`mail-api.bookwalker.jp`

DNSSEC	⚠️ Not signed
A	175.184.39.80^{🇯🇵 FJcloud-East175.184.36.0/22 Fujitsu Ltd. X-Keiro : fjct-noc@cs.jp.fujitsu.com}
		PTR	`mail-api.bookwalker.jp`

`bookwalker.jp`

	DNSSEC	⚠️ Not signed
	A	13.230.186.155^{🇯🇵 Amazon13.230.0.0/15 EC2 NRT prefix}
	A	54.150.220.194^{🇯🇵 Amazon54.150.0.0/16 EC2 NRT prefix}
	NS	`ns-1830.awsdns-36.co.uk` ⭐
	NS	`ns-1154.awsdns-16.org`
	NS	`ns-40.awsdns-05.com`
	NS	`ns-937.awsdns-53.net`
	MX	`smtp.google.com` ⭐
	TXT	`google-site-verification=3wPRIxfw_zqaKauiQpa9n_YoZiqXMS767Fq0uReGlwA`
	TXT	`v=spf1 +ip4:176.34.29.234 +ip4:54.248.116.224 +ip4:175.184.34.38 +ip4:176.34....`
	SOA	`ns-1830.awsdns-36.co.uk`awsdns-hostmaster@amazon.com serial=1

WOT: SAFE (61/100)
rank #38242 globally
rank #773 in the tld
WOT: SAFE (68/100)
📈 Tranco rank: #16,665

PTR for

80.39.184.175.in-addr.arpa

Same first word

mail-api.com

Similar names

iap-mail.com

api-mail.sakura.ne.jp

api-mail.com

DNS History

1 record (1 active, 0 former)

●A175.184.39.802026-03-02 → 2026-04-13 · 2 obs

● 2026-03-02 18:37:32
● 2026-04-13 10:19:50

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
jp	h.dns.jp, d.dns.jp, a.dns.jp, g.dns.jp...	-
bookwalker.jp	ns-1830.awsdns-36.co.uk, ns-40.awsdns-05.com, ns-937.awsdns-53.net, ns-1154.awsdns-16.org	-

✅ Authoritative Response

Server:205.251.199.38

NS records: ns-1830.awsdns-36.co.uk, ns-40.awsdns-05.com, ns-937.awsdns-53.net, ns-1154.awsdns-16.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bookwalker.jp (unsigned zone)

⏱️ Timing

Total: 411ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`175.184.39.80`

Analysis

IP Addresses

mail-api.bookwalker.jp points to a single IP: 175.184.39.80.

mail-api.bookwalker.jp - robtex.com