`iso-check.ch`

DNSSEC	⚠️ Not signed
A	89.110.140.125^{🇩🇪 EQUINIX-CONNECT-GERMANY89.110.128.0/18 NCL-NET}
		PTR	`vm-140-125.netclusive.cloud`
NS	`dns3.itandtel.at` ⭐
		A	2a02:940:0:4557::1002^{🇦🇹 ITANDTEL-AS2a02:940::/32 ITANDTEL, Wels, AUSTRIA}
		A	85.31.14.251^{🇦🇹 ITANDTEL-AS85.31.0.0/19 ITANDTEL, Wels, AUSTRIA}
NS	`dns4.itandtel.at`
		A	2a02:5e0:0:4::4^{🇦🇹 PROFINET-AT2a02:5e0::/32 ITandTEL AS3330}
		A	194.112.251.4^{🇦🇹 PROFINET-AT194.112.192.0/18 eww ITandTEL}
NS	`dns5.itandtel.at`
		A	2001:67c:1bc::100^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast}
			PTR	`ns1.comteam.at`
			PTR	`sec1.rcode0.at`
			PTR	`ns3.arcade.ch`
			PTR	`ns1.dynanet.ch`
			PTR	`maggie.goeast.ch`
			PTR	`sec1.rcode0.com`
			PTR	`ns2.is-fun.net`
			PTR	`ns1.nic53.net`
			PTR	`sec1.rcode0.net`
			PTR	`sec.rcode0.net`
			PTR	`ns1.vaiadigital.net`
			PTR	`b.itconsult-dns.org`
			PTR	`sec1.rcode0.org`
			PTR	`c.ns.unihost.eu`
		A	192.174.68.100^{🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net}
			PTR	`ns1.comteam.at`
			PTR	`ns1.ebit.at`
			PTR	`sec1.rcode0.at`
			PTR	`ns3.arcade.ch`
			PTR	`ns1.dynanet.ch`
			PTR	`maggie.goeast.ch`
			PTR	`ns1.cid.com`
			PTR	`sec1.rcode0.com`
			PTR	`ns2.is-fun.net`
			PTR	`ns1.nic53.net`
			PTR	`sec1.rcode0.net`
			PTR	`sec.rcode0.net`
			PTR	`ns1.vaiadigital.net`
			PTR	`b.itconsult-dns.org`
			PTR	`sec1.rcode0.org`
			PTR	`c.ns.unihost.eu`
NS	`dns6.itandtel.at`
		A	2001:67c:10b8::100^{🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net}
			PTR	`ns2.comteam.at`
			PTR	`sec2.rcode0.at`
			PTR	`ns3.arcade.ch`
			PTR	`ns2.dynanet.ch`
			PTR	`homer.goeast.ch`
			PTR	`lisa.goeast.com`
			PTR	`sec2.rcode0.com`
			PTR	`ns2.nic53.de`
			PTR	`sec2.rcode0.net`
			PTR	`sec.rcode0.net`
			PTR	`ns2.vaiadigital.net`
			PTR	`sec2.rcode0.org`
			PTR	`d.ns.unihost.eu`
			PTR	`d.itconsult-dns.co.uk`
		A	176.97.158.100^{🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net}
			PTR	`ns2.comteam.at`
			PTR	`ns2.ebit.at`
			PTR	`sec2.rcode0.at`
			PTR	`ns3.arcade.ch`
			PTR	`ns2.dynanet.ch`
			PTR	`homer.goeast.ch`
			PTR	`lisa.goeast.com`
			PTR	`sec2.rcode0.com`
			PTR	`ns2.cid.de`
			PTR	`ns2.nic53.de`
			PTR	`sec2.rcode0.net`
			PTR	`sec.rcode0.net`
			PTR	`ns2.vaiadigital.net`
			PTR	`sec2.rcode0.org`
			PTR	`d.ns.unihost.eu`
			PTR	`d.itconsult-dns.co.uk`
SOA	`dns3.itandtel.at`support@itandtel.at 2022-09-29 #2

`ch`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.nic.ch` ⭐
	NS	`b.nic.ch`
	NS	`d.nic.ch`
	NS	`e.nic.ch`
	NS	`f.nic.ch`
	SOA	`a.nic.ch`dns-operation@switch.ch 2026-03-27 #40

Same first word

iso-check.ch

DNS History

8 records (5 active, 3 former)

●NSdns3.itandtel.at2026-03-27 → 2026-03-27 · 3 obs

○ 2017-03-16 16:43:42
● 2026-03-27 19:34:42
● 2026-03-27 19:34:44

●NSdns4.itandtel.at2026-03-27 → 2026-03-27 · 3 obs

○ 2017-03-16 16:43:42
● 2026-03-27 19:34:42
● 2026-03-27 19:34:44

●NSdns5.itandtel.at2026-03-27 → 2026-03-27 · 3 obs

○ 2017-03-16 16:43:42
● 2026-03-27 19:34:42
● 2026-03-27 19:34:44

●NSdns6.itandtel.at2026-03-27 → 2026-03-27 · 3 obs

○ 2017-03-16 16:43:42
● 2026-03-27 19:34:42
● 2026-03-27 19:34:44

○NSrita.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 16:43:42
○ 2026-03-27 19:34:42
○ 2026-03-27 19:34:44

○NStim.ns.cloudflare.com2017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 16:43:42
○ 2026-03-27 19:34:42
○ 2026-03-27 19:34:44

○A194.209.131.1002017-03-16 → 2017-03-16 · 3 obs

● 2017-03-16 16:43:42
○ 2026-03-27 19:34:42
○ 2026-03-27 19:34:44

●A89.110.140.1252026-03-27 → 2026-03-27 · 3 obs

○ 2017-03-16 16:43:42
● 2026-03-27 19:34:42
● 2026-03-27 19:34:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ch	b.nic.ch, f.nic.ch, e.nic.ch, a.nic.ch...	-
iso-check.ch	dns3.itandtel.at, dns4.itandtel.at, dns5.itandtel.at, dns6.itandtel.at	-

✅ Authoritative Response

Server:85.31.14.251

NS records: dns3.itandtel.at, dns4.itandtel.at, dns5.itandtel.at, dns6.itandtel.at

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for iso-check.ch (unsigned zone)

⏱️ Timing

Total: 893ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`89.110.140.125`
NS	4	`dns5.itandtel.at, dns4.itandtel.at...`
SOA	1	`dns3.itandtel.at support.itandtel.at`

Analysis

IP Addresses

iso-check.ch resolves to one IP number: 89.110.140.125.

other host names including hrm-ag.ch, haushaltskonto.ch, isocheck.ch, www.faktnt.ch and kassabuch.ch share IP numbers with iso-check.ch.

Name Servers

iso-check.ch is delegated to four name servers: dns3.itandtel.at, dns4.itandtel.at, dns5.itandtel.at and dns6.itandtel.at.

iso-check.ch at least partially shares name servers with other domains, for instance wels-strom.at, 14.31.85.in-addr.arpa, xn--bbtel-iua.net, teufelberger.jp and tiger-coatings.net.

Host names with two IP numbers:

dns3.itandtel.at points to 2a02:940:0:4557::1002 and 85.31.14.251; dns4.itandtel.at points to 2a02:5e0:0:4::4 and 194.112.251.4; dns5.itandtel.at points to 2001:67c:1bc::100 and 192.174.68.100; dns6.itandtel.at points to 2001:67c:10b8::100 and 176.97.158.100.

iso-check.ch - robtex.com

iso-check.ch

ch

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`iso-check.ch`

`ch`