knowledge4c.com - robtex.com
knowledge4c.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 103.10.78.50🇲🇾 STSB-AS-AP103.10.78.0/24 Serverfreak Technologies Sdn Bhd 12A, Jalan Teluk Pulai KS/1 | ||||||
| PTR | saga.sfdns.net | ||||||
| NS | dns1.serverfreak.biz ⭐ | ||||||
| A | 51.68.189.56🇫🇷 OVH51.68.0.0/16 | ||||||
| PTR | 56.ip-51-68-189.eu | ||||||
| NS | dns2.serverfreak.biz | ||||||
| A | 167.172.91.23🇸🇬 DIGITALOCEAN167.172.80.0/20 DigitalOcean | ||||||
| A | 209.58.172.101🇸🇬 LEASEWEB-APAC-SIN-11209.58.168.0/21 LEASEWEB SINGAPORE PTE. LTD. 18B Keong Saik Road Singapore, 089125 | ||||||
| MX | knowledge4c.com ⭐ | ||||||
| A | 103.10.78.50🇲🇾 STSB-AS-AP103.10.78.0/24 Serverfreak Technologies Sdn Bhd 12A, Jalan Teluk Pulai KS/1 | ||||||
| PTR | saga.sfdns.net | ||||||
| SOA | dns1.serverfreak.bizroot@system.serverfreak.net 2026-09-20 #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.netnstld@verisign-grs.com serial=1790314109 | ||||||
MX for
knowledge4c.com |
Same first word
knowledge4c.com |
Previous names
Next names
DNS History
9 records (4 active, 5 former)
●NSdns1.serverfreak.biz2026-09-22 → 2026-09-25 · 3 obs
● 2026-09-22 23:55:56
● 2026-09-25 05:51:42
●NSdns2.serverfreak.biz2026-09-22 → 2026-09-25 · 3 obs
● 2026-09-22 23:55:56
● 2026-09-25 05:51:42
○NSns1hwy.name.com2018-06-26 → 2018-06-26 · 3 obs
○ 2026-09-22 23:55:56
○ 2026-09-25 05:51:42
○NSns2btz.name.com2018-06-26 → 2018-06-26 · 3 obs
○ 2026-09-22 23:55:56
○ 2026-09-25 05:51:42
○NSns3fgh.name.com2018-06-26 → 2018-06-26 · 3 obs
○ 2026-09-22 23:55:56
○ 2026-09-25 05:51:42
○NSns4clq.name.com2018-06-26 → 2018-06-26 · 3 obs
○ 2026-09-22 23:55:56
○ 2026-09-25 05:51:42
●MXknowledge4c.com2026-09-22 → 2026-09-25 · 2 obs
● 2026-09-25 05:51:42
●A103.10.78.502026-09-22 → 2026-09-25 · 3 obs
● 2026-09-22 23:55:56
● 2026-09-25 05:51:42
○A91.195.240.822018-06-26 → 2018-06-26 · 3 obs
○ 2026-09-22 23:55:56
○ 2026-09-25 05:51:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| knowledge4c.com | dns1.serverfreak.biz, dns2.serverfreak.biz | - |
✅ Authoritative Response
Server:51.68.189.56
NS records: dns1.serverfreak.biz, dns2.serverfreak.biz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowledge4c.com (unsigned zone)
⏱️ Timing
Total: 1930ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 103.10.78.50 |
| NS | 2 | dns2.serverfreak.biz, dns1.serverfreak.biz |
| MX | 1 | knowledge4c.com (pri: 0) |
| SOA | 1 | dns1.serverfreak.biz root.system.serverf |
Analysis
Mail Server Role
knowledge4c.com acts as its own mail server.
IP Addresses
knowledge4c.com points to a single IP number: 103.10.78.50.
Additional host names — mail.giclee-art.my, cyrev.com, myinfaqquran.my and two others — share IP numbers with knowledge4c.com.
Name Servers
DNS delegation for knowledge4c.com points to two name servers: dns1.serverfreak.biz and dns2.serverfreak.biz.
knowledge4c.com shares its name server setup with other domains, including bozkurt.com.my, viknatech.com, bahteraperkasa.com.my and two others.
knowledge4c.com has at least partial name server overlap with other domains, such as onestopinsurance.my, gdsco.com.my, manukabyhavis.com and two others.
It is common to find these name servers paired with the name servers ns11.nazartt.net, ns12.nazartt.net, dns5.serverfreak.biz and dns6.serverfreak.biz.
Host names with two IP numbers:
dns2.serverfreak.biz has two IP addresses: 167.172.91.23 and 209.58.172.101.
Host names pointing to a single IP address:
dns1.serverfreak.biz directs to 51.68.189.56.
Mail Servers
knowledge4c.com has a single mail server: knowledge4c.com itself.
knowledge4c.com has exactly one IP number: 103.10.78.50.