`pec-edu.vn`

DNSSEC	⚠️ Not signed
A	103.82.198.29^{🇻🇳 ECONET-AS-VN103.82.198.0/24 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	`ssd-rsl02.hostingvn.com`
NS	`ns4.tenten.vn.pec-edu.vn` ⭐
		A	103.82.198.29^{🇻🇳 ECONET-AS-VN103.82.198.0/24 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	`ssd-rsl02.hostingvn.com`
NS	`ns4.tenten.vn`
		A	2404:f080:1101:302:a163:44:193:20^{🇻🇳 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	`ns4.tenten.vn`
		A	103.18.7.204^{🇻🇳 GMO-ZCOM-AS-VN103.18.6.0/23 RUNSYSTEM-VN}
			PTR	`ns4.tenten.vn`
NS	`ns5.tenten.vn`
		A	2404:f080:1101:302:a163:44:193:21^{🇻🇳 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	`ns5.tenten.vn`
		A	103.18.7.205^{🇻🇳 GMO-ZCOM-AS-VN103.18.6.0/23 RUNSYSTEM-VN}
			PTR	`ns5.tenten.vn`
NS	`ns6.tenten.vn`
		A	2404:f080:1101:302:a163:44:193:22^{🇻🇳 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	`ns6.tenten.vn`
		A	52.74.6.184^{🇸🇬 Amazon52.74.0.0/16 SIN prefix}
			PTR	`ec2-52-74-6-184.ap-southeast-1.compute.amazonaws.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1f::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`pd-in-f26.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1a^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.27^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f27.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2607:f8b0:4001:c70::1b^{🇺🇸 Google2607:f8b0:4001::/48}
			PTR	`yucbful-in-f27.1e100.net`
		A	192.178.209.27^{🇺🇸 Google192.178.209.0/24}
			PTR	`yucbful-in-f27.1e100.net`
TXT	`v=spf1 include:_spf.google.com ~all`
TXT	`google-site-verification=HHwPB-8D53HerbzNGKQsNlfjTumUReTj-qKi0COPWD0`
SOA	`ns4.tenten.vn.pec-edu.vn`hostmaster@pec-edu.vn 2025-07-28 #16

`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=2030756167

Subdomains

cpanel.pec-edu.vn

tptfrwebdisk.pec-edu.vn

m.pec-edu.vn

mailhost.pec-edu.vn

mail8.pec-edu.vn

webdisk.pec-edu.vn

mailapp.pec-edu.vn

securesmtp.pec-edu.vn

pop3.pec-edu.vn

cpcalendars.pec-edu.vn

autoconfig.pec-edu.vn

webmail.pec-edu.vn

cpcontacts.pec-edu.vn

www.pec-edu.vn

autodiscover.pec-edu.vn

cocnocpanel.pec-edu.vn

eoxuxcpanel.pec-edu.vn

vn.pec-edu.vn

website.pec-edu.vn

mail.pec-edu.vn

Same first word

pec-edu.com

pec-edu.vn

DNS History

12 records (10 active, 2 former)

●NSns4.tenten.vn2018-05-13 → 2026-05-10 · 2 obs

● 2018-05-13 02:33:08
● 2026-05-10 21:35:24

●NSns4.tenten.vn.pec-edu.vn2018-05-13 → 2026-05-10 · 2 obs

● 2018-05-13 02:33:08
● 2026-05-10 21:35:24

●NSns5.tenten.vn2018-05-13 → 2026-05-10 · 2 obs

● 2018-05-13 02:33:08
● 2026-05-10 21:35:24

●NSns6.tenten.vn2018-05-13 → 2026-05-10 · 2 obs

● 2018-05-13 02:33:08
● 2026-05-10 21:35:24

●MXalt1.aspmx.l.google.com2026-02-19 → 2026-05-10 · 3 obs

○ 2018-05-13 02:33:08
● 2026-02-19 09:04:26
● 2026-05-10 21:35:24

●MXalt2.aspmx.l.google.com2026-02-19 → 2026-05-10 · 3 obs

○ 2018-05-13 02:33:08
● 2026-02-19 09:04:26
● 2026-05-10 21:35:24

●MXalt3.aspmx.l.google.com2026-02-19 → 2026-05-10 · 3 obs

○ 2018-05-13 02:33:08
● 2026-02-19 09:04:26
● 2026-05-10 21:35:24

●MXalt4.aspmx.l.google.com2026-02-19 → 2026-05-10 · 3 obs

○ 2018-05-13 02:33:08
● 2026-02-19 09:04:26
● 2026-05-10 21:35:24

●MXaspmx.l.google.com2026-02-19 → 2026-05-10 · 3 obs

○ 2018-05-13 02:33:08
● 2026-02-19 09:04:26
● 2026-05-10 21:35:24

○MXmail.pec-edu.vn2018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 02:33:08
○ 2026-02-19 09:04:26
○ 2026-05-10 21:35:24

●A103.82.198.292026-02-19 → 2026-05-10 · 3 obs

○ 2018-05-13 02:33:08
● 2026-02-19 09:04:26
● 2026-05-10 21:35:24

○A203.162.238.272018-05-13 → 2018-05-13 · 3 obs

● 2018-05-13 02:33:08
○ 2026-02-19 09:04:26
○ 2026-05-10 21:35:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
vn	c.dns-servers.vn, a.dns-servers.vn, e.dns-servers.vn, g.dns-servers.vn...	-
pec-edu.vn	ns5.tenten.vn, ns6.tenten.vn, ns4.tenten.vn	-

✅ Authoritative Response

Server:103.18.7.204

NS records: ns5.tenten.vn, ns6.tenten.vn, ns4.tenten.vn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for pec-edu.vn (unsigned zone)

⏱️ Timing

Total: 3370ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.82.198.29`
NS	3	`NS4.TENTEN.vn, NS6.TENTEN.vn...`
MX	5	`ALT4.ASPMX.L.GOOGLE.COM (pri: 10), ASPMX.L.GOOGLE.COM (pri: 1)...`
TXT	2	`v=spf1 include:_spf.google.com ~all, google-site-verification=HHwPB-8D53Herbz`
SOA	1	`ns4.tenten.vn.pec-edu.vn hostmaster.pec-`

Analysis

Hierarchy

pec-edu.vn is the parent of cpanel.pec-edu.vn, tptfrwebdisk.pec-edu.vn, m.pec-edu.vn, mailhost.pec-edu.vn, mail8.pec-edu.vn and a few other host names.

IP Addresses

pec-edu.vn resolves to one IP number: 103.82.198.29.

other host names including mail.vinapipe.com.vn, mail.vasimex.vn, cpcontacts.tpsi.vn, mail.satthephaiphong.com.vn and www.congnghetmt.com share IP numbers with pec-edu.vn.

Name Servers

pec-edu.vn is delegated to four name servers: ns4.tenten.vn, ns5.tenten.vn, ns6.tenten.vn and ns4.tenten.vn.pec-edu.vn.

pec-edu.vn at least partially shares name servers with other domains, for instance vinhomescity.com.vn, suckhoehonvang.vn, tiens.com.vn, maylocnuocchinhhang.vn and nanofilm.com.vn.

These name servers are commonly used with ns1.tenten.vn, ns2.tenten.vn and ns3.tenten.vn.

Host names with two IP numbers:

ns4.tenten.vn points to 2404:f080:1101:302:a163:44:193:20 and 103.18.7.204.

ns5.tenten.vn points to 2404:f080:1101:302:a163:44:193:21 and 103.18.7.205.

ns6.tenten.vn points to 2404:f080:1101:302:a163:44:193:22 and 52.74.6.184.

Host names with one IP number:

ns4.tenten.vn.pec-edu.vn points to 103.82.198.29.

Mail Servers

pec-edu.vn is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.

pec-edu.vn shares some mail servers with other domains, at least partially, for instance engineroom.co, janipro.com, postillustration.com, posmx.com and blogmarketing.it.