ols.com.vn - robtex.com
ols.com.vn
com.vn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns-master.vnnic.vn ⭐ | ||||||
| NS | a.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | b.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | c.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | d.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | e.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | f.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | g.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| NS | h.dns-servers.vn ⚠️ Not in parent delegation | ||||||
| SOA | dns-master.vnnic.vnpostmaster@vnnic.vn serial=2022710669 | ||||||
Subdomains
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSrazvan.ns.cloudflare.com2026-05-01 → 2026-05-12 · 2 obs
● 2026-05-12 02:03:04
●NSselah.ns.cloudflare.com2026-05-01 → 2026-05-12 · 2 obs
● 2026-05-12 02:03:04
●MXmx1.larksuite.com2026-05-01 → 2026-05-12 · 2 obs
● 2026-05-12 02:03:04
●MXmx2.larksuite.com2026-05-01 → 2026-05-12 · 2 obs
● 2026-05-12 02:03:04
●MXmx3.larksuite.com2026-05-01 → 2026-05-12 · 2 obs
● 2026-05-12 02:03:04
●A103.74.120.352026-05-01 → 2026-05-12 · 2 obs
● 2026-05-12 02:03:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| vn | g.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, e.dns-servers.vn... | - |
| ols.com.vn | selah.ns.cloudflare.com, razvan.ns.cloudflare.com | - |
✅ Authoritative Response
Server:162.159.38.21
NS records: selah.ns.cloudflare.com, razvan.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ols.com.vn (unsigned zone)
⏱️ Timing
Total: 1153ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.74.120.35 |
| NS | 2 | razvan.ns.cloudflare.com, selah.ns.cloudflare.com |
| MX | 3 | mx1.larksuite.com (pri: 1), mx3.larksuite.com (pri: 10)... |
| TXT | 2 | v=spf1 +include:spf.onlarksuite.com -all, verification-code-site-App_lark=q3yDmh05 |
| SOA | 1 | razvan.ns.cloudflare.com dns.cloudflare. |
Analysis
Hierarchy
ols.com.vn is a parent of api.ols.com.vn, admin.ols.com.vn and www.ols.com.vn.
IP Addresses
ols.com.vn points to a single IP number: 103.74.120.35.
Other host names, for instance bknsrancher.orenda.vn, vlims.vn, www.ols.com.vn, www.vclinic.com.vn and portal.vpos.com.vn share IP numbers with ols.com.vn.
Name Servers
Delegation for ols.com.vn rests with two name servers, razvan.ns.cloudflare.com and selah.ns.cloudflare.com.
ols.com.vn shares the same name server setup as other domains, including odh.vn, companyincentiveplans.com, dagrassogroup.pl, tingee.vn and sadalisa.ru.
ols.com.vn at least partially shares name servers with other domains, for instance blancdelys.com, zazachat.com, morcos.tech, saechsische-schweiz-barrierefrei.de and kmpztr.ru.
These name servers are commonly used with the name servers adi.ns.cloudflare.com.
Host names with six IP numbers: razvan.ns.cloudflare.com points to: 2606:4700:58::a29f:2c4d, 2803:f800:50::6ca2:c34d, 2a06:98c1:50::ac40:234d, 108.162.195.77, 162.159.44.77 and 172.64.35.77. selah.ns.cloudflare.com points to: 2606:4700:50::a29f:2615, 2803:f800:50::6ca2:c215, 2a06:98c1:50::ac40:2215, 108.162.194.21, 162.159.38.21 and 172.64.34.21.
Mail Servers
ols.com.vn is handled by three mail servers: mx1.larksuite.com, mx2.larksuite.com and mx3.larksuite.com.
ols.com.vn shares mail servers with other domains at least in part, for instance zsolution.vn, aestheticar.com.sg, iotmaker.vn, ope.ai and supersvg.com.
Hostnames with three IP numbers:
mx3.larksuite.com points to: 18.139.153.173101.126.58.223 and 122.14.230.154.
Hostnames with one IP number:
mx1.larksuite.com points to: 18.139.153.173.
mx2.larksuite.com points to: 18.139.153.173.
Hostnames pointing to 18.139.153.173: mx3.larksuite.commx1.larksuite.com and mx2.larksuite.com.