`mail.simplexsolutions.net`

DNSSEC	⚠️ Not signed
A	161.97.107.21^{🇩🇪 CONTABO161.97.106.0/23}
		PTR	`mail.simplexsolutions.net`

`simplexsolutions.net`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:42e1^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:cfba^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.66.225^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.207.186^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`arch.ns.cloudflare.com` ⭐
NS	`lara.ns.cloudflare.com`
MX	`mail.simplexsolutions.net` ⭐
TXT	`google-site-verification=hTlbflqjYuNO0OfCVtUsPbEqjLgkcawgUQ2uHCa7eH0`
TXT	`v=spf1 a mx include:_spf.mlsend.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.66.225, 172.67.207.186
		IPv6	2606:4700:3035::6815:42e1, 2606:4700:3036::ac43:cfba
SOA	`arch.ns.cloudflare.com`dns@cloudflare.com serial=2399391377

PTR for

21.107.97.161.in-addr.arpa

MX for

simplexsolutions.net

Same first word

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DNS History

1 record (1 active, 0 former)

●A161.97.107.212026-03-26 → 2026-03-26 · 2 obs

● 2026-03-26 00:27:20
● 2026-03-26 16:14:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
net	d.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net, e.gtld-servers.net...	-
simplexsolutions.net	lara.ns.cloudflare.com, arch.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.33.68

NS records: lara.ns.cloudflare.com, arch.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simplexsolutions.net (unsigned zone)

⏱️ Timing

Total: 119ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`161.97.107.21`

Analysis

Mail Server Role

mail.simplexsolutions.net serves as the mail server for simplexsolutions.net.

IP Addresses

mail.simplexsolutions.net points to a single IP: 161.97.107.21.

mail.simplexsolutions.net - robtex.com