centrotandem.net - robtex.com
centrotandem.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 185.150.100.29🇪🇸 CUSTOS-AS185.150.100.0/24 | ||||||
| PTR | webs23.custos.es | ||||||
| NS | nsa.custos.es ⭐ | ||||||
| A | 185.150.100.18🇪🇸 CUSTOS-AS185.150.100.0/24 | ||||||
| PTR | nsa.custos.es | ||||||
| NS | nsb.custos.es | ||||||
| A | 185.150.100.19🇪🇸 CUSTOS-AS185.150.100.0/24 | ||||||
| PTR | nsb.custos.es | ||||||
| NS | nsc.custosmessium.com | ||||||
| A | 5.2.90.7🇪🇸 IPCORE-AS5.2.90.0/24 | ||||||
| PTR | nsc.custosmessium.com | ||||||
| MX | plank.b2n.org ⭐ | ||||||
| A | 185.150.100.31🇪🇸 CUSTOS-AS185.150.100.0/24 | ||||||
| PTR | plank.b2n.org | ||||||
| SOA | nsa.custos.eshostmaster@centrotandem.net 2020-07-03 #2 | ||||||
net
| 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=1786656084 | ||||||
Same first word
centrotandem.net |
centrotandem.org |
centrotandem.it |
Similar names
DNS History
10 records (5 active, 5 former)
○NSdocks10.rzone.de2015-05-13 → 2017-04-03 · 4 obs
● 2017-04-03 04:52:36
○ 2026-04-10 09:36:40
○ 2026-08-13 21:36:38
●NSnsa.custos.es2026-04-10 → 2026-08-13 · 3 obs
● 2026-04-10 09:36:40
● 2026-08-13 21:36:38
●NSnsb.custos.es2026-04-10 → 2026-08-13 · 3 obs
● 2026-04-10 09:36:40
● 2026-08-13 21:36:38
●NSnsc.custosmessium.com2026-04-10 → 2026-08-13 · 3 obs
● 2026-04-10 09:36:40
● 2026-08-13 21:36:38
○NSshades20.rzone.de2015-05-13 → 2017-04-03 · 4 obs
● 2017-04-03 04:52:36
○ 2026-04-10 09:36:40
○ 2026-08-13 21:36:38
●MXplank.b2n.org2026-04-10 → 2026-08-13 · 3 obs
● 2026-04-10 09:36:40
● 2026-08-13 21:36:38
○MXsmtp.rzone.de2015-05-13 → 2017-04-03 · 4 obs
● 2017-04-03 04:52:36
○ 2026-04-10 09:36:40
○ 2026-08-13 21:36:38
●A185.150.100.292026-04-10 → 2026-08-13 · 3 obs
● 2026-04-10 09:36:40
● 2026-08-13 21:36:38
○A2a01:238:20a:202:1081::2015-05-13 → 2017-04-03 · 4 obs
● 2017-04-03 04:52:36
○ 2026-04-10 09:36:40
○ 2026-08-13 21:36:38
○A81.169.145.812015-05-13 → 2017-04-03 · 4 obs
● 2017-04-03 04:52:36
○ 2026-04-10 09:36:40
○ 2026-08-13 21:36:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | l.gtld-servers.net, h.gtld-servers.net, m.gtld-servers.net, j.gtld-servers.net... | - |
| centrotandem.net | nsc.custosmessium.com, nsa.custos.es, nsb.custos.es | - |
✅ Authoritative Response
Server:5.2.90.7
NS records: nsc.custosmessium.com, nsa.custos.es, nsb.custos.es
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for centrotandem.net (unsigned zone)
⏱️ Timing
Total: 589ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.150.100.29 |
| NS | 3 | nsb.custos.es, nsa.custos.es... |
| MX | 1 | plank.b2n.org (pri: 10) |
| SOA | 1 | nsa.custos.es hostmaster.centrotandem.ne |
Analysis
IP Addresses
centrotandem.net has exactly one IP address — 185.150.100.29.
ortizsierra.com, www.publidist.com, publidist.com plus two other host names have IP numbers in common with centrotandem.net.
Name Servers
The authoritative name servers for centrotandem.net are nsc.custosmessium.com, nsa.custos.es and nsb.custos.es — three in total.
There is at least partial name server overlap between centrotandem.net and other domains — b2n.org, 103.150.185.in-addr.arpa, gorkiya.es and two more among them.
These name servers frequently co-occur with the name servers nsd.custos.es and nsa.custosmessium.com.
The hostnames nsc.custosmessium.com, nsa.custos.es and nsb.custos.es each resolve to a single IP: nsc.custosmessium.com → 5.2.90.7, nsa.custos.es → 185.150.100.18, nsb.custos.es → 185.150.100.19.
Mail Servers
centrotandem.net uses one mail server — plank.b2n.org.
The mail server setup of centrotandem.net is identical to that of domains like iriepal.es, autorecupera.com and ecars.com.es.
At least some of centrotandem.net's mail servers are shared with other domains, among them custos.es, activatenred.es and b2n.org.
These mail servers are routinely seen in conjunction with the mail servers mxplanb.custos.es and mail3.custos.es.
plank.b2n.org directs to just one IP number, 185.150.100.31.