tertiarycourses.com.sg - robtex.com

tertiarycourses.com.sg

DNSSEC⚠️ Not signed
A76.13.180.29🇺🇸 IIHOS00176.13.176.0/20 Hostinger MY
PTRsrv1331396.hstgr.cloud
NSdns1.gocloudeasy.com ⭐ ⚠️ Not in parent delegation
A185.136.96.100🇺🇸 CLOUDNSNET185.136.96.0/24 Cloud DNS Ltd
PTRdns31.cloudns.net
NSdns1.cldy.com ⚠️ Not in zone NS records
A185.136.96.100🇺🇸 CLOUDNSNET185.136.96.0/24 Cloud DNS Ltd
PTRdns31.cloudns.net
NSdns2.cldy.com ⚠️ Not in zone NS records
A185.136.97.100CLOUDNSNET185.136.97.0/24 Cloud DNS Ltd
PTRdns32.cloudns.net
NSdns2.gocloudeasy.com ⚠️ Not in parent delegation
A185.136.97.100CLOUDNSNET185.136.97.0/24 Cloud DNS Ltd
PTRdns32.cloudns.net
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c21::1b🇺🇸 Google2607:f8b0:4004::/48
PTRpe-in-f27.1e100.net
A64.233.180.26🇺🇸 Google64.233.180.0/24
PTRon-in-f26.1e100.net
PTRpe-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1a🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f26.1e100.net
A172.253.116.26🇺🇸 Google172.253.116.0/24
PTRdj-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1a🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f26.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c23::1b🇧🇪 Google2a00:1450:400c::/48
PTRyubrupd-in-f27.1e100.net
A172.253.157.27🇺🇸 Google172.253.0.0/16
PTRyubrupd-in-f27.1e100.net
TXTmailerlite-domain-verification=584a13ed5fa043e1c65ac48e14e6004b516d7c92
SOAdns1.gocloudeasy.comhostmaster@gocloudeasy.com 2026-06-11 #18

com.sg

DNSSEC⚠️ Not signed
NSds.sgnic.sg ⭐
NSdsany2.sgnic.sg ⚠️ Not in parent delegation
NSdsany3.sgnic.sg ⚠️ Not in parent delegation
NSdsany4.sgnic.sg ⚠️ Not in parent delegation
NSpch.sgzones.sg ⚠️ Not in parent delegation
SOAds.sgnic.sgdna@sgnic.sg serial=2608051630

Previously MX for

tertiarycourses.com.sg

Subdomains

www.tertiarycourses.com.sg

Same first word

tertiarycourses.com.sg
tertiarycourses.in

DNS History

19 records (10 active, 9 former)

20162017201820192020202120222023202420252026NSdns1.cldy.comdns1.gocloudeasy.comdns2.cldy.comdns2.gocloudeasy.comns1.cldy.comns1.vodien.comns2.cldy.comns2.vodien.comns3.cldy.comns3.vodien.comMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comtertiarycourses.com.sgA76.13.180.29103.15.234.116207.148.74.251
●NSdns1.cldy.com2026-06-13 → 2026-08-05 · 3 obs
○ 2026-04-23 23:15:56
● 2026-06-13 11:05:04
● 2026-08-05 17:10:44
●NSdns1.gocloudeasy.com2026-06-13 → 2026-08-05 · 3 obs
○ 2026-04-23 23:15:56
● 2026-06-13 11:05:04
● 2026-08-05 17:10:44
●NSdns2.cldy.com2026-06-13 → 2026-08-05 · 3 obs
○ 2026-04-23 23:15:56
● 2026-06-13 11:05:04
● 2026-08-05 17:10:44
●NSdns2.gocloudeasy.com2026-06-13 → 2026-08-05 · 3 obs
○ 2026-04-23 23:15:56
● 2026-06-13 11:05:04
● 2026-08-05 17:10:44
○NSns1.cldy.com2026-02-25 → 2026-04-23 · 5 obs
○ 2017-04-20 09:26:18
● 2026-02-25 10:03:10
● 2026-04-23 23:15:56
○ 2026-06-13 11:05:04
○ 2026-08-05 17:10:44
○NSns1.vodien.com2015-07-05 → 2017-04-20 · 4 obs
● 2015-07-05 21:56:48
● 2017-04-20 09:26:18
○ 2026-02-25 10:03:10
○ 2026-08-05 17:10:44
○NSns2.cldy.com2026-02-25 → 2026-04-23 · 5 obs
○ 2017-04-20 09:26:18
● 2026-02-25 10:03:10
● 2026-04-23 23:15:56
○ 2026-06-13 11:05:04
○ 2026-08-05 17:10:44
○NSns2.vodien.com2015-07-05 → 2017-04-20 · 4 obs
● 2015-07-05 21:56:48
● 2017-04-20 09:26:18
○ 2026-02-25 10:03:10
○ 2026-08-05 17:10:44
○NSns3.cldy.com2026-02-25 → 2026-04-23 · 5 obs
○ 2017-04-20 09:26:18
● 2026-02-25 10:03:10
● 2026-04-23 23:15:56
○ 2026-06-13 11:05:04
○ 2026-08-05 17:10:44
○NSns3.vodien.com2015-07-05 → 2017-04-20 · 4 obs
● 2015-07-05 21:56:48
● 2017-04-20 09:26:18
○ 2026-02-25 10:03:10
○ 2026-08-05 17:10:44
●MXalt1.aspmx.l.google.com2026-02-25 → 2026-08-05 · 3 obs
○ 2017-04-20 09:26:18
● 2026-02-25 10:03:10
● 2026-08-05 17:10:44
●MXalt2.aspmx.l.google.com2026-02-25 → 2026-08-05 · 3 obs
○ 2017-04-20 09:26:18
● 2026-02-25 10:03:10
● 2026-08-05 17:10:44
●MXalt3.aspmx.l.google.com2026-02-25 → 2026-08-05 · 3 obs
○ 2017-04-20 09:26:18
● 2026-02-25 10:03:10
● 2026-08-05 17:10:44
●MXalt4.aspmx.l.google.com2026-02-25 → 2026-08-05 · 3 obs
○ 2017-04-20 09:26:18
● 2026-02-25 10:03:10
● 2026-08-05 17:10:44
●MXaspmx.l.google.com2026-02-25 → 2026-08-05 · 3 obs
○ 2017-04-20 09:26:18
● 2026-02-25 10:03:10
● 2026-08-05 17:10:44
○MXtertiarycourses.com.sg2015-07-05 → 2017-04-20 · 4 obs
● 2015-07-05 21:56:48
● 2017-04-20 09:26:18
○ 2026-02-25 10:03:10
○ 2026-08-05 17:10:44
○A103.15.234.1162015-07-05 → 2017-04-20 · 4 obs
● 2015-07-05 21:56:48
● 2017-04-20 09:26:18
○ 2026-02-25 10:03:10
○ 2026-08-05 17:10:44
○A207.148.74.2512026-02-25 → 2026-04-23 · 5 obs
○ 2017-04-20 09:26:18
● 2026-02-25 10:03:10
● 2026-04-23 23:15:56
○ 2026-06-13 11:05:04
○ 2026-08-05 17:10:44
●A76.13.180.292026-06-13 → 2026-08-05 · 3 obs
○ 2026-04-23 23:15:56
● 2026-06-13 11:05:04
● 2026-08-05 17:10:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sgns4.apnic.net, pch.sgzones.sg, dsany2.sgnic.sg, dsany3.sgnic.sg...10 records
tertiarycourses.com.sgdns2.cldy.com, dns1.cldy.com-

✅ Authoritative Response

Server:185.136.96.100

NS records: dns2.cldy.com, dns1.cldy.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tertiarycourses.com.sg (unsigned zone)

⏱️ Timing

Total: 614ms | Queries: -

📄 Records

TypeCountSample Data
A176.13.180.29
NS2dns1.gocloudeasy.com, dns2.gocloudeasy.com
MX5alt4.aspmx.l.google.com (pri: 10), aspmx.l.google.com (pri: 1)...
TXT1mailerlite-domain-verification=584a13ed5
SOA1dns1.gocloudeasy.com hostmaster.gocloude

📌 Glue Records Collected

Total: 10

In-bailiwick: 8 (pch.sgzones.sg, dsany2.sgnic.sg, dsany3.sgnic.sg...)

Out-of-bailiwick: 2 (ns4.apnic.net, ns4.apnic.net)

Analysis

Hierarchy

tertiarycourses.com.sg serves as the parent of www.tertiarycourses.com.sg.

IP Addresses

tertiarycourses.com.sg has exactly one IP address — 76.13.180.29.

Additional host names — including vps.tertiaryinfotech.com and tertiaryinfotech.com — share IP numbers with tertiarycourses.com.sg.

Name Servers

Four name servers handle the delegation for tertiarycourses.com.sg: dns1.cldy.com, dns2.cldy.com, dns1.gocloudeasy.com and dns2.gocloudeasy.com.

tertiarycourses.com.sg has at least partial name server overlap with other domains, such as tialocgroup.com, teoenmingcorporation.com, chat.sg and two others.

Four host names, each with a single IP address: dns1.cldy.com → 185.136.96.100, dns2.cldy.com → 185.136.97.100, dns1.gocloudeasy.com → 185.136.96.100 and dns2.gocloudeasy.com → 185.136.97.100.

Both dns1.cldy.com and dns1.gocloudeasy.com resolve to 185.136.96.100 IP addresses each.

Both dns2.cldy.com and dns2.gocloudeasy.com resolve to 185.136.97.100 IP addresses each.

Mail Servers

Mail for tertiarycourses.com.sg is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

At least some of the mail servers used by tertiarycourses.com.sg are shared with other domains: ns500754.ns500754.ns500731.ns500671.ns500742.ns500671.ns500742.ns500704.ns500705.ns500704.ns500704.ns500678.ns500649.ns500291.ns500291.ns500291.ns500131.lustychickser.com, ns500758.ns500758.ns500698.ns500698.ns500758.ns500698.ns500698.ns500698.ns500735.ns500735.ns500576.ns500708.ns500698.ns500576.ns500619.ns500619.ns500619.trackreceptor.com, ns500671.ns500742.ns500731.ns500742.ns500742.ns500731.ns500671.ns500678.ns500291.ns500131.lustychickser.com and two others among them.

These mail servers often appear in conjunction with the mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com.

Host names pointing to two IP addresses:

aspmx.l.google.com directs traffic to 64.233.180.26 and 2607:f8b0:4004:c21::1b.

alt1.aspmx.l.google.com directs traffic to 108.177.123.27 and 2800:3f0:4003:c0f::1a.

alt2.aspmx.l.google.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1a.

alt3.aspmx.l.google.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1a.

alt4.aspmx.l.google.com directs traffic to 172.253.157.27 and 2a00:1450:400c:c23::1b.