mk-work.net - robtex.com
mk-work.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.90.180.51🇯🇵 DRNET183.90.176.0/21 | ||||||
| PTR | tky-tada001.cbsv.jp | ||||||
| NS | a.misconfigured.dns.server.invalid ⭐ | ||||||
| NS | ns1.cbsv.jp | ||||||
| A | 172.64.52.149🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.52.199🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.cbsv.jp | ||||||
| A | 172.64.53.51🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.53.143🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | mk-work.net ⭐ | ||||||
| A | 183.90.180.51🇯🇵 DRNET183.90.176.0/21 | ||||||
| PTR | tky-tada001.cbsv.jp | ||||||
| TXT | v=spf1 ip4:183.90.180.51 include:_spf.cbsv.jp ~all | ||||||
| SOA | a.misconfigured.dns.server.invalidhostmaster@mk-work.net 2026-02-20 #10 | ||||||
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=1777235951 | ||||||
Previously NS for
mk-work.net |
MX for
mk-work.net |
Same first word
mk-work.net |
DNS History
11 records (5 active, 6 former)
●NSa.misconfigured.dns.server.invalid2026-04-04 → 2026-04-26 · 3 obs
● 2026-04-04 22:26:48
● 2026-04-26 20:42:32
○NSdns01.muumuu-domain.com2015-05-27 → 2016-07-19 · 4 obs
● 2016-07-19 00:00:12
○ 2017-03-14 18:26:06
○ 2026-04-26 20:42:32
○NSdns02.muumuu-domain.com2015-05-27 → 2016-07-19 · 4 obs
● 2016-07-19 00:00:12
○ 2017-03-14 18:26:06
○ 2026-04-26 20:42:32
○NSmk-work.net2015-05-27 → 2016-07-19 · 4 obs
● 2016-07-19 00:00:12
○ 2017-03-14 18:26:06
○ 2026-04-26 20:42:32
●NSns1.cbsv.jp2026-04-04 → 2026-04-26 · 3 obs
● 2026-04-04 22:26:48
● 2026-04-26 20:42:32
●NSns2.cbsv.jp2026-04-04 → 2026-04-26 · 3 obs
● 2026-04-04 22:26:48
● 2026-04-26 20:42:32
●MXmk-work.net2026-04-04 → 2026-04-26 · 3 obs
● 2026-04-04 22:26:48
● 2026-04-26 20:42:32
○MXmx01.lolipop.jp2015-05-27 → 2016-07-19 · 4 obs
● 2016-07-19 00:00:12
○ 2017-03-14 18:26:06
○ 2026-04-26 20:42:32
○A157.7.107.452016-07-19 → 2016-07-19 · 4 obs
● 2016-07-19 00:00:12
○ 2017-03-14 18:26:06
○ 2026-04-26 20:42:32
●A183.90.180.512026-04-04 → 2026-04-26 · 3 obs
● 2026-04-04 22:26:48
● 2026-04-26 20:42:32
○A210.172.144.2422015-05-27 → 2016-03-27 · 4 obs
● 2016-03-27 02:39:32
○ 2016-07-19 00:00:12
○ 2026-04-26 20:42:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| mk-work.net | ns1.cbsv.jp, ns2.cbsv.jp | - |
✅ Authoritative Response
Server:172.64.52.199
NS records: ns1.cbsv.jp, ns2.cbsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mk-work.net (unsigned zone)
⏱️ Timing
Total: 687ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.90.180.51 |
| NS | 2 | ns1.cbsv.jp, ns2.cbsv.jp |
| MX | 1 | mk-work.net (pri: 10) |
| TXT | 1 | v=spf1 ip4:183.90.180.51 include:_spf.cb |
| SOA | 1 | a.misconfigured.dns.server.invalid hostm |
Analysis
Mail Server Role
mk-work.net serves as the mail server for mk-work.net.
IP Addresses
mk-work.net points to a single IP address: 183.90.180.51.
Other host names such as california-custom.net, mail.fortune-crystal.com, fortune-crystal.com, ns2.world-database.com and mail.sh0u.jp share IP numbers with mk-work.net.
Name Servers
mk-work.net is delegated to three name servers: ns1.cbsv.jp, ns2.cbsv.jp and a.misconfigured.dns.server.invalid.
At least part of the name servers for mk-work.net are shared with other domains, for instance 365bigsale.com, yubou-suzume.jp, yuminette.com, bokukoi.net and chikugo-portal.com.
These name servers are commonly used together with the name servers ns1.domeeninimi.ee, ns2.domeeninimi.ee, ndns1.cosmotown.com, ndns2.cosmotown.com, ns1.vigbo.site and ns2.vigbo.site.
Host names with two IP numbers:
ns1.cbsv.jp points to 172.64.52.149 and 172.64.52.199.
ns2.cbsv.jp points to 172.64.53.51 and 172.64.53.143.
Mail Servers
Mail for mk-work.net is handled by a single mail server, mk-work.net.
Host mk-work.net points to IP 183.90.180.51.