`drcong.com`

DNSSEC	⚠️ Not signed
A	210.245.8.134^{🇻🇳 FPT-AS-AP210.245.8.0/21 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
NS	`ns1.dotvndns.vn` ⭐ ⚠️ Not in parent delegation
		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	`ns1.sapo.vn` ⚠️ Not in zone NS records
		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.dotvndns.vn` ⚠️ Not in parent delegation
		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`
NS	`ns2.sapo.vn` ⚠️ Not in zone NS records
		A	222.255.121.247^{🇻🇳 VDC222.255.121.0/24 VNPT}
			PTR	`static.vdc.vn`
			PTR	`static.vnpt.vn`
MX	`mail.drcong.com` ⭐
		A	210.245.8.134^{🇻🇳 FPT-AS-AP210.245.8.0/21 Vietnam Internet Network Information Center (VNNIC) 18 Nguyen Du Str, Hai Ba Trung District, Hanoi City, Vietnam 10th floor, MITEC Tower, Duong Dinh Nghe, Cau Giay, Hanoi}
TXT	`v=spf1 a mx ~all`
SOA	`ns1.dotvndns.vn`hostmaster@drcong.com 2025-06-11 #2

`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=1778299726

Subdomains

mail.drcong.com

www.drcong.com

Same first word

drcong.com

Similar names

grdcon.com

docnrg.com

rongcd.cn

orgcdn.com

cgnord.de

rgocdn.com

drngoc.vn

nrgdoc.com

rogcdn.net

drcngo.com

gdcorn.com

cgnord.se

DNS History

17 records (6 active, 11 former)

●NSns1.dotvndns.vn2026-03-15 → 2026-05-09 · 3 obs

○ 2017-01-25 22:12:26
● 2026-03-15 06:10:10
● 2026-05-09 04:19:08

●NSns1.sapo.vn2026-03-15 → 2026-05-09 · 3 obs

○ 2017-01-25 22:12:26
● 2026-03-15 06:10:10
● 2026-05-09 04:19:08

●NSns2.dotvndns.vn2026-03-15 → 2026-05-09 · 3 obs

○ 2017-01-25 22:12:26
● 2026-03-15 06:10:10
● 2026-05-09 04:19:08

●NSns2.sapo.vn2026-03-15 → 2026-05-09 · 3 obs

○ 2017-01-25 22:12:26
● 2026-03-15 06:10:10
● 2026-05-09 04:19:08

○NSns43.domaincontrol.com2016-04-25 → 2016-04-25 · 4 obs

○ 2016-01-24 01:32:24
● 2016-04-25 01:13:28
○ 2017-01-25 22:12:26
○ 2026-05-09 04:19:08

○NSns44.domaincontrol.com2016-04-25 → 2016-04-25 · 4 obs

○ 2016-01-24 01:32:24
● 2016-04-25 01:13:28
○ 2017-01-25 22:12:26
○ 2026-05-09 04:19:08

○NSwww.drcong.com2015-10-26 → 2016-01-24 · 4 obs

● 2015-10-26 22:02:08
● 2016-01-24 01:32:24
○ 2016-04-25 01:13:28
○ 2026-05-09 04:19:08

○MXio.bouncemx.com2015-10-26 → 2016-01-24 · 4 obs

● 2015-10-26 22:02:08
● 2016-01-24 01:32:24
○ 2016-04-25 01:13:28
○ 2026-05-09 04:19:08

●MXmail.drcong.com2026-03-15 → 2026-05-09 · 3 obs

○ 2017-01-25 22:12:26
● 2026-03-15 06:10:10
● 2026-05-09 04:19:08

○MXmailstore1.secureserver.net2016-04-25 → 2016-04-25 · 4 obs

○ 2016-01-24 01:32:24
● 2016-04-25 01:13:28
○ 2017-01-25 22:12:26
○ 2026-05-09 04:19:08

○MXsmtp.secureserver.net2016-04-25 → 2016-04-25 · 4 obs

○ 2016-01-24 01:32:24
● 2016-04-25 01:13:28
○ 2017-01-25 22:12:26
○ 2026-05-09 04:19:08

●A210.245.8.1342026-03-15 → 2026-05-09 · 3 obs

○ 2017-01-25 22:12:26
● 2026-03-15 06:10:10
● 2026-05-09 04:19:08

○A50.63.202.602016-04-25 → 2016-04-25 · 4 obs

○ 2016-01-24 01:32:24
● 2016-04-25 01:13:28
○ 2017-01-25 22:12:26
○ 2026-05-09 04:19:08

○A70.39.84.2262015-10-26 → 2015-10-26 · 4 obs

○ 2015-06-02 22:46:24
● 2015-10-26 22:02:08
○ 2016-01-24 01:32:24
○ 2026-05-09 04:19:08

○A70.39.84.2282015-06-02 → 2015-06-02 · 3 obs

● 2015-06-02 22:46:24
○ 2026-03-15 06:10:10
○ 2026-05-09 04:19:08

○A70.39.84.2292016-01-24 → 2016-01-24 · 4 obs

○ 2015-10-26 22:02:08
● 2016-01-24 01:32:24
○ 2016-04-25 01:13:28
○ 2026-05-09 04:19:08

○CNAMEd.dcoin.co2015-06-02 → 2016-01-24 · 4 obs

● 2015-06-02 22:46:24
● 2016-01-24 01:32:24
○ 2016-04-25 01:13:28
○ 2026-05-09 04:19:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
drcong.com	ns1.sapo.vn, ns2.sapo.vn	-

✅ Authoritative Response

Server:222.255.121.247

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for drcong.com (unsigned zone)

⏱️ Timing

Total: 1198ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.245.8.134`
NS	2	`ns1.dotvndns.vn, ns2.dotvndns.vn`
MX	1	`mail.drcong.com (pri: 10)`
TXT	1	`v=spf1 a mx ~all`
SOA	1	`ns1.dotvndns.vn hostmaster.drcong.com`

Analysis

Hierarchy

drcong.com is a parent of mail.drcong.com and www.drcong.com.

IP Addresses

drcong.com points to IP number: 210.245.8.134.

Other host names such as baltijos.at.longvu.net, inoxanhviet.com, hocnuoiongdu.com, e-telegram.longvu.net and mail.onaplioa.net share IPs with drcong.com.

Name Servers

drcong.com is delegated to four name servers: ns1.dotvndns.vn, ns2.dotvndns.vn, ns1.sapo.vn and ns2.sapo.vn.

drcong.com at least partially shares name servers with other domains, for instance hglcons.vn, namamotor.com, singa.com.vn, smpfvn.com and ptcvn.com.