zfe-online.com - robtex.com
zfe-online.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 193.175.194.36🇩🇪 DFN193.174.0.0/15 -AGG-1 | ||||||
| PTR | icons.bildungsserver.de | ||||||
| NS | docks10.rzone.de ⭐ | ||||||
| A | 2001:8d8:fe:53:5747:2a74:d:10🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | docks10.rzone.de | ||||||
| A | 217.160.80.137🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | docks10.rzone.de | ||||||
| NS | shades04.rzone.de | ||||||
| A | 2607:f1c0:fe:53:185:132:34:131🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US | ||||||
| PTR | shades04.rzone.de | ||||||
| A | 185.132.34.131🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| PTR | shades04.rzone.de | ||||||
| MX | smtpin.rzone.de ⭐ | ||||||
| A | 2a01:238:20a:202:50f0::1097🇩🇪 STRATO2a01:238:20a::/48 Strato AG | ||||||
| PTR | smtpin.rzone.de | ||||||
| A | 81.169.145.97🇩🇪 STRATO81.169.144.0/22 AG | ||||||
| PTR | smtpin.rzone.de | ||||||
| SOA | docks10.rzone.dehostmaster@strato-rz.de 2020-05-30 #6 | ||||||
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=1776135792 | ||||||
Subdomains
www.zfe-online.com |
Same first word
zfe-online.com |
DNS History
7 records (4 active, 3 former)
○MXsmtp.rzone.de2015-06-07 → 2017-05-28 · 3 obs
● 2017-05-28 03:02:16
○ 2026-04-14 03:25:16
●A193.175.194.362026-04-14 → 2026-04-14 · 2 obs
● 2026-04-14 03:25:16
○A2a01:238:20a:202:1150::2015-06-07 → 2017-05-28 · 3 obs
● 2017-05-28 03:02:16
○ 2026-04-14 03:25:16
○A81.169.145.1502015-06-07 → 2017-05-28 · 3 obs
● 2017-05-28 03:02:16
○ 2026-04-14 03:25:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| zfe-online.com | shades04.rzone.de, docks10.rzone.de | - |
✅ Authoritative Response
Server:217.160.80.137
NS records: shades04.rzone.de, docks10.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for zfe-online.com (unsigned zone)
⏱️ Timing
Total: 651ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 193.175.194.36 |
| NS | 2 | shades04.rzone.de, docks10.rzone.de |
| MX | 1 | smtpin.rzone.de (pri: 5) |
| SOA | 1 | docks10.rzone.de hostmaster.strato-rz.de |
Analysis
Hierarchy
zfe-online.com is a parent of www.zfe-online.com.
IP Addresses
zfe-online.com points to a single IP number: 193.175.194.36.
Other host names, for instance www.idea-frankfurt.de, wiki.bildungsserver.de, open-educational-resources.de, idea-frankfurt.eu and icons.bildungsserver.de share IP numbers with zfe-online.com.
Name Servers
Delegation for zfe-online.com rests with two name servers, docks10.rzone.de and shades04.rzone.de.
zfe-online.com shares the same name server setup as other domains, including weddenopek.nl, milkychance.net, vitan-treuhand.de, franziskus-schule-koeln.de and oliveoilambassador.com.
zfe-online.com at least partially shares name servers with other domains, for instance martin-baecker.de, reichbauer.com, fabiane-unger.com, duoreclame.nl and merkursoft.de.
These name servers are commonly used together with the name servers docks17.rzone.de, docks04.rzone.de, shades19.rzone.de, shades20.rzone.de, docks02.rzone.de, shades18.rzone.de, shades09.rzone.de, docks01.rzone.de, docks13.rzone.de and shades10.rzone.de.
Host names with two IP numbers: docks10.rzone.de points to 2001:8d8:fe:53:5747:2a74:d:10 and 217.160.80.137; shades04.rzone.de points to 2607:f1c0:fe:53:185:132:34:131 and 185.132.34.131.
Mail Servers
zfe-online.com is handled by a single mail server, smtpin.rzone.de.
zfe-online.com uses the same mail server configuration as other domains, such as maluszek.com, bske.de, d01.static002.drahtlos-dsl.de, dochsaxe.de and systemprogrammierer-cpp.de.
smtpin.rzone.de resolves to two IP numbers: 2a01:238:20a:202:50f0::1097 and 81.169.145.97.