sdm.mx - dns.ninja
sdm.mx
| DNSSEC | ⚠️ Not signed | ||||||
| A | 216.55.137.95🇺🇸 CODERO-DFW-AS216.55.137.0/24 | ||||||
| PTR | sdm.mx | ||||||
| NS | master.e-xtranets.com ⭐ | ||||||
| A | 216.55.170.40🇺🇸 CODERO-DFW-AS216.55.170.0/24 Codero DFW | ||||||
| PTR | master.e-xtranets.com | ||||||
| NS | jupiter.e-xtranets.com ⚠️ Not in zone NS records | ||||||
| A | 216.55.137.95🇺🇸 CODERO-DFW-AS216.55.137.0/24 | ||||||
| PTR | sdm.mx | ||||||
| NS | ns1.e-xtranets.com ⚠️ Not in parent delegation | ||||||
| A | 216.55.137.95🇺🇸 CODERO-DFW-AS216.55.137.0/24 | ||||||
| PTR | sdm.mx | ||||||
| MX | mail.sdm.mx ⭐ | ||||||
| A | 216.55.137.95🇺🇸 CODERO-DFW-AS216.55.137.0/24 | ||||||
| PTR | sdm.mx | ||||||
| TXT | v=spf1 ip4:216.55.137.95 ~all | ||||||
| SOA | master.e-xtranets.comroot@master.e-xtranets.com 2023-10-09 #1 | ||||||
mx
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | m.mx-ns.mx ⭐ | ||||||
| NS | c.mx-ns.mx | ||||||
| NS | e.mx-ns.mx | ||||||
| NS | i.mx-ns.mx | ||||||
| NS | o.mx-ns.mx | ||||||
| NS | x.mx-ns.mx | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | m.mx-ns.mxhostmaster@nic.mx serial=1784097785 | ||||||
PTR for
Subdomains
mail.sdm.mx |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSjupiter.e-xtranets.com2026-02-20 → 2026-07-15 · 2 obs
● 2026-07-15 07:06:04
●NSmaster.e-xtranets.com2026-02-20 → 2026-07-15 · 2 obs
● 2026-07-15 07:06:04
●NSns1.e-xtranets.com2026-02-20 → 2026-07-15 · 2 obs
● 2026-07-15 07:06:04
●MXmail.sdm.mx2026-02-20 → 2026-07-15 · 2 obs
● 2026-07-15 07:06:04
●A216.55.137.952026-02-20 → 2026-07-15 · 2 obs
● 2026-07-15 07:06:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| mx | c.mx-ns.mx, i.mx-ns.mx, o.mx-ns.mx, m.mx-ns.mx... | - |
| sdm.mx | master.e-xtranets.com, jupiter.e-xtranets.com | - |
✅ Authoritative Response
Server:216.55.170.40
NS records: master.e-xtranets.com, jupiter.e-xtranets.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sdm.mx (unsigned zone)
⏱️ Timing
Total: 441ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.55.137.95 |
| NS | 2 | ns1.e-xtranets.com, master.e-xtranets.com |
| MX | 1 | mail.sdm.mx (pri: 10) |
| TXT | 1 | v=spf1 ip4:216.55.137.95 ~all |
| SOA | 1 | master.e-xtranets.com root.master.e-xtra |
Analysis
Hierarchy
sdm.mx serves as the parent of mail.sdm.mx.
IP Addresses
sdm.mx directs to one IP number, which is 216.55.137.95.
Among the host names that share IP numbers with sdm.mx are ns1.colegioweb.com, mail.sdm.mx, jupiter.e-xtranets.com and two others.
Name Servers
sdm.mx is delegated to three name servers: jupiter.e-xtranets.com, master.e-xtranets.com and ns1.e-xtranets.com.
sdm.mx has at least partial name server overlap with other domains, such as alfredonobel.edu.mx, colegioweb.net, delamora.org and two others.
localhost, main.e-xtranets.com and jupiter.colegioweb.com — plus 3 other name servers — are commonly paired with these name servers.
Each of the hostnames jupiter.e-xtranets.com, master.e-xtranets.com and ns1.e-xtranets.com has a single IP address assigned: jupiter.e-xtranets.com directs to 216.55.137.95, master.e-xtranets.com directs to 216.55.170.40 and ns1.e-xtranets.com directs to 216.55.137.95.
jupiter.e-xtranets.com and ns1.e-xtranets.com are host names that each point to 216.55.137.95 IP addresses.
Mail Servers
sdm.mx routes its mail through a single mail server, mail.sdm.mx.
mail.sdm.mx resolves to a single IP number: 216.55.137.95.