knowledge-action.com - robtex.com
knowledge-action.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.172.25.33🇯🇵 DRNET202.172.24.0/21 | ||||||
| PTR | b32.coreserver.jp | ||||||
| NS | ns1.value-domain.com ⭐ | ||||||
| A | 172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.52.161🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.value-domain.com | ||||||
| A | 172.64.53.3🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.53.115🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns3.value-domain.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.52.161🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | knowledge-action.com ⭐ | ||||||
| A | 202.172.25.33🇯🇵 DRNET202.172.24.0/21 | ||||||
| PTR | b32.coreserver.jp | ||||||
| TXT | v=spf1 ip4:202.172.25.33 ~all | ||||||
| SOA | ns1.value-domain.comhostmaster@knowledge-action.com 2020-08-26 #19 | ||||||
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=1777027506 | ||||||
MX for
knowledge-action.com |
Same first word
knowledge-action.com |
DNS History
5 records (5 active, 0 former)
●NSns1.value-domain.com2015-07-12 → 2026-04-24 · 2 obs
● 2026-04-24 11:02:50
●NSns2.value-domain.com2015-07-12 → 2026-04-24 · 2 obs
● 2026-04-24 11:02:50
●NSns3.value-domain.com2026-04-07 → 2026-04-24 · 3 obs
● 2026-04-07 14:32:32
● 2026-04-24 11:02:50
●MXknowledge-action.com2015-07-12 → 2026-04-24 · 2 obs
● 2026-04-24 11:02:50
●A202.172.25.332015-07-12 → 2026-04-24 · 2 obs
● 2026-04-24 11:02:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| knowledge-action.com | ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com | 3 records |
✅ Authoritative Response
Server:172.64.52.161
NS records: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowledge-action.com (unsigned zone)
⏱️ Timing
Total: 458ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.172.25.33 |
| NS | 2 | ns1.value-domain.com, ns2.value-domain.com |
| MX | 1 | knowledge-action.com (pri: 10) |
| TXT | 1 | v=spf1 ip4:202.172.25.33 ~all |
| SOA | 1 | ns1.value-domain.com hostmaster.knowledg |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com)
Analysis
Mail Server Role
knowledge-action.com serves as the mail server for knowledge-action.com.
IP Addresses
knowledge-action.com points to an IP address: 202.172.25.33.
other host names include mail.kartworks.com, pplvrfr.b32.coreserver.jp, mx1.fujino-yusui.co.jp, mx1.iianbai.jp and mx1.vvjp.com; they share IP numbers with knowledge-action.com.
Name Servers
knowledge-action.com is delegated to three name servers ns1.value-domain.com, ns2.value-domain.com and ns3.value-domain.com.
knowledge-action.com at least partially shares name servers with other domains, for instance ckie.jp, luce-beauty.com, yano1016.co.jp, silkch.net and xas.co.jp.
These name servers are commonly used with ns4.value-domain.com, ns5.value-domain.com, ns11.value-domain.com, ns12.value-domain.com and ns13.value-domain.com.
Host names with two IP numbers
ns1.value-domain.com points to 172.64.52.38 and 172.64.52.161
ns2.value-domain.com points to 172.64.53.3 and 172.64.53.115
ns3.value-domain.com points to 172.64.52.38 and 172.64.52.161
Host names pointing to 172.64.52.38: ns1.value-domain.com and ns3.value-domain.com
Host names pointing to 172.64.52.161: ns1.value-domain.com and ns3.value-domain.com
Mail Servers
knowledge-action.com is handled by a single mail server.
The host name knowledge-action.com points to IP 202.172.25.33.