cos-tech.cloud - dns.ninja
cos-tech.cloud
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a01:4f8:d0a:2784::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | www78.your-server.de | ||||||
| A | 213.133.104.78🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| NS | ns1.your-server.de ⭐ | ||||||
| A | 2a01:4f8:0:1::5ddc:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.your-server.de | ||||||
| A | 213.133.100.102🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | ns1.your-server.de | ||||||
| NS | ns.second-ns.com | ||||||
| A | 2a01:4f8:0:a101::b:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns.second-ns.com | ||||||
| A | 213.239.204.242🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | ns.second-ns.com | ||||||
| NS | ns3.second-ns.de | ||||||
| A | 2001:67c:192c::add:b3🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | ns3.second-ns.de | ||||||
| A | 193.47.99.4🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | ns3.second-ns.de | ||||||
| MX | mail.cos-tech.cloud ⭐ | ||||||
| A | 2a01:4f8:1c1e:c6c4::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | mail.cos-tech.cloud | ||||||
| A | 195.201.230.21🇩🇪 Hetzner195.201.0.0/16 HETZNER-DC | ||||||
| PTR | mail.cos-tech.cloud | ||||||
| TXT | v=spf1 +a +mx ?all | ||||||
| SOA | ns1.your-server.depostmaster@your-server.de 2026-06-15 #1 | ||||||
cloud
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns01.trs-dns.com ⭐ | ||||||
| NS | ns.trs-dns.com | ||||||
| NS | ns01.trs-dns.net | ||||||
| NS | ns10.trs-dns.info | ||||||
| NS | ns10.trs-dns.org | ||||||
| SOA | ns.trs-dns.comtrs-ops@tucows.com serial=1782668429 | ||||||
Subdomains
mail.cos-tech.cloud |
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSns.second-ns.com2026-03-27 → 2026-06-28 · 2 obs
● 2026-06-28 17:46:54
●NSns1.your-server.de2026-03-27 → 2026-06-28 · 2 obs
● 2026-06-28 17:46:54
●NSns3.second-ns.de2026-03-27 → 2026-06-28 · 2 obs
● 2026-06-28 17:46:54
●MXmail.cos-tech.cloud2026-03-27 → 2026-06-28 · 2 obs
● 2026-06-28 17:46:54
●A213.133.104.782026-03-27 → 2026-06-28 · 2 obs
● 2026-06-28 17:46:54
●A2a01:4f8:d0a:2784::22026-03-27 → 2026-06-28 · 2 obs
● 2026-06-28 17:46:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cloud | ns01.trs-dns.com, ns01.trs-dns.net, ns10.trs-dns.org, ns10.trs-dns.info | - |
| cos-tech.cloud | ns.second-ns.com, ns3.second-ns.de, ns1.your-server.de | - |
✅ Authoritative Response
Server:213.239.204.242
NS records: ns.second-ns.com, ns3.second-ns.de, ns1.your-server.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cos-tech.cloud (unsigned zone)
⏱️ Timing
Total: 703ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 213.133.104.78 |
| AAAA | 1 | 2a01:4f8:d0a:2784::2 |
| NS | 3 | ns3.second-ns.de, ns.second-ns.com... |
| MX | 1 | mail.cos-tech.cloud (pri: 5) |
| TXT | 1 | v=spf1 +a +mx ?all |
| SOA | 1 | ns1.your-server.de postmaster.your-serve |
Analysis
Hierarchy
mail.cos-tech.cloud is delegated beneath cos-tech.cloud.
IP Addresses
cos-tech.cloud has two IP addresses: 213.133.104.78 and 2a01:4f8:d0a:2784::2
mail.adktd.com, analytics.philpharma.de, mail.iamp.info and two other host names share IP numbers with cos-tech.cloud.
Name Servers
Three name servers are authoritative for cos-tech.cloud: ns.second-ns.com, ns3.second-ns.de and ns1.your-server.de.
There is at least partial name server overlap between cos-tech.cloud and other domains — baby-bay.de, tc-salzwedel.de, kissoftheoceanscup.org and two more among them.
ns.second-ns.com resolves to 213.239.204.242 and 2a01:4f8:0:a101::b:1. ns3.second-ns.de resolves to 193.47.99.4 and 2001:67c:192c::add:b3. ns1.your-server.de resolves to 213.133.100.102 and 2a01:4f8:0:1::5ddc:1. All three hostnames point to two IP numbers each.
Mail Servers
Mail for cos-tech.cloud is handled by a single mail server, mail.cos-tech.cloud.
The mail server configuration of cos-tech.cloud is identical to that of other domains — mail.cos-tech.cloud being one example.
mail.cos-tech.cloud carries two IP numbers: 195.201.230.21 and 2a01:4f8:1c1e:c6c4::1.