`mx51.smileboldwin4.com`

DNSSEC	⚠️ Not signed
A	91.212.121.171^{🇩🇪 FerdinandZink91.212.121.0/24}
		PTR	`d-serv.uk`

`smileboldwin4.com`

	DNSSEC	⚠️ Not signed
	NS	`albert.ns.cloudflare.com` ⭐
	NS	`phoenix.ns.cloudflare.com`
	MX	`mx51.smileboldwin4.com` ⭐
	MX	`mx52.smileboldwin4.com`⁽²⁰⁾
	MX	`mx53.smileboldwin4.com`⁽³⁰⁾
	TXT	`v=spf1 ip4:91.212.121.171/32 -all`
	TXT	`yahoo-verification-key=S9Wk4aFQKNnkku9JTr6vIJXvEyHc0MB3z0h1P3VbmeI=`
	SOA	`albert.ns.cloudflare.com`dns@cloudflare.com serial=2409074655

MX for

smileboldwin4.com

Same first word

mx51.dev

mx51.io

Similar names

15xm.com

mx15.de

mx15.canva-apps.cn

xm15.com

15mx.com

51xm.net

mx15.net

51mx.net

xm51.com

51xm.com

DNS History

1 record (1 active, 0 former)

●A91.212.121.1712026-07-18 → 2026-07-19 · 2 obs

● 2026-07-18 20:31:34
● 2026-07-19 19:32:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
smileboldwin4.com	albert.ns.cloudflare.com, phoenix.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.201

NS records: albert.ns.cloudflare.com, phoenix.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smileboldwin4.com (unsigned zone)

⏱️ Timing

Total: 113ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`91.212.121.171`

📌 Glue Records Collected

Total: 12

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

Analysis

Mail Server Role

mx51.smileboldwin4.com is a mail server for smileboldwin4.com.

mx52.smileboldwin4.com and mx53.smileboldwin4.com tend to appear as mail servers in combination with mx51.smileboldwin4.com.

IP Addresses

mx51.smileboldwin4.com directs to one IP number, which is 91.212.121.171.

Host names such as mx52.smileboldwin4.com, mx53.smileboldwin4.com and mailer5.smileboldwin4.com share their IP numbers with mx51.smileboldwin4.com.

mx51.smileboldwin4.com - robtex.com