zert.ch - robtex.com

zert.ch

DNSSEC⚠️ Not signed
NSa.portsdns.se ⚠️ Not in zone NS records
A2607:f740:e009::1🇺🇸 NETACTUATE2607:f740:e009::/48 Anycast Prefix
PTRa.portsdns.se
A45.54.35.101🇺🇸 NETACTUATE45.54.35.0/24 Proxy registration to prevent harm from ARIN-NONAUTH shutdown
PTRa.portsdns.se
NSb.portsdns.net ⚠️ Not in zone NS records
A2a00:11c0:3d::1🇦🇹 ANX-CUSTOMER2a00:11c0:3d::/48 Anycast powered by ANX
PTRb.portsdns.net
A94.16.23.1🇦🇹 ANX-CUSTOMER94.16.23.0/24 Anycast powered by ANX
PTRb.portsdns.net

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 2026-08-10 #22

Same first word

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DNS History

8 records (2 active, 6 former)

20162017201820192020202120222023202420252026NSa.portsdns.seb.portsdns.netdns01.swisssign.netdns02.swisssign.netMXmx1.post.chmx2.post.chA46.175.9.8091.194.146.10
●NSa.portsdns.se2026-07-21 → 2026-08-10 · 3 obs
○ 2017-09-19 01:21:08
● 2026-07-21 16:39:56
● 2026-08-10 09:22:42
●NSb.portsdns.net2026-07-21 → 2026-08-10 · 3 obs
○ 2017-09-19 01:21:08
● 2026-07-21 16:39:56
● 2026-08-10 09:22:42
○NSdns01.swisssign.net2015-05-15 → 2017-09-19 · 4 obs
● 2015-05-15 20:38:50
● 2017-09-19 01:21:08
○ 2026-07-21 16:39:56
○ 2026-08-10 09:22:42
○NSdns02.swisssign.net2015-05-15 → 2017-09-19 · 4 obs
● 2015-05-15 20:38:50
● 2017-09-19 01:21:08
○ 2026-07-21 16:39:56
○ 2026-08-10 09:22:42
○MXmx1.post.ch2015-05-15 → 2017-09-19 · 4 obs
● 2015-05-15 20:38:50
● 2017-09-19 01:21:08
○ 2026-07-21 16:39:56
○ 2026-08-10 09:22:42
○MXmx2.post.ch2015-05-15 → 2017-09-19 · 4 obs
● 2015-05-15 20:38:50
● 2017-09-19 01:21:08
○ 2026-07-21 16:39:56
○ 2026-08-10 09:22:42
○A46.175.9.802015-12-18 → 2017-09-19 · 5 obs
○ 2015-10-15 09:03:42
● 2015-12-18 21:14:48
● 2017-09-19 01:21:08
○ 2026-07-21 16:39:56
○ 2026-08-10 09:22:42
○A91.194.146.102015-05-15 → 2015-10-15 · 4 obs
● 2015-05-15 20:38:50
● 2015-10-15 09:03:42
○ 2015-12-18 21:14:48
○ 2026-08-10 09:22:42

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cha.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch...-
zert.cha.portsdns.se, b.portsdns.net-

✅ Authoritative Response

Server:94.16.23.1

NS records: a.portsdns.se, b.portsdns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zert.ch (unsigned zone)

⏱️ Timing

Total: 1632ms | Queries: -

📄 Records

TypeCountSample Data

Analysis

Name Servers

DNS delegation for zert.ch points to two name servers: b.portsdns.net and a.portsdns.se.

zert.ch shares its NS records with other domains, for example hardox-500.com, only-play.com, wopf.com and two others.

b.portsdns.net directs to 94.16.23.1 and 2a00:11c0:3d::1. a.portsdns.se directs to 45.54.35.101 and 2607:f740:e009::1. Each host name carries two IP addresses.