`smtp01.zero.jp`

DNSSEC	⚠️ Not signed
A	210.157.5.231^{🇯🇵 GMO-INTERNET210.157.0.0/20 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`smtp01.zero.jp`
MX	`mx.zero.jp` ⭐
		A	210.157.5.29^{🇯🇵 GMO-INTERNET210.157.0.0/20 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
			PTR	`mx.zero.jp`

`zero.jp`

	DNSSEC	⚠️ Not signed
	A	104.18.40.140^{Cloudflare104.18.40.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	A	172.64.147.116^{🇺🇸 Cloudflare172.64.147.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	NS	`ns1.cf.gmointernet.jp` ⭐
	NS	`ns2.cf.gmointernet.jp`
	MX	`mx.gmo.jp` ⭐
	TXT	`_dmarc v=DMARC1; p=none;`
	TXT	`spf2.0/pra include:_spf.gmo.jp ~all`
	TXT	`v=spf1 ip4:210.157.5.0/24 include:_spf.gmo.jp include:_spf.maildeliver.jp inc...`
	SOA	`ns1.cf.gmointernet.jp`dns@cloudflare.com serial=2395668577

WOT: SAFE (60/100)
rank #230406 globally
rank #3552 in the tld
WOT: SAFE (62/100)
📈 Tranco rank: #455,442

PTR for

231.5.157.210.in-addr.arpa

Same first word

smtp01.gov.ps

smtp01.pr.gov.br

smtp01.com

smtp01.uni5.net

smtp01.kinghost.net

Similar names

01tpms.cn

smtp10.kinghost.net

01tpms.com

smtp10.gov.tt

smtp10.com

DNS History

2 records (2 active, 0 former)

●MXmx.zero.jp2015-06-28 → 2026-03-23 · 2 obs

● 2015-06-28 08:22:16
● 2026-03-23 15:23:10

●A210.157.5.2312015-06-28 → 2026-03-23 · 2 obs

● 2015-06-28 08:22:16
● 2026-03-23 15:23:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp...	-
zero.jp	ns1.cf.gmointernet.jp, ns2.cf.gmointernet.jp	-

✅ Authoritative Response

Server:162.159.10.130

NS records: ns1.cf.gmointernet.jp, ns2.cf.gmointernet.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zero.jp (unsigned zone)

⏱️ Timing

Total: 1398ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.157.5.231`
MX	1	`mx.zero.jp (pri: 10)`

Analysis

IP Addresses

smtp01.zero.jp points to a single IP: 210.157.5.231.

Mail Servers

smtp01.zero.jp is handled by a single mail server, mx.zero.jp.

smtp01.zero.jp has the same mail server setup as other domains, including gold.zero.jp, yashio.me, wing.zero.ad.jp, mnx.ne.jp and blue.zero.jp.

mx.zero.jp points to a single IP: 210.157.5.29.

smtp01.zero.jp - robtex.com

smtp01.zero.jp

zero.jp