sdm.com.mx - dns.ninja
sdm.com.mx
com.mx
| DNSSEC | ⚠️ Not signed | ||||||
| NS | m.mx-ns.mx ⭐ ⚠️ Not in parent delegation | ||||||
| NS | c.mx-ns.mx ⚠️ Not in parent delegation | ||||||
| NS | e.mx-ns.mx ⚠️ Not in parent delegation | ||||||
| NS | i.mx-ns.mx ⚠️ Not in parent delegation | ||||||
| NS | o.mx-ns.mx ⚠️ Not in parent delegation | ||||||
| NS | x.mx-ns.mx ⚠️ Not in parent delegation | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | m.mx-ns.mxhostmaster@nic.mx serial=1784157727 | ||||||
Subdomains
www.sdm.com.mx |
Same first word
Similar names
DNS History
12 records (9 active, 3 former)
●NSjupiter.colegioweb.com2015-08-09 → 2026-07-16 · 2 obs
● 2026-07-16 00:07:50
●NSlocalhost2015-08-09 → 2026-07-16 · 4 obs
● 2017-11-05 14:35:58
○ 2026-07-11 05:26:40
● 2026-07-16 00:07:50
●NSmaster.colegioweb.com2015-08-09 → 2026-07-16 · 2 obs
● 2026-07-16 00:07:50
●MXalt1.aspmx.l.google.com2026-03-24 → 2026-07-16 · 4 obs
● 2026-03-24 13:40:48
○ 2026-07-11 05:26:40
● 2026-07-16 00:07:50
●MXalt2.aspmx.l.google.com2026-03-24 → 2026-07-16 · 4 obs
● 2026-03-24 13:40:48
○ 2026-07-11 05:26:40
● 2026-07-16 00:07:50
●MXalt3.aspmx.l.google.com2026-03-24 → 2026-07-16 · 4 obs
● 2026-03-24 13:40:48
○ 2026-07-11 05:26:40
● 2026-07-16 00:07:50
●MXalt4.aspmx.l.google.com2026-03-24 → 2026-07-16 · 4 obs
● 2026-03-24 13:40:48
○ 2026-07-11 05:26:40
● 2026-07-16 00:07:50
●MXaspmx.l.google.com2026-03-24 → 2026-07-16 · 4 obs
● 2026-03-24 13:40:48
○ 2026-07-11 05:26:40
● 2026-07-16 00:07:50
○MXmail.sdm.com.mx2015-08-09 → 2017-11-05 · 4 obs
● 2017-11-05 14:35:58
○ 2026-03-24 13:40:48
○ 2026-07-16 00:07:50
○A173.201.38.1532015-08-09 → 2016-02-05 · 4 obs
● 2016-02-05 14:06:44
○ 2016-08-08 02:59:38
○ 2026-07-16 00:07:50
○A206.225.95.1632016-08-08 → 2017-11-05 · 5 obs
● 2016-08-08 02:59:38
● 2017-11-05 14:35:58
○ 2026-03-24 13:40:48
○ 2026-07-16 00:07:50
●A216.55.170.402026-03-24 → 2026-07-16 · 4 obs
● 2026-03-24 13:40:48
○ 2026-07-11 05:26:40
● 2026-07-16 00:07:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| mx | c.mx-ns.mx, e.mx-ns.mx, i.mx-ns.mx, m.mx-ns.mx... | - |
| sdm.com.mx | master.colegioweb.com, jupiter.colegioweb.com | - |
✅ Authoritative Response
Server:216.55.137.95
NS records: master.colegioweb.com, jupiter.colegioweb.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sdm.com.mx (unsigned zone)
⏱️ Timing
Total: 452ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.55.170.40 |
| NS | 2 | master.colegioweb.com, jupiter.colegioweb.com |
| MX | 5 | ALT2.ASPMX.L.GOOGLE.COM (pri: 5), ALT4.ASPMX.L.GOOGLE.COM (pri: 10)... |
| TXT | 3 | MS=B2D81CE1ACA5004284D22CF889AEAAFB11185, v=spf1 include:_spf.google.com ~all... |
| SOA | 1 | localhost root.localhost |
Analysis
Hierarchy
sdm.com.mx is the parent zone for www.sdm.com.mx.
IP Addresses
sdm.com.mx has exactly one IP address — 216.55.170.40.
mail.colegioweb.net, mail.serviscorpion.com.mx, mail.e-xtranets.org plus two other host names have IP numbers in common with sdm.com.mx.
Name Servers
Three name servers are authoritative for sdm.com.mx: localhost, jupiter.colegioweb.com and master.colegioweb.com.
sdm.com.mx partially shares its NS delegation with several other domains, including freeasiahot(0x736578).com, gratisnederlandse(0x706f726e)o.com, 116.129.14.in-addr.arpa and two others.
In DNS configurations, these name servers often share authority with main.e-xtranets.com, zeus.colegioweb.com, jupiter.e-xtranets.com and 7 other name servers.
jupiter.colegioweb.com resolves to 216.55.137.95. master.colegioweb.com resolves to 216.55.170.40. Both host names point to a single IP number.
Mail Servers
Mail for sdm.com.mx is handled by five mail servers, namely aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
At least some of the mail servers used by sdm.com.mx are shared with other domains: marketgrill.com.br, zonaplata.es, rgc.edu.in and two others among them.
These mail servers are often deployed together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.
Host names pointing to two IP addresses:
aspmx.l.google.com maps to two IP addresses — 172.253.62.27 and 2607:f8b0:4004:c06::1a.
alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.27 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.27 and 2a00:1450:400b:c02::1a.
alt3.aspmx.l.google.com maps to two IP addresses — 192.178.223.26 and 2a00:1450:4009:c0f::1a.
alt4.aspmx.l.google.com maps to two IP addresses — 172.253.157.27 and 2a00:1450:400c:c23::1b.