oswald.cz - robtex.com
oswald.cz
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=1774421235 | ||||||
Subdomains
holubnik.oswald.cz |
Same first word
Similar names
DNS History
12 records (6 active, 6 former)
○NSalfa.ns.active24.cz2015-06-14 → 2020-02-16 · 3 obs
● 2020-02-16 04:41:06
○ 2026-03-25 07:19:44
○NSbeta.ns.active24.cz2015-06-14 → 2020-02-16 · 3 obs
● 2020-02-16 04:41:06
○ 2026-03-25 07:19:44
○NSgama.ns.active24.sk2015-06-14 → 2020-02-16 · 3 obs
● 2020-02-16 04:41:06
○ 2026-03-25 07:19:44
●NSns1.websupport.cz2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 07:19:44
●NSns2.websupport.cz2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 07:19:44
●NSns3.websupport.eu2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 07:19:44
○MXholubnik.oswald.cz2015-06-14 → 2020-02-16 · 3 obs
● 2020-02-16 04:41:06
○ 2026-03-25 07:19:44
●MXsmtp.google.com2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 07:19:44
●A2a00:4b40:aaaa:2011::72026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 07:19:44
●A37.9.175.2112026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 07:19:44
○A81.31.45.842015-06-14 → 2015-10-28 · 4 obs
● 2015-10-28 11:29:18
○ 2016-01-16 15:49:12
○ 2026-03-25 07:19:44
○A81.95.96.1662016-01-16 → 2020-02-16 · 4 obs
● 2016-01-16 15:49:12
● 2020-02-16 04:41:06
○ 2026-03-25 07:19:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| oswald.cz | ns3.websupport.eu, ns1.websupport.cz, ns2.websupport.cz | - |
✅ Authoritative Response
Server:185.71.159.12
NS records: ns3.websupport.eu, ns1.websupport.cz, ns2.websupport.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1134ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.211 |
| AAAA | 1 | 2a00:4b40:aaaa:2011::7 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 1 | smtp.google.com (pri: 1) |
| TXT | 2 | google-site-verification=xSDIRpL-0s_jAGj, v=spf1 a mx include:spf.smartemailing.cz |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
Hierarchy
holubnik.oswald.cz has oswald.cz as its parent.
IP Addresses
oswald.cz points to two IPs: 2a00:4b40:aaaa:2011::7 and 37.9.175.211.
Other host names, for instance nrw.slovart.cz, www.ap19.cz, kovobrouseni.cz, mail.mscomposit.com and ox.manag.com share IP numbers with oswald.cz.
Name Servers
oswald.cz is delegated to name servers ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
oswald.cz at least partially shares name servers with other domains such as anteria.cz, coregroup.sk, ruseks.eu, 1923.cz and mas-as.com.
Host names with two IP numbers:
ns1.websupport.cz points to 2a10:bbc0::11 and 45.10.97.11.
ns2.websupport.cz points to 2a02:250:3::12 and 185.71.159.12.
ns3.websupport.eu points to 2a10:bbc0::13 and 45.10.97.13.
Mail Servers
oswald.cz is handled by a single mail server, smtp.google.com.
oswald.cz shares the same mail server setup as other domains, including ulti.cl, euroinstal.md, botgp.com, thefemalebodyguard.com and shubertpaints.com.
oswald.cz shares mail servers with other domains at least in part, for instance timetable.ism.edu.kg, simplifyonething.com, hub.taxi, yummitto.com and yachay.pe.
Host name smtp.google.com points to nine IP numbers: 2607:f8b0:4023:c0b::1a, 2607:f8b0:4023:c0b::1b, 2607:f8b0:4023:c0d::1a, 2607:f8b0:4023:c0d::1b, 74.125.137.27, 142.250.141.26, 142.250.141.27, 142.251.2.26 and 142.251.2.27.