cmcalc.com - robtex.com
cmcalc.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.81.87.176🇻🇳 HOSTINGVIET-AS-VN103.81.87.0/24 HOSTINGVIET-VN | ||||||
| NS | ns1.hostingviet.vn ⭐ | ||||||
| A | 112.213.89.3🇻🇳 SUPERDATA112.213.89.0/24 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 24th floor, VNTA Tower, Duong Dinh Nghe, Cau Giay, Hanoi | ||||||
| PTR | ns1.dotvndns.vn | ||||||
| NS | ns2.hostingviet.vn | ||||||
| A | 222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | static.vdc.vn | ||||||
| PTR | static.vnpt.vn | ||||||
| MX | mail.cmcalc.com ⭐ | ||||||
| A | 103.81.87.176🇻🇳 HOSTINGVIET-AS-VN103.81.87.0/24 HOSTINGVIET-VN | ||||||
| TXT | google-site-verification=gJz1bQQZ8_-5pjnZ6BhNiarMbQ9F4j757MpUfZajVtw | ||||||
| TXT | v=spf1 a mx ~all | ||||||
| SOA | ns1.hostingviet.vnhostmaster@cmcalc.com 2026-03-08 #6 | ||||||
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=1771291435 | ||||||
Same first word
cmcalc.com |
Similar names
DNS History
12 records (4 active, 8 former)
○NShx22015-10-23 → 2017-06-20 · 5 obs
● 2015-10-23 03:32:18
● 2017-06-20 13:59:32
○ 2026-03-17 22:33:24
○ 2026-03-23 05:03:02
●NSns1.hostingviet.vn2026-03-17 → 2026-03-23 · 3 obs
● 2026-03-17 22:33:24
● 2026-03-23 05:03:02
○NSns1.ndw.ru2015-05-22 → 2015-05-22 · 3 obs
○ 2015-10-23 03:32:18
○ 2026-03-23 05:03:02
●NSns2.hostingviet.vn2026-03-17 → 2026-03-23 · 3 obs
● 2026-03-17 22:33:24
● 2026-03-23 05:03:02
○NSns2.ndw.ru2015-05-22 → 2015-05-22 · 3 obs
○ 2015-10-23 03:32:18
○ 2026-03-23 05:03:02
○NSns3.hostxserver.com2015-10-23 → 2017-06-20 · 5 obs
● 2015-10-23 03:32:18
● 2017-06-20 13:59:32
○ 2026-03-17 22:33:24
○ 2026-03-23 05:03:02
○NSns4.hostxserver.com2015-10-23 → 2017-06-20 · 5 obs
● 2015-10-23 03:32:18
● 2017-06-20 13:59:32
○ 2026-03-17 22:33:24
○ 2026-03-23 05:03:02
●MXmail.cmcalc.com2015-05-22 → 2026-03-23 · 2 obs
● 2026-03-23 05:03:02
●A103.81.87.1762026-03-17 → 2026-03-23 · 3 obs
● 2026-03-17 22:33:24
● 2026-03-23 05:03:02
○A176.9.33.22015-05-22 → 2015-05-22 · 3 obs
○ 2015-10-23 03:32:18
○ 2026-03-23 05:03:02
○A193.169.86.1242015-10-23 → 2017-06-20 · 5 obs
● 2015-10-23 03:32:18
● 2017-06-20 13:59:32
○ 2026-03-17 22:33:24
○ 2026-03-23 05:03:02
○A42.112.30.392026-03-17 → 2026-03-23 · 2 obs
○ 2026-03-23 05:03:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | m.gtld-servers.net, f.gtld-servers.net, j.gtld-servers.net, c.gtld-servers.net... | - |
| cmcalc.com | ns1.hostingviet.vn, ns2.hostingviet.vn | - |
✅ Authoritative Response
Server:222.255.121.247
NS records: ns1.hostingviet.vn, ns2.hostingviet.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cmcalc.com (unsigned zone)
⏱️ Timing
Total: 2210ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.81.87.176 |
| NS | 2 | ns1.hostingviet.vn, ns2.hostingviet.vn |
| MX | 1 | mail.cmcalc.com (pri: 10) |
| TXT | 2 | google-site-verification=gJz1bQQZ8_-5pjn, v=spf1 a mx ~all |
| SOA | 1 | ns1.hostingviet.vn hostmaster.cmcalc.com |
Analysis
IP Addresses
cmcalc.com points to a single IP address: 103.81.87.176.
Name Servers
cmcalc.com is delegated to two name servers: ns1.hostingviet.vn and ns2.hostingviet.vn.
cmcalc.com uses the same name server setup as other domains, including misuko.vn, truongminh.biz, dietmoicontrung.org, hoanghapackaging.com and baidaivandon.com.
At least part of the name servers for cmcalc.com are shared with other domains, for instance asukaluxury.com, atvstpquangbinh.gov.vn, haisanquynhon.vn, tubepphuctho.vn and viettelnamdinh.com.vn.
These name servers are commonly used alongside ns1.dotvndns.vn and nsbak.pavietnam.vn.
Hostnames with a single IP
ns1.hostingviet.vn resolves to: 112.213.89.3.
ns2.hostingviet.vn resolves to: 222.255.121.247.
Mail Servers
The mail server for cmcalc.com is mail.cmcalc.com.
Host mail.cmcalc.com points to IP 103.81.87.176.