lenovomdc.com - robtex.com
lenovomdc.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.227.7.51🇨🇿 RESAL-AS91.227.7.0/24 route object | ||||||
| PTR | 51-7-227-91.dc.resal.cz | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| A | 2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s. | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block | ||||||
| PTR | ns2.web4u.cz | ||||||
| NS | ns.web4u.cz | ||||||
| A | 2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 185.14.224.241🇨🇿 WEB4U185.14.224.0/23 | ||||||
| PTR | ns.web4u.cz | ||||||
| MX | box.og.cz ⭐ | ||||||
| A | 90.182.39.29🇨🇿 O2-CZECH-REPUBLIC90.182.0.0/16 | ||||||
| PTR | box.og.cz | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2015-12-11 #1 | ||||||
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=1784365532 | ||||||
Same first word
lenovomdc.com |
DNS History
5 records (4 active, 1 former)
●A91.227.7.512026-02-21 → 2026-07-18 · 3 obs
● 2026-02-21 15:24:44
● 2026-07-18 09:14:08
○A91.227.7.612017-01-05 → 2018-07-29 · 4 obs
● 2018-07-29 13:57:32
○ 2026-02-21 15:24:44
○ 2026-07-18 09:14:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net, h.gtld-servers.net... | - |
| lenovomdc.com | ns.web4u.cz, ns2.web4u.cz | - |
✅ Authoritative Response
Server:185.14.224.241
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for lenovomdc.com (unsigned zone)
⏱️ Timing
Total: 749ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.227.7.51 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 1 | box.og.cz (pri: 10) |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
Analysis
IP Addresses
lenovomdc.com has exactly one IP address — 91.227.7.51.
51-7-227-91.dc.resal.cz, for instance, is one of the other host names sharing IP numbers with lenovomdc.com.
Name Servers
lenovomdc.com uses two name servers for its delegation: ns2.web4u.cz and ns.web4u.cz.
The name server configuration of lenovomdc.com is shared with other domains, for instance e-sledovani.eu, jofi.cz, kajmank.eu and two others.
The two host names ns2.web4u.cz and ns.web4u.cz each have a pair of IP addresses: ns2.web4u.cz has 85.207.53.12 and 2a02:a40:100:28ff::12, and ns.web4u.cz has 185.14.224.241 and 2001:1568:fd::241.
Mail Servers
lenovomdc.com uses one mail server — box.og.cz.
The mail server setup of lenovomdc.com matches that of other domains such as pospak.cz, sebkovi.info, poliklinikavinicni.cz and two others.
The mail servers of lenovomdc.com are at least partially shared with other domains, including zubar-brno.cz.
box.og.cz directs to just one IP number, 90.182.39.29.