`study-coaching.com`

DNSSEC	⚠️ Not signed
NS	`ns-1821.awsdns-35.co.uk` ⭐
		A	2600:9000:5307:1d00::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1821.awsdns-35.co.uk`
		A	205.251.199.29^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1821.awsdns-35.co.uk`
NS	`ns-1120.awsdns-12.org`
		A	2600:9000:5304:6000::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1120.awsdns-12.org`
		A	205.251.196.96^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1120.awsdns-12.org`
NS	`ns-152.awsdns-19.com`
		A	2600:9000:5300:9800::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-152.awsdns-19.com`
		A	205.251.192.152^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-152.awsdns-19.com`
NS	`ns-594.awsdns-10.net`
		A	2600:9000:5302:5200::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-594.awsdns-10.net`
		A	205.251.194.82^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-594.awsdns-10.net`
MX	`cab0.mx.cloud-mail.jp` ⭐
		A	59.157.130.3^{🇯🇵 FBDC59.157.128.0/18 FreeBit CIDR X-Keiro:nic-noc@FreeBit.NET}
			PTR	`mail0.cloud-mail.jp`
MX	`cab0.mx2.cloud-mail.jp`⁽²⁰⁰⁾
		A	202.210.185.137^{🇯🇵 BEKKOAME202.210.128.0/18 INTERNET INC.}
TXT	`v=spf1 +a:cab0.spf.cloud-mail.jp +ip4:54.249.106.12/32 +ip4:54.249.83.183/32 ...`
SOA	`ns-1821.awsdns-35.co.uk`awsdns-hostmaster@amazon.com serial=1

`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

Previously MX for

www.study-coaching.com

Subdomains

www.study-coaching.com

DNS History

11 records (6 active, 5 former)

○NSmaster.dns.ne.jp2015-08-23 → 2016-09-16 · 4 obs

● 2015-08-23 16:00:56
● 2016-09-16 21:14:40
○ 2026-03-21 07:50:26
○ 2026-03-21 07:50:30

●NSns-1120.awsdns-12.org2026-03-21 → 2026-03-21 · 3 obs

○ 2016-09-16 21:14:40
● 2026-03-21 07:50:26
● 2026-03-21 07:50:30

●NSns-152.awsdns-19.com2026-03-21 → 2026-03-21 · 3 obs

○ 2016-09-16 21:14:40
● 2026-03-21 07:50:26
● 2026-03-21 07:50:30

●NSns-1821.awsdns-35.co.uk2026-03-21 → 2026-03-21 · 3 obs

○ 2016-09-16 21:14:40
● 2026-03-21 07:50:26
● 2026-03-21 07:50:30

●NSns-594.awsdns-10.net2026-03-21 → 2026-03-21 · 3 obs

○ 2016-09-16 21:14:40
● 2026-03-21 07:50:26
● 2026-03-21 07:50:30

○NSns1.dns.ne.jp2015-08-23 → 2016-09-16 · 4 obs

● 2015-08-23 16:00:56
● 2016-09-16 21:14:40
○ 2026-03-21 07:50:26
○ 2026-03-21 07:50:30

○NSns2.dns.ne.jp2015-08-23 → 2016-09-16 · 4 obs

● 2015-08-23 16:00:56
● 2016-09-16 21:14:40
○ 2026-03-21 07:50:26
○ 2026-03-21 07:50:30

●MXcab0.mx.cloud-mail.jp2026-03-21 → 2026-03-21 · 3 obs

○ 2016-09-16 21:14:40
● 2026-03-21 07:50:26
● 2026-03-21 07:50:30

●MXcab0.mx2.cloud-mail.jp2026-03-21 → 2026-03-21 · 3 obs

○ 2016-09-16 21:14:40
● 2026-03-21 07:50:26
● 2026-03-21 07:50:30

○MXstudy-coaching.com2015-08-23 → 2016-09-16 · 4 obs

● 2015-08-23 16:00:56
● 2016-09-16 21:14:40
○ 2026-03-21 07:50:26
○ 2026-03-21 07:50:30

○A49.212.180.2212015-08-23 → 2016-09-16 · 4 obs

● 2015-08-23 16:00:56
● 2016-09-16 21:14:40
○ 2026-03-21 07:50:26
○ 2026-03-21 07:50:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
study-coaching.com	ns-152.awsdns-19.com, ns-594.awsdns-10.net, ns-1120.awsdns-12.org, ns-1821.awsdns-35.co.uk	1 record

✅ Authoritative Response

Server: 205.251.196.96

NS records: ns-152.awsdns-19.com, ns-594.awsdns-10.net, ns-1120.awsdns-12.org, ns-1821.awsdns-35.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for study-coaching.com (unsigned zone)

⏱️ Timing

Total: 1061ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns-1120.awsdns-12.org, ns-152.awsdns-19.com...`
MX	2	`cab0.mx.cloud-mail.jp (pri: 100), cab0.mx2.cloud-mail.jp (pri: 200)`
TXT	1	`v=spf1 +a:cab0.spf.cloud-mail.jp +ip4:54`
SOA	1	`ns-1821.awsdns-35.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-152.awsdns-19.com)

Analysis

Hierarchy

The parent of www.study-coaching.com is study-coaching.com.

Name Servers

study-coaching.com is delegated to four name servers: ns-152.awsdns-19.com, ns-594.awsdns-10.net, ns-1120.awsdns-12.org and ns-1821.awsdns-35.co.uk.

study-coaching.com at least partially shares name servers with other domains, for instance 123.243.34.in-addr.arpa, 16.208.52.in-addr.arpa, quantilab.mu, cartoonnetwork.se and diligencengine.org.

these name servers are commonly used with ns1-24-eu-west-1.ec2-rdns.amazonaws.com, ns2-24-eu-west-1.ec2-rdns.amazonaws.com, ns3-24-eu-west-1.ec2-rdns.amazonaws.com, ns4-24-eu-west-1.ec2-rdns.amazonaws.com, ns-890.awsdns-47.net, ns-1281.awsdns-32.org and ns-1768.awsdns-29.co.uk.

Host names with two IP numbers: ns-152.awsdns-19.com points to 2600:9000:5300:9800::1 and 205.251.192.152; ns-594.awsdns-10.net points to 2600:9000:5302:5200::1 and 205.251.194.82; ns-1120.awsdns-12.org points to 2600:9000:5304:6000::1 and 205.251.196.96; ns-1821.awsdns-35.co.uk points to 2600:9000:5307:1d00::1 and 205.251.199.29.

Mail Servers

study-coaching.com is handled by two mail servers: cab0.mx.cloud-mail.jp and cab0.mx2.cloud-mail.jp.

The mail server setup for study-coaching.com matches that of other domains, for instance hello-asc.com, shimizu-zeirishi.jp, takara-ki.co.jp, 11ireba.com and vogaweb.jp.

study-coaching.com shares at least partially some mail servers with other domains, including yabuyabu.com, ccc-osaka.com, uchida-shikaiin.com, kosi.co.jp and aisalo-hp.com.

Host names with a single IP:

cab0.mx.cloud-mail.jp points to 59.157.130.3.

cab0.mx2.cloud-mail.jp points to 202.210.185.137.

study-coaching.com - robtex.com