ostech.com - dns.ninja
ostech.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 65.21.165.178🇫🇮 Hetzner65.21.0.0/16 HETZNER-DC | ||||||
| PTR | tinman.ostech.de | ||||||
| NS | shades05.rzone.de ⭐ | ||||||
| A | 2607:f1c0:fe:53:185:132:34:132🇺🇸 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 | shades05.rzone.de | ||||||
| A | 185.132.34.132🇩🇪 IONOS-ANYCAST185.132.32.0/22 IONOS DNSAS (eBGP DNS) | ||||||
| PTR | shades05.rzone.de | ||||||
| NS | docks05.rzone.de | ||||||
| A | 2001:8d8:fe:53:5747:2a74:d:5🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific | ||||||
| PTR | docks05.rzone.de | ||||||
| A | 217.160.80.132🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific | ||||||
| PTR | docks05.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 | shades05.rzone.dehostmaster@strato-rz.de 2020-05-13 #77 | ||||||
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=1782549360 | ||||||
Subdomains
mail.ostech.com |
Same first word
ostech.com.cn |
ostech.nl |
ostech.org |
ostech.net |
ostech.us |
ostech.pl |
ostech.in |
ostech.eu |
ostech.com.au |
ostech.ca |
ostech.co |
ostech.ru |
ostech.co.kr |
ostech.com |
ostech.online |
ostech.io |
ostech.com.tr |
ostech.co.uk |
ostech.de |
Similar names
DNS History
8 records (4 active, 4 former)
○MXsmtp.rzone.de2015-06-23 → 2017-06-07 · 4 obs
● 2017-06-07 09:32:50
○ 2026-02-24 10:59:24
○ 2026-06-27 08:42:24
●MXsmtpin.rzone.de2026-02-24 → 2026-06-27 · 3 obs
● 2026-02-24 10:59:24
● 2026-06-27 08:42:24
○A144.76.60.612016-01-19 → 2017-06-07 · 5 obs
● 2016-01-19 00:57:00
● 2017-06-07 09:32:50
○ 2026-02-24 10:59:24
○ 2026-06-27 08:42:24
○A2a01:238:20a:202:1082::2015-06-23 → 2015-11-06 · 4 obs
● 2015-11-06 07:56:56
○ 2016-01-19 00:57:00
○ 2026-06-27 08:42:24
●A65.21.165.1782026-02-24 → 2026-06-27 · 3 obs
● 2026-02-24 10:59:24
● 2026-06-27 08:42:24
○A81.169.145.822015-06-23 → 2015-11-06 · 4 obs
● 2015-11-06 07:56:56
○ 2016-01-19 00:57:00
○ 2026-06-27 08:42:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, l.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| ostech.com | shades05.rzone.de, docks05.rzone.de | - |
✅ Authoritative Response
Server:185.132.34.132
NS records: shades05.rzone.de, docks05.rzone.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ostech.com (unsigned zone)
⏱️ Timing
Total: 1015ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 65.21.165.178 |
| NS | 2 | docks05.rzone.de, shades05.rzone.de |
| MX | 1 | smtpin.rzone.de (pri: 5) |
| SOA | 1 | shades05.rzone.de hostmaster.strato-rz.d |
Analysis
Hierarchy
mail.ostech.com is delegated beneath ostech.com.
IP Addresses
ostech.com directs to one IP number, which is 65.21.165.178.
Further host names like ostech.de and tinman.ostech.de overlap in IP numbers with ostech.com.
Name Servers
ostech.com uses two name servers for its delegation: docks05.rzone.de and shades05.rzone.de.
ostech.com has the same name server delegation as a number of other domains, such as tasteofmusic.de, fahrschule-fsk-marburg.de, rexperten.de and two more.
There is at least partial name server overlap between ostech.com and other domains — middenopdeveluwe.nl, tloehr.de, dhvss.org and two more among them.
These name servers regularly appear alongside shades14.rzone.de, docks19.rzone.de, docks02.rzone.de and 7 other name servers in NS record sets.
The two host names docks05.rzone.de and shades05.rzone.de each have a pair of IP addresses: docks05.rzone.de has 217.160.80.132 and 2001:8d8:fe:53:5747:2a74:d:5, and shades05.rzone.de has 185.132.34.132 and 2607:f1c0:fe:53:185:132:34:132.
Mail Servers
ostech.com routes its mail through a single mail server, smtpin.rzone.de.
ostech.com has the same mail server arrangement as a number of other domains, for example mail.xn--matthiasschweighfer-56b.de, mail.digital-penguin.net, bluefab.de and two more.
smtpin.rzone.de carries two IP numbers: 81.169.145.97 and 2a01:238:20a:202:50f0::1097.