bthitechvn.com - dns.ninja

`bthitechvn.com`

DNSSEC	⚠️ Not signed
A	103.77.162.29^{🇻🇳 SUPERDATA103.77.162.0/24 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	`warsaw.maychu.cloud`
NS	`nsbak.pavietnam.net` ⭐
		A	2406:9c80::9000:302^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`nsbak.dotvndns.com`
		A	112.213.89.22^{🇻🇳 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	`ns8922.dotvndns.vn`
NS	`ns1.pavietnam.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	`ns2.pavietnam.vn`
		A	2406:9c80::9000:111^{🇻🇳 SUPERDATA2406:9c80::/48 -VN}
			PTR	`ns2.dotvndns.vn`
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.vn`
MX	`mail23584.maychuemail.com` ⭐
		A	222.255.235.84^{🇻🇳 VDC222.255.235.0/24 VNPT}
			PTR	`mail23584.maychuemail.com`
			PTR	`240798.static.maychudns.com`
MX	`mx9084.maychuemail.net`⁽¹⁰⁾
		A	112.213.90.84^{🇻🇳 SUPERDATA112.213.90.0/24 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	`mx9084.maychuemail.net`
TXT	`v=spf1 include:spf.maychuemail.com ~all`
SOA	`nsbak.pavietnam.net`hostmaster@bthitechvn.com 2026-06-06 #21

`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.net`nstld@verisign-grs.com serial=1783972412

Subdomains

mail.bthitechvn.com

www.bthitechvn.com

Same first word

bthitechvn.com

DNS History

11 records (6 active, 5 former)

○NSns1.dotvndns.vn2015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 13:36:14
○ 2015-10-18 03:12:52
○ 2026-07-13 20:14:46

●NSns1.pavietnam.vn2015-10-18 → 2026-07-13 · 3 obs

○ 2015-05-26 13:36:14
● 2015-10-18 03:12:52
● 2026-07-13 20:14:46

○NSns2.dotvndns.vn2015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 13:36:14
○ 2015-10-18 03:12:52
○ 2026-07-13 20:14:46

●NSns2.pavietnam.vn2015-10-18 → 2026-07-13 · 3 obs

○ 2015-05-26 13:36:14
● 2015-10-18 03:12:52
● 2026-07-13 20:14:46

●NSnsbak.pavietnam.net2017-02-13 → 2026-07-13 · 3 obs

○ 2015-10-18 03:12:52
● 2017-02-13 07:02:24
● 2026-07-13 20:14:46

○MXmail.bthitechvn.com2015-05-26 → 2017-02-13 · 4 obs

● 2015-05-26 13:36:14
● 2017-02-13 07:02:24
○ 2019-01-28 20:30:42
○ 2026-07-13 20:14:46

●MXmail23584.maychuemail.com2019-01-28 → 2026-07-13 · 3 obs

○ 2017-02-13 07:02:24
● 2019-01-28 20:30:42
● 2026-07-13 20:14:46

●MXmx9084.maychuemail.net2019-01-28 → 2026-07-13 · 3 obs

○ 2017-02-13 07:02:24
● 2019-01-28 20:30:42
● 2026-07-13 20:14:46

●A103.77.162.292026-04-04 → 2026-07-13 · 3 obs

○ 2019-01-28 20:30:42
● 2026-04-04 14:59:54
● 2026-07-13 20:14:46

○A112.213.89.152015-10-18 → 2019-01-28 · 5 obs

○ 2015-05-26 13:36:14
● 2015-10-18 03:12:52
● 2019-01-28 20:30:42
○ 2026-04-04 14:59:54
○ 2026-07-13 20:14:46

○A112.213.89.942015-05-26 → 2015-05-26 · 3 obs

● 2015-05-26 13:36:14
○ 2015-10-18 03:12:52
○ 2026-07-13 20:14:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	m.gtld-servers.net, a.gtld-servers.net, c.gtld-servers.net, e.gtld-servers.net...	-
bthitechvn.com	nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn	-

✅ Authoritative Response

Server:222.255.121.247

NS records: nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bthitechvn.com (unsigned zone)

⏱️ Timing

Total: 1323ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.77.162.29`
NS	3	`nsbak.pavietnam.net, ns1.pavietnam.vn...`
MX	2	`mx9084.maychuemail.net (pri: 10), mail23584.maychuemail.com (pri: 5)`
TXT	1	`v=spf1 include:spf.maychuemail.com ~all`
SOA	1	`nsbak.pavietnam.net hostmaster.bthitechv`

Analysis

Hierarchy

mail.bthitechvn.com and www.bthitechvn.com each fall under bthitechvn.com as their parent domain.

IP Addresses

bthitechvn.com resolves to just one IP address, 103.77.162.29.

Two other host names, along with www.didongmy.com, autodiscover.dovetec.vn and cpcontacts.dovetec.vn, also share IP numbers with bthitechvn.com.

Name Servers

bthitechvn.com has three name servers — nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.

The name servers of bthitechvn.com overlap at least partially with those of other domains — among them appletree.edu.vn, shinevision.vn, longan.gov.vn and two more.

These name servers commonly appear in delegations together with ns1.dotvndns.vn, ns2.dotvndns.vn, nsbak.dotvndns.com and 3 other.

Each of nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn points to two IP numbers. nsbak.pavietnam.net points to 112.213.89.22 and 2406:9c80::9000:302. ns1.pavietnam.vn points to 112.213.89.3 and 2406:9c80::66. ns2.pavietnam.vn points to 222.255.121.247 and 2406:9c80::9000:111.

Mail Servers

bthitechvn.com is served by two mail servers, mail23584.maychuemail.com and mx9084.maychuemail.net.

Other domains such as vae.com.vn, giconduit.com and idcsaigon.com share the same mail server setup as bthitechvn.com.

Both mail23584.maychuemail.com and mx9084.maychuemail.net have a single IP address each — mail23584.maychuemail.com resolves to 222.255.235.84 while mx9084.maychuemail.net resolves to 112.213.90.84.