room4u.dk - robtex.com
room4u.dk
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 193.8.38.12🇩🇰 team-blue-denmark193.8.38.0/24 Group Online A/S - tb | ||||||
| NS | ns1.simply.com ⭐ | ||||||
| A | 2a02:2339:1:15c::4562:4562🇩🇰 team-blue-denmark2a02:2339::/36 | ||||||
| PTR | ns1.simply.com | ||||||
| A | 91.197.248.78🇩🇰 team-blue-denmark91.197.248.0/22 | ||||||
| PTR | ns1.simply.com | ||||||
| NS | ns2.simply.com | ||||||
| A | 2a02:2339:4006:101::4562:4562🇩🇰 team-blue-denmark2a02:2339:4000::/34 | ||||||
| PTR | ns2.simply.com | ||||||
| A | 185.25.141.15🇩🇰 team-blue-denmark185.25.141.0/24 Zitcom A/S | ||||||
| PTR | ns2.simply.com | ||||||
| NS | ns3.simply.com | ||||||
| A | 91.197.248.79🇩🇰 team-blue-denmark91.197.248.0/22 | ||||||
| PTR | ns3.simply.com | ||||||
| NS | ns4.simply.com | ||||||
| A | 91.197.248.80🇩🇰 team-blue-denmark91.197.248.0/22 | ||||||
| PTR | ns4.simply.com | ||||||
| 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 ⭐ | ||||||
| A | 46.36.208.16🇩🇰 team-blue-denmark46.36.208.0/21 | ||||||
| PTR | mx2.onlinemail.io | ||||||
| TXT | v=spf1 a include:spf.curanet.dk include:spf.simply.com -all | ||||||
| SOA | ns1.simply.comhostmaster@simply.com 2024-07-08 #0 | ||||||
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 1774612801localtime Fri Mar 27 13:00:01 2026gmtime Fri Ma... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1774612801 | ||||||
Subdomains
www.room4u.dk |
Same first word
room4u.ch |
room4u.dk |
room4u.nl |
room4u.biz |
room4u.at |
room4u.org.uk |
room4u.de |
room4u.com |
room4u.ru |
room4u.no |
room4u.co.nz |
room4u.net |
room4u.se |
room4u.pl |
DNS History
12 records (7 active, 5 former)
○NSns.second-ns.com2016-07-20 → 2017-05-25 · 4 obs
● 2017-05-25 16:47:58
○ 2026-03-08 10:58:58
○ 2026-03-27 12:08:26
●NSns1.simply.com2026-03-08 → 2026-03-27 · 3 obs
● 2026-03-08 10:58:58
● 2026-03-27 12:08:26
○NSns1.your-server.de2016-07-20 → 2017-05-25 · 4 obs
● 2017-05-25 16:47:58
○ 2026-03-08 10:58:58
○ 2026-03-27 12:08:26
●NSns2.simply.com2026-03-08 → 2026-03-27 · 3 obs
● 2026-03-08 10:58:58
● 2026-03-27 12:08:26
○NSns3.second-ns.de2016-07-20 → 2017-05-25 · 4 obs
● 2017-05-25 16:47:58
○ 2026-03-08 10:58:58
○ 2026-03-27 12:08:26
●NSns3.simply.com2026-03-08 → 2026-03-27 · 3 obs
● 2026-03-08 10:58:58
● 2026-03-27 12:08:26
●NSns4.simply.com2026-03-08 → 2026-03-27 · 3 obs
● 2026-03-08 10:58:58
● 2026-03-27 12:08:26
○MXmail.atriumweb.dk2016-07-20 → 2017-05-25 · 4 obs
● 2017-05-25 16:47:58
○ 2026-03-08 10:58:58
○ 2026-03-27 12:08:26
●MXmx1.onlinemail.io2026-03-08 → 2026-03-27 · 3 obs
● 2026-03-08 10:58:58
● 2026-03-27 12:08:26
●MXmx2.onlinemail.io2026-03-08 → 2026-03-27 · 3 obs
● 2026-03-08 10:58:58
● 2026-03-27 12:08:26
●A193.8.38.122026-03-08 → 2026-03-27 · 3 obs
● 2026-03-08 10:58:58
● 2026-03-27 12:08:26
○A78.46.7.812016-07-20 → 2017-05-25 · 4 obs
● 2017-05-25 16:47:58
○ 2026-03-08 10:58:58
○ 2026-03-27 12:08:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | b.nic.dk, h.nic.dk, t.nic.dk, c.nic.dk... | - |
| room4u.dk | ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com | - |
✅ Authoritative Response
Server:91.197.248.79
NS records: ns1.simply.com, ns2.simply.com, ns3.simply.com, ns4.simply.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 990ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 193.8.38.12 |
| NS | 4 | ns2.simply.com, ns4.simply.com... |
| MX | 2 | mx2.onlinemail.io (pri: 10), mx1.onlinemail.io (pri: 10) |
| TXT | 1 | v=spf1 a include:spf.curanet.dk include: |
| SOA | 1 | ns1.simply.com hostmaster.simply.com |
Analysis
Hierarchy
The parent of www.room4u.dk is room4u.dk.
IP Addresses
room4u.dk points to an IP address: 193.8.38.12.
other host names include rrc.dk, hvidtfeldtgaard.dk, www.fogagro.pl, auto-express.dk and v-tt.dk; they share IP numbers with room4u.dk.
Name Servers
room4u.dk delegates to four name servers: ns1.simply.com, ns2.simply.com, ns3.simply.com and ns4.simply.com.
room4u.dk at least partially shares name servers with other domains, for instance aoaa.dk, nyeord.dk, gaspari.se, soholm.dk and rentlet.dk.
Host names with two IP numbers:
ns1.simply.com points to: 2a02:2339:1:15c::4562:4562 and 91.197.248.78
ns2.simply.com points to: 2a02:2339:4006:101::4562:4562 and 185.25.141.15
Host names with one IP number:
ns3.simply.com points to: 91.197.248.79
ns4.simply.com points to: 91.197.248.80
Mail Servers
room4u.dk is handled by two mail servers: mx1.onlinemail.io and mx2.onlinemail.io.
room4u.dk uses the same mail server setup as other domains, for instance mjolnerparken.dk, ljga.dk, landbrugsmaegleren.dk, strandoghavjagt.dk and santa-and-friends.com.
room4u.dk shares at least partially some mail servers with other domains, for instance docgerber.dk, norvangen.dk, rud-family.dk, monbrison.dk and filco.dk.
Host names with one IP:
mx1.onlinemail.io points to: 185.21.42.12
mx2.onlinemail.io points to: 46.36.208.16