`alfa9.jp`

DNSSEC	⚠️ Not signed
A	153.126.216.194^{🇯🇵 SAKURA-A153.126.128.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
		PTR	`alfa9.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	`alfa9.jp` ⭐
		A	153.126.216.194^{🇯🇵 SAKURA-A153.126.128.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
			PTR	`alfa9.jp`
TXT	`v=spf1 a:www2769.sakura.ne.jp mx ~all`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2025-08-31 #1

`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=1774891802

PTR for

194.216.126.153.in-addr.arpa

MX for

alfa9.jp

Same first word

alfa9.pl

alfa9.pp.ua

alfa9.jp

alfa9.com

DNS History

9 records (5 active, 4 former)

●NSmaster.dns.ne.jp2015-05-19 → 2026-03-30 · 5 obs

● 2015-05-19 00:04:24
○ 2015-10-16 17:54:18
○ 2020-03-12 20:44:16
● 2026-03-30 09:59:30
● 2026-03-30 18:05:18

●NSns1.dns.ne.jp2015-05-19 → 2026-03-30 · 6 obs

● 2015-05-19 00:04:24
● 2016-04-18 23:35:56
○ 2016-08-01 17:24:58
○ 2020-03-12 20:44:16
● 2026-03-30 09:59:30
● 2026-03-30 18:05:18

○NSns1.value-domain.com2016-08-01 → 2020-03-12 · 5 obs

○ 2016-04-18 23:35:56
● 2016-08-01 17:24:58
● 2020-03-12 20:44:16
○ 2026-03-30 09:59:30
○ 2026-03-30 18:05:18

●NSns2.dns.ne.jp2015-05-19 → 2026-03-30 · 6 obs

● 2015-05-19 00:04:24
● 2016-04-18 23:35:56
○ 2016-08-01 17:24:58
○ 2020-03-12 20:44:16
● 2026-03-30 09:59:30
● 2026-03-30 18:05:18

○NSns2.value-domain.com2016-08-01 → 2020-03-12 · 5 obs

○ 2016-04-18 23:35:56
● 2016-08-01 17:24:58
● 2020-03-12 20:44:16
○ 2026-03-30 09:59:30
○ 2026-03-30 18:05:18

●MXalfa9.jp2026-03-30 → 2026-03-30 · 3 obs

○ 2020-03-12 20:44:16
● 2026-03-30 09:59:30
● 2026-03-30 18:05:18

○MXmx1.alfa9.jp2015-05-19 → 2020-03-12 · 4 obs

● 2015-05-19 00:04:24
● 2020-03-12 20:44:16
○ 2026-03-30 09:59:30
○ 2026-03-30 18:05:18

●A153.126.216.1942026-03-30 → 2026-03-30 · 3 obs

○ 2020-03-12 20:44:16
● 2026-03-30 09:59:30
● 2026-03-30 18:05:18

○A219.94.253.552015-05-19 → 2020-03-12 · 4 obs

● 2015-05-19 00:04:24
● 2020-03-12 20:44:16
○ 2026-03-30 09:59:30
○ 2026-03-30 18:05:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...	-
alfa9.jp	ns1.dns.ne.jp, ns2.dns.ne.jp	2 records

✅ Authoritative Response

Server:61.211.236.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for alfa9.jp (unsigned zone)

⏱️ Timing

Total: 847ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`153.126.216.194`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`alfa9.jp (pri: 10)`
TXT	1	`v=spf1 a:www2769.sakura.ne.jp mx ~all`
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

Mail Server Role

For alfa9.jp, the mail server is alfa9.jp.

IP Addresses

alfa9.jp resolves to one IP number: 153.126.216.194.

Name Servers

alfa9.jp is delegated to three name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

alfa9.jp at least partially shares name servers with other domains, for instance syo-office.com, v-retrieve.com, pinotnet.com, riwen.net and sakasamaworks.com.

Host names with one IP number: master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1.

Mail Servers

alfa9.jp is served by a single mail server, alfa9.jp.

alfa9.jp resolves to IP 153.126.216.194.

alfa9.jp - robtex.com

alfa9.jp

jp