pyvisa.com.mx - dns.ninja
pyvisa.com.mx
| DNSSEC | ⚠️ Not signed | ||||||
| A | 149.28.57.147🇺🇸 AS-VULTR149.28.32.0/19 Vultr Assigned Prefix | ||||||
| PTR | servidor.criticalserver1.net | ||||||
| NS | ns1.criticalserver1.net ⭐ | ||||||
| A | 149.28.57.147🇺🇸 AS-VULTR149.28.32.0/19 Vultr Assigned Prefix | ||||||
| PTR | servidor.criticalserver1.net | ||||||
| NS | ns1.criticalserver3.net | ||||||
| A | 149.28.57.147🇺🇸 AS-VULTR149.28.32.0/19 Vultr Assigned Prefix | ||||||
| PTR | servidor.criticalserver1.net | ||||||
| NS | ns2.criticalserver3.net | ||||||
| A | 149.28.57.147🇺🇸 AS-VULTR149.28.32.0/19 Vultr Assigned Prefix | ||||||
| PTR | servidor.criticalserver1.net | ||||||
| MX | pyvisa.com.mx ⭐ | ||||||
| A | 149.28.57.147🇺🇸 AS-VULTR149.28.32.0/19 Vultr Assigned Prefix | ||||||
| PTR | servidor.criticalserver1.net | ||||||
| TXT | v=spf1 ip4:149.28.57.147 +a +mx +ip4:52.117.216.138 ~all | ||||||
| SOA | ns1.criticalserver1.netservidores@criticalmail.net 2026-05-16 #1 | ||||||
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=1782499011 | ||||||
WOT: NOT_SAFE (44/100)
MX for
pyvisa.com.mx |
Subdomains
www.pyvisa.com.mx |
Same first word
pyvisa.readthedocs.io |
pyvisa.com.mx |
Similar names
DNS History
7 records (5 active, 2 former)
●NSns1.criticalserver1.net2026-03-17 → 2026-06-26 · 6 obs
● 2026-03-17 08:59:48
● 2026-06-06 17:34:18
○ 2026-06-06 18:11:56
● 2026-06-07 22:46:42
● 2026-06-26 19:15:30
●NSns1.criticalserver3.net2015-07-03 → 2026-06-26 · 2 obs
● 2026-06-26 19:15:30
●NSns2.criticalserver3.net2015-07-03 → 2026-06-26 · 2 obs
● 2026-06-26 19:15:30
●MXpyvisa.com.mx2015-07-03 → 2026-06-26 · 5 obs
● 2026-06-06 17:34:18
○ 2026-06-06 18:11:56
● 2026-06-07 22:46:42
● 2026-06-26 19:15:30
●A149.28.57.1472026-03-17 → 2026-06-26 · 6 obs
● 2026-03-17 08:59:48
● 2026-06-06 17:34:18
○ 2026-06-06 18:11:56
● 2026-06-07 22:46:42
● 2026-06-26 19:15:30
○A50.22.37.1342015-07-03 → 2020-01-10 · 4 obs
● 2020-01-10 03:18:22
○ 2026-03-17 08:59:48
○ 2026-06-26 19:15:30
○A52.117.216.1382026-03-17 → 2026-06-26 · 2 obs
○ 2026-06-26 19:15:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| mx | e.mx-ns.mx, c.mx-ns.mx, x.mx-ns.mx, o.mx-ns.mx... | - |
| pyvisa.com.mx | ns1.criticalserver3.net, ns2.criticalserver3.net | - |
✅ Authoritative Response
Server:149.28.57.147
NS records: ns1.criticalserver3.net, ns2.criticalserver3.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for pyvisa.com.mx (unsigned zone)
⏱️ Timing
Total: 1052ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 149.28.57.147 |
| NS | 2 | ns2.criticalserver3.net, ns1.criticalserver3.net |
| MX | 1 | pyvisa.com.mx (pri: 0) |
| TXT | 1 | v=spf1 ip4:149.28.57.147 +a +mx +ip4:52. |
| SOA | 1 | ns1.criticalserver1.net servidores.criti |
Analysis
Hierarchy
www.pyvisa.com.mx is delegated beneath pyvisa.com.mx.
Mail Server Role
pyvisa.com.mx acts as its own mail server.
IP Addresses
pyvisa.com.mx points to a single IP number: 149.28.57.147.
Additional host names — grupomaca.com.mx, labancerdiaz.com, plamosa.mx and two others — share IP numbers with pyvisa.com.mx.
Name Servers
pyvisa.com.mx is served by three name servers: ns1.criticalserver1.net, ns1.criticalserver3.net and ns2.criticalserver3.net.
There is at least partial name server overlap between pyvisa.com.mx and other domains — absorbent.com.mx, suajesdeprecision.com.mx, apoloseguridad.com.mx and two more among them.
These name servers are routinely deployed together with the name servers ns2.criticalserver1.net.
The hosts ns1.criticalserver1.net, ns1.criticalserver3.net and ns2.criticalserver3.net each direct to 149.28.57.147; one IP address covers all three.
ns1.criticalserver1.net, ns1.criticalserver3.net and ns2.criticalserver3.net are host names that all point to 149.28.57.147.
Mail Servers
pyvisa.com.mx has a single mail server: pyvisa.com.mx itself.
pyvisa.com.mx resolves to 149.28.57.147 and no other IP number.