duo75.com - robtex.com
duo75.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2800:6c0:2::a:10f🇦🇷 AS278232800:6c0::/32 LACNIC generated route6 for Dattatec.com | ||||||
| PTR | a010.dattaweb.com | ||||||
| A | 200.58.112.67🇦🇷 AS27823200.58.112.0/24 LACNIC generated route for Dattatec.com | ||||||
| NS | ns3.hostmar.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 200.58.112.193🇦🇷 AS27823200.58.112.0/24 LACNIC generated route for Dattatec.com | ||||||
| PTR | ns3.hostmar.com | ||||||
| NS | ns1.donweb.com ⚠️ Not in zone NS records | ||||||
| A | 200.58.112.193🇦🇷 AS27823200.58.112.0/24 LACNIC generated route for Dattatec.com | ||||||
| PTR | ns3.hostmar.com | ||||||
| NS | ns2.donweb.com ⚠️ Not in zone NS records | ||||||
| A | 200.58.112.101🇦🇷 AS27823200.58.112.0/24 LACNIC generated route for Dattatec.com | ||||||
| PTR | ns4.hostmar.com | ||||||
| NS | ns4.hostmar.com ⚠️ Not in parent delegation | ||||||
| A | 200.58.112.101🇦🇷 AS27823200.58.112.0/24 LACNIC generated route for Dattatec.com | ||||||
| PTR | ns4.hostmar.com | ||||||
| MX | mail.duo75.com ⭐ | ||||||
| A | 2800:6c0:2::a:10f🇦🇷 AS278232800:6c0::/32 LACNIC generated route6 for Dattatec.com | ||||||
| PTR | a010.dattaweb.com | ||||||
| A | 200.58.112.67🇦🇷 AS27823200.58.112.0/24 LACNIC generated route for Dattatec.com | ||||||
| PTR | a010.dattaweb.com | ||||||
| MX | mx1.duo75.com(20) | ||||||
| A | 200.58.122.206🇦🇷 AS27823200.58.122.0/24 LACNIC generated route for Dattatec.com | ||||||
| PTR | mxbkp.hostmar.com | ||||||
| TXT | v=spf1 include:comp.hostmar.com -all | ||||||
| SOA | ns3.hostmar.comroot@hostmar.com 2026-07-29 #0 | ||||||
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=1786948179 | ||||||
Subdomains
Same first word
duo75.com |
Similar names
DNS History
12 records (8 active, 4 former)
○NSf1g1ns1.dnspod.net2016-12-20 → 2017-11-18 · 4 obs
● 2017-11-18 08:19:22
○ 2026-07-20 12:49:54
○ 2026-08-17 06:48:50
○NSf1g1ns2.dnspod.net2016-12-20 → 2017-11-18 · 4 obs
● 2017-11-18 08:19:22
○ 2026-07-20 12:49:54
○ 2026-08-17 06:48:50
●NSns1.donweb.com2026-07-20 → 2026-08-17 · 3 obs
● 2026-07-20 12:49:54
● 2026-08-17 06:48:50
●NSns2.donweb.com2026-07-20 → 2026-08-17 · 3 obs
● 2026-07-20 12:49:54
● 2026-08-17 06:48:50
●NSns3.hostmar.com2026-07-20 → 2026-08-17 · 3 obs
● 2026-07-20 12:49:54
● 2026-08-17 06:48:50
●NSns4.hostmar.com2026-07-20 → 2026-08-17 · 3 obs
● 2026-07-20 12:49:54
● 2026-08-17 06:48:50
●MXmail.duo75.com2026-07-20 → 2026-08-17 · 2 obs
● 2026-08-17 06:48:50
●MXmx1.duo75.com2026-07-20 → 2026-08-17 · 2 obs
● 2026-08-17 06:48:50
○A103.6.73.342016-12-20 → 2016-12-20 · 3 obs
○ 2017-11-18 08:19:22
○ 2026-08-17 06:48:50
●A200.58.112.672026-07-20 → 2026-08-17 · 3 obs
● 2026-07-20 12:49:54
● 2026-08-17 06:48:50
●A2800:6c0:2::a:10f2026-07-20 → 2026-08-17 · 3 obs
● 2026-07-20 12:49:54
● 2026-08-17 06:48:50
○CNAMEduo.rpg-go.com2016-12-20 → 2017-11-18 · 4 obs
● 2017-11-18 08:19:22
○ 2026-07-20 12:49:54
○ 2026-08-17 06:48:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, a.gtld-servers.net, j.gtld-servers.net, f.gtld-servers.net... | - |
| duo75.com | ns1.donweb.com, ns2.donweb.com | 2 records |
✅ Authoritative Response
Server:200.58.112.101
NS records: ns1.donweb.com, ns2.donweb.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for duo75.com (unsigned zone)
⏱️ Timing
Total: 606ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 200.58.112.67 |
| AAAA | 1 | 2800:6c0:2::a:10f |
| NS | 2 | ns3.hostmar.com, ns4.hostmar.com |
| MX | 2 | mx1.duo75.com (pri: 20), mail.duo75.com (pri: 0) |
| TXT | 1 | v=spf1 include:comp.hostmar.com -all |
| SOA | 1 | ns3.hostmar.com root.hostmar.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.donweb.com, ns2.donweb.com)
Analysis
Hierarchy
The parent domain of mail.duo75.com and mx1.duo75.com is duo75.com.
IP Addresses
duo75.com resolves to the IP addresses 200.58.112.67 and 2800:6c0:2::a:10f
Among the host names that share IP numbers with duo75.com are mail.procise.com.mx, mail.riotech.com.ar, _dc-mx.bdeb6f3c9610.invasiondelamordedios.com and two others.
Name Servers
The domain duo75.com is delegated to these four name servers: ns1.donweb.com, ns2.donweb.com, ns3.hostmar.com and ns4.hostmar.com.
duo75.com partially shares its NS delegation with several other domains, including guazuseguridad.com, gysconstrucciones.com.ar, lacasadelosvinos.com.ar and two others.
In DNS configurations, these name servers often share authority with ns21.dattatec.com, ns22.dattatec.com, ns1.donweb.cl and 4 other name servers.
Host names ns1.donweb.com, ns2.donweb.com, ns3.hostmar.com and ns4.hostmar.com each have one IP address. Notably, ns1.donweb.com and ns3.hostmar.com resolve to the same address 200.58.112.193, and ns2.donweb.com and ns4.hostmar.com resolve to the same address 200.58.112.101.
ns1.donweb.com and ns3.hostmar.com each have 200.58.112.193 IP addresses.
ns2.donweb.com and ns4.hostmar.com each have 200.58.112.101 IP addresses.
Mail Servers
The MX records for duo75.com point to two mail servers: mail.duo75.com and mx1.duo75.com.
Hosts with two IP numbers each:
The A records for mail.duo75.com return 200.58.112.67 and 2800:6c0:2::a:10f.
Hosts that resolve to one IP address:
mx1.duo75.com resolves to the IP address 200.58.122.206.