`mail.exercisek.com`

DNSSEC	⚠️ Not signed
A	47.254.92.90^{🇺🇸 Alibaba-Cloud47.254.64.0/18 Proxy-registered route object}
		PTR	`ninisilk.com`
		PTR	`new.showcloud.top`

`exercisek.com`

	DNSSEC	⚠️ Not signed
	A	104.18.3.157^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	NS	`dns13.hichina.com` ⭐
	NS	`dns14.hichina.com`
	MX	`mail.exercisek.com` ⭐
	TXT	`v=spf1 ip4:47.254.92.90~all`
	SOA	`dns13.hichina.com`hostmaster@hichina.com 2026-01-12 #9

⚠️ On DNS blocklist: tif

MX for

exercisek.com

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DNS History

1 record (1 active, 0 former)

●A47.254.92.902026-03-23 → 2026-03-24 · 2 obs

● 2026-03-23 11:12:58
● 2026-03-24 04:06:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
exercisek.com	dns13.hichina.com, dns14.hichina.com	18 records

✅ Authoritative Response

Server:120.76.107.41

NS records: dns13.hichina.com, dns14.hichina.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for exercisek.com (unsigned zone)

⏱️ Timing

Total: 639ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`47.254.92.90`

📌 Glue Records Collected

Total: 18

Out-of-bailiwick: 18 (dns13.hichina.com, dns13.hichina.com, dns13.hichina.com...)

Analysis

Mail Server Role

mail.exercisek.com is the mail server for exercisek.com.

IP Addresses

mail.exercisek.com resolves to one IP number: 47.254.92.90.

other host names including mail.showcloud.top, mail.centerty.com, mail.leoffength.com, mail.onimpress.com and mail.akeepkeen.com share IP numbers with mail.exercisek.com.

mail.exercisek.com - robtex.com