`tis-jsc.com`

DNSSEC	⚠️ Not signed
A	112.213.89.78^{🇻🇳 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	`hector.dotvndns.com`
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	`mail93138.maychuemail.com` ⭐
		A	112.213.93.138^{🇻🇳 SUPERDATA112.213.93.0/24 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	`mail93138.maychuemail.com`
MX	`mx93138.maychuemail.net`⁽²⁰⁾
		A	112.213.93.138^{🇻🇳 SUPERDATA112.213.93.0/24 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	`mail93138.maychuemail.com`
TXT	`v=spf1 include:spf.maychuemail.com ~all`
SOA	`nsbak.pavietnam.net`hostmaster@tis-jsc.com 2025-11-04 #17

`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=1774819837

Same first word

tis-jsc.com

DNS History

12 records (6 active, 6 former)

○NSns1.dotvndns.vn2015-08-08 → 2016-03-07 · 4 obs

● 2015-08-08 00:38:56
● 2016-03-07 21:56:18
○ 2016-08-22 22:23:46
○ 2026-03-29 21:35:26

●NSns1.pavietnam.vn2015-08-08 → 2026-03-29 · 5 obs

● 2015-08-08 00:38:56
○ 2015-11-26 17:38:38
○ 2016-03-07 21:56:18
● 2016-08-22 22:23:46
● 2026-03-29 21:35:26

○NSns2.dotvndns.vn2015-11-26 → 2016-03-07 · 5 obs

○ 2015-08-08 00:38:56
● 2015-11-26 17:38:38
● 2016-03-07 21:56:18
○ 2016-08-22 22:23:46
○ 2026-03-29 21:35:26

●NSns2.pavietnam.vn2015-08-08 → 2026-03-29 · 5 obs

● 2015-08-08 00:38:56
○ 2015-11-26 17:38:38
○ 2016-03-07 21:56:18
● 2016-08-22 22:23:46
● 2026-03-29 21:35:26

●NSnsbak.pavietnam.net2015-08-08 → 2026-03-29 · 5 obs

● 2015-08-08 00:38:56
○ 2015-11-26 17:38:38
○ 2016-03-07 21:56:18
● 2016-08-22 22:23:46
● 2026-03-29 21:35:26

○MXmail.tis-jsc.com2017-04-01 → 2017-07-14 · 5 obs

○ 2016-08-22 22:23:46
● 2017-04-01 16:08:30
● 2017-07-14 15:01:02
○ 2026-03-29 21:35:24
○ 2026-03-29 21:35:26

●MXmail93138.maychuemail.com2026-03-29 → 2026-03-29 · 3 obs

○ 2017-07-14 15:01:02
● 2026-03-29 21:35:24
● 2026-03-29 21:35:26

○MXmx.viettelidc.com.vn2015-08-08 → 2016-08-22 · 4 obs

● 2015-08-08 00:38:56
● 2016-08-22 22:23:46
○ 2017-04-01 16:08:30
○ 2026-03-29 21:35:26

●MXmx93138.maychuemail.net2026-03-29 → 2026-03-29 · 3 obs

○ 2017-07-14 15:01:02
● 2026-03-29 21:35:24
● 2026-03-29 21:35:26

○A112.213.89.1092016-08-22 → 2017-07-14 · 5 obs

○ 2016-03-07 21:56:18
● 2016-08-22 22:23:46
● 2017-07-14 15:01:02
○ 2026-03-29 21:35:24
○ 2026-03-29 21:35:26

●A112.213.89.782026-03-29 → 2026-03-29 · 3 obs

○ 2017-07-14 15:01:02
● 2026-03-29 21:35:24
● 2026-03-29 21:35:26

○A115.84.177.592015-08-08 → 2016-03-07 · 4 obs

● 2015-08-08 00:38:56
● 2016-03-07 21:56:18
○ 2016-08-22 22:23:46
○ 2026-03-29 21:35:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
tis-jsc.com	nsbak.pavietnam.net, ns1.pavietnam.vn, ns2.pavietnam.vn	-

✅ Authoritative Response

Server:112.213.89.22

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tis-jsc.com (unsigned zone)

⏱️ Timing

Total: 1520ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`112.213.89.78`
NS	3	`ns1.pavietnam.vn, nsbak.pavietnam.net...`
MX	2	`mail93138.maychuemail.com (pri: 10), mx93138.maychuemail.net (pri: 20)`
TXT	1	`v=spf1 include:spf.maychuemail.com ~all`
SOA	1	`nsbak.pavietnam.net hostmaster.tis-jsc.c`

Analysis

IP Addresses

tis-jsc.com points to an IP address: 112.213.89.78.

other host names include mail.freshacademy.vn, giaiphapits.com, mail2.denshi.vn, cameraminhanh.com and ttvnetworks.com; they share IP numbers with tis-jsc.com.

Name Servers

tis-jsc.com is delegated to three name servers nsbak.pavietnam.net, ns1.pavietnam.vn and ns2.pavietnam.vn.

tis-jsc.com at least partially shares name servers with other domains, for instance tientuan.com.vn, thuenhahaiphong.com.vn, hoahung.vn, hdservice-trading.com and pharmacy.com.vn.

These name servers are commonly used alongside ns1.dotvndns.vn, ns2.dotvndns.vn and nsbak.dotvndns.com.

Host names with two IP numbers:

nsbak.pavietnam.net points to 2406:9c80::9000:302 and 112.213.89.22; ns1.pavietnam.vn points to 2406:9c80::66 and 112.213.89.3; ns2.pavietnam.vn points to 2406:9c80::9000:111 and 222.255.121.247.

Mail Servers

tis-jsc.com is handled by two mail servers: mail93138.maychuemail.com and mx93138.maychuemail.net.

tis-jsc.com uses the same mail server setup as other domains, for instance transco.com.vn, ugavietnam.com, izteach.com, vietnamhub.vn and thinhphatmep.vn.

tis-jsc.com shares at least some mail servers with other domains, for instance texenco.com.vn.

Host names with a single IP

mail93138.maychuemail.com points to 112.213.93.138

mx93138.maychuemail.net points to 112.213.93.138

Host names that point to 112.213.93.138: mail93138.maychuemail.com and mx93138.maychuemail.net

tis-jsc.com - robtex.com

tis-jsc.com

com

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

Mail Servers

`tis-jsc.com`

`com`