sertech.dk - dns.ninja
sertech.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 1785759481localtime Mon Aug 3 14:18:01 2026gmtime Mon Au... | ||||||
| SOA | b.nic.dktech@punktum.dk serial=1785759481 | ||||||
Subdomains
mail.sertech.dk |
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
●NSns1.simply.com2020-11-30 → 2026-08-03 · 3 obs
● 2020-11-30 04:13:24
● 2026-08-03 12:20:48
○NSns1.unoeuro.com2015-07-24 → 2020-01-08 · 4 obs
● 2020-01-08 19:25:08
○ 2020-11-30 04:13:24
○ 2026-08-03 12:20:48
●NSns2.simply.com2020-11-30 → 2026-08-03 · 3 obs
● 2020-11-30 04:13:24
● 2026-08-03 12:20:48
○NSns2.unoeuro.com2015-07-24 → 2020-01-08 · 4 obs
● 2020-01-08 19:25:08
○ 2020-11-30 04:13:24
○ 2026-08-03 12:20:48
●NSns3.simply.com2020-11-30 → 2026-08-03 · 3 obs
● 2020-11-30 04:13:24
● 2026-08-03 12:20:48
○NSns3.unoeuro.com2015-07-24 → 2020-01-08 · 4 obs
● 2020-01-08 19:25:08
○ 2020-11-30 04:13:24
○ 2026-08-03 12:20:48
●MXsertech-dk.mail.protection.outlook.com2020-01-08 → 2026-08-03 · 3 obs
● 2020-01-08 19:25:08
● 2026-08-03 12:20:48
○MXspam.dsdata.dk2015-07-24 → 2017-02-16 · 4 obs
● 2017-02-16 18:33:32
○ 2020-01-08 19:25:08
○ 2026-08-03 12:20:48
●A193.8.38.152026-03-08 → 2026-08-03 · 3 obs
● 2026-03-08 11:01:34
● 2026-08-03 12:20:48
○A94.231.108.2412015-07-24 → 2020-11-30 · 4 obs
● 2020-11-30 04:13:24
○ 2026-03-08 11:01:34
○ 2026-08-03 12:20:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dk | l.nic.dk, c.nic.dk, b.nic.dk, h.nic.dk... | - |
| sertech.dk | ns1.simply.com, ns2.simply.com, ns3.simply.com | - |
✅ Authoritative Response
Server:91.197.248.78
NS records: ns1.simply.com, ns2.simply.com, ns3.simply.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1005ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 193.8.38.15 |
| NS | 3 | ns3.simply.com, ns2.simply.com... |
| MX | 1 | sertech-dk.mail.protection.outlook.com ( |
| TXT | 2 | MS=ms91737643, v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns1.simply.com hostmaster.simply.com |
Analysis
Hierarchy
sertech.dk is a parent domain of mail.sertech.dk.
IP Addresses
sertech.dk has exactly one IP address — 193.8.38.15.
humanic.dk, mail.jimex.dk, www.toico.dk plus two other host names have IP numbers in common with sertech.dk.
Name Servers
DNS for sertech.dk is handled by three authoritative name servers: ns1.simply.com, ns2.simply.com and ns3.simply.com.
sertech.dk shares at least some of its name servers with other domains, including secpoint.net, levita.dk, s-mail.se and two others.
These name servers tend to appear together with the name servers ns4.simply.com, ns1.unoeuro.com and ns2.unoeuro.com, plus two others.
Host names pointing to two IP addresses:
ns1.simply.com has two IP addresses: 91.197.248.78 and 2a02:2339:1:15c::4562:4562.
ns2.simply.com has two IP addresses: 185.25.141.15 and 2a02:2339:4006:101::4562:4562.
Host names resolving to a single IP address:
ns3.simply.com directs to 91.197.248.79.
Mail Servers
sertech.dk uses one mail server — sertech-dk.mail.protection.outlook.com.
sertech-dk.mail.protection.outlook.com has 8 IP addresses: 52.101.68.8, 52.101.68.18, 52.101.68.39 plus 5 more.