`networkdyna.co.jp`

DNSSEC	⚠️ Not signed
A	219.94.128.88^{🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
		PTR	`www878.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	`networkdyna.co.jp` ⭐
		A	219.94.128.88^{🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`www878.sakura.ne.jp`
TXT	`v=spf1 a:www878.sakura.ne.jp mx ~all`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2020-09-02 #1

`co.jp`

	DNSSEC	⚠️ Not signed
	TXT	`co.jp.`

WOT: SAFE (58/100)

MX for

networkdyna.co.jp

Same first word

networkdyna.co.jp

Similar names

dynanetwork.com

DNS History

5 records (5 active, 0 former)

●NSmaster.dns.ne.jp2019-12-13 → 2026-03-28 · 2 obs

● 2019-12-13 15:02:50
● 2026-03-28 23:19:08

●NSns1.dns.ne.jp2019-12-13 → 2026-03-28 · 2 obs

● 2019-12-13 15:02:50
● 2026-03-28 23:19:08

●NSns2.dns.ne.jp2019-12-13 → 2026-03-28 · 2 obs

● 2019-12-13 15:02:50
● 2026-03-28 23:19:08

●MXnetworkdyna.co.jp2019-12-13 → 2026-03-28 · 2 obs

● 2019-12-13 15:02:50
● 2026-03-28 23:19:08

●A219.94.128.882019-12-13 → 2026-03-28 · 2 obs

● 2019-12-13 15:02:50
● 2026-03-28 23:19:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
networkdyna.co.jp	ns2.dns.ne.jp, ns1.dns.ne.jp	2 records

✅ Authoritative Response

Server:133.167.21.1

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for networkdyna.co.jp (unsigned zone)

⏱️ Timing

Total: 994ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`219.94.128.88`
NS	2	`ns1.dns.ne.jp, ns2.dns.ne.jp`
MX	1	`networkdyna.co.jp (pri: 10)`
TXT	1	`v=spf1 a:www878.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

The mail server for networkdyna.co.jp is networkdyna.co.jp.

IP Addresses

networkdyna.co.jp points to a single IP address: 219.94.128.88.

Other host names such as gyokuto-syakyo.sakura.ne.jp, star-dc.com, tech-tg.com, hosoi-tax.com and net-kaden.com share IPs with networkdyna.co.jp.

Name Servers

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

networkdyna.co.jp at least partially shares name servers with other domains, for example wan.bz, mynagai.com, f-chemical.co.jp, mm-lifespace.com and moonlit.jp.

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

One mail server handles networkdyna.co.jp; that server is networkdyna.co.jp.

networkdyna.co.jp points to a single IP number: 219.94.128.88.

networkdyna.co.jp - robtex.com