ch-sys.com - robtex.com

ch-sys.com

DNSSEC⚠️ Not signed
A103.144.32.9🇹🇼 NSS-GROUP-AS-TW103.144.32.0/24 NSS INT'L CO., LTD.
PTRsp6.coowo.com
NSn.coowo.com ⭐
A103.118.24.133🇹🇼 NSS-GROUP-AS-TW103.118.24.0/24 NSS INT'L CO., LTD.
PTRn.coowo.com
NSm.coowo.com
A103.118.24.13🇹🇼 NSS-GROUP-AS-TW103.118.24.0/24 NSS INT'L CO., LTD.
PTRm.coowo.com
MXmail.ch-sys.com ⭐
A103.144.32.9🇹🇼 NSS-GROUP-AS-TW103.144.32.0/24 NSS INT'L CO., LTD.
PTRsp6.coowo.com
TXTv=spf1 a mx ip4:103.118.24.0/24 ip4:103.118.25.0/24 include:_spf.google.com i...
SOAn.coowo.comchih\@mail.msa.hinet.net 2024-02-27 #2

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1776071472

Subdomains

mail.ch-sys.com

Same first word

ch-sys.net
ch-sys.com

Similar names

sh-ysc.com
hc-sys.com
hsc-sy.com

DNS History

12 records (4 active, 8 former)

20162017201820192020202120222023202420252026NSm.coowo.comn.coowo.comMXmail.ch-sys.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.comA103.144.32.960.199.166.54
●NSm.coowo.com2015-08-17 → 2026-04-13 · 2 obs
● 2015-08-17 23:14:48
● 2026-04-13 09:32:06
●NSn.coowo.com2015-08-17 → 2026-04-13 · 2 obs
● 2015-08-17 23:14:48
● 2026-04-13 09:32:06
○MXalt1.aspmx.l.google.com2015-08-17 → 2017-06-01 · 4 obs
● 2015-08-17 23:14:48
● 2017-06-01 01:28:22
○ 2026-03-17 22:54:00
○ 2026-04-13 09:32:06
○MXalt2.aspmx.l.google.com2015-08-17 → 2017-06-01 · 4 obs
● 2015-08-17 23:14:48
● 2017-06-01 01:28:22
○ 2026-03-17 22:54:00
○ 2026-04-13 09:32:06
○MXaspmx.l.google.com2015-08-17 → 2017-06-01 · 4 obs
● 2015-08-17 23:14:48
● 2017-06-01 01:28:22
○ 2026-03-17 22:54:00
○ 2026-04-13 09:32:06
○MXaspmx2.googlemail.com2015-08-17 → 2017-06-01 · 4 obs
● 2015-08-17 23:14:48
● 2017-06-01 01:28:22
○ 2026-03-17 22:54:00
○ 2026-04-13 09:32:06
○MXaspmx3.googlemail.com2015-08-17 → 2017-06-01 · 4 obs
● 2015-08-17 23:14:48
● 2017-06-01 01:28:22
○ 2026-03-17 22:54:00
○ 2026-04-13 09:32:06
○MXaspmx4.googlemail.com2015-08-17 → 2017-06-01 · 4 obs
● 2015-08-17 23:14:48
● 2017-06-01 01:28:22
○ 2026-03-17 22:54:00
○ 2026-04-13 09:32:06
○MXaspmx5.googlemail.com2015-08-17 → 2017-06-01 · 4 obs
● 2015-08-17 23:14:48
● 2017-06-01 01:28:22
○ 2026-03-17 22:54:00
○ 2026-04-13 09:32:06
●MXmail.ch-sys.com2026-03-17 → 2026-04-13 · 3 obs
○ 2017-06-01 01:28:22
● 2026-03-17 22:54:00
● 2026-04-13 09:32:06
●A103.144.32.92026-03-17 → 2026-04-13 · 3 obs
○ 2017-06-01 01:28:22
● 2026-03-17 22:54:00
● 2026-04-13 09:32:06
○A60.199.166.542015-08-17 → 2017-06-01 · 4 obs
● 2015-08-17 23:14:48
● 2017-06-01 01:28:22
○ 2026-03-17 22:54:00
○ 2026-04-13 09:32:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
ch-sys.comm.coowo.com, n.coowo.com2 records

✅ Authoritative Response

Server:103.118.24.13

NS records: m.coowo.com, n.coowo.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ch-sys.com (unsigned zone)

⏱️ Timing

Total: 507ms | Queries: -

📄 Records

TypeCountSample Data
A1103.144.32.9
NS2m.coowo.com, n.coowo.com
MX1mail.ch-sys.com (pri: 10)
TXT1v=spf1 a mx ip4:103.118.24.0/24 ip4:103.
SOA1n.coowo.com chih\.mail.msa.hinet.net

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (m.coowo.com, n.coowo.com)

Analysis

Hierarchy

ch-sys.com is a parent of mail.ch-sys.com.

IP Addresses

ch-sys.com points to a single IP number: 103.144.32.9.

Other host names, for instance mail.alhonga.com, mail.roth.com.tw, mail.cruno.com.tw, mail.hsing-hwa.com and mail.ch-sys.com share IP numbers with ch-sys.com.

Name Servers

Delegation for ch-sys.com rests with two name servers, m.coowo.com and n.coowo.com.

ch-sys.com shares the same name server setup as other domains, including icht.com.tw, sbh.tw, mitsuda.com.tw, hsihtung.com.tw and saa-symtek.com.

ch-sys.com at least partially shares name servers with other domains, for instance xn--xqs791b63i.com, ata-attachments.com, koang-hsin.com.tw, sinyi.info and cycschool.com.tw.

These name servers are commonly used with ns3.coowo.com and ns4.coowo.com.

Host names with one IP number: m.coowo.com points to 103.118.24.13; n.coowo.com points to 103.118.24.133.

Mail Servers

ch-sys.com is handled by a single mail server, mail.ch-sys.com.

mail.ch-sys.com points to a single IP: 103.144.32.9.