co-ws.com - robtex.com
co-ws.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 157.7.44.234🇯🇵 GMO-INTERNET157.7.40.0/21 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | users285.vip.heteml.jp | ||||||
| NS | dns01.muumuu-domain.com ⭐ | ||||||
| A | 202.239.23.39🇯🇵 IDC202.239.23.0/24 Frontier Inc. | ||||||
| NS | dns02.muumuu-domain.com | ||||||
| A | 160.251.249.62🇯🇵 GMOOSK-NET160.251.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| MX | mx.hetemail.jp ⭐ | ||||||
| A | 157.7.189.1🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | mx.heteml.jp | ||||||
| TXT | google-site-verification=fe71N1bSI1lsrfTylvHzIR1gMmGEPFI0AGhjJVhWbl4 | ||||||
| TXT | v=spf1 include:_spf.heteml.jp ~all | ||||||
| SOA | dns01.muumuu-domain.compostmaster@co-ws.com serial=1738001832 | ||||||
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=1774434762 | ||||||
PTR for
Previously NS for
co-ws.com |
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSco-ws.com2015-08-22 → 2017-10-15 · 4 obs
● 2017-10-15 08:58:30
○ 2026-02-25 00:40:22
○ 2026-03-25 10:48:54
●NSdns01.muumuu-domain.com2026-02-25 → 2026-03-25 · 3 obs
● 2026-02-25 00:40:22
● 2026-03-25 10:48:54
●NSdns02.muumuu-domain.com2026-02-25 → 2026-03-25 · 3 obs
● 2026-02-25 00:40:22
● 2026-03-25 10:48:54
○NSwns01.wadax.ne.jp2015-08-22 → 2017-10-15 · 4 obs
● 2017-10-15 08:58:30
○ 2026-02-25 00:40:22
○ 2026-03-25 10:48:54
○NSwx10.wadax.ne.jp2015-08-22 → 2017-10-15 · 4 obs
● 2017-10-15 08:58:30
○ 2026-02-25 00:40:22
○ 2026-03-25 10:48:54
●MXmx.hetemail.jp2026-02-25 → 2026-03-25 · 3 obs
● 2026-02-25 00:40:22
● 2026-03-25 10:48:54
○MXwh03.wadax.ne.jp2015-08-22 → 2017-10-15 · 4 obs
● 2017-10-15 08:58:30
○ 2026-02-25 00:40:22
○ 2026-03-25 10:48:54
●A157.7.44.2342026-02-25 → 2026-03-25 · 3 obs
● 2026-02-25 00:40:22
● 2026-03-25 10:48:54
○A202.189.179.822015-08-22 → 2017-10-15 · 4 obs
● 2017-10-15 08:58:30
○ 2026-02-25 00:40:22
○ 2026-03-25 10:48:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, c.gtld-servers.net, a.gtld-servers.net, b.gtld-servers.net... | - |
| co-ws.com | dns01.muumuu-domain.com, dns02.muumuu-domain.com | 2 records |
✅ Authoritative Response
Server:202.239.23.39
NS records: dns01.muumuu-domain.com, dns02.muumuu-domain.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for co-ws.com (unsigned zone)
⏱️ Timing
Total: 441ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 157.7.44.234 |
| NS | 2 | dns01.muumuu-domain.com, dns02.muumuu-domain.com |
| MX | 1 | mx.hetemail.jp (pri: 50) |
| TXT | 2 | google-site-verification=fe71N1bSI1lsrfT, v=spf1 include:_spf.heteml.jp ~all |
| SOA | 1 | dns01.muumuu-domain.com postmaster.co-ws |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns01.muumuu-domain.com, dns02.muumuu-domain.com)
Analysis
IP Addresses
co-ws.com points to an IP address: 157.7.44.234.
other host names include mx.tomatokensetsu.co.jp, 24amigo.com, edbu.org, mail.j-mat.com and ivoteforart.com; they share IP numbers with co-ws.com.
Name Servers
Two name servers dns01.muumuu-domain.com and dns02.muumuu-domain.com handle the delegation for co-ws.com.
co-ws.com shares the same name server setup as other domains, for instance wanpaku-dog.com, mir-f.jp, vcr.co.jp, minatocafe.com and oxoxoxox.com.
co-ws.com at least partially shares name servers with other domains, for instance doujikukakou.com, ks-mainte.com, owlstyle.com, masa-p.com and kurebooks.com.
Host names with one IP:
dns01.muumuu-domain.com points to: 202.239.23.39
dns02.muumuu-domain.com points to: 160.251.249.62
Mail Servers
co-ws.com is handled by a single mail server, mx.hetemail.jp.
co-ws.com uses the same mail server setup as other domains, for instance h-boas.com, himawari-home.jp, mcmas.jp, butch-office.com and dic-support.com.
The host name mx.hetemail.jp points to IP 157.7.189.1.