mathopt.de - dns.ninja
mathopt.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=1785546363 | ||||||
Subdomains
mail.mathopt.de |
Same first word
Similar names
photmat.eu |
mattohp.com |
mathpot.com |
pamtoth.com |
potmath.com |
mathtop.com |
matphot.com |
mattohp.jp |
optmath.com |
topmath.com |
topmath.info |
tomphat.com.au |
topmath.org |
topmath.ir |
mathtop.com.cn |
thompat.de |
topmath.ca |
topmath.de |
DNS History
12 records (7 active, 5 former)
●NSdocks02.rzone.de2016-07-16 → 2026-08-01 · 3 obs
● 2016-07-16 20:55:38
● 2026-08-01 01:33:40
○NSns10.nameserverservice.de2015-07-13 → 2015-12-31 · 4 obs
● 2015-12-31 18:52:44
○ 2016-07-16 20:55:38
○ 2026-08-01 01:33:40
○NSns9.nameserverservice.de2015-07-13 → 2015-12-31 · 4 obs
● 2015-12-31 18:52:44
○ 2016-07-16 20:55:38
○ 2026-08-01 01:33:40
●NSshades18.rzone.de2016-07-16 → 2026-08-01 · 3 obs
● 2016-07-16 20:55:38
● 2026-08-01 01:33:40
●MXalt1.aspmx.l.google.com2015-07-13 → 2026-08-01 · 2 obs
● 2026-08-01 01:33:40
○MXalt2.aspmx.l.google.com2015-07-13 → 2015-12-31 · 4 obs
● 2015-12-31 18:52:44
○ 2016-07-16 20:55:38
○ 2026-08-01 01:33:40
●MXaspmx.l.google.com2015-07-13 → 2026-08-01 · 2 obs
● 2026-08-01 01:33:40
●MXaspmx2.googlemail.com2015-07-13 → 2026-08-01 · 2 obs
● 2026-08-01 01:33:40
●MXaspmx3.googlemail.com2015-07-13 → 2026-08-01 · 2 obs
● 2026-08-01 01:33:40
○A141.44.75.372016-07-16 → 2017-03-20 · 5 obs
● 2016-07-16 20:55:38
● 2017-03-20 06:05:56
○ 2026-02-23 06:15:10
○ 2026-08-01 01:33:40
●A141.44.75.52026-02-23 → 2026-08-01 · 3 obs
● 2026-02-23 06:15:10
● 2026-08-01 01:33:40
○A62.75.184.92015-07-13 → 2015-12-31 · 4 obs
● 2015-12-31 18:52:44
○ 2016-07-16 20:55:38
○ 2026-08-01 01:33:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| de | a.nic.de, f.nic.de, z.nic.de | - |
| mathopt.de | docks02.rzone.de, shades18.rzone.de | - |
✅ Authoritative Response
Server:185.132.34.145
NS records: docks02.rzone.de, shades18.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mathopt.de (unsigned zone)
⏱️ Timing
Total: 1276ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 141.44.75.5 |
| NS | 2 | shades18.rzone.de, docks02.rzone.de |
| MX | 4 | aspmx2.googlemail.com (pri: 100), alt1.aspmx.l.google.com (pri: 10)... |
| SOA | 1 | shades18.rzone.de hostmaster.strato-rz.d |
Analysis
Hierarchy
mail.mathopt.de is delegated beneath mathopt.de.
IP Addresses
mathopt.de points to a single IP number: 141.44.75.5.
There are other host names — fma-web.math.uni-magdeburg.de among them — that share IP numbers with mathopt.de.
Name Servers
DNS delegation for mathopt.de points to two name servers: docks02.rzone.de and shades18.rzone.de.
mathopt.de shares its name server setup with other domains, including androloge-dortmund.com, aboxpress.de, serent.de and two others.
There is at least partial name server overlap between mathopt.de and other domains — help4nepal.com, smallbasic.eu, service-wp.de and two more among them.
These name servers regularly appear alongside shades17.rzone.de, shades15.rzone.de, shades11.rzone.de and 7 other name servers in NS record sets.
docks02.rzone.de directs to 217.160.80.129 and 2001:8d8:fe:53:5747:2a74:d:2. shades18.rzone.de directs to 185.132.34.145 and 2607:f1c0:fe:53:185:132:34:145. Each host name carries two IP addresses.
Mail Servers
The four mail servers for mathopt.de are aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and alt1.aspmx.l.google.com.
mathopt.de shares mail servers — at least in part — with other domains, including atomicsemi.com, ns500742.ns500754.ns500754.ns500731.ns500742.ns500704.ns500731.ns500731.ns500688.ns500291.ns500291.ns500291.ns500131.lustychickser.com, mein-immergruen.de and two others.
These mail servers are frequently used alongside the mail servers alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com, plus two others.
All four hostnames — aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and alt1.aspmx.l.google.com — resolve to two IP numbers apiece: aspmx2.googlemail.com to 108.177.123.26 and 2800:3f0:4003:c0f::1a; aspmx3.googlemail.com to 172.253.116.26 and 2a00:1450:400b:c02::1b; aspmx.l.google.com to 172.253.63.27 and 2607:f8b0:4004:c1f::1a; alt1.aspmx.l.google.com to 108.177.123.27 and 2800:3f0:4003:c0f::1b.