=1778494299
WOT: SAFE (68/100)

Same first word

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DNS History

18 records (7 active, 11 former)

20162017201820192020202120222023202420252026NSns1.no-ip.comns1.voelker.comns2.no-ip.comns3.no-ip.comns4.no-ip.comns1.pcisys.netMXcss-org.mail.protection.outlook.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comA54.153.229.39161.47.21.21423.185.0.12620:12a:8000::12620:12a:8001::154.67.70.17
●NSns1.no-ip.com2026-02-14 → 2026-05-11 · 3 obs
○ 2021-06-21 06:50:16
● 2026-02-14 16:56:30
● 2026-05-11 10:35:14
○NSns1.pcisys.net2015-08-27 → 2021-06-21 · 4 obs
● 2015-08-27 00:02:06
● 2021-06-21 06:50:16
○ 2026-02-14 16:56:30
○ 2026-05-11 10:35:14
●NSns1.voelker.com2015-08-27 → 2026-05-11 · 2 obs
● 2015-08-27 00:02:06
● 2026-05-11 10:35:14
●NSns2.no-ip.com2026-02-14 → 2026-05-11 · 3 obs
○ 2021-06-21 06:50:16
● 2026-02-14 16:56:30
● 2026-05-11 10:35:14
●NSns3.no-ip.com2026-02-14 → 2026-05-11 · 3 obs
○ 2021-06-21 06:50:16
● 2026-02-14 16:56:30
● 2026-05-11 10:35:14
●NSns4.no-ip.com2026-02-14 → 2026-05-11 · 3 obs
○ 2021-06-21 06:50:16
● 2026-02-14 16:56:30
● 2026-05-11 10:35:14
○MXalt1.aspmx.l.google.com2015-08-27 → 2021-06-21 · 4 obs
● 2015-08-27 00:02:06
● 2021-06-21 06:50:16
○ 2026-02-14 16:56:30
○ 2026-05-11 10:35:14
○MXalt2.aspmx.l.google.com2015-08-27 → 2021-06-21 · 4 obs
● 2015-08-27 00:02:06
● 2021-06-21 06:50:16
○ 2026-02-14 16:56:30
○ 2026-05-11 10:35:14
○MXaspmx.l.google.com2015-08-27 → 2021-06-21 · 4 obs
● 2015-08-27 00:02:06
● 2021-06-21 06:50:16
○ 2026-02-14 16:56:30
○ 2026-05-11 10:35:14
○MXaspmx2.googlemail.com2015-08-27 → 2021-06-21 · 4 obs
● 2015-08-27 00:02:06
● 2021-06-21 06:50:16
○ 2026-02-14 16:56:30
○ 2026-05-11 10:35:14
○MXaspmx3.googlemail.com2015-08-27 → 2021-06-21 · 4 obs
● 2015-08-27 00:02:06
● 2021-06-21 06:50:16
○ 2026-02-14 16:56:30
○ 2026-05-11 10:35:14
●MXcss-org.mail.protection.outlook.com2026-02-14 → 2026-05-11 · 3 obs
○ 2021-06-21 06:50:16
● 2026-02-14 16:56:30
● 2026-05-11 10:35:14
○A161.47.21.2142016-05-24 → 2017-07-31 · 5 obs
○ 2016-04-29 03:20:10
● 2016-05-24 20:40:26
● 2017-07-31 10:50:28
○ 2020-11-28 06:08:46
○ 2026-05-11 10:35:14
○A23.185.0.12020-11-28 → 2021-06-21 · 5 obs
○ 2017-07-31 10:50:28
● 2020-11-28 06:08:46
● 2021-06-21 06:50:16
○ 2026-02-14 16:56:30
○ 2026-05-11 10:35:14
○A2620:12a:8000::12020-11-28 → 2021-06-21 · 5 obs
○ 2017-07-31 10:50:28
● 2020-11-28 06:08:46
● 2021-06-21 06:50:16
○ 2026-02-14 16:56:30
○ 2026-05-11 10:35:14
○A2620:12a:8001::12020-11-28 → 2021-06-21 · 5 obs
○ 2017-07-31 10:50:28
● 2020-11-28 06:08:46
● 2021-06-21 06:50:16
○ 2026-02-14 16:56:30
○ 2026-05-11 10:35:14
●A54.153.229.392026-02-14 → 2026-05-11 · 3 obs
○ 2021-06-21 06:50:16
● 2026-02-14 16:56:30
● 2026-05-11 10:35:14
○A54.67.70.172015-08-27 → 2016-04-29 · 4 obs
● 2015-08-27 00:02:06
● 2016-04-29 03:20:10
○ 2016-05-24 20:40:26
○ 2026-05-11 10:35:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
css.orgns4.no-ip.com, ns2.no-ip.com, ns1.no-ip.com, ns1.voelker.com...-

✅ Authoritative Response

Server:204.16.254.53

NS records: ns4.no-ip.com, ns2.no-ip.com, ns1.no-ip.com, ns1.voelker.com, ns3.no-ip.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for css.org (unsigned zone)

⏱️ Timing

Total: 694ms | Queries: -

📄 Records

TypeCountSample Data
A154.153.229.39
NS5ns4.no-ip.com, ns3.no-ip.com...
MX1css-org.mail.protection.outlook.com (pri
TXT5v=spf1 a mx ip4:192.254.120.185 ip4:158., apple-domain-verification=oAuAI5QRaFGOfL...
SOA1ns1.voelker.com rvoelker.voelker.com

Analysis

IP Addresses

css.org points to a single IP number: 54.153.229.39.

other host names for instance rcc.nsw.edu.au, thebrightonschool.org, encounter.sa.edu.au, haileyburyrendall.com.au and cathedralcollege.vic.edu.au share IP numbers with css.org.

Name Servers

css.org is delegated to five name servers: ns1.no-ip.com, ns2.no-ip.com, ns3.no-ip.com, ns4.no-ip.com and ns1.voelker.com.

css.org at least partially shares name servers with other domains, for instance cha7lie.com, communityschoolnaples.org, dasimon.com, greenfield-computer.com and sundaravel.com.

These name servers are commonly used with ns5.no-ip.com, static-1.no-ip.com, static-2.no-ip.com and static-3.no-ip.com.

Host names with two IP numbers:

ns1.no-ip.com resolves to 2a07:dc00:1810::53 and 194.62.181.53.

ns2.no-ip.com resolves to 2a07:dc00:180::53 and 194.62.180.53.

ns3.no-ip.com resolves to 2a07:dc00:2550::53 and 204.16.255.53.

ns4.no-ip.com resolves to 2620:0:2e64::53 and 204.16.254.53.

Host names with a single IP:

ns1.voelker.com resolves to 173.164.61.243.

Mail Servers

css.org is handled by a single mail server, css-org.mail.protection.outlook.com.

Host name css-org.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c902::, 2a01:111:f403:c902::16, 2a01:111:f403:c946::, 2a01:111:f403:f804::2, 52.101.9.11, 52.101.41.4, 52.101.42.14 and 52.101.194.3.