sem-systems.com - dns.ninja
sem-systems.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 37.27.61.178🇫🇮 Hetzner37.27.0.0/16 HETZNER-DC | ||||||
| PTR | pleskhost.novahost.gr | ||||||
| NS | ns1.novahost.gr ⭐ | ||||||
| A | 91.107.208.229🇩🇪 Hetzner91.107.128.0/17 HETZNER-DC | ||||||
| PTR | static.229.208.107.91.clients.your-server.de | ||||||
| NS | ns2.novahost.gr | ||||||
| A | 49.12.42.87🇩🇪 Hetzner49.12.0.0/16 HETZNER-DC | ||||||
| PTR | static.87.42.12.49.clients.your-server.de | ||||||
| MX | sem-systems.com ⭐ | ||||||
| A | 37.27.61.178🇫🇮 Hetzner37.27.0.0/16 HETZNER-DC | ||||||
| PTR | pleskhost.novahost.gr | ||||||
| TXT | v=spf1 +a +mx +ip4:37.27.61.178 ~all | ||||||
| SOA | ns1.novahost.grinfo@sem-systems.com 2026-08-05 #1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1786167754 | ||||||
MX for
sem-systems.com |
Same first word
sem-systems.eu |
sem-systems.com |
sem-systems.ru |
sem-systems.de |
Similar names
ems-systems.com |
esm-systems.at |
sms-systeme.de |
sms-systeme.com |
systeme-sms.net |
mse-systems.co.jp |
systeme-sms.eu |
systeme-sms.fr |
systeme-sms.info |
systeme-sms.org |
mes-systems.co.uk |
DNS History
9 records (4 active, 5 former)
○NSdnsa.novahost.gr2017-06-16 → 2017-06-16 · 3 obs
○ 2026-02-16 00:24:52
○ 2026-08-08 05:56:04
○NSdnsb.novahost.gr2017-06-16 → 2017-06-16 · 3 obs
○ 2026-02-16 00:24:52
○ 2026-08-08 05:56:04
○NSmdns1.novahost.gr2017-06-16 → 2017-06-16 · 3 obs
○ 2026-02-16 00:24:52
○ 2026-08-08 05:56:04
●NSns1.novahost.gr2026-02-16 → 2026-08-08 · 3 obs
● 2026-02-16 00:24:52
● 2026-08-08 05:56:04
●NSns2.novahost.gr2026-02-16 → 2026-08-08 · 3 obs
● 2026-02-16 00:24:52
● 2026-08-08 05:56:04
○MXmail.sem-systems.com2017-06-16 → 2017-06-16 · 3 obs
○ 2026-02-16 00:24:52
○ 2026-08-08 05:56:04
●MXsem-systems.com2026-02-16 → 2026-08-08 · 3 obs
● 2026-02-16 00:24:52
● 2026-08-08 05:56:04
●A37.27.61.1782026-02-16 → 2026-08-08 · 3 obs
● 2026-02-16 00:24:52
● 2026-08-08 05:56:04
○A37.97.154.402017-06-16 → 2017-06-16 · 3 obs
○ 2026-02-16 00:24:52
○ 2026-08-08 05:56:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| sem-systems.com | ns1.novahost.gr, ns2.novahost.gr | - |
✅ Authoritative Response
Server:91.107.208.229
NS records: ns1.novahost.gr, ns2.novahost.gr
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sem-systems.com (unsigned zone)
⏱️ Timing
Total: 1706ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.27.61.178 |
| NS | 2 | ns2.novahost.gr, ns1.novahost.gr |
| MX | 1 | sem-systems.com (pri: 0) |
| TXT | 1 | v=spf1 +a +mx +ip4:37.27.61.178 ~all |
| SOA | 1 | ns1.novahost.gr info.sem-systems.com |
Analysis
Mail Server Role
sem-systems.com serves as a mail server for sem-systems.com.
IP Addresses
sem-systems.com has exactly one IP address — 37.27.61.178.
floradrios.gr, iedep.gr, mail.iedep.gr plus two other host names have IP numbers in common with sem-systems.com.
Name Servers
sem-systems.com has two authoritative name servers — ns1.novahost.gr and ns2.novahost.gr.
The name server configuration of sem-systems.com is shared with other domains, for instance twentyone.gr, hsship.com, sup.gr and two others.
ns1.novahost.gr → 91.107.208.229 and ns2.novahost.gr → 49.12.42.87: one IP number per host name.
Mail Servers
sem-systems.com uses exactly one mail server, which is sem-systems.com.
sem-systems.com points to one IP number — 37.27.61.178.