`smtp03.zero.jp`

DNSSEC	⚠️ Not signed
A	210.157.5.233^{🇯🇵 GMO-INTERNET210.157.0.0/20 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan}
		PTR	`smtp03.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 #230749 globally
rank #3546 in the tld
WOT: SAFE (62/100)
📈 Tranco rank: #392,732

PTR for

233.5.157.210.in-addr.arpa

Same first word

smtp03.pr.gov.br

Similar names

smtp30.kinghost.net

DNS History

2 records (2 active, 0 former)

●MXmx.zero.jp2015-05-23 → 2026-05-14 · 2 obs

● 2015-05-23 14:24:34
● 2026-05-14 18:32:08

●A210.157.5.2332015-05-23 → 2026-05-14 · 2 obs

● 2015-05-23 14:24:34
● 2026-05-14 18:32:08

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:162.159.11.173

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zero.jp (unsigned zone)

⏱️ Timing

Total: 1420ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`210.157.5.233`
MX	1	`mx.zero.jp (pri: 10)`

Analysis

IP Addresses

smtp03.zero.jp points to an IP address: 210.157.5.233.

Mail Servers

smtp03.zero.jp is handled by a single mail server, mx.zero.jp.

smtp03.zero.jp uses the same mail server setup as other domains, for instance black.zero.jp, tp-o.net, fox.zero.ad.jp, d4.mnx.ne.jp and smtp02.zero.jp.

The host name mx.zero.jp points to IP 210.157.5.29.

smtp03.zero.jp - robtex.com

smtp03.zero.jp

zero.jp