knowledgehk.com - dns.ninja
knowledgehk.com
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=1783926842 | ||||||
Same first word
knowledgehk.com |
Similar names
DNS History
19 records (11 active, 8 former)
○NSns1.asiahost.com.hk2015-06-30 → 2017-04-01 · 3 obs
● 2017-04-01 18:43:30
○ 2026-07-13 07:28:32
○NSns2.asiahost.com.hk2015-06-30 → 2017-04-01 · 3 obs
● 2017-04-01 18:43:30
○ 2026-07-13 07:28:32
○NSns3.asiahost.com.hk2015-06-30 → 2017-04-01 · 3 obs
● 2017-04-01 18:43:30
○ 2026-07-13 07:28:32
●NSns49.worldnic.com2026-07-13 → 2026-07-13 · 2 obs
● 2026-07-13 07:28:32
●NSns50.worldnic.com2026-07-13 → 2026-07-13 · 2 obs
● 2026-07-13 07:28:32
●MXalt1.aspmx.l.google.com2026-07-13 → 2026-07-13 · 2 obs
● 2026-07-13 07:28:32
●MXalt2.aspmx.l.google.com2026-07-13 → 2026-07-13 · 2 obs
● 2026-07-13 07:28:32
●MXalt3.aspmx.l.google.com2026-07-13 → 2026-07-13 · 2 obs
● 2026-07-13 07:28:32
●MXalt4.aspmx.l.google.com2026-07-13 → 2026-07-13 · 2 obs
● 2026-07-13 07:28:32
●MXaspmx.l.google.com2026-07-13 → 2026-07-13 · 2 obs
● 2026-07-13 07:28:32
○MXmxwall.asiahost.com.hk2015-06-30 → 2015-11-05 · 4 obs
● 2015-11-05 13:24:02
○ 2016-01-27 22:07:54
○ 2026-07-13 07:28:32
○MXmxwall01.asiahost.com.hk2016-01-27 → 2017-04-01 · 4 obs
● 2016-01-27 22:07:54
● 2017-04-01 18:43:30
○ 2026-07-13 07:28:32
○MXmxwall02.asiahost.com.hk2016-01-27 → 2017-04-01 · 4 obs
● 2016-01-27 22:07:54
● 2017-04-01 18:43:30
○ 2026-07-13 07:28:32
○A103.249.33.1142015-06-30 → 2016-06-20 · 4 obs
● 2016-06-20 11:32:52
○ 2017-04-01 18:43:30
○ 2026-07-13 07:28:32
○A202.126.223.732017-04-01 → 2017-04-01 · 3 obs
● 2017-04-01 18:43:30
○ 2026-07-13 07:28:32
●A216.239.32.212026-07-13 → 2026-07-13 · 2 obs
● 2026-07-13 07:28:32
●A216.239.34.212026-07-13 → 2026-07-13 · 2 obs
● 2026-07-13 07:28:32
●A216.239.36.212026-07-13 → 2026-07-13 · 2 obs
● 2026-07-13 07:28:32
●A216.239.38.212026-07-13 → 2026-07-13 · 2 obs
● 2026-07-13 07:28:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| knowledgehk.com | ns49.worldnic.com, ns50.worldnic.com | 2 records |
✅ Authoritative Response
Server:162.159.27.50
NS records: ns49.worldnic.com, ns50.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowledgehk.com (unsigned zone)
⏱️ Timing
Total: 1633ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 4 | 216.239.38.21, 216.239.36.21... |
| NS | 2 | ns49.worldnic.com, ns50.worldnic.com |
| MX | 5 | alt1.aspmx.l.google.com (pri: 5), alt3.aspmx.l.google.com (pri: 10)... |
| SOA | 1 | NS49.WORLDNIC.com namehost.WORLDNIC.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns49.worldnic.com, ns50.worldnic.com)
Analysis
IP Addresses
knowledgehk.com points to the four IP addresses 216.239.32.21, 216.239.34.21, 216.239.36.21 and 216.239.38.21.
bestogames.com, dvoibit.com, njtas.com plus two other host names have IP numbers in common with knowledgehk.com.
Name Servers
knowledgehk.com has two authoritative name servers — ns49.worldnic.com and ns50.worldnic.com.
The name server configuration of knowledgehk.com is shared with other domains, for instance clpgroup.info, intelpro.com, caticfinancial.com and two others.
The name servers for knowledgehk.com overlap at least partially with those of other domains — for example okta.plus.
Both ns49.worldnic.com and ns50.worldnic.com have a single IP address each — ns49.worldnic.com resolves to 162.159.26.111 while ns50.worldnic.com resolves to 162.159.27.50.
Mail Servers
knowledgehk.com has five mail servers, which are aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.
At least some of the mail servers used by knowledgehk.com are shared with other domains: ns500758.ns500698.ns500759.ns500698.ns500735.ns500736.ns500698.ns500735.ns500708.ns500576.ns500576.ns500652.ns500652.ns500619.trackreceptor.com, johnkline.com, ns500759.ns500758.ns500758.ns500698.ns500735.ns500735.ns500735.ns500735.ns500576.ns500576.ns500619.ns500619.ns500619.trackreceptor.com and two others among them.
These mail servers are often deployed together with alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 other mail servers.
Host names pointing to two IP addresses:
aspmx.l.google.com resolves to 172.253.63.27 and 2607:f8b0:4004:c0b::1b.
alt1.aspmx.l.google.com resolves to 108.177.123.27 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1a.
alt3.aspmx.l.google.com resolves to 192.178.223.27 and 2a00:1450:4009:c0f::1b.
alt4.aspmx.l.google.com resolves to 172.253.157.26 and 2a00:1450:400c:c23::1a.