`cure-dc.jp`

DNSSEC	⚠️ Not signed
A	219.94.155.237^{🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
		PTR	`www447b.sakura.ne.jp`
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	`smtp.google.com` ⭐
		A	2607:f8b0:4004:c17::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f26.1e100.net`
		A	2607:f8b0:4004:c17::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bl-in-f27.1e100.net`
		A	2607:f8b0:4004:c19::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bk-in-f27.1e100.net`
		A	2607:f8b0:4004:c1b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f26.1e100.net`
		A	142.251.16.26^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f26.1e100.net`
		A	142.251.16.27^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f27.1e100.net`
		A	142.251.111.27^{🇺🇸 Google142.251.111.0/24}
			PTR	`bk-in-f27.1e100.net`
		A	142.251.163.26^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f26.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
TXT	`v=spf1 a:www447b.sakura.ne.jp mx ~all`
TXT	`google-site-verification=7StlZ5FOooJa3WxIQX70T0ZR3YXP34Pw6BCwv6GeCS0`
TXT	`v=spf1 include:_spf.google.com ~all`
TXT	`v=DMARC1; p=reject; rua=mailto:postmaster@example.com, mailto:dmarc@example.c...`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2025-04-06 #9

`jp`

	DNSSEC	🔒 Signed (DS record present)
	NS	`z.dns.jp` ⭐
	NS	`a.dns.jp`
	NS	`b.dns.jp`
	NS	`c.dns.jp`
	NS	`d.dns.jp`
	NS	`e.dns.jp`
	NS	`f.dns.jp`
	NS	`g.dns.jp`
	NS	`h.dns.jp`
	SOA	`z.dns.jp`root@dns.jp serial=1774797303

Previously MX for

cure-dc.jp

Same first word

cure-dc.jp

DNS History

11 records (5 active, 6 former)

●NSmaster.dns.ne.jp2016-04-12 → 2026-03-29 · 3 obs

○ 2016-01-26 04:00:10
● 2016-04-12 06:53:44
● 2026-03-29 15:45:12

○NSns.gehirn.co.uk2015-08-16 → 2016-01-26 · 4 obs

● 2015-08-16 10:41:28
● 2016-01-26 04:00:10
○ 2016-04-12 06:53:44
○ 2026-03-29 15:45:12

○NSns.gehirn.jp2015-08-16 → 2016-01-26 · 4 obs

● 2015-08-16 10:41:28
● 2016-01-26 04:00:10
○ 2016-04-12 06:53:44
○ 2026-03-29 15:45:12

○NSns.gehirndns.com2015-08-16 → 2016-01-26 · 4 obs

● 2015-08-16 10:41:28
● 2016-01-26 04:00:10
○ 2016-04-12 06:53:44
○ 2026-03-29 15:45:12

○NSns.securedns.jp2015-08-16 → 2016-01-26 · 4 obs

● 2015-08-16 10:41:28
● 2016-01-26 04:00:10
○ 2016-04-12 06:53:44
○ 2026-03-29 15:45:12

●NSns1.dns.ne.jp2016-04-12 → 2026-03-29 · 3 obs

○ 2016-01-26 04:00:10
● 2016-04-12 06:53:44
● 2026-03-29 15:45:12

●NSns2.dns.ne.jp2016-04-12 → 2026-03-29 · 3 obs

○ 2016-01-26 04:00:10
● 2016-04-12 06:53:44
● 2026-03-29 15:45:12

○MXcure-dc.jp2016-04-12 → 2017-12-29 · 4 obs

● 2016-04-12 06:53:44
● 2017-12-29 14:36:54
○ 2026-02-23 04:51:58
○ 2026-03-29 15:45:12

●MXsmtp.google.com2026-02-23 → 2026-03-29 · 3 obs

○ 2017-12-29 14:36:54
● 2026-02-23 04:51:58
● 2026-03-29 15:45:12

○A133.242.2.1042015-08-16 → 2016-01-26 · 4 obs

● 2015-08-16 10:41:28
● 2016-01-26 04:00:10
○ 2016-04-12 06:53:44
○ 2026-03-29 15:45:12

●A219.94.155.2372016-04-12 → 2026-03-29 · 3 obs

○ 2016-01-26 04:00:10
● 2016-04-12 06:53:44
● 2026-03-29 15:45:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...	-
cure-dc.jp	ns2.dns.ne.jp, ns1.dns.ne.jp	2 records

✅ Authoritative Response

Server:61.211.236.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cure-dc.jp (unsigned zone)

⏱️ Timing

Total: 869ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`219.94.155.237`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`smtp.google.com (pri: 1)`
TXT	4	`v=spf1 a:www447b.sakura.ne.jp mx ~all, google-site-verification=7StlZ5FOooJa3Wx...`
SOA	1	`master.dns.ne.jp tech.sakura.ad.jp`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.dns.ne.jp, ns1.dns.ne.jp)

Analysis

IP Addresses

cure-dc.jp points to a single IP address: 219.94.155.237.

Other host names such as apple.halhal.net, mutenkasengen.jp, every-es.jp, okura-jibika.com and compasspoint.asia share IPs with cure-dc.jp.

Name Servers

cure-dc.jp is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

cure-dc.jp at least partially shares name servers with other domains, for example adcee-mail.sakura.ne.jp, takano-shuzo.co.jp, eandestyling.com, hiyori.net and mori-juken.jp.

these name servers are commonly used alongside dns.sakura.ad.jp name servers.

Host names with a single IP address:

master.dns.ne.jp resolves to 210.224.172.18.

ns1.dns.ne.jp resolves to 61.211.236.1.

ns2.dns.ne.jp resolves to 133.167.21.1.

Mail Servers

The smtp.google.com mail server handles cure-dc.jp.

cure-dc.jp shares the same mail server setup as other domains, including algofy.ai, hitproperties.org, masbenx.net, 999yes.com and unpatti.ac.id.

cure-dc.jp shares at least partially some mail servers with other domains, for instance aisha-moroccotours.com, b11.no, aarize.com, 3plusgames.com and endeneme.net.

these mail servers are often used together with aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.

The host name smtp.google.com maps to nine IP numbers: 2607:f8b0:4004:c17::1a, 2607:f8b0:4004:c17::1b, 2607:f8b0:4004:c19::1b, 2607:f8b0:4004:c1b::1a, 142.251.16.26, 142.251.16.27, 142.251.111.27, 142.251.163.26 and 142.251.163.27.

cure-dc.jp - robtex.com

cure-dc.jp

jp

Previously MX for

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`cure-dc.jp`

`jp`