`secure05.willnet.org`

DNSSEC	⚠️ Not signed
A	163.43.91.68^{🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
		PTR	`secure05.willnet.org`
TXT	`v=spf1 a mx include:spf01.willnet.ad.jp ~all`

`willnet.org`

	DNSSEC	⚠️ Not signed
	A	163.43.91.53^{🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan}
	NS	`ns1.willnet.ne.jp` ⭐
	NS	`ns2.willnet.ne.jp`
	MX	`mail.willnet.org` ⭐
	TXT	`v=spf1 a mx include:spf01.willnet.ad.jp ~all`
	SOA	`ns1.willnet.ne.jp`hostmaster@willnet.ne.jp 2026-02-26 #0

PTR for

68.91.43.163.in-addr.arpa

MX for

twelve012.co.jp

DNS History

2 records (1 active, 1 former)

○A110.34.58.62015-07-10 → 2016-09-24 · 4 obs

● 2015-07-10 17:16:24
● 2016-09-24 16:05:02
○ 2026-04-04 11:02:28
○ 2026-04-11 21:23:10

●A163.43.91.682026-04-04 → 2026-04-11 · 3 obs

○ 2016-09-24 16:05:02
● 2026-04-04 11:02:28
● 2026-04-11 21:23:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org	-
willnet.org	ns1.willnet.ne.jp, ns2.willnet.ne.jp	-

✅ Authoritative Response

Server:133.18.128.93

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for willnet.org (unsigned zone)

⏱️ Timing

Total: 988ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`163.43.91.68`
TXT	1	`v=spf1 a mx include:spf01.willnet.ad.jp`

Analysis

Mail Server Role

secure05.willnet.org serves as the mail server for twelve012.co.jp.

IP Addresses

secure05.willnet.org resolves to a single IP: 163.43.91.68.

Other host names, for instance okazaki-collection.com, mx.e-chonai.com, rokugendo.com, mx.fas-web.com and mx.marinejet.co.jp share IP numbers with secure05.willnet.org.

secure05.willnet.org - robtex.com

secure05.willnet.org

willnet.org