rtb.dk - dns.ninja
rtb.dk
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 1783204921localtime Sun Jul 5 00:42:01 2026gmtime Sat Ju... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1783204921 | ||||||
Subdomains
mail.rtb.dk |
Same first word
Similar names
DNS History
15 records (9 active, 6 former)
●NSns1.dlx.dk2026-02-22 → 2026-07-04 · 3 obs
● 2026-02-22 20:00:16
● 2026-07-04 23:14:02
○NSns1.gratisdns.dk2015-08-21 → 2021-06-09 · 4 obs
● 2021-06-09 22:01:12
○ 2026-02-22 20:00:16
○ 2026-07-04 23:14:02
●NSns2.dlx.dk2026-02-22 → 2026-07-04 · 3 obs
● 2026-02-22 20:00:16
● 2026-07-04 23:14:02
○NSns2.gratisdns.dk2015-08-21 → 2021-06-09 · 4 obs
● 2021-06-09 22:01:12
○ 2026-02-22 20:00:16
○ 2026-07-04 23:14:02
○NSns3.gratisdns.dk2015-08-21 → 2021-06-09 · 4 obs
● 2021-06-09 22:01:12
○ 2026-02-22 20:00:16
○ 2026-07-04 23:14:02
○NSns4.gratisdns.dk2015-08-21 → 2021-06-09 · 4 obs
● 2021-06-09 22:01:12
○ 2026-02-22 20:00:16
○ 2026-07-04 23:14:02
○NSns5.gratisdns.dk2015-08-21 → 2021-06-09 · 4 obs
● 2021-06-09 22:01:12
○ 2026-02-22 20:00:16
○ 2026-07-04 23:14:02
●MXalt1.aspmx.l.google.com2015-08-21 → 2026-07-04 · 2 obs
● 2026-07-04 23:14:02
●MXalt2.aspmx.l.google.com2015-08-21 → 2026-07-04 · 2 obs
● 2026-07-04 23:14:02
●MXaspmx.l.google.com2015-08-21 → 2026-07-04 · 2 obs
● 2026-07-04 23:14:02
●MXaspmx2.googlemail.com2015-08-21 → 2026-07-04 · 2 obs
● 2026-07-04 23:14:02
●MXaspmx3.googlemail.com2015-08-21 → 2026-07-04 · 2 obs
● 2026-07-04 23:14:02
●MXaspmx4.googlemail.com2015-08-21 → 2026-07-04 · 2 obs
● 2026-07-04 23:14:02
●MXaspmx5.googlemail.com2015-08-21 → 2026-07-04 · 2 obs
● 2026-07-04 23:14:02
○A92.61.149.2222015-08-21 → 2021-06-09 · 4 obs
● 2021-06-09 22:01:12
○ 2026-02-22 20:00:16
○ 2026-07-04 23:14:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | b.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk... | - |
| rtb.dk | ns1.dlx.dk, ns2.dlx.dk | 4 records |
✅ Authoritative Response
Server:46.30.121.210
NS records: ns1.dlx.dk, ns2.dlx.dk
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 708ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.dlx.dk, ns2.dlx.dk |
| MX | 7 | alt2.aspmx.l.google.com (pri: 5), aspmx2.googlemail.com (pri: 10)... |
| TXT | 1 | v=spf1 include:_spf.google.com -all |
| SOA | 1 | ns1.dlx.dk ks.dlx.dk |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns2.dlx.dk, ns1.dlx.dk, ns2.dlx.dk...)
Analysis
Hierarchy
mail.rtb.dk is delegated beneath rtb.dk.
Name Servers
rtb.dk is delegated to two name servers: ns1.dlx.dk and ns2.dlx.dk.
rtb.dk uses the same name servers as several other domains — among them moneyback.dk, viptel.eu, albertrex.dk and two more.
There is at least partial name server overlap between rtb.dk and other domains — ottolarsen.dk, pukingpumpkin.com, delfs.dk and two more among them.
ns1.dlx.dk and ns2.dlx.dk each resolve to two IP addresses: ns1.dlx.dk points to 46.30.121.210 and 2a00:1b18:1337:1337::53, while ns2.dlx.dk points to 185.208.212.124 and 2a00:1b19:1337:1337::53.
Mail Servers
rtb.dk accepts email via 7 mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.
rtb.dk has at least partial mail server overlap with other domains such as greendoormedia.net, ai.se, ns500724.ns500737.ns500724.ns500599.ns500737.ns500724.ns500737.ns500583.ns500599.ns500583.ns500669.www.yummyflingsfinder.com and two more.
These mail servers commonly co-occur with mail servers alt1.aspmx.l.google.com, aspmx.l.google.com, alt2.aspmx.l.google.com and 3 others.
Hostnames that resolve to two IP addresses:
aspmx2.googlemail.com points to 108.177.123.26 and 2800:3f0:4003:c0f::1b.
aspmx3.googlemail.com points to 172.253.116.26 and 2a00:1450:400b:c02::1b.
aspmx4.googlemail.com points to 192.178.223.26 and 2a00:1450:4009:c0f::1b.
aspmx5.googlemail.com points to 172.253.157.26 and 2a00:1450:400c:c23::1b.
aspmx.l.google.com points to 172.253.62.26 and 2607:f8b0:4004:c29::1a.
alt1.aspmx.l.google.com points to 108.177.123.26 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com points to 172.253.116.27 and 2a00:1450:400b:c02::1a.
aspmx2.googlemail.com and alt1.aspmx.l.google.com are host names that each point to 108.177.123.26 IP addresses.