cernyserif.com - robtex.com
cernyserif.com
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=1785703387 | ||||||
Subdomains
www.cernyserif.com |
Same first word
cernyserif.com |
DNS History
17 records (7 active, 10 former)
○NSalfa.ns.active24.cz2015-05-19 → 2017-12-21 · 4 obs
● 2017-12-21 01:26:06
○ 2026-07-27 14:35:00
○ 2026-08-02 21:00:18
○NSbeta.ns.active24.cz2015-05-19 → 2017-12-21 · 4 obs
● 2017-12-21 01:26:06
○ 2026-07-27 14:35:00
○ 2026-08-02 21:00:18
●NSns1.websupport.cz2026-07-27 → 2026-08-02 · 3 obs
● 2026-07-27 14:35:00
● 2026-08-02 21:00:18
●NSns2.websupport.cz2026-07-27 → 2026-08-02 · 3 obs
● 2026-07-27 14:35:00
● 2026-08-02 21:00:18
●NSns3.websupport.eu2026-07-27 → 2026-08-02 · 3 obs
● 2026-07-27 14:35:00
● 2026-08-02 21:00:18
○MXin.smtp.cz2015-05-19 → 2016-12-26 · 4 obs
● 2016-12-26 20:40:00
○ 2017-12-21 01:26:06
○ 2026-08-02 21:00:18
●MXmailin1.cernyserif.com2026-07-27 → 2026-08-02 · 3 obs
● 2026-07-27 14:35:00
● 2026-08-02 21:00:18
●MXmailin2.cernyserif.com2026-07-27 → 2026-08-02 · 3 obs
● 2026-07-27 14:35:00
● 2026-08-02 21:00:18
○MXmx.smtp.cz2015-05-19 → 2016-12-26 · 4 obs
● 2016-12-26 20:40:00
○ 2017-12-21 01:26:06
○ 2026-08-02 21:00:18
○MXmx1.active24.com2017-12-21 → 2017-12-21 · 4 obs
● 2017-12-21 01:26:06
○ 2026-07-27 14:35:00
○ 2026-08-02 21:00:18
○MXmx2.active24.com2017-12-21 → 2017-12-21 · 4 obs
● 2017-12-21 01:26:06
○ 2026-07-27 14:35:00
○ 2026-08-02 21:00:18
●A2a01:28:ca:112::1:522026-07-27 → 2026-08-02 · 3 obs
● 2026-07-27 14:35:00
● 2026-08-02 21:00:18
○A2a02:4a8:ac24:104::98:1352015-05-19 → 2016-12-26 · 4 obs
● 2016-12-26 20:40:00
○ 2017-12-21 01:26:06
○ 2026-08-02 21:00:18
●A46.234.126.2092026-07-27 → 2026-08-02 · 3 obs
● 2026-07-27 14:35:00
● 2026-08-02 21:00:18
○A81.2.239.152016-11-08 → 2016-12-26 · 5 obs
● 2016-11-08 10:25:42
● 2016-12-26 20:40:00
○ 2017-12-21 01:26:06
○ 2026-08-02 21:00:18
○A81.2.253.2532017-12-21 → 2017-12-21 · 4 obs
● 2017-12-21 01:26:06
○ 2026-07-27 14:35:00
○ 2026-08-02 21:00:18
○A81.95.98.1352015-05-19 → 2016-03-24 · 4 obs
● 2016-03-24 10:59:18
○ 2016-11-08 10:25:42
○ 2026-08-02 21:00:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net, b.gtld-servers.net... | - |
| cernyserif.com | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:185.71.159.12
NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 419ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.234.126.209 |
| AAAA | 1 | 2a01:28:ca:112::1:52 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 2 | mailin1.cernyserif.com (pri: 10), mailin2.cernyserif.com (pri: 100) |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
Hierarchy
www.cernyserif.com is delegated beneath cernyserif.com.
IP Addresses
cernyserif.com points to the IP addresses 46.234.126.209 and 2a01:28:ca:112::1:52
olive.fhosting.eu, f-hosting.cz, prague-taxi.eu and two other host names share IP numbers with cernyserif.com.
Name Servers
Three name servers are authoritative for cernyserif.com: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
There is at least partial name server overlap between cernyserif.com and other domains — kinderzimmer.sk, cuds.cz, ool.cz and two more among them.
ns1.websupport.cz resolves to 45.10.97.11 and 2a10:bbc0::11. ns2.websupport.cz resolves to 185.71.159.12 and 2a02:250:3::12. ns3.websupport.eu resolves to 45.10.97.13 and 2a10:bbc0::13. All three hostnames point to two IP numbers each.
Mail Servers
Mail for cernyserif.com is handled by two mail servers — mailin1.cernyserif.com and mailin2.cernyserif.com.
Each of the two host names carries two IP addresses: mailin1.cernyserif.com points to 45.13.137.8 and 2a00:4b40:aaaa:2101:45:13:137:8, and mailin2.cernyserif.com points to 45.13.137.9 and 2a00:4b40:aaaa:2101:45:13:137:9.