ostlib.com - dns.ninja
ostlib.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.0.214.196🇨🇿 CASABLANCA-AS81.0.214.0/24 Casablanca INT | ||||||
| PTR | server.zialib.com | ||||||
| NS | server.zialib.com ⭐ | ||||||
| A | 81.0.214.196🇨🇿 CASABLANCA-AS81.0.214.0/24 Casablanca INT | ||||||
| PTR | server.zialib.com | ||||||
| NS | ns2.blueboard.cz | ||||||
| A | 2a01:4f8:13b:8d4::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 195.201.57.122🇩🇪 Hetzner195.201.0.0/16 HETZNER-DC | ||||||
| PTR | ns2.blueboard.cz | ||||||
| MX | server.zialib.com ⭐ | ||||||
| A | 81.0.214.196🇨🇿 CASABLANCA-AS81.0.214.0/24 Casablanca INT | ||||||
| PTR | server.zialib.com | ||||||
| SOA | server.zialib.comhostmaster@server.zialib.com 2018-01-31 #43 | ||||||
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=1782585535 | ||||||
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSnest.adaptic.cz2015-05-29 → 2017-06-19 · 4 obs
● 2017-06-19 23:24:40
○ 2026-02-23 14:17:54
○ 2026-06-27 18:42:30
●NSns2.blueboard.cz2015-05-29 → 2026-06-27 · 2 obs
● 2026-06-27 18:42:30
●NSserver.zialib.com2026-02-23 → 2026-06-27 · 3 obs
● 2026-02-23 14:17:54
● 2026-06-27 18:42:30
○MXnest.adaptic.cz2015-05-29 → 2017-06-19 · 4 obs
● 2017-06-19 23:24:40
○ 2026-02-23 14:17:54
○ 2026-06-27 18:42:30
○MXns2.blueboard.cz2015-05-29 → 2017-06-19 · 4 obs
● 2017-06-19 23:24:40
○ 2026-02-23 14:17:54
○ 2026-06-27 18:42:30
●MXserver.zialib.com2026-02-23 → 2026-06-27 · 3 obs
● 2026-02-23 14:17:54
● 2026-06-27 18:42:30
○A217.11.249.1462016-11-20 → 2017-06-19 · 5 obs
● 2016-11-20 00:22:52
● 2017-06-19 23:24:40
○ 2026-02-23 14:17:54
○ 2026-06-27 18:42:30
○A217.11.249.1572015-05-29 → 2016-04-16 · 4 obs
● 2016-04-16 16:13:04
○ 2016-11-20 00:22:52
○ 2026-06-27 18:42:30
●A81.0.214.1962026-02-23 → 2026-06-27 · 3 obs
● 2026-02-23 14:17:54
● 2026-06-27 18:42:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| ostlib.com | ns2.blueboard.cz, server.zialib.com | 1 record |
✅ Authoritative Response
Server:81.0.214.196
NS records: ns2.blueboard.cz, server.zialib.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ostlib.com (unsigned zone)
⏱️ Timing
Total: 701ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.0.214.196 |
| NS | 2 | ns2.blueboard.cz, server.zialib.com |
| MX | 1 | server.zialib.com (pri: 10) |
| SOA | 1 | server.zialib.com hostmaster.server.zial |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (server.zialib.com)
Analysis
IP Addresses
ostlib.com has exactly one IP address — 81.0.214.196.
svetpodpalmovkou.cz, rubidea.cz, server.zialib.com plus two other host names have IP numbers in common with ostlib.com.
Name Servers
ostlib.com uses two name servers for its delegation: server.zialib.com and ns2.blueboard.cz.
ostlib.com and other domains — fossilplantnames.com, zialib.com and svetpodpalmovkou.cz among them — share the same NS delegation.
There is at least partial name server overlap between ostlib.com and other domains — thestreet.cz, udrzbapodniku.cz, elwira.cz and two more among them.
The name servers shinzon.blueboard.cz, jaguar.blueboard.cz and ns2.miniserver.cz are often found in combination with these name servers.
Host names pointing to two IP addresses:
ns2.blueboard.cz directs traffic to 195.201.57.122 and 2a01:4f8:13b:8d4::2.
Host names resolving to a single IP address:
server.zialib.com has the IP address 81.0.214.196.
Mail Servers
ostlib.com uses one mail server — server.zialib.com.
The mail server setup of ostlib.com is identical to that of domains like svetpodpalmovkou.cz, fossilplantnames.com and zialib.com.