tw.sumida.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`tw.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	`tw-sumida-com.mail.protection.outlook.com`⁽²⁰⁾
		A	2a01:111:f403:cc09::^{🇸🇬 Microsoft2a01:111:f000::/36}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1a::8^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-tydpr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1f::4^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os8pr02cu00104.inbound.protection.outlook.com`
		A	52.101.124.117^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tydpr03cu00105.inbound.protection.outlook.com`
		A	52.101.137.0^{🇸🇬 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	52.101.157.80^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os8pr02cu00100.inbound.protection.outlook.com`
TXT	`8VC6QELK8K6QZR0WDSMI44ZOZ9CSOMOVF8TUK3Z9`
TXT	`v=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com ip4:20...`

`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=209, name=cloudflare-ech.com
SOA	`elliot.ns.cloudflare.com`dns@cloudflare.com serial=2412085682

WOT: SAFE (62/100)
rank #169379 globally
rank #70225 in the tld
WOT: SAFE (72/100)
📈 Tranco rank: #297,873

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DNS History

2 records (2 active, 0 former)

●MXmailgate01.hk.sumida.com2026-04-18 → 2026-08-16 · 2 obs

● 2026-04-18 03:20:40
● 2026-08-16 06:21:34

●MXtw-sumida-com.mail.protection.outlook.com2026-04-18 → 2026-08-16 · 2 obs

● 2026-04-18 03:20:40
● 2026-08-16 06:21:34

🔍 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:108.162.193.162

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: 125ms | Queries: -

📄 Records

Type	Count	Sample Data
MX	2	`mailgate01.hk.sumida.com (pri: 10), tw-sumida-com.mail.protection.outlook.co`
TXT	2	`8VC6QELK8K6QZR0WDSMI44ZOZ9CSOMOVF8TUK3Z9, v=spf1 include:spf.protection.outlook.co`

📌 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 tw.sumida.com is handled by two mail servers — mailgate01.hk.sumida.com and tw-sumida-com.mail.protection.outlook.com.

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

These mail servers are frequently paired with the mail servers jp-sumida-com.mail.protection.outlook.com, sg-sumida-com.mail.protection.outlook.com and hk-sumida-com.mail.protection.outlook.com.

Hostnames that resolve to 6 IP addresses:

tw-sumida-com.mail.protection.outlook.com resolves to 52.101.124.117, 52.101.137.0 and 52.101.157.80 among others, with 3 other IP addresses in total.

Hosts with just one IP address:

The hostname mailgate01.hk.sumida.com resolves to 203.85.13.155.