comp-sys.ch - dns.ninja

comp-sys.ch

DNSSEC⚠️ Not signed
A93.174.16.100🇨🇭 SOLNET93.174.16.0/21 Comp-Sys Informatik AG
PTRplesk01.wolke11.ch
NSdns01.wolke11.ch ⭐
A93.174.16.102🇨🇭 SOLNET93.174.16.0/21 Comp-Sys Informatik AG
PTRdns01.wolke11.ch
NSdns02.comp-sys.ch
A93.174.17.202🇨🇭 SOLNET93.174.16.0/21 Comp-Sys Informatik AG
PTRdns02.comp-sys.ch
NSdns03.comp-sys.net
MXsmail03.comp-sys.net ⭐
A93.174.16.73🇨🇭 SOLNET93.174.16.0/21 Comp-Sys Informatik AG
PTRsmail03.comp-sys.net
TXTppe-71400e8a1afcd77955fba78ba9328267f872fa48
TXTv=spf1 +a +mx +a:plesk01.wolke11.ch ip4:93.174.16.70 include:spf.hstex.comp-s...
SOAdns01.wolke11.chplesk@comp-sys.ch 2026-07-16 #1

ch

DNSSEC🔒 Signed (DS record present)
NSa.nic.ch ⭐
NSb.nic.ch
NSd.nic.ch
NSe.nic.ch
NSf.nic.ch
SOAa.nic.chdns-operation@switch.ch 2026-08-08 #38
📈 Tranco rank: #693,444

Subdomains

webmail.comp-sys.ch
dns02.comp-sys.ch
www.comp-sys.ch
dns3.comp-sys.ch

Same first word

comp-sys.net
comp-sys.ch
comp-sys.com
comp-sys.ru

Similar names

sys-comp.de
sys-comp.com

DNS History

14 records (5 active, 9 former)

20162017201820192020202120222023202420252026NSdns01.wolke11.chdns02.comp-sys.chdns03.comp-sys.netdns1.comp-sys.netdns2.comp-sys.netdns4.wolke11.chMXsmail03.comp-sys.netglmail01.comp-sys.netglmail01.mail.comp-sys.netA93.174.16.1002a04:a2c0:4::1593.174.17.1493.174.17.1593.174.17.19
●NSdns01.wolke11.ch2021-08-19 → 2026-08-08 · 3 obs
○ 2020-07-07 15:46:18
● 2021-08-19 13:21:20
● 2026-08-08 17:13:20
●NSdns02.comp-sys.ch2021-08-19 → 2026-08-08 · 3 obs
○ 2020-07-07 15:46:18
● 2021-08-19 13:21:20
● 2026-08-08 17:13:20
●NSdns03.comp-sys.net2026-02-17 → 2026-08-08 · 3 obs
○ 2021-08-19 13:21:20
● 2026-02-17 12:41:36
● 2026-08-08 17:13:20
○NSdns1.comp-sys.net2015-07-13 → 2017-02-13 · 7 obs
● 2015-07-13 21:18:46
● 2016-09-06 12:11:16
○ 2016-09-19 13:14:16
● 2016-12-19 11:43:40
● 2017-02-13 15:45:18
○ 2017-08-20 04:21:08
○ 2026-08-08 17:13:20
○NSdns2.comp-sys.net2015-07-13 → 2020-07-07 · 7 obs
● 2015-07-13 21:18:46
● 2016-09-06 12:11:16
○ 2016-09-19 13:14:16
● 2016-12-19 11:43:40
● 2020-07-07 15:46:18
○ 2021-08-19 13:21:20
○ 2026-08-08 17:13:20
○NSdns4.wolke11.ch2017-08-20 → 2020-07-07 · 5 obs
○ 2017-02-13 15:45:18
● 2017-08-20 04:21:08
● 2020-07-07 15:46:18
○ 2021-08-19 13:21:20
○ 2026-08-08 17:13:20
○MXglmail01.comp-sys.net2016-12-19 → 2017-08-20 · 5 obs
○ 2016-09-19 13:14:16
● 2016-12-19 11:43:40
● 2017-08-20 04:21:08
○ 2020-07-07 15:46:18
○ 2026-08-08 17:13:20
○MXglmail01.mail.comp-sys.net2015-07-13 → 2016-09-06 · 4 obs
● 2015-07-13 21:18:46
● 2016-09-06 12:11:16
○ 2016-09-19 13:14:16
○ 2026-08-08 17:13:20
●MXsmail03.comp-sys.net2020-07-07 → 2026-08-08 · 3 obs
○ 2017-08-20 04:21:08
● 2020-07-07 15:46:18
● 2026-08-08 17:13:20
○A2a04:a2c0:4::152016-09-06 → 2017-08-20 · 7 obs
○ 2016-01-22 04:43:50
● 2016-09-06 12:11:16
○ 2016-09-19 13:14:16
● 2016-12-19 11:43:40
● 2017-08-20 04:21:08
○ 2020-07-07 15:46:18
○ 2026-08-08 17:13:20
●A93.174.16.1002021-08-19 → 2026-08-08 · 3 obs
○ 2020-07-07 15:46:18
● 2021-08-19 13:21:20
● 2026-08-08 17:13:20
○A93.174.17.142015-07-13 → 2015-10-29 · 4 obs
● 2015-07-13 21:18:46
● 2015-10-29 09:31:34
○ 2016-01-22 04:43:50
○ 2026-08-08 17:13:20
○A93.174.17.152016-01-22 → 2017-08-20 · 8 obs
○ 2015-10-29 09:31:34
● 2016-01-22 04:43:50
● 2016-09-06 12:11:16
○ 2016-09-19 13:14:16
● 2016-12-19 11:43:40
● 2017-08-20 04:21:08
○ 2020-07-07 15:46:18
○ 2026-08-08 17:13:20
○A93.174.17.192020-07-07 → 2020-07-07 · 4 obs
○ 2017-08-20 04:21:08
● 2020-07-07 15:46:18
○ 2021-08-19 13:21:20
○ 2026-08-08 17:13:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
chb.nic.ch, d.nic.ch, e.nic.ch, f.nic.ch...-
comp-sys.chdns02.comp-sys.ch, dns03.comp-sys.net, dns01.wolke11.ch2 records

✅ Authoritative Response

Server:93.174.17.202

NS records: dns02.comp-sys.ch, dns03.comp-sys.net, dns01.wolke11.ch

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 909ms | Queries: -

📄 Records

TypeCountSample Data
A193.174.16.100
NS3dns01.wolke11.ch, dns02.comp-sys.ch...
MX1smail03.comp-sys.net (pri: 10)
TXT2v=spf1 +a +mx +a:plesk01.wolke11.ch ip4:, ppe-71400e8a1afcd77955fba78ba9328267f872
SOA1dns01.wolke11.ch plesk.comp-sys.ch

📌 Glue Records Collected

Total: 2

In-bailiwick: 1 (dns02.comp-sys.ch)

Out-of-bailiwick: 1 (dns01.wolke11.ch)

Analysis

Hierarchy

The domain comp-sys.ch is a parent of webmail.comp-sys.ch, dns02.comp-sys.ch, www.comp-sys.ch and dns3.comp-sys.ch.

IP Addresses

comp-sys.ch directs to one IP number, which is 93.174.16.100.

Among the host names that share IP numbers with comp-sys.ch are meister-messen.ch, peterkammer.ch, sumec.ch and two others.

Name Servers

The authoritative name servers for comp-sys.ch are dns02.comp-sys.ch, dns01.wolke11.ch and dns03.comp-sys.net — three in total.

At least some of comp-sys.ch's name servers are shared with other domains, for example cdr-glas.ch, cdr.ch, wiegand-optik.ch and two more.

Each of dns02.comp-sys.ch and dns01.wolke11.ch has one IP address: dns02.comp-sys.ch uses 93.174.17.202 and dns01.wolke11.ch uses 93.174.16.102.

Mail Servers

comp-sys.ch routes its mail through a single mail server, smail03.comp-sys.net.

comp-sys.ch has the same mail server arrangement as a number of other domains, for example compsys.ch, simonet-ag.ch, ottimmo.ch and two more.

comp-sys.ch overlaps on mail servers with certain other domains, okw.ch among them.

It is common to find these mail servers paired with the mail servers okw-ch.mail.protection.outlook.com.

smail03.comp-sys.net directs to just one IP number, 93.174.16.73.