`prof-solution.com`

DNSSEC	⚠️ Not signed
A	103.38.163.22^{🇭🇰 SPEEDYGROUPCLOUD-IX103.38.163.0/24 Proxy-registered route object}
		PTR	`ns22.hostingspeed.net`
NS	`dns1.hostingspeed.net` ⭐
		A	103.38.161.231^{🇭🇰 SGC-HK103.38.161.0/24 Proxy-registered route object}
			PTR	`dns1.hostingspeed.net`
			PTR	`dns4.hostingspeed.net`
			PTR	`ns1.hostingspeed.net`
			PTR	`ns4.hostingspeed.net`
NS	`dns2.hostingspeed.net`
		A	103.13.51.244^{🇭🇰 SGC-CAL-AS103.13.51.0/24 Speedy Group Corp. Limited}
			PTR	`dns2.hostingspeed.net`
			PTR	`ns2.hostingspeed.net`
NS	`dns3.hostingspeed.net`
		A	148.72.64.84^{🇺🇸 AS398101148.72.64.0/23}
			PTR	`84.64.72.148.host.secureserver.net`
NS	`dns4.hostingspeed.net`
MX	`prof-solution.com` ⭐
		A	103.38.163.22^{🇭🇰 SPEEDYGROUPCLOUD-IX103.38.163.0/24 Proxy-registered route object}
			PTR	`ns22.hostingspeed.net`
TXT	`v=spf1 ip4:103.38.163.22 include:spf.hostingspeed.net +a +mx +ip4:103.38.161....`
SOA	`dns1.hostingspeed.net`admin@hostingspeed.net 2026-03-16 #1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1776194642

MX for

prof-solution.com

Subdomains

mail.prof-solution.com

Same first word

prof-solution.com

DNS History

7 records (6 active, 1 former)

●NSdns1.hostingspeed.net2015-12-06 → 2026-04-14 · 2 obs

● 2015-12-06 03:05:00
● 2026-04-14 19:25:38

●NSdns2.hostingspeed.net2015-12-06 → 2026-04-14 · 2 obs

● 2015-12-06 03:05:00
● 2026-04-14 19:25:38

●NSdns3.hostingspeed.net2015-12-06 → 2026-04-14 · 2 obs

● 2015-12-06 03:05:00
● 2026-04-14 19:25:38

●NSdns4.hostingspeed.net2015-12-06 → 2026-04-14 · 2 obs

● 2015-12-06 03:05:00
● 2026-04-14 19:25:38

●MXprof-solution.com2015-12-06 → 2026-04-14 · 2 obs

● 2015-12-06 03:05:00
● 2026-04-14 19:25:38

○A103.38.161.2262015-12-06 → 2018-09-15 · 4 obs

● 2015-12-06 03:05:00
● 2018-09-15 09:12:30
○ 2026-02-21 00:50:26
○ 2026-04-14 19:25:38

●A103.38.163.222026-02-21 → 2026-04-14 · 3 obs

○ 2018-09-15 09:12:30
● 2026-02-21 00:50:26
● 2026-04-14 19:25:38

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, e.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net...	-
prof-solution.com	dns1.hostingspeed.net, dns2.hostingspeed.net, dns3.hostingspeed.net, dns4.hostingspeed.net	-

✅ Authoritative Response

Server:103.38.161.231

NS records: dns1.hostingspeed.net, dns2.hostingspeed.net, dns3.hostingspeed.net, dns4.hostingspeed.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for prof-solution.com (unsigned zone)

⏱️ Timing

Total: 843ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`103.38.163.22`
NS	4	`dns3.hostingspeed.net, dns4.hostingspeed.net...`
MX	1	`prof-solution.com (pri: 0)`
TXT	1	`v=spf1 ip4:103.38.163.22 include:spf.hos`
SOA	1	`dns1.hostingspeed.net admin.hostingspeed`

Analysis

Hierarchy

prof-solution.com is parent of mail.prof-solution.com.

Mail Server Role

prof-solution.com serves as a mail server for prof-solution.com.

IP Addresses

prof-solution.com points to a single IP: 103.38.163.22.

Other host names, for instance teenfuture.net, skcateringgroup.com, theccdg.org, get-target.com.hk and mail.wide-sky.org share IP numbers with prof-solution.com.

Name Servers

prof-solution.com is delegated to four name servers: dns1.hostingspeed.net, dns2.hostingspeed.net, dns3.hostingspeed.net and dns4.hostingspeed.net.

prof-solution.com at least partially shares its name servers with other domains, for instance hkrcg.com, hkreads.org.hk, artpro.com.hk, mob-fever.com and pilotstar.com.hk.

Host names with one IP number:

dns1.hostingspeed.net points to: 103.38.161.231.

dns2.hostingspeed.net points to: 103.13.51.244.

dns3.hostingspeed.net points to: 148.72.64.84.

Mail Servers

prof-solution.com is handled by a single mail server.

prof-solution.com points to IP number 103.38.163.22.

prof-solution.com - robtex.com