costcotuu.com - robtex.com
costcotuu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 162.43.103.137🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc. | ||||||
| PTR | sv10136.xbiz.ne.jp | ||||||
| NS | costcotuu.com ⭐ | ||||||
| A | 162.43.103.137🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc. | ||||||
| PTR | sv10136.xbiz.ne.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-proxy501.heteml.jp ⭐ | ||||||
| A | 157.7.189.17🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| MX | mx-proxy502.heteml.jp(20) | ||||||
| A | 157.7.189.18🇯🇵 GMO-INTERNET157.7.128.0/17 GMO Internet,Inc Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| SOA | costcotuu.compostmaster@costcotuu.com serial=1710123984 | ||||||
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=1771291435 | ||||||
rank #423728 in the tld
📈 Tranco rank: #198,034
NS for
costcotuu.com |
Subdomains
bbs.costcotuu.com |
Same first word
costcotuu.com |
DNS History
7 records (6 active, 1 former)
●NScostcotuu.com2015-07-06 → 2026-03-24 · 2 obs
● 2026-03-24 09:38:38
●NSdns01.muumuu-domain.com2015-07-06 → 2026-03-24 · 2 obs
● 2026-03-24 09:38:38
●NSdns02.muumuu-domain.com2015-07-06 → 2026-03-24 · 2 obs
● 2026-03-24 09:38:38
●MXmx-proxy501.heteml.jp2015-07-06 → 2026-03-24 · 2 obs
● 2026-03-24 09:38:38
●MXmx-proxy502.heteml.jp2015-07-06 → 2026-03-24 · 2 obs
● 2026-03-24 09:38:38
●A162.43.103.1372026-02-17 → 2026-03-24 · 3 obs
● 2026-02-17 09:51:30
● 2026-03-24 09:38:38
○A54.92.121.2402015-07-06 → 2017-02-16 · 4 obs
● 2017-02-16 10:28:26
○ 2026-02-17 09:51:30
○ 2026-03-24 09:38:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| costcotuu.com | dns01.muumuu-domain.com, dns02.muumuu-domain.com | 2 records |
✅ Authoritative Response
Server:160.251.249.62
NS records: dns01.muumuu-domain.com, dns02.muumuu-domain.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for costcotuu.com (unsigned zone)
⏱️ Timing
Total: 556ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 162.43.103.137 |
| NS | 2 | dns02.muumuu-domain.com, dns01.muumuu-domain.com |
| MX | 2 | mx-proxy501.heteml.jp (pri: 10), mx-proxy502.heteml.jp (pri: 20) |
| SOA | 1 | costcotuu.com postmaster.costcotuu.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns01.muumuu-domain.com, dns02.muumuu-domain.com)
Analysis
Hierarchy
costcotuu.com is the parent of bbs.costcotuu.com.
Name Server Role
costcotuu.com serves as a name server for costcotuu.com.
Typically, dns01.muumuu-domain.com and dns02.muumuu-domain.com are used as name servers together with costcotuu.com.
IP Addresses
costcotuu.com resolves to one IP number: 162.43.103.137.
Other host names, for instance sv10136.xbiz.ne.jp, share IP numbers with costcotuu.com.
Name Servers
costcotuu.com is delegated to three name servers: costcotuu.com, dns01.muumuu-domain.com and dns02.muumuu-domain.com.
costcotuu.com at least partially shares name servers with other domains, for instance ym2t.net, blackmagicdesign-creatorscom.jp, mstao.net, littlejumbo.jp and makemoney.jp.
Host names with one IP number: costcotuu.com points to 162.43.103.137; dns01.muumuu-domain.com points to 202.239.23.39; dns02.muumuu-domain.com points to 160.251.249.62.
Mail Servers
Two mail servers handle costcotuu.com: mx-proxy501.heteml.jp and mx-proxy502.heteml.jp.
costcotuu.com shares the same mail server setup as other domains, for instance huginc.net, ryobi-ferry.com, chibiru.com, trefle-yokohama.com and saikosya.com.
costcotuu.com shares mail servers with other domains to some extent, for instance aomori-daihatsu.co.jp.
Host names with one IP number:
mx-proxy501.heteml.jp points to 157.7.189.17
mx-proxy502.heteml.jp points to 157.7.189.18