`studygoodenglish.com`

DNSSEC	⚠️ Not signed
A	14.225.36.117^{🇻🇳 VNPT-AS-VN14.225.36.0/24 VNPT}
NS	`ns4.bizflycloud.vn` ⭐
		A	42.112.37.60^{🇻🇳 FPT-AS-AP42.112.32.0/20 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	`ns5.bizflycloud.vn`
		A	210.211.126.74^{🇻🇳 VTDC-AS-VN210.211.124.0/22 Proxy-registered route object}
NS	`ns6.bizflycloud.vn`
		A	123.31.11.17^{🇻🇳 VNPT-AS-VN123.31.11.0/24 VNPT}
			PTR	`static.vnpt.vn`
MX	`smtp.google.com` ⭐
		A	2607:f8b0:4023:c06::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dz-in-f26.1e100.net`
		A	2607:f8b0:4023:c06::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dz-in-f27.1e100.net`
		A	2607:f8b0:4023:c0b::1a^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dd-in-f26.1e100.net`
		A	2607:f8b0:4023:c0b::1b^{🇺🇸 Google2607:f8b0::/32}
			PTR	`dd-in-f27.1e100.net`
		A	142.250.101.26^{🇺🇸 Google142.250.101.0/24}
			PTR	`dz-in-f26.1e100.net`
		A	142.250.101.27^{🇺🇸 Google142.250.101.0/24}
			PTR	`dz-in-f27.1e100.net`
		A	142.250.141.26^{🇺🇸 Google142.250.141.0/24}
			PTR	`dd-in-f26.1e100.net`
		A	142.250.141.27^{🇺🇸 Google142.250.141.0/24}
			PTR	`dd-in-f27.1e100.net`
		A	142.251.2.26^{🇺🇸 Google142.251.2.0/24}
			PTR	`dl-in-f26.1e100.net`
SOA	`ns4.bizflycloud.vn`dns@vccloud@vn serial=1717784550

`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=1771291435

Same first word

studygoodenglish.com

DNS History

23 records (5 active, 18 former)

○NScharles.ns.cloudflare.com2020-04-04 → 2020-04-04 · 3 obs

○ 2017-03-18 15:19:12
● 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

○NSirma.ns.cloudflare.com2020-04-04 → 2020-04-04 · 3 obs

○ 2017-03-18 15:19:12
● 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

○NSns1.studygoodenglish.com2016-03-03 → 2017-03-18 · 5 obs

○ 2015-11-13 06:38:34
● 2016-03-03 05:56:44
● 2017-03-18 15:19:12
○ 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

○NSns2.studygoodenglish.com2016-03-03 → 2017-03-18 · 5 obs

○ 2015-11-13 06:38:34
● 2016-03-03 05:56:44
● 2017-03-18 15:19:12
○ 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

●NSns4.bizflycloud.vn2026-03-23 → 2026-03-23 · 2 obs

○ 2020-04-04 11:46:48
● 2026-03-23 05:55:42

●NSns5.bizflycloud.vn2026-03-23 → 2026-03-23 · 2 obs

○ 2020-04-04 11:46:48
● 2026-03-23 05:55:42

●NSns6.bizflycloud.vn2026-03-23 → 2026-03-23 · 2 obs

○ 2020-04-04 11:46:48
● 2026-03-23 05:55:42

○NSns8179.hostgator.com2015-07-04 → 2015-11-13 · 4 obs

● 2015-07-04 11:58:36
● 2015-11-13 06:38:34
○ 2016-03-03 05:56:44
○ 2026-03-23 05:55:42

○NSns8180.hostgator.com2015-07-04 → 2015-11-13 · 4 obs

● 2015-07-04 11:58:36
● 2015-11-13 06:38:34
○ 2016-03-03 05:56:44
○ 2026-03-23 05:55:42

○MXalt1.aspmx.l.google.com2020-04-04 → 2020-04-04 · 3 obs

○ 2017-03-18 15:19:12
● 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

○MXalt2.aspmx.l.google.com2020-04-04 → 2020-04-04 · 3 obs

○ 2017-03-18 15:19:12
● 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

○MXalt3.aspmx.l.google.com2020-04-04 → 2020-04-04 · 3 obs

○ 2017-03-18 15:19:12
● 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

○MXalt4.aspmx.l.google.com2020-04-04 → 2020-04-04 · 3 obs

○ 2017-03-18 15:19:12
● 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

○MXaspmx.l.google.com2020-04-04 → 2020-04-04 · 3 obs

○ 2017-03-18 15:19:12
● 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

●MXsmtp.google.com2026-03-23 → 2026-03-23 · 2 obs

○ 2020-04-04 11:46:48
● 2026-03-23 05:55:42

○MXstudygoodenglish.com2015-07-04 → 2017-03-18 · 4 obs

● 2015-07-04 11:58:36
● 2017-03-18 15:19:12
○ 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

○A104.27.150.2112020-04-04 → 2020-04-04 · 3 obs

○ 2017-03-18 15:19:12
● 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

○A104.27.151.2112020-04-04 → 2020-04-04 · 3 obs

○ 2017-03-18 15:19:12
● 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

●A14.225.36.1172026-03-23 → 2026-03-23 · 2 obs

○ 2020-04-04 11:46:48
● 2026-03-23 05:55:42

○A162.144.219.562016-03-03 → 2017-03-18 · 5 obs

○ 2015-11-13 06:38:34
● 2016-03-03 05:56:44
● 2017-03-18 15:19:12
○ 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

○A192.185.35.922015-07-04 → 2015-11-13 · 4 obs

● 2015-07-04 11:58:36
● 2015-11-13 06:38:34
○ 2016-03-03 05:56:44
○ 2026-03-23 05:55:42

○A2606:4700:3030::681b:97d32020-04-04 → 2020-04-04 · 3 obs

○ 2017-03-18 15:19:12
● 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

○A2606:4700:3037::681b:96d32020-04-04 → 2020-04-04 · 3 obs

○ 2017-03-18 15:19:12
● 2020-04-04 11:46:48
○ 2026-03-23 05:55:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
studygoodenglish.com	ns4.bizflycloud.vn, ns5.bizflycloud.vn, ns6.bizflycloud.vn	-

✅ Authoritative Response

Server:123.31.11.17

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studygoodenglish.com (unsigned zone)

⏱️ Timing

Total: 4868ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`14.225.36.117`
NS	3	`ns4.bizflycloud.vn, ns5.bizflycloud.vn...`
MX	1	`smtp.google.com (pri: 1)`
SOA	1	`ns4.bizflycloud.vn dns@vccloud.vn`

Analysis

IP Addresses

studygoodenglish.com resolves to one IP number: 14.225.36.117.

Name Servers

studygoodenglish.com is delegated to three name servers: ns4.bizflycloud.vn, ns5.bizflycloud.vn and ns6.bizflycloud.vn.

studygoodenglish.com at least partially shares name servers with other domains, including mindx.vn, mindx.edu.vn, cdn.bfcplatform.vn, vbis.vn and daugiabtn.com.

These name servers are commonly used with ns1.viettelidc.com.vn, ns2.viettelidc.com.vn and ns.viettelidc.com.vn.

Host names with a single IP:

ns4.bizflycloud.vn points to 42.112.37.60; ns5.bizflycloud.vn points to 210.211.126.74; ns6.bizflycloud.vn points to 123.31.11.17.

Mail Servers

A single mail server handles studygoodenglish.com, smtp.google.com.

studygoodenglish.com shares the same mail server setup as other domains, for instance macbee-planet.com, phyder.com, bazzarus.com, mail1.deprog.jp and aitonpartnerslive.info.

studygoodenglish.com shares at least some mail servers with other domains, for example geedupclothing.com, merlin.org.ua, sosiapistoia.it, leedex.eu and aggiemoms.org.

These mail servers are commonly used with 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.

Hostname smtp.google.com points to nine IP numbers: 2607:f8b0:4023:c06::1a, 2607:f8b0:4023:c06::1b, 2607:f8b0:4023:c0b::1a, 2607:f8b0:4023:c0b::1b, 142.250.101.26, 142.250.101.27, 142.250.141.26, 142.250.141.27 and 142.251.2.26.

studygoodenglish.com - robtex.com