`num-solution.com`

DNSSEC	⚠️ Not signed
A	37.205.8.236^{🇨🇿 MASTER-AS37.205.8.0/22 RELBIT-VPSFREE}
NS	`ns2.web4u.cz` ⭐
		A	2a02:a40:100:28ff::12^{🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s.}
			PTR	`ns2.web4u.cz`
		A	85.207.53.12^{🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block}
			PTR	`ns2.web4u.cz`
NS	`ns.web4u.cz`
		A	2001:1568:fd::241^{🇨🇿 WEB4U2001:1568::/33}
			PTR	`ns.web4u.cz`
		A	185.14.224.241^{🇨🇿 WEB4U185.14.224.0/23}
			PTR	`ns.web4u.cz`
SOA	`ns.web4u.cz`admin@web4u.cz 2015-07-10 #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=1774491397

Same first word

num-solution.com

DNS History

4 records (3 active, 1 former)

●NSns.web4u.cz2016-12-17 → 2026-03-26 · 2 obs

● 2016-12-17 06:03:56
● 2026-03-26 02:18:06

●NSns2.web4u.cz2016-12-17 → 2026-03-26 · 2 obs

● 2016-12-17 06:03:56
● 2026-03-26 02:18:06

●A37.205.8.2362018-07-16 → 2026-03-26 · 3 obs

○ 2016-12-17 06:03:56
● 2018-07-16 21:33:28
● 2026-03-26 02:18:06

○A91.201.23.132016-12-17 → 2016-12-17 · 3 obs

● 2016-12-17 06:03:56
○ 2018-07-16 21:33:28
○ 2026-03-26 02:18:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
num-solution.com	ns.web4u.cz, ns2.web4u.cz	-

✅ Authoritative Response

Server:85.207.53.12

NS records: ns.web4u.cz, ns2.web4u.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

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

⏱️ Timing

Total: 920ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`37.205.8.236`
NS	2	`ns.web4u.cz, ns2.web4u.cz`
SOA	1	`ns.web4u.cz admin.web4u.cz`

Analysis

IP Addresses

num-solution.com points to a single IP: 37.205.8.236.

Other host names, for instance ai-solutions.cz, share IP numbers with num-solution.com.

Name Servers

num-solution.com's delegation is to two name servers ns2.web4u.cz and ns.web4u.cz.

num-solution.com shares the same name server configuration as other domains, such as datago.eu, web69.cz, boardnation.net, videris.eu and musketeers.cz.

Host names with two IP numbers: ns2.web4u.cz points to 2a02:a40:100:28ff::12 and 85.207.53.12; ns.web4u.cz points to 2001:1568:fd::241 and 185.14.224.241

num-solution.com - robtex.com

num-solution.com

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