coretech.com.sg - robtex.com

coretech.com.sg

DNSSEC⚠️ Not signed
A172.104.50.130πŸ‡ΈπŸ‡¬ AKAMAI-LINODE-AP172.104.32.0/19 Akamai Technologies
PTR172-104-50-130.ip.linodeusercontent.com
NSns01.dnslogic.sg ⭐
A2402:1f00:8000:800::2335πŸ‡ΈπŸ‡¬ OVH2402:1f00:8000::/40 2 Rue Kellermann
PTRvps-b456711b.vps.ovh.ca
A15.235.192.120πŸ‡ΈπŸ‡¬ OVH15.235.128.0/17 Hosting route
PTRns01.dnslogic.sg
NSns02.dnslogic.sg
A160.191.238.5BSPL-AS-AP160.191.238.0/24 BYIO SINGAPORE PTE. LTD.
NSns03.dnslogic.sg
A2402:1f00:8000:800::2937πŸ‡ΈπŸ‡¬ OVH2402:1f00:8000::/40 2 Rue Kellermann
PTRvps-b4989d75.vps.ovh.ca
A15.235.163.121πŸ‡ΈπŸ‡¬ OVH15.235.128.0/17 Hosting route
PTRns03.dnslogic.sg
MXcoretech-com-sg.mail.protection.outlook.com ⭐
A2a01:111:f403:cc09::πŸ‡ΈπŸ‡¬ Microsoft2a01:111:f000::/36
PTRmail-sg2pr03cu00500.inbound.protection.outlook.com
A2a01:111:f403:cc1a::8πŸ‡―πŸ‡΅ Microsoft2a01:111:f000::/36
PTRmail-tydpr03cu00100.inbound.protection.outlook.com
A2a01:111:f403:cc1f::4πŸ‡―πŸ‡΅ Microsoft2a01:111:f000::/36
PTRmail-os8pr02cu00104.inbound.protection.outlook.com
A52.101.124.117πŸ‡―πŸ‡΅ Microsoft52.96.0.0/12 MICROSOFT
PTRmail-tydpr03cu00105.inbound.protection.outlook.com
A52.101.137.0πŸ‡ΈπŸ‡¬ Microsoft52.96.0.0/12 MICROSOFT
PTRmail-sg2pr03cu00500.inbound.protection.outlook.com
A52.101.157.80πŸ‡ΊπŸ‡Έ Microsoft52.96.0.0/12 MICROSOFT
PTRmail-os8pr02cu00100.inbound.protection.outlook.com
TXTMS=ms79362501
TXTv=spf1 ip4:103.255.250.90 ip4:103.255.250.161 include:spf.protection.outlook....
SOAns01.dnslogic.sgnoc-charlie@alerts.en.services 2026-03-28 #1

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=2605090530

Subdomains

Same first word

Similar names

DNS History

18 records (5 active, 13 former)

20162017201820192020202120222023202420252026NSns01.dnslogic.sgns02.dnslogic.sgns03.dnslogic.sgns01.en-dns.comns02.en-dns.comns1.alevate.comns10.webvis.netns11.webvis.netns2.alevate.comns3.alevate.comMXcoretech-com-sg.mail.protection.outlook.commail.coretech.com.sgmx2.coretech.com.sgA172.104.50.130103.255.250.9116.12.200.213210.24.41.5172.167.230.161
●NSns01.dnslogic.sg2026-04-05 β†’ 2026-05-09 Β· 3 obs
β—‹ 2021-09-03 04:29:52
● 2026-04-05 12:43:26
● 2026-05-09 06:04:48
β—‹NSns01.en-dns.com2021-09-03 β†’ 2021-09-03 Β· 4 obs
β—‹ 2016-11-29 19:09:08
● 2021-09-03 04:29:52
β—‹ 2026-04-05 12:43:26
β—‹ 2026-05-09 06:04:48
●NSns02.dnslogic.sg2026-04-05 β†’ 2026-05-09 Β· 3 obs
β—‹ 2021-09-03 04:29:52
● 2026-04-05 12:43:26
● 2026-05-09 06:04:48
β—‹NSns02.en-dns.com2021-09-03 β†’ 2021-09-03 Β· 4 obs
β—‹ 2016-11-29 19:09:08
● 2021-09-03 04:29:52
β—‹ 2026-04-05 12:43:26
β—‹ 2026-05-09 06:04:48
●NSns03.dnslogic.sg2026-04-05 β†’ 2026-05-09 Β· 3 obs
β—‹ 2021-09-03 04:29:52
● 2026-04-05 12:43:26
● 2026-05-09 06:04:48
β—‹NSns1.alevate.com2015-07-15 β†’ 2016-09-27 Β· 4 obs
● 2015-07-15 20:09:56
● 2016-09-27 14:51:00
β—‹ 2016-11-06 18:21:50
β—‹ 2026-05-09 06:04:48
β—‹NSns10.webvis.net2016-11-06 β†’ 2016-11-29 Β· 5 obs
β—‹ 2016-09-27 14:51:00
● 2016-11-06 18:21:50
● 2016-11-29 19:09:08
β—‹ 2021-09-03 04:29:52
β—‹ 2026-05-09 06:04:48
β—‹NSns11.webvis.net2016-11-06 β†’ 2016-11-29 Β· 5 obs
β—‹ 2016-09-27 14:51:00
● 2016-11-06 18:21:50
● 2016-11-29 19:09:08
β—‹ 2021-09-03 04:29:52
β—‹ 2026-05-09 06:04:48
β—‹NSns2.alevate.com2015-07-15 β†’ 2016-09-27 Β· 4 obs
● 2015-07-15 20:09:56
● 2016-09-27 14:51:00
β—‹ 2016-11-06 18:21:50
β—‹ 2026-05-09 06:04:48
β—‹NSns3.alevate.com2015-07-15 β†’ 2016-09-27 Β· 4 obs
● 2015-07-15 20:09:56
● 2016-09-27 14:51:00
β—‹ 2016-11-06 18:21:50
β—‹ 2026-05-09 06:04:48
●MXcoretech-com-sg.mail.protection.outlook.com2016-07-04 β†’ 2026-05-09 Β· 6 obs
β—‹ 2016-05-17 11:02:06
● 2016-07-04 11:22:50
● 2016-11-29 19:09:08
β—‹ 2021-09-03 04:29:52
● 2026-04-05 12:43:26
● 2026-05-09 06:04:48
β—‹MXmail.coretech.com.sg2015-07-15 β†’ 2021-09-03 Β· 6 obs
● 2015-07-15 20:09:56
● 2016-05-17 11:02:06
β—‹ 2016-07-04 11:22:50
● 2021-09-03 04:29:52
β—‹ 2026-04-05 12:43:26
β—‹ 2026-05-09 06:04:48
β—‹MXmx2.coretech.com.sg2016-07-16 β†’ 2016-09-27 Β· 5 obs
β—‹ 2016-07-04 11:22:50
● 2016-07-16 21:00:18
● 2016-09-27 14:51:00
β—‹ 2016-11-06 18:21:50
β—‹ 2026-05-09 06:04:48
β—‹A103.255.250.92021-09-03 β†’ 2021-09-03 Β· 4 obs
β—‹ 2016-11-29 19:09:08
● 2021-09-03 04:29:52
β—‹ 2026-04-05 12:43:26
β—‹ 2026-05-09 06:04:48
β—‹A116.12.200.2132016-03-08 β†’ 2016-09-27 Β· 5 obs
β—‹ 2015-11-29 15:35:08
● 2016-03-08 18:52:30
● 2016-09-27 14:51:00
β—‹ 2016-11-06 18:21:50
β—‹ 2026-05-09 06:04:48
●A172.104.50.1302026-04-05 β†’ 2026-05-09 Β· 3 obs
β—‹ 2021-09-03 04:29:52
● 2026-04-05 12:43:26
● 2026-05-09 06:04:48
β—‹A210.24.41.512015-07-15 β†’ 2015-11-29 Β· 4 obs
● 2015-07-15 20:09:56
● 2015-11-29 15:35:08
β—‹ 2016-03-08 18:52:30
β—‹ 2026-05-09 06:04:48
β—‹A72.167.230.1612016-11-06 β†’ 2016-11-29 Β· 5 obs
β—‹ 2016-09-27 14:51:00
● 2016-11-06 18:21:50
● 2016-11-29 19:09:08
β—‹ 2021-09-03 04:29:52
β—‹ 2026-05-09 06:04:48

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
sgpch.sgzones.sg, dsany3.sgnic.sg, dsany2.sgnic.sg, dsany4.sgnic.sg-
coretech.com.sgns02.dnslogic.sg, ns01.dnslogic.sg, ns03.dnslogic.sg-

βœ… Authoritative Response

Server:160.191.238.5

NS records: ns02.dnslogic.sg, ns01.dnslogic.sg, ns03.dnslogic.sg

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 936ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A1172.104.50.130
NS3ns03.dnslogic.sg, ns02.dnslogic.sg...
MX1coretech-com-sg.mail.protection.outlook.
TXT2MS=ms79362501, v=spf1 ip4:103.255.250.90 ip4:103.255.25
SOA1ns01.dnslogic.sg noc-charlie.alerts.en.s

Analysis

Hierarchy

coretech.com.sg is the parent of mail.coretech.com.sg.

IP Addresses

coretech.com.sg points to IP number 172.104.50.130.

Other host names, for instance, 172-104-50-130.ip.linodeusercontent.com share IP numbers with coretech.com.sg.

Name Servers

The delegation for coretech.com.sg is handled by three name servers: ns01.dnslogic.sg, ns02.dnslogic.sg and ns03.dnslogic.sg.

coretech.com.sg shares name servers with other domains at least partially, for example iwanttodrink.com, wtconsulting.com.sg, divineway.com, gumballmaster.com and nuvanta.com.sg.

These name servers are often used together with the name servers bh1.en-dns.com, ns01.en-dns.com, ns01.speedns.asia, ns02.speedns.asia and ns02.en-dns.com.

Host names with two IPs:

Host name ns01.dnslogic.sg points to 2402:1f00:8000:800::2335 and 15.235.192.120.

Host name ns03.dnslogic.sg points to 2402:1f00:8000:800::2937 and 15.235.163.121.

Host names with one IP:

Host name ns02.dnslogic.sg points to 160.191.238.5.

Mail Servers

coretech.com.sg is handled by a single mail server, coretech-com-sg.mail.protection.outlook.com.

Host name coretech-com-sg.mail.protection.outlook.com points to six IP numbers: 2a01:111:f403:cc09::, 2a01:111:f403:cc1a::8, 2a01:111:f403:cc1f::4, 52.101.124.117, 52.101.137.0 and 52.101.157.80.