flash-u.de - dns.ninja
flash-u.de
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=1785702457 | ||||||
Subdomains
mail.flash-u.de |
Same first word
Similar names
DNS History
14 records (5 active, 9 former)
●NSns1.first-ns.de2015-05-24 → 2026-08-02 · 2 obs
● 2026-08-02 20:51:02
●NSrobotns2.second-ns.de2015-05-24 → 2026-08-02 · 2 obs
● 2026-08-02 20:51:02
●NSrobotns3.second-ns.com2015-05-24 → 2026-08-02 · 2 obs
● 2026-08-02 20:51:02
○MXalt1.aspmx.l.google.com2016-01-23 → 2017-05-25 · 4 obs
● 2016-01-23 20:34:42
● 2017-05-25 09:24:20
○ 2026-08-02 20:51:02
○MXalt2.aspmx.l.google.com2016-01-23 → 2017-05-25 · 4 obs
● 2016-01-23 20:34:42
● 2017-05-25 09:24:20
○ 2026-08-02 20:51:02
○MXalt3.aspmx.l.google.com2016-01-23 → 2017-05-25 · 4 obs
● 2016-01-23 20:34:42
● 2017-05-25 09:24:20
○ 2026-08-02 20:51:02
○MXalt4.aspmx.l.google.com2016-01-23 → 2017-05-25 · 4 obs
● 2016-01-23 20:34:42
● 2017-05-25 09:24:20
○ 2026-08-02 20:51:02
○MXaspmx.l.google.com2016-01-23 → 2017-05-25 · 4 obs
● 2016-01-23 20:34:42
● 2017-05-25 09:24:20
○ 2026-08-02 20:51:02
○MXmail.flash-u.de2015-05-24 → 2017-05-25 · 3 obs
● 2017-05-25 09:24:20
○ 2026-08-02 20:51:02
●MXsmtp.google.com2026-08-02 → 2026-08-02 · 2 obs
● 2026-08-02 20:51:02
○A139.162.173.582017-05-25 → 2017-05-25 · 4 obs
● 2017-05-25 09:24:20
○ 2026-02-19 10:53:36
○ 2026-08-02 20:51:02
○A178.63.3.152015-10-15 → 2016-10-02 · 5 obs
● 2015-10-15 20:29:30
● 2016-10-02 07:56:30
○ 2017-05-25 09:24:20
○ 2026-08-02 20:51:02
○A88.198.233.2182015-05-24 → 2015-05-24 · 3 obs
○ 2015-10-15 20:29:30
○ 2026-08-02 20:51:02
●A94.130.89.2432026-02-19 → 2026-08-02 · 3 obs
● 2026-02-19 10:53:36
● 2026-08-02 20:51:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | z.nic.de, f.nic.de, a.nic.de | - |
| flash-u.de | ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com | - |
✅ Authoritative Response
Server:213.239.242.238
NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for flash-u.de (unsigned zone)
⏱️ Timing
Total: 1731ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 94.130.89.243 |
| NS | 3 | robotns3.second-ns.com, ns1.first-ns.de... |
| MX | 1 | smtp.google.com (pri: 1) |
| TXT | 1 | v=spf1 include:_spf.google.com a mx ~all |
| SOA | 1 | ns1.first-ns.de dns.hetzner.com |
Analysis
Hierarchy
flash-u.de is the parent zone for mail.flash-u.de.
IP Addresses
flash-u.de resolves to one IP address: 94.130.89.243.
mail.realityzoom.de, parken-schleswig-holstein.de, contextmatters.de and two other host names share IP numbers with flash-u.de.
Name Servers
Three name servers are authoritative for flash-u.de: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
flash-u.de partially shares its NS delegation with several other domains, including spiele-szene.de, sensortherm.com, glouds.com and two others.
These name servers regularly co-occur with the name servers hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
robotns3.second-ns.com resolves to 193.47.99.3 and 2001:67c:192c::add:a3. ns1.first-ns.de resolves to 213.239.242.238 and 2a01:4f8:0:a101::a:1. robotns2.second-ns.de resolves to 213.133.100.103 and 2a01:4f8:0:1::5ddc:2. All three hostnames point to two IP numbers each.
Mail Servers
Mail for flash-u.de is handled by a single mail server, smtp.google.com.
flash-u.de uses an identical mail server configuration to several other domains — among them arkancodex.com, bennington.com, ewyze.net and two more.
The MX records for flash-u.de are at least partially shared with other domains, such as family-break.com, logicwiztech.com, ecodvet.com and dankicode.ai.
The mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and alt3.aspmx.l.google.com are commonly seen alongside these mail servers.
smtp.google.com resolves to 9 IP addresses — 142.251.163.26, 142.251.163.27, 142.251.167.26 and 6 others.