profi4u.net - robtex.com
profi4u.net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 37.9.175.165🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24 | ||||||
| PTR | ing.r3.websupport.sk | ||||||
| NS | ns1.websupport.cz ⭐ | ||||||
| A | 2a10:bbc0::11🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns1.websupport.eu | ||||||
| A | 45.10.97.11🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns1.websupport.eu | ||||||
| NS | ns2.websupport.cz | ||||||
| A | 2a02:250:3::12🇸🇪 ACTIVE24-AS2a02:250:3::/48 | ||||||
| PTR | ns2.websupport.eu | ||||||
| A | 185.71.159.12🇸🇪 ACTIVE24-AS185.71.159.0/24 | ||||||
| PTR | ns2.websupport.eu | ||||||
| NS | ns3.websupport.eu | ||||||
| A | 2a10:bbc0::13🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns3.websupport.eu | ||||||
| A | 45.10.97.13🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns3.websupport.eu | ||||||
| SOA | ns1.websupport.czadmin@websupport.cz serial=1730466991 | ||||||
net
| 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.netnstld@verisign-grs.com serial=1778276141 | ||||||
Same first word
DNS History
7 records (4 active, 3 former)
○NSalfa.ns.active24.cz2015-05-26 → 2017-04-10 · 4 obs
● 2017-04-10 15:07:16
○ 2026-03-10 16:48:38
○ 2026-05-08 21:47:58
○NSbeta.ns.active24.cz2015-05-26 → 2017-04-10 · 4 obs
● 2017-04-10 15:07:16
○ 2026-03-10 16:48:38
○ 2026-05-08 21:47:58
●NSns1.websupport.cz2026-03-10 → 2026-05-08 · 3 obs
● 2026-03-10 16:48:38
● 2026-05-08 21:47:58
●NSns2.websupport.cz2026-03-10 → 2026-05-08 · 3 obs
● 2026-03-10 16:48:38
● 2026-05-08 21:47:58
●NSns3.websupport.eu2026-03-10 → 2026-05-08 · 3 obs
● 2026-03-10 16:48:38
● 2026-05-08 21:47:58
●A37.9.175.1652026-03-10 → 2026-05-08 · 3 obs
● 2026-03-10 16:48:38
● 2026-05-08 21:47:58
○A81.95.96.292015-05-26 → 2017-04-10 · 4 obs
● 2017-04-10 15:07:16
○ 2026-03-10 16:48:38
○ 2026-05-08 21:47:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, e.gtld-servers.net, m.gtld-servers.net, i.gtld-servers.net... | - |
| profi4u.net | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:185.71.159.12
NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 812ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.165 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
IP Addresses
profi4u.net resolves to a single IP address: 37.9.175.165.
Other host names including xdef.cz, bokel.name, zahrada-naradi.org, centralcomputer.hu and roman48.com share IP numbers with profi4u.net.
Name Servers
profi4u.net is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
profi4u.net at least partially shares name servers with other domains, including oggo.eu, 23.cz, map7.cz, martinjiranek.cz and icord.cz.
These name servers are often used together with ns1.websupport.sk.
Host names with two IP numbers:
ns1.websupport.cz points to: 2a10:bbc0::11 and 45.10.97.11
ns2.websupport.cz points to: 2a02:250:3::12 and 185.71.159.12
ns3.websupport.eu points to: 2a10:bbc0::13 and 45.10.97.13