ef-sys.com - dns.ninja
ef-sys.com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 139.28.40.42🇵🇱 KSI-KR-AS139.28.40.0/22 | ||||||
| NS | ns.nabijaczleweli.xyz ⭐ | ||||||
| A | 139.28.40.42🇵🇱 KSI-KR-AS139.28.40.0/22 | ||||||
| NS | ns1.first-ns.de | ||||||
| A | 2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.first-ns.de | ||||||
| A | 213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | ns1.first-ns.de | ||||||
| MX | mail.nabijaczleweli.xyz ⭐ | ||||||
| A | 139.28.40.42🇵🇱 KSI-KR-AS139.28.40.0/22 | ||||||
| TXT | v=spf1 mx ~all | ||||||
| TXT | google-site-verification=yJM9ge9H2yEZXlUoYjjLGLy71QG73zlt_8qXPO-Ypv0 | ||||||
| SOA | ns.nabijaczleweli.xyznabijaczleweli/ns@nabijaczleweli.xyz serial=281 | ||||||
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=1784966332 | ||||||
Previously MX for
ef-sys.com |
Same first word
ef-sys.com |
Similar names
DNS History
6 records (4 active, 2 former)
●NSns.nabijaczleweli.xyz2026-03-14 → 2026-07-25 · 2 obs
● 2026-07-25 08:09:38
●NSns1.first-ns.de2026-03-14 → 2026-07-25 · 2 obs
● 2026-07-25 08:09:38
○MXef-sys.com2008-03-19 → 2008-03-19 · 3 obs
○ 2015-11-06 14:21:32
○ 2026-07-25 08:09:38
●MXmail.nabijaczleweli.xyz2026-03-14 → 2026-07-25 · 3 obs
● 2026-03-14 04:37:26
● 2026-07-25 08:09:38
●A139.28.40.422026-03-14 → 2026-07-25 · 3 obs
● 2026-03-14 04:37:26
● 2026-07-25 08:09:38
○A216.180.243.502008-03-19 → 2008-03-19 · 3 obs
○ 2015-11-06 14:21:32
○ 2026-07-25 08:09:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, g.gtld-servers.net, c.gtld-servers.net, k.gtld-servers.net... | - |
| ef-sys.com | ns1.first-ns.de, ns.nabijaczleweli.xyz | - |
✅ Authoritative Response
Server:213.239.242.238
NS records: ns1.first-ns.de, ns.nabijaczleweli.xyz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 2443ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 139.28.40.42 |
| NS | 2 | ns.nabijaczleweli.xyz, ns1.first-ns.de |
| MX | 1 | mail.nabijaczleweli.xyz (pri: 0) |
| TXT | 2 | google-site-verification=yJM9ge9H2yEZXlU, v=spf1 mx ~all |
| SOA | 1 | ns.nabijaczleweli.xyz nabijaczleweli/ns. |
Analysis
IP Addresses
ef-sys.com directs to one IP number, which is 139.28.40.42.
Among others, mail.nabijaczleweli.xyz, tarta.nabijaczleweli.xyz, ns.nabijaczleweli.xyz and scitechsoft.net resolve to the same IP numbers as ef-sys.com.
Name Servers
ef-sys.com uses two name servers for its delegation: ns1.first-ns.de and ns.nabijaczleweli.xyz.
ef-sys.com uses the same name servers as other domains, for example nabijaczleweli.xyz and scitechsoft.net.
At least some of ef-sys.com's name servers are shared with other domains, for example cme-systems.de, fatsoules.gr, wein-preisvergleich.ch and two more.
These name servers are routinely co-deployed with the name servers robotns2.second-ns.de, robotns3.second-ns.com, hydrogen.ns.hetzner.com and two others.
Hosts with two IP numbers each:
ns1.first-ns.de directs traffic to 213.239.242.238 and 2a01:4f8:0:a101::a:1.
Hosts that resolve to one IP address:
ns.nabijaczleweli.xyz has the IP address 139.28.40.42.
Mail Servers
ef-sys.com routes its mail through a single mail server, mail.nabijaczleweli.xyz.
ef-sys.com, nabijaczleweli.xyz and scitechsoft.net all share the same mail server setup.
mail.nabijaczleweli.xyz directs to just one IP number, 139.28.40.42.