sdchemvn.com - robtex.com
sdchemvn.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 171.244.139.204🇻🇳 VIETEL-AS-AP171.244.136.0/21 Proxy-registered route object | ||||||
| NS | ns1.dotvndns.vn ⭐ | ||||||
| A | 2406:9c80::66🇻🇳 SUPERDATA2406:9c80::/48 -VN | ||||||
| PTR | ns1.dotvndns.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 | ns1.its.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.its.vn | ||||||
| A | 222.255.121.247🇻🇳 VDC222.255.121.0/24 VNPT | ||||||
| PTR | static.vdc.vn | ||||||
| PTR | static.vnpt.vn | ||||||
| MX | mail.sdchemvn.com ⭐ | ||||||
| A | 171.244.139.204🇻🇳 VIETEL-AS-AP171.244.136.0/21 Proxy-registered route object | ||||||
| TXT | v=spf1 +a +mx +ip4:171.244.139.204 +ip4:115.84.182.49 ~all | ||||||
| SOA | ns1.dotvndns.vnhostmaster@sdchemvn.com 2025-12-15 #15 | ||||||
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=1777163786 | ||||||
Subdomains
mail.sdchemvn.com |
Same first word
sdchemvn.com |
DNS History
6 records (5 active, 1 former)
●NSns1.dotvndns.vn2017-08-10 → 2026-04-26 · 2 obs
● 2026-04-26 01:06:00
●MXmail.sdchemvn.com2017-08-10 → 2026-04-26 · 2 obs
● 2026-04-26 01:06:00
○A115.84.182.492017-08-10 → 2017-08-10 · 3 obs
○ 2026-03-13 14:56:36
○ 2026-04-26 01:06:00
●A171.244.139.2042026-03-13 → 2026-04-26 · 3 obs
● 2026-03-13 14:56:36
● 2026-04-26 01:06:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sdchemvn.com | ns1.dotvndns.vn, ns1.its.vn, ns2.its.vn | - |
✅ Authoritative Response
Server:112.213.89.3
NS records: ns1.dotvndns.vn, ns1.its.vn, ns2.its.vn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sdchemvn.com (unsigned zone)
⏱️ Timing
Total: 1482ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 171.244.139.204 |
| NS | 3 | ns1.dotvndns.vn, ns2.its.vn... |
| MX | 1 | mail.sdchemvn.com (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +ip4:171.244.139.204 +ip4: |
| SOA | 1 | ns1.dotvndns.vn hostmaster.sdchemvn.com |
Analysis
Hierarchy
sdchemvn.com is parent of mail.sdchemvn.com.
IP Addresses
sdchemvn.com points to a single IP: 171.244.139.204.
Other host names, for instance mail.saigonvan.com, mail.legiaphuc.com, mail.vietlien.vn, deshvina.com and mail.hoptri.com share IP numbers with sdchemvn.com.
Name Servers
sdchemvn.com is delegated to three name servers: ns1.dotvndns.vn, ns1.its.vn and ns2.its.vn.
sdchemvn.com at least partially shares its name servers with other domains, for instance anhduongco.vn, luatnguyenbun.com, omt.vn, manhtuan.com and cidvietnamstd.vn.
These name servers are commonly paired with ns2.dotvndns.vn, nsbak.dotvndns.com, ns1.pavietnam.vn, ns2.pavietnam.vn, ns3.dotvndns.vn, nsbak.pavietnam.net, ns3.its.vn, ns1.sapo.vn and ns2.sapo.vn.
Host names with two IP numbers:
ns1.dotvndns.vn points to: 2406:9c80::66 and 112.213.89.3.
Host names with one IP number:
ns1.its.vn points to: 112.213.89.3.
ns2.its.vn points to: 222.255.121.247.
Host names that point to 112.213.89.3: ns1.dotvndns.vn and ns1.its.vn.
Mail Servers
sdchemvn.com is served by a single mail server, mail.sdchemvn.com.
mail.sdchemvn.com points to IP number 171.244.139.204.