`ryouikutecho.com`

DNSSEC	⚠️ Not signed
A	2403:3a00:201:1a:49:212:180:53^{🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
		PTR	`www2643.sakura.ne.jp`
A	49.212.180.53^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
NS	`master.dns.ne.jp` ⭐
		A	210.224.172.18^{🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`master.dns.ne.jp`
NS	`ns1.dns.ne.jp`
		A	61.211.236.1^{🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`ns1.dns.ne.jp`
NS	`ns2.dns.ne.jp`
		A	133.167.21.1^{🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan}
			PTR	`ns2.dns.ne.jp`
MX	`ryouikutecho.com` ⭐
		A	2403:3a00:201:1a:49:212:180:53^{🇯🇵 SAKURA-C2403:3a00::/32 SAKURA Internet // OSAKA BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan}
			PTR	`www2643.sakura.ne.jp`
		A	49.212.180.53^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`www2643.sakura.ne.jp`
TXT	`google-site-verification=cCrMsKQVgPyrGCz016OKq7im6tJhm8jVPcvEUAryLLI`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2019-05-03 #0

`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=1786318574

MX for

ryouikutecho.com

Same first word

ryouikutecho.com

DNS History

6 records (6 active, 0 former)

●NSmaster.dns.ne.jp2016-12-13 → 2026-08-09 · 2 obs

● 2016-12-13 08:29:02
● 2026-08-09 23:42:04

●NSns1.dns.ne.jp2016-12-13 → 2026-08-09 · 2 obs

● 2016-12-13 08:29:02
● 2026-08-09 23:42:04

●NSns2.dns.ne.jp2016-12-13 → 2026-08-09 · 2 obs

● 2016-12-13 08:29:02
● 2026-08-09 23:42:04

●MXryouikutecho.com2016-12-13 → 2026-08-09 · 2 obs

● 2016-12-13 08:29:02
● 2026-08-09 23:42:04

●A2403:3a00:201:1a:49:212:180:532016-12-13 → 2026-08-09 · 2 obs

● 2016-12-13 08:29:02
● 2026-08-09 23:42:04

●A49.212.180.532016-12-13 → 2026-08-09 · 2 obs

● 2016-12-13 08:29:02
● 2026-08-09 23:42:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, a.gtld-servers.net, d.gtld-servers.net, c.gtld-servers.net...	-
ryouikutecho.com	ns1.dns.ne.jp, ns2.dns.ne.jp	-

✅ Authoritative Response

Server:133.167.21.1

NS records: ns1.dns.ne.jp, ns2.dns.ne.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ryouikutecho.com (unsigned zone)

⏱️ Timing

Total: 1261ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`49.212.180.53`
AAAA	1	`2403:3a00:201:1a:49:212:180:53`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`ryouikutecho.com (pri: 10)`
TXT	1	`google-site-verification=cCrMsKQVgPyrGCz`
SOA	1	`master.dns.ne.jp tech.sakura.ad.jp`

Analysis

Mail Server Role

ryouikutecho.com is listed as a mail server for itself.

IP Addresses

ryouikutecho.com resolves to the IP addresses 49.212.180.53 and 2403:3a00:201:1a:49:212:180:53

www.shutoko-hoken.jp, hinodex.co.jp, holys.jp and two other host names share IP numbers with ryouikutecho.com.

Name Servers

ryouikutecho.com is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

ryouikutecho.com has at least partial name server overlap with other domains, such as mxxivit.com, sanoyaku.sakura.ne.jp, niwacon.com and two others.

It is common to find these name servers paired with the name servers dns.sakura.ad.jp.

master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp each resolve to a single IP address: master.dns.ne.jp resolves to 210.224.172.18, ns1.dns.ne.jp resolves to 61.211.236.1 and ns2.dns.ne.jp resolves to 133.167.21.1.

Mail Servers

Mail for ryouikutecho.com is handled by one mail server — ryouikutecho.com.

ryouikutecho.com has two IP addresses: 49.212.180.53 and 2403:3a00:201:1a:49:212:180:53.

ryouikutecho.com - robtex.com