sernet.de - robtex.com
sernet.de
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a0a:a3c0:0:d2e8::1🇩🇪 SerNet2a0a:a3c0::/44 DE-SERNET-GOE | ||||||
| PTR | www.sernet.de | ||||||
| A | 185.199.218.8🇩🇪 SerNet185.199.216.0/22 DE-SERNET-20170419 | ||||||
| NS | ns1.sernet.de ⭐ | ||||||
| A | 2a0a:a3c0:0:53::53🇩🇪 SerNet2a0a:a3c0::/44 DE-SERNET-GOE | ||||||
| PTR | ns1.sernet.de | ||||||
| A | 185.199.216.18🇩🇪 SerNet185.199.216.0/22 DE-SERNET-20170419 | ||||||
| PTR | ns1.sernet.de | ||||||
| NS | ns2.sernet.net | ||||||
| A | 2a0a:a3c0:0:53::2:53🇩🇪 SerNet2a0a:a3c0::/44 DE-SERNET-GOE | ||||||
| PTR | ns2.sernet.net | ||||||
| A | 185.199.216.19🇩🇪 SerNet185.199.216.0/22 DE-SERNET-20170419 | ||||||
| PTR | ns2.sernet.net | ||||||
| NS | ns3.sernet.de | ||||||
| A | 87.118.83.116🇩🇪 KEYWEB-AS87.118.64.0/18 Keyweb AG IP Network | ||||||
| PTR | ns3.sernet.de | ||||||
| NS | ns4.sernet.net | ||||||
| A | 2a01:4f8:a1:1092::53🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns4.sernet.net | ||||||
| A | 88.99.52.61🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC | ||||||
| PTR | ns4.sernet.net | ||||||
| MX | mail.sernet.de ⭐ | ||||||
| A | 2a0a:a3c0:0:25::217:2🇩🇪 SerNet2a0a:a3c0::/44 DE-SERNET-GOE | ||||||
| PTR | mail.sernet.de | ||||||
| A | 185.199.217.2🇩🇪 SerNet185.199.216.0/22 DE-SERNET-20170419 | ||||||
| PTR | mail.sernet.de | ||||||
| TXT | v=spf1 mx a:lists.sernet.de a:mail.winwerk.de a:shop.verinice.com a:shop.samb... | ||||||
| TXT | Service Network GmbH, Goettingen, Germany | ||||||
| TXT | 546-12b-Ew6 | ||||||
| TXT | swisssign-check=djdMfo0YcH0oKk2mN9FWQUvDApU | ||||||
| TXT | apple-domain-verification=f4f6hgOYuIbYB7mH | ||||||
| SOA | ns1.sernet.dehostmaster@sernet.de 2026-02-19 #0 | ||||||
de
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | f.nic.de ⭐ | ||||||
| NS | a.nic.de | ||||||
| NS | l.de.net ⚠️ Not in parent delegation | ||||||
| NS | n.de.net ⚠️ Not in parent delegation | ||||||
| NS | s.de.net ⚠️ Not in parent delegation | ||||||
| NS | z.nic.de | ||||||
| SOA | f.nic.dedns-operations@denic.de serial=1773553752 | ||||||
rank #26814 in the tld
WOT: SAFE (91/100)
📈 Tranco rank: #172,166
Subdomains
test.sernet.de |
ns3.sernet.de |
vpnwin-gw.sernet.de |
proxy2.sernet.de |
webvpn.sernet.de |
id.sernet.de |
vweb.sernet.de |
samba.sernet.de |
portal.sernet.de |
mail.sernet.de |
vpn.sernet.de |
ns4.sernet.de |
ns2.sernet.de |
montest.sernet.de |
proxy.sernet.de |
intern.sernet.de |
portal2.sernet.de |
ns1.sernet.de |
updates.sernet.de |
rservice.sernet.de |
www2.sernet.de |
email.sernet.de |
otp.sernet.de |
sniff.sernet.de |
www.sernet.de |
gate-mh.sernet.de |
own.sernet.de |
Same first word
Similar names
DNS History
11 records (7 active, 4 former)
●NSns1.sernet.de2015-06-28 → 2026-03-18 · 2 obs
● 2026-03-18 15:15:14
●NSns2.sernet.net2015-06-28 → 2026-03-18 · 2 obs
● 2026-03-18 15:15:14
●NSns3.sernet.de2015-06-28 → 2026-03-18 · 2 obs
● 2026-03-18 15:15:14
●NSns4.sernet.net2015-06-28 → 2026-03-18 · 2 obs
● 2026-03-18 15:15:14
●MXmail.sernet.de2020-04-06 → 2026-03-18 · 3 obs
● 2020-04-06 11:47:24
● 2026-03-18 15:15:14
○MXmail1.sernet.de2015-06-28 → 2017-02-16 · 4 obs
● 2017-02-16 09:54:02
○ 2020-04-06 11:47:24
○ 2026-03-18 15:15:14
○MXmail2.sernet.de2015-06-28 → 2017-02-16 · 4 obs
● 2017-02-16 09:54:02
○ 2020-04-06 11:47:24
○ 2026-03-18 15:15:14
●A185.199.218.82020-04-06 → 2026-03-18 · 3 obs
● 2020-04-06 11:47:24
● 2026-03-18 15:15:14
○A193.159.216.2262015-06-28 → 2015-10-20 · 4 obs
● 2015-10-20 07:58:24
○ 2015-12-19 12:18:18
○ 2026-03-18 15:15:14
○A193.159.216.2272015-12-19 → 2017-02-16 · 5 obs
● 2015-12-19 12:18:18
● 2017-02-16 09:54:02
○ 2020-04-06 11:47:24
○ 2026-03-18 15:15:14
●A2a0a:a3c0:0:d2e8::12020-04-06 → 2026-03-18 · 3 obs
● 2020-04-06 11:47:24
● 2026-03-18 15:15:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | f.nic.de, z.nic.de, a.nic.de | - |
| sernet.de | ns1.sernet.de, ns2.sernet.net, ns3.sernet.de, ns4.sernet.net | 3 records |
✅ Authoritative Response
Server: 87.118.83.116
NS records: ns1.sernet.de, ns2.sernet.net, ns3.sernet.de, ns4.sernet.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sernet.de (unsigned zone)
⏱️ Timing
Total: 655ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.199.218.8 |
| AAAA | 1 | 2a0a:a3c0:0:d2e8::1 |
| NS | 4 | ns3.sernet.de, ns4.sernet.net... |
| MX | 1 | mail.sernet.de (pri: 10) |
| TXT | 5 | swisssign-check=djdMfo0YcH0oKk2mN9FWQUvD, Service Network GmbH, Goettingen, German... |
| SOA | 1 | ns1.sernet.de hostmaster.sernet.de |
📌 Glue Records Collected
Total: 3
In-bailiwick: 3 (ns1.sernet.de, ns1.sernet.de, ns3.sernet.de)
Analysis
Hierarchy
sernet.de is a parent of test.sernet.de, ns3.sernet.de, vpnwin-gw.sernet.de, proxy2.sernet.de, webvpn.sernet.de and a few other host names.
IP Addresses
sernet.de points to two IPs: 2a0a:a3c0:0:d2e8::1 and 185.199.218.8.
Other host names including winwerk.net, www.sernet.at, sernetinc.net, 37.de and osii.de share IP numbers with sernet.de.
Name Servers
sernet.de is delegated to four name servers: ns1.sernet.de, ns3.sernet.de, ns2.sernet.net and ns4.sernet.net.
sernet.de at least partially shares name servers with other domains, including 48.221.149.80.in-addr.arpa, 219.199.185.in-addr.arpa, 216.199.185.in-addr.arpa, 0.65.159.62.in-addr.arpa and 224.127.6.217.in-addr.arpa.
these name servers are commonly used with pns.dtag.de, secondary007.dtag.net, dns.seufer.de and dns.cccgoe.de.
Host names with two IP numbers:
ns1.sernet.de points to 2a0a:a3c0:0:53::53 and 185.199.216.18.
ns2.sernet.net points to 2a0a:a3c0:0:53::2:53 and 185.199.216.19.
ns4.sernet.net points to 2a01:4f8:a1:1092::53 and 88.99.52.61.
Host names with one IP number:
ns3.sernet.de points to 87.118.83.116.
Mail Servers
sernet.de is handled by a single mail server, mail.sernet.de.
sernet.de shares its mail server setup with other domains, including sernet.com, linuxvalley.de, samba-support.de, www.samba.plus and linux-valley.de.
mail.sernet.de points to two IPs: 2a0a:a3c0:0:25::217:2 and 185.199.217.2.