jp.sumida.com - dns.ninja

`jp.sumida.com`

DNSSEC	⚠️ Not signed
MX	`mailgate01.hk.sumida.com` ⭐
		A	203.85.13.155^{🇭🇰 ASN-LINKAGE203.85.13.0/24 Far Eastone Telecommunications Co., Ltd No. 220, Gangchi Rd., Taipei 114 Taiwan}
			PTR	`mailgate01.hk.sumida.com`
MX	`jp-sumida-com.mail.protection.outlook.com`⁽²⁰⁾
		A	2a01:111:f403:cc1a::^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-tycp286cu02600.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1a::1^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-ty3p286cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1a::3^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-tyvp286cu00203.inbound.protection.outlook.com`
		A	2a01:111:f403:cc24::^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os0p286cu01300.inbound.protection.outlook.com`
		A	52.101.124.0^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tycp286cu02600.inbound.protection.outlook.com`
		A	52.101.124.6^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tyvp286cu00206.inbound.protection.outlook.com`
		A	52.101.157.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os0p286cu01302.inbound.protection.outlook.com`
		A	52.101.157.40^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os9p286cu00100.inbound.protection.outlook.com`
TXT	`8VC6QELK8K6QZR0WDSMI44ZOZ9CSOMOVF8TUK3Z9`
TXT	`apple-domain-verification=dfdMfIKZmCQEML3y`
TXT	`cisco-ci-domain-verification=62f80adf01ea07e8066a06cafda0b58e5cb41e38044650db...`
TXT	`sophos-domain-verification=b7e51bcb73c47b75270eb292716656d74430ab81dd578a4285...`
TXT	`v=spf1 include:spf.protection.outlook.com include:_spf.jcareers.com ip4:203.8...`

`sumida.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:11ee^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:b2dc^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.17.238^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.178.220^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`elliot.ns.cloudflare.com` ⭐
NS	`lia.ns.cloudflare.com`
MX	`mailgate01.hk.sumida.com` ⭐
TXT	`google-site-verification=z_SzP645qXbgxYlWy8eZxMZKoNLhjcRUCxFgtyFjdFk`
TXT	`v=spf1 mx -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.17.238, 172.67.178.220
		IPv6 hints	2606:4700:3035::6815:11ee, 2606:4700:3037::ac43:b2dc
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=174, name=cloudflare-ech.com
SOA	`elliot.ns.cloudflare.com`dns@cloudflare.com serial=2412085682

WOT: SAFE (62/100)
rank #174861 globally
rank #72604 in the tld
WOT: SAFE (72/100)
📈 Tranco rank: #302,642

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DNS History

2 records (2 active, 0 former)

●MXjp-sumida-com.mail.protection.outlook.com2015-08-06 → 2026-08-14 · 2 obs

● 2015-08-06 12:56:38
● 2026-08-14 19:13:36

●MXmailgate01.hk.sumida.com2026-04-18 → 2026-08-14 · 3 obs

○ 2015-08-06 12:56:38
● 2026-04-18 03:20:48
● 2026-08-14 19:13:36

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
sumida.com	elliot.ns.cloudflare.com, lia.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.185

NS records: elliot.ns.cloudflare.com, lia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sumida.com (unsigned zone)

⏱️ Timing

Total: 148ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	2	`mailgate01.hk.sumida.com (pri: 10), jp-sumida-com.mail.protection.outlook.co`
TXT	5	`8VC6QELK8K6QZR0WDSMI44ZOZ9CSOMOVF8TUK3Z9, apple-domain-verification=dfdMfIKZmCQEML...`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (elliot.ns.cloudflare.com, elliot.ns.cloudflare.com, elliot.ns.cloudflare.com...)

Analysis

Mail Servers

Mail for jp.sumida.com is handled by two mail servers — mailgate01.hk.sumida.com and jp-sumida-com.mail.protection.outlook.com.

jp.sumida.com has at least partial mail server overlap with other domains such as sumida.com.hk, sumida.com, sg.sumida.com and two more.

It is common to see these mail servers combined with the mail servers sg-sumida-com.mail.protection.outlook.com, tw-sumida-com.mail.protection.outlook.com and hk-sumida-com.mail.protection.outlook.com.

Hostnames that resolve to 8 IP addresses:

jp-sumida-com.mail.protection.outlook.com maps to 52.101.124.0, 52.101.124.6, 52.101.157.10 and 5 additional IP addresses.

Hosts with just one IP address:

mailgate01.hk.sumida.com resolves to the IP address 203.85.13.155.