itstack.dk - robtex.com
itstack.dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 185.21.41.45🇩🇰 team-blue-denmark185.21.40.0/22 ZITCOM A/S | ||||||
| PTR | linux15.curanet.dk | ||||||
| NS | ns1.curanet.dk ⭐ | ||||||
| A | 2a02:2339:4006:108::123🇩🇰 team-blue-denmark2a02:2339:4000::/34 | ||||||
| PTR | ns1.curanet.dk | ||||||
| A | 185.25.141.12🇩🇰 team-blue-denmark185.25.141.0/24 Zitcom A/S | ||||||
| PTR | ns1.curanet.dk | ||||||
| NS | ns2.curanet.dk | ||||||
| A | 2a02:2339:1:10f::123:123🇩🇰 team-blue-denmark2a02:2339::/36 | ||||||
| PTR | ns2.curanet.dk | ||||||
| A | 91.197.248.75🇩🇰 team-blue-denmark91.197.248.0/22 | ||||||
| PTR | ns2.curanet.dk | ||||||
| MX | mx1.onlinemail.io ⭐ | ||||||
| A | 185.21.42.12🇩🇰 team-blue-denmark185.21.40.0/22 ZITCOM A/S | ||||||
| PTR | mx1.onlinemail.io | ||||||
| MX | mx2.onlinemail.io(20) | ||||||
| A | 46.36.208.16🇩🇰 team-blue-denmark46.36.208.0/21 | ||||||
| PTR | mx2.onlinemail.io | ||||||
| TXT | mailerlite-domain-verification=d8d3a9def616bdd30fa5eddfcc51f67540e245d9 | ||||||
| TXT | stripe-verification=53ce3d94621138db757defa38d80637bc91b63d6b7be32ee078138c05... | ||||||
| TXT | v=spf1 include:spf.zoho.eu include:eu.transmail.net include:spf.zohomail360.e... | ||||||
| TXT | openai-domain-verification=dv-1xSkOR6deJoWjrfSeY9UYf5o | ||||||
| TXT | google-site-verification=UuuRIdVMDtYjV5jSK2XGrxsIjpVQ1e7J_daPStSqXaw | ||||||
| TXT | v=spf1 include:_spf.google.com include:_spf.mlsend.com include:spf.onlinemail... | ||||||
| SOA | ns1.curanet.dkhostmaster@curanet.dk 2026-03-26 #6 | ||||||
dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | b.nic.dk ⭐ | ||||||
| NS | c.nic.dk | ||||||
| NS | h.nic.dk | ||||||
| NS | l.nic.dk | ||||||
| NS | s.nic.dk | ||||||
| NS | t.nic.dk | ||||||
| TXT | DK zone updateEpoch 1775938860localtime Sat Apr 11 22:21:00 2026gmtime Sat Ap... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1775938860 | ||||||
Previously MX for
itstack.dk |
Subdomains
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
○NShost.karlog-it.dk2019-02-28 → 2019-02-28 · 3 obs
○ 2026-02-28 05:12:18
○ 2026-04-11 20:44:16
●NSns1.curanet.dk2026-02-28 → 2026-04-11 · 3 obs
● 2026-02-28 05:12:18
● 2026-04-11 20:44:16
○NSns1.karlog-it.dk2019-02-28 → 2019-02-28 · 3 obs
○ 2026-02-28 05:12:18
○ 2026-04-11 20:44:16
●NSns2.curanet.dk2026-02-28 → 2026-04-11 · 3 obs
● 2026-02-28 05:12:18
● 2026-04-11 20:44:16
○MXitstack.dk2019-02-28 → 2019-02-28 · 3 obs
○ 2026-02-28 05:12:18
○ 2026-04-11 20:44:16
●MXmx1.onlinemail.io2026-02-28 → 2026-04-11 · 3 obs
● 2026-02-28 05:12:18
● 2026-04-11 20:44:16
●MXmx2.onlinemail.io2026-02-28 → 2026-04-11 · 3 obs
● 2026-02-28 05:12:18
● 2026-04-11 20:44:16
●A185.21.41.452026-02-28 → 2026-04-11 · 3 obs
● 2026-02-28 05:12:18
● 2026-04-11 20:44:16
○A194.135.81.1362019-02-28 → 2019-02-28 · 3 obs
○ 2026-02-28 05:12:18
○ 2026-04-11 20:44:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | b.nic.dk, h.nic.dk, t.nic.dk, c.nic.dk... | - |
| itstack.dk | ns1.curanet.dk, ns2.curanet.dk | - |
✅ Authoritative Response
Server:91.197.248.75
NS records: ns1.curanet.dk, ns2.curanet.dk
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 808ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.21.41.45 |
| NS | 2 | ns1.curanet.dk, ns2.curanet.dk |
| MX | 2 | mx2.onlinemail.io (pri: 20), mx1.onlinemail.io (pri: 10) |
| TXT | 6 | v=spf1 include:_spf.google.com include:_, v=spf1 include:spf.zoho.eu include:eu.tr... |
| SOA | 1 | ns1.curanet.dk hostmaster.curanet.dk |
Analysis
Hierarchy
itstack.dk is a parent of ns1.itstack.dk and ns2.itstack.dk.
IP Addresses
itstack.dk resolves to one IP number: 185.21.41.45.
Other host names, for instance boidavidsen.dk, zantio.dk, lbk.dk, groennestreger.dk and sikkerhedsbranchen.dk share IP numbers with itstack.dk.
Name Servers
itstack.dk's delegation uses two name servers: ns1.curanet.dk and ns2.curanet.dk.
itstack.dk uses the same name server setup as other domains, such as toloroklub.dk, sejtraek.dk, kaffebar.dk, omlithos.dk and atid.dk.
itstack.dk at least partially shares name servers with other domains, including dspnet.dk, tandlaegernesanktanne.dk, remien-ejendomme.dk, nilexpro.dk and lmtest.dk.
These name servers are commonly used with ns1.123hotel.dk.
Host names with two IPs:
ns1.curanet.dk points to 2a02:2339:4006:108::123 and 185.25.141.12
ns2.curanet.dk points to 2a02:2339:1:10f::123:123 and 91.197.248.75
Mail Servers
itstack.dk is served by two mail servers mx1.onlinemail.io and mx2.onlinemail.io.
itstack.dk shares the same mail server setup as other domains, for instance logoon.dk, grusterminalen.dk, soldater.dk, aarestrupforsamlingshus.dk and mcl.dk.
itstack.dk shares some mail servers with other domains, at least in part; for example tectum.dk and joench.dk.
Host names with a single IP address: mx1.onlinemail.io points to 185.21.42.12; mx2.onlinemail.io points to 46.36.208.16.