`mail.o-collabo.com`

CNAME	`o-collabo.com`
DNSSEC	⚠️ Not signed
A	219.94.128.45^{🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
		PTR	`www835.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	`o-collabo.com` ⭐
		A	219.94.128.45^{🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan}
			PTR	`www835.sakura.ne.jp`
TXT	`v=spf1 a:www835.sakura.ne.jp mx ~all`
SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2025-11-18 #1

`o-collabo.com`

	DNSSEC	⚠️ Not signed
	A	219.94.128.45^{🇯🇵 SAKURA-C219.94.128.0/17 (3/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	`o-collabo.com` ⭐
	TXT	`v=spf1 a:www835.sakura.ne.jp mx ~all`
	SOA	`master.dns.ne.jp`tech@sakura.ad.jp 2025-11-18 #1

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DNS History

1 record (1 active, 0 former)

●CNAMEo-collabo.com2026-05-10 → 2026-05-10 · 2 obs

● 2026-05-10 23:12:18
● 2026-05-10 23:12:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
o-collabo.com	ns1.dns.ne.jp, ns2.dns.ne.jp	-

✅ 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 o-collabo.com (unsigned zone)

⏱️ Timing

Total: 413ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`o-collabo.com`

Analysis

IP Addresses

mail.o-collabo.com resolves to one IP number: 219.94.128.45.

other host names including oyaji3.sakura.ne.jp, a-and-s.jp, dainippon.co.jp, jan-gle.com and sharara.info share IP numbers with mail.o-collabo.com.

Name Servers

mail.o-collabo.com is delegated to three name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.

mail.o-collabo.com at least partially shares name servers with other domains, for instance kai-shin.net, toyako.biz, olivet.sakura.ne.jp, msv-im07312.sakura.ne.jp and 224.188.210.in-addr.arpa.

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

mail.o-collabo.com is handled by a single mail server, o-collabo.com.

mail.o-collabo.com shares the same mail server setup as other domains, for instance o-collabo.com.

o-collabo.com resolves to IP 219.94.128.45.

mail.o-collabo.com - robtex.com