`bigbb.vn`

DNSSEC	⚠️ Not signed
A	123.30.182.167^{🇻🇳 VTN-1123.30.182.0/24 VNPT}
		PTR	`static.vnpt.vn`
NS	`ns1.vdconline.vn` ⭐
		A	14.225.41.137^{🇻🇳 VNPT-AS-VN14.225.41.0/24 VNPT}
			PTR	`static.vnpt.vn`
NS	`ns2.vdconline.vn`
		A	14.225.197.109^{🇻🇳 VNPT-AS-VN14.225.197.0/24 VNPT}
			PTR	`static.vnpt.vn`
MX	`mx2.zoho.com` ⭐
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
MX	`mx.zoho.com`⁽²⁰⁾
		A	136.143.191.44^{🇺🇸 ZohoAS136.143.190.0/23 Zoho Corporation}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
		A	204.141.33.44^{🇺🇸 ZohoAS204.141.32.0/23 PNAP-DAL CASE00103239}
			PTR	`mx2.zoho.com`
			PTR	`mx3.zoho.com`
			PTR	`mx6.zoho.com`
			PTR	`mx7.zoho.com`
			PTR	`mx8.zoho.com`
			PTR	`mx.zoho.com`
			PTR	`mx2.zohomail.com`
			PTR	`mx3.zohomail.com`
			PTR	`mx.zohomail.com`
TXT	`v=spf1 include:zoho.com ~all`
SOA	`ns1.vdconline.vn`vdconline@tld 2025-12-23 #58

`vn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`dns-master.vnnic.vn` ⭐
	NS	`a.dns-servers.vn`
	NS	`b.dns-servers.vn`
	NS	`c.dns-servers.vn`
	NS	`d.dns-servers.vn`
	NS	`e.dns-servers.vn`
	NS	`f.dns-servers.vn`
	NS	`g.dns-servers.vn`
	NS	`h.dns-servers.vn`
	SOA	`dns-master.vnnic.vn`postmaster@vnnic.vn serial=2030759590

Subdomains

www.bigbb.vn

tichdiem.bigbb.vn

Same first word

bigbb.vn

Similar names

bbbig.kr

DNS History

8 records (5 active, 3 former)

●NSns1.vdconline.vn2015-05-09 → 2026-05-11 · 2 obs

● 2015-05-09 12:23:22
● 2026-05-11 15:05:56

●NSns2.vdconline.vn2015-05-09 → 2026-05-11 · 2 obs

● 2015-05-09 12:23:22
● 2026-05-11 15:05:56

●MXmx.zoho.com2026-02-21 → 2026-05-11 · 2 obs

● 2026-02-21 15:59:04
● 2026-05-11 15:05:56

●MXmx2.zoho.com2026-02-21 → 2026-05-11 · 2 obs

● 2026-02-21 15:59:04
● 2026-05-11 15:05:56

○A108.167.180.2192016-07-27 → 2017-03-27 · 5 obs

○ 2016-01-17 05:59:02
● 2016-07-27 07:17:46
● 2017-03-27 19:39:34
○ 2026-02-21 15:59:04
○ 2026-05-11 15:05:56

○A115.84.177.512015-10-14 → 2016-01-17 · 5 obs

○ 2015-05-09 12:23:22
● 2015-10-14 04:10:58
● 2016-01-17 05:59:02
○ 2016-07-27 07:17:46
○ 2026-05-11 15:05:56

●A123.30.182.1672026-02-21 → 2026-05-11 · 6 obs

○ 2017-03-27 19:39:34
● 2026-02-21 15:59:04
● 2026-03-23 18:26:22
○ 2026-03-26 14:10:50
● 2026-03-26 17:52:54
● 2026-05-11 15:05:56

○A123.30.50.1102015-05-09 → 2015-05-09 · 3 obs

● 2015-05-09 12:23:22
○ 2015-10-14 04:10:58
○ 2026-05-11 15:05:56

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
bigbb.vn	ns1.vdconline.vn, ns2.vdconline.vn	2 records

✅ Authoritative Response

Server:14.225.197.109

NS records: ns1.vdconline.vn, ns2.vdconline.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bigbb.vn (unsigned zone)

⏱️ Timing

Total: 1777ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`123.30.182.167`
NS	2	`ns1.vdconline.vn, ns2.vdconline.vn`
MX	2	`mx2.zoho.com (pri: 20), mx.zoho.com (pri: 10)`
TXT	1	`v=spf1 include:zoho.com ~all`
SOA	1	`ns1.vdconline.vn vdconline.tld`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.vdconline.vn, ns1.vdconline.vn)

Analysis

Hierarchy

bigbb.vn is a parent of www.bigbb.vn and tichdiem.bigbb.vn.

IP Addresses

bigbb.vn points to a single IP address: 123.30.182.167.

Other host names such as sieuthivienthong.vn, economica.com.vn, vieta.vn, toppy.vn and undp.org.vn share IP numbers with bigbb.vn.

Name Servers

bigbb.vn is delegated to two name servers: ns1.vdconline.vn and ns2.vdconline.vn.

bigbb.vn uses the same name server setup as other domains, including elizabethhotel.com.vn, nishio.com.vn, vnptgreen.vn, qlntcaphecaosunghean.vn and techino.vn.

bigbb.vn shares some name servers with other domains, for example ppl.vn.

Hostnames with a single IP

ns1.vdconline.vn resolves to: 14.225.41.137.

ns2.vdconline.vn resolves to: 14.225.197.109.

Mail Servers

bigbb.vn is handled by two mail servers: mx2.zoho.com and mx.zoho.com.

bigbb.vn uses the same mail server setup as other domains, for instance floordepot.co.uk, edupay.com.ua, patelinvestment.com, oregonppa.org and lemertech.com.

bigbb.vn shares at least some mail servers with other domains, for example unocace.com, ani.am, rottengolveda.com, christopherjyates.com and digitalconnect.in.

these mail servers are frequently used alongside the mail servers mx3.zoho.com.

Host names with two IPs:

mx.zoho.com points to 136.143.191.44 and 204.141.33.44.

Host names with one IP:

mx2.zoho.com points to 204.141.33.44.

Host names pointing to 204.141.33.44:

mx.zoho.com and mx2.zoho.com.

bigbb.vn - robtex.com

bigbb.vn

vn