libresense.cz - robtex.com
libresense.cz
| DNSSEC | ⚠️ Not signed | ||||||
| NS | abtnsdmz1.abbott.com ⭐ | ||||||
| A | 130.36.47.201🇺🇸 AS21899130.36.40.0/21 Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 | ||||||
| PTR | abtnsdmz1.abbott.com | ||||||
| NS | abtnsdmz2.abbott.com ⚠️ Not in zone NS records | ||||||
| A | 20.64.178.77🇺🇸 Microsoft20.64.0.0/10 | ||||||
| NS | rossns.abbott.com | ||||||
| A | 13.66.215.214🇺🇸 Microsoft13.64.0.0/11 MICROSOFT | ||||||
| NS | rossns2.abbott.com | ||||||
| A | 20.64.178.77🇺🇸 Microsoft20.64.0.0/10 | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | abtnsdmz1.abbott.comdnsdomainadminstrator@sjm.com serial=14 | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1774948640 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSabtnsdmz1.abbott.com2026-03-30 → 2026-03-31 · 2 obs
● 2026-03-31 09:32:38
●NSabtnsdmz2.abbott.com2026-03-30 → 2026-03-31 · 2 obs
● 2026-03-31 09:32:38
●NSrossns.abbott.com2026-03-30 → 2026-03-31 · 2 obs
● 2026-03-31 09:32:38
●NSrossns2.abbott.com2026-03-30 → 2026-03-31 · 2 obs
● 2026-03-31 09:32:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| libresense.cz | abtnsdmz1.abbott.com, abtnsdmz2.abbott.com, rossns.abbott.com, rossns2.abbott.com | - |
✅ Authoritative Response
Server:130.36.47.201
NS records: abtnsdmz1.abbott.com, abtnsdmz2.abbott.com, rossns.abbott.com, rossns2.abbott.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for libresense.cz (unsigned zone)
⏱️ Timing
Total: 876ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | rossns.abbott.com, rossns2.abbott.com... |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | abtnsdmz1.abbott.com dnsdomainadminstrat |
Analysis
Name Servers
libresense.cz is delegated to four name servers: abtnsdmz1.abbott.com, abtnsdmz2.abbott.com, rossns2.abbott.com and rossns.abbott.com.
libresense.cz at least partially shares name servers with other domains, for instance pickyeating.com, similacsensitivetort.org, givefreestyleatry.com, flexiflo.ch and knowmoremr.co.
Host names with a single IP:
abtnsdmz1.abbott.com points to 130.36.47.201
abtnsdmz2.abbott.com points to 20.64.178.77
rossns2.abbott.com points to 20.64.178.77
rossns.abbott.com points to 13.66.215.214
Host names pointing to 20.64.178.77: abtnsdmz2.abbott.com and rossns2.abbott.com