`mail.fieldbrain.com`

CNAME	`fieldbrain.com`
DNSSEC	⚠️ Not signed
A	49.212.198.79^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
		PTR	`www2869.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	`fieldbrain.com` ⭐
		A	49.212.198.79^{🇯🇵 SAKURA-C49.212.0.0/16 (7/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`www2869.sakura.ne.jp`
TXT	`v=spf1 a:www2869.sakura.ne.jp mx ~all`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2016-10-31 #13

`fieldbrain.com`

	DNSSEC	⚠️ Not signed
	A	49.212.198.79^{🇯🇵 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` ⭐
	NS	`ns1.dns.ne.jp`
	NS	`ns2.dns.ne.jp`
	MX	`fieldbrain.com` ⭐
	TXT	`v=spf1 a:www2869.sakura.ne.jp mx ~all`
	SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2016-10-31 #13

Previously MX for

fieldbrain.com

Same first word

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DNS History

1 record (1 active, 0 former)

●CNAMEfieldbrain.com2026-04-14 → 2026-04-16 · 2 obs

● 2026-04-14 11:34:02
● 2026-04-16 04:30:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net...	-
fieldbrain.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 fieldbrain.com (unsigned zone)

⏱️ Timing

Total: 1042ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`fieldbrain.com`

Analysis

IP Addresses

mail.fieldbrain.com points to IP number: 49.212.198.79.

Other host names such as cozuee.sakura.ne.jp, leaf-line.jp, artspot.jp, habutae.com and megmcpa.com share IPs with mail.fieldbrain.com.

Name Servers

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

mail.fieldbrain.com at least partially shares name servers with other domains, for instance gallardagalante.com, 238.16.160.in-addr.arpa, posshi.com, sagawa-jyuuken.com and oasis-estate.jp.

these name servers are often used in conjunction with the name servers dns.sakura.ad.jp.

Host names with a single IP:

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

mail.fieldbrain.com is handled by a single mail server, fieldbrain.com.

The mail server setup for mail.fieldbrain.com mirrors that of other domains, for instance fieldbrain.com.

fieldbrain.com points to a single IP: 49.212.198.79.

mail.fieldbrain.com - robtex.com