mrkopt.com - dns.ninja
mrkopt.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 160.16.205.133🇯🇵 SAKURA-B160.16.128.0/17 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | da65.willnet.ad.jp | ||||||
| NS | ns1.willnet.ne.jp ⭐ | ||||||
| A | 163.43.103.130🇯🇵 SAKURA-B163.43.0.0/16 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | ns1.willnet.ne.jp | ||||||
| NS | ns2.willnet.ne.jp | ||||||
| A | 133.18.128.93🇯🇵 KAGOYAJAPAN133.18.0.0/16 KAGOYA Japan Inc. | ||||||
| MX | mail.mrkopt.com ⭐ | ||||||
| A | 160.16.205.133🇯🇵 SAKURA-B160.16.128.0/17 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | da65.willnet.ad.jp | ||||||
| TXT | v=spf1 a mx include:spf01.willnet.ad.jp ~all | ||||||
| SOA | ns1.willnet.ne.jphostmaster@willnet.ne.jp 2021-10-22 #7 | ||||||
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=1785413347 | ||||||
Same first word
mrkopt.com |
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DNS History
6 records (4 active, 2 former)
●NSns1.willnet.ne.jp2016-12-14 → 2026-07-30 · 2 obs
● 2026-07-30 12:32:54
●NSns2.willnet.ne.jp2016-12-14 → 2026-07-30 · 2 obs
● 2026-07-30 12:32:54
●MXmail.mrkopt.com2016-12-14 → 2026-07-30 · 2 obs
● 2026-07-30 12:32:54
○A123.108.7.1502016-12-14 → 2016-12-14 · 3 obs
○ 2018-07-09 20:03:24
○ 2026-07-30 12:32:54
●A160.16.205.1332026-02-24 → 2026-07-30 · 3 obs
● 2026-02-24 14:58:18
● 2026-07-30 12:32:54
○A163.43.91.282018-07-09 → 2018-07-09 · 4 obs
● 2018-07-09 20:03:24
○ 2026-02-24 14:58:18
○ 2026-07-30 12:32:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, f.gtld-servers.net, k.gtld-servers.net, j.gtld-servers.net... | - |
| mrkopt.com | ns1.willnet.ne.jp, ns2.willnet.ne.jp | - |
✅ Authoritative Response
Server:133.18.128.93
NS records: ns1.willnet.ne.jp, ns2.willnet.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mrkopt.com (unsigned zone)
⏱️ Timing
Total: 1060ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 160.16.205.133 |
| NS | 2 | ns2.willnet.ne.jp, ns1.willnet.ne.jp |
| MX | 2 | mail.mrkopt.com (pri: 0), mail.mrkopt.com (pri: 10) |
| TXT | 1 | v=spf1 a mx include:spf01.willnet.ad.jp |
| SOA | 1 | ns1.willnet.ne.jp hostmaster.willnet.ne. |
Analysis
IP Addresses
mrkopt.com resolves to one IP address: 160.16.205.133.
e-hagi.net, mail.gk7.net, mail.segsys.jp and two other host names share IP numbers with mrkopt.com.
Name Servers
mrkopt.com is delegated to two name servers: ns1.willnet.ne.jp and ns2.willnet.ne.jp.
mrkopt.com uses the same name servers as several other domains — among them hitokotoseicha.jp, kita-q.mobi, shinko-koki.jp and two more.
mrkopt.com shares at least some of its name servers with other domains, including takano-st.co.jp, drone-base.net, remss.jp and two others.
These name servers are frequently paired with the name servers ns1.dnsserver-jp.net, ns2.dnsserver-jp.net and ns1.is-bright.com.
ns1.willnet.ne.jp and ns2.willnet.ne.jp each resolve to one IP number: ns1.willnet.ne.jp points to 163.43.103.130 and ns2.willnet.ne.jp points to 133.18.128.93.
Mail Servers
Mail for mrkopt.com is handled by a single mail server, mail.mrkopt.com.
mail.mrkopt.com resolves to a single IP number: 160.16.205.133.