🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`test.mailshell.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:9aa7^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:58f^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.5.143^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.154.167^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
MX	`mail.test.mailshell.dev` ⭐
		A	45.79.82.254^{🇺🇸 AKAMAI-LINODE-AP45.79.64.0/19 Akamai Technologies}
			PTR	`mail.test.mailshell.dev`
TXT	`v=spf1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.5.143, 172.67.154.167
		IPv6 hints	2606:4700:3032::ac43:9aa7, 2606:4700:3033::6815:58f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=65, name=cloudflare-ech.com

`mailshell.dev`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:9aa7^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:58f^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.5.143^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.154.167^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`mitch.ns.cloudflare.com` ⭐
NS	`zelda.ns.cloudflare.com`
MX	`mail.test.mailshell.dev` ⭐
TXT	`v=spf1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.5.143, 172.67.154.167
		IPv6 hints	2606:4700:3032::ac43:9aa7, 2606:4700:3033::6815:58f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=65, name=cloudflare-ech.com
SOA	`mitch.ns.cloudflare.com`dns@cloudflare.com serial=2413476000

Subdomains

mail.test.mailshell.dev

Same first word

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DNS History

5 records (5 active, 0 former)

●MXmail.test.mailshell.dev2026-08-31 → 2026-08-31 · 2 obs

● 2026-08-31 06:33:18
● 2026-08-31 06:33:20

●A104.21.5.1432026-08-31 → 2026-08-31 · 2 obs

● 2026-08-31 06:33:18
● 2026-08-31 06:33:20

●A172.67.154.1672026-08-31 → 2026-08-31 · 2 obs

● 2026-08-31 06:33:18
● 2026-08-31 06:33:20

●A2606:4700:3032::ac43:9aa72026-08-31 → 2026-08-31 · 2 obs

● 2026-08-31 06:33:18
● 2026-08-31 06:33:20

●A2606:4700:3033::6815:58f2026-08-31 → 2026-08-31 · 2 obs

● 2026-08-31 06:33:18
● 2026-08-31 06:33:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dev	ns-tld4.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com...	-
mailshell.dev	zelda.ns.cloudflare.com, mitch.ns.cloudflare.com	-

✅ Authoritative Response

Server:108.162.192.242

NS records: zelda.ns.cloudflare.com, mitch.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mailshell.dev (unsigned zone)

⏱️ Timing

Total: 594ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.154.167, 104.21.5.143`
AAAA	2	`2606:4700:3033::6815:58f, 2606:4700:3032::ac43:9aa7`
MX	1	`mail.test.mailshell.dev (pri: 5)`
TXT	1	`v=spf1 -all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

Analysis

Hierarchy

test.mailshell.dev serves as the parent of mail.test.mailshell.dev.

IP Addresses

test.mailshell.dev resolves to four IP addresses: 104.21.5.143, 172.67.154.167, 2606:4700:3032::ac43:9aa7 and 2606:4700:3033::6815:58f.

theyucca.com, xuxinhuishou.com, adcf.fr and two other host names share IP numbers with test.mailshell.dev.

Mail Servers

Mail for test.mailshell.dev is handled by a single mail server, mail.test.mailshell.dev.

The mail server configuration of test.mailshell.dev is identical to that of other domains — mailshell.dev being one example.

There is one IP number for mail.test.mailshell.dev: 45.79.82.254.

test.mailshell.dev - dns.ninja