`sfb.com.vn`

DNSSEC	⚠️ Not signed
A	222.252.18.89^{🇻🇳 VTN-1222.252.16.0/20 VNPT-Net}
		PTR	`mail.sfb.vn`
NS	`ns-b3.tenten.vn` ⭐
		A	2404:f080:1101:321:a150:95:110:1232^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`va150-95-110-123-2.a00e.g.han1.static.cnode.io`
		A	163.44.207.21^{🇻🇳 GMO-ZCOM-AS-VN163.44.206.0/23 RUNSYSTEM-VN}
			PTR	`v163-44-207-21.a006.g.han1.static.cnode.io`
NS	`ns-b1.tenten.vn`
		A	2404:f080:1101:321:a150:95:110:1230^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`va150-95-110-123-0.a00e.g.han1.static.cnode.io`
		A	137.59.104.67^{🇻🇳 GMO-ZCOM-AS-VN137.59.104.0/22 RUNSYSTEM-VN}
			PTR	`static-pool.tenten.vn`
NS	`ns-b2.tenten.vn`
		A	2404:f080:1101:321:a150:95:110:1231^{🇻🇳 GMO-ZCOM-AS-VN2404:f080:1000::/36 GMO-Z.com RUNSYSTEM JSC. Ocean Park Building 6th Floor, 1 Dao Duy Anh, Phuong Mai Ward, Dong Da Dist, Ha Noi}
			PTR	`va150-95-110-123-1.a00e.g.han1.static.cnode.io`
		A	137.59.104.68^{🇻🇳 GMO-ZCOM-AS-VN137.59.104.0/22 RUNSYSTEM-VN}
			PTR	`static-pool.tenten.vn`
MX	`mail.sfb.com.vn` ⭐
		A	222.252.18.89^{🇻🇳 VTN-1222.252.16.0/20 VNPT-Net}
			PTR	`mail.sfb.vn`
TXT	`v=spf1mxaip4:222.252.18.89~all`
SOA	`ns-b3.tenten.vn`noreply@tenten.vn serial=1684382630

`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.vn`postmaster@vnnic.vn serial=2022671370

Subdomains

mail.sfb.com.vn

Same first word

sfb.email

sfb.org.za

sfb.accountants

sfb.kr

sfb.it

sfb.biz

sfb.ru

sfb.com.vn

sfb.digital

sfb.hamburg

sfb.uk.com

sfb.nl

sfb.net.au

sfb.sk

sfb.fr

sfb.me

sfb.net

sfb.global

sfb.ch

sfb.es

sfb.org.pe

sfb.de

sfb.lu

sfb.se

sfb.co.uk

sfb.ie

sfb.com

sfb.org

sfb.group

sfb.gov.tw

sfb.org.br

sfb.rs

sfb.info

sfb.no

sfb.cz

sfb.company

sfb.edu.rs

sfb.be

sfb.tv

sfb.swiss

sfb.freeboxos.fr

sfb.at

Similar names

fbs.academy

fbs.com.vn

bfs.solutions

bsf.se

sbf.it

fsb.kz

fsb.info

bfs.us

bsf.me

bsf.si

bfs.education

bsf.lv

bsf.sa

sbf.be

bfs.eu.com

fsb.mobi

fbs.co.jp

fbs.ie

fsb.church

fsb.life

fbs.com.tw

bfs.net.pl

bsf.cc

bsf.dk

sbf.info

fbs.network

fbs.co.uk

fsb.co

fbs.cloud

fsb.email

fbs.com

bfs.asia

bsf.gov.in

bfs.no

fbs.edu.kw

fbs.ee

bfs.ba

bsf.su

bfs.ro

bfs.net.au

fbs.me

fsb.ch

bsf.org.il

bsf.net

fbs.support

fbs.id

fbs.org

fbs.by

bfs.org.uk

bsf.co.nz

fbs.cl

fbs.be

fsb.or.kr

fsb.org.pt

fbs.report

sbf.no

sbf.nl

fbs.company

bsf.vn

bfs.design

fsb.agency

bsf.fr

bfs.co.id

bfs.de

bfs.ch

sbf.com.mx

sbf.stat.no

fsb.asia

fbs.one

fbs.co.in

fbs.su

fbs.es

fbs.la

bsf.international

bfs.org.au

bfs.ee

fbs.partners

bfs.com.pe

fbs.at

fsb.ac.th

fsb.org.uk

fbs.forex

fsb.eu

sbf.ro

bfs.is

sbf.today

bsf.com

fsb.me

DNS History

14 records (5 active, 9 former)

●NSns-b1.tenten.vn2026-04-12 → 2026-04-14 · 3 obs

○ 2016-08-16 21:17:44
● 2026-04-12 04:10:22
● 2026-04-14 23:07:36

●NSns-b2.tenten.vn2026-04-12 → 2026-04-14 · 3 obs

○ 2016-08-16 21:17:44
● 2026-04-12 04:10:22
● 2026-04-14 23:07:36

●NSns-b3.tenten.vn2026-04-12 → 2026-04-14 · 3 obs

○ 2016-08-16 21:17:44
● 2026-04-12 04:10:22
● 2026-04-14 23:07:36

○NSns1.digipowerdns.com2015-05-25 → 2016-08-16 · 4 obs

● 2015-05-25 01:06:24
● 2016-08-16 21:17:44
○ 2026-04-12 04:10:22
○ 2026-04-14 23:07:36

○NSns2.digipowerdns.com2015-05-25 → 2016-08-16 · 4 obs

● 2015-05-25 01:06:24
● 2016-08-16 21:17:44
○ 2026-04-12 04:10:22
○ 2026-04-14 23:07:36

○NSns3.digipowerdns.com2015-05-25 → 2016-08-16 · 4 obs

● 2015-05-25 01:06:24
● 2016-08-16 21:17:44
○ 2026-04-12 04:10:22
○ 2026-04-14 23:07:36

○NSns4.digipowerdns.com2015-05-25 → 2016-08-16 · 4 obs

● 2015-05-25 01:06:24
● 2016-08-16 21:17:44
○ 2026-04-12 04:10:22
○ 2026-04-14 23:07:36

○MXalt1.aspmx.l.google.com2015-05-25 → 2016-08-16 · 4 obs

● 2015-05-25 01:06:24
● 2016-08-16 21:17:44
○ 2026-04-12 04:10:22
○ 2026-04-14 23:07:36

○MXalt2.aspmx.l.google.com2015-05-25 → 2016-08-16 · 4 obs

● 2015-05-25 01:06:24
● 2016-08-16 21:17:44
○ 2026-04-12 04:10:22
○ 2026-04-14 23:07:36

○MXaspmx.l.google.com2015-05-25 → 2016-08-16 · 4 obs

● 2015-05-25 01:06:24
● 2016-08-16 21:17:44
○ 2026-04-12 04:10:22
○ 2026-04-14 23:07:36

○MXaspmx2.googlemail.com2015-05-25 → 2016-08-16 · 4 obs

● 2015-05-25 01:06:24
● 2016-08-16 21:17:44
○ 2026-04-12 04:10:22
○ 2026-04-14 23:07:36

●MXmail.sfb.com.vn2026-04-12 → 2026-04-14 · 3 obs

○ 2016-08-16 21:17:44
● 2026-04-12 04:10:22
● 2026-04-14 23:07:36

●A222.252.18.892026-04-12 → 2026-04-14 · 3 obs

○ 2016-08-16 21:17:44
● 2026-04-12 04:10:22
● 2026-04-14 23:07:36

○A42.112.19.662015-05-25 → 2016-08-16 · 4 obs

● 2015-05-25 01:06:24
● 2016-08-16 21:17:44
○ 2026-04-12 04:10:22
○ 2026-04-14 23:07:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	a.dns-servers.vn, b.dns-servers.vn, c.dns-servers.vn, d.dns-servers.vn...	-
sfb.com.vn	ns-b3.tenten.vn, ns-b1.tenten.vn, ns-b2.tenten.vn	-

✅ Authoritative Response

Server:163.44.207.21

NS records: ns-b3.tenten.vn, ns-b1.tenten.vn, ns-b2.tenten.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sfb.com.vn (unsigned zone)

⏱️ Timing

Total: 3821ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`222.252.18.89`
NS	3	`ns-b1.tenten.vn, ns-b2.tenten.vn...`
MX	1	`mail.sfb.com.vn (pri: 10)`
TXT	1	`v=spf1mxaip4:222.252.18.89~all`
SOA	1	`ns-b3.tenten.vn noreply.tenten.vn`

Analysis

Hierarchy

sfb.com.vn is the parent of mail.sfb.com.vn.

IP Addresses

sfb.com.vn resolves to one IP number: 222.252.18.89.

Other host names, for instance ns4.tenten.vn.sll.vn, mail.sll.vn and mail.sfb.com.vn share IP numbers with sfb.com.vn.

Name Servers

sfb.com.vn is delegated to three name servers ns-b1.tenten.vn, ns-b2.tenten.vn and ns-b3.tenten.vn.

sfb.com.vn at least partially shares name servers with other domains, for instance thangmaythuanphat.vn, nguyenthang.name.vn, 1boss.vn, phuongdonggreenpark.net.vn and bosstraining.vn.

Host names with two IP numbers:

ns-b1.tenten.vn points to: 2404:f080:1101:321:a150:95:110:1230 and 137.59.104.67.

ns-b2.tenten.vn points to: 2404:f080:1101:321:a150:95:110:1231 and 137.59.104.68.

ns-b3.tenten.vn points to: 2404:f080:1101:321:a150:95:110:1232 and 163.44.207.21.

Mail Servers

sfb.com.vn is handled by a single mail server, mail.sfb.com.vn.

mail.sfb.com.vn resolves to IP 222.252.18.89.

sfb.com.vn - robtex.com

sfb.com.vn

com.vn

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`sfb.com.vn`

`com.vn`