niicov.com - robtex.com
niicov.com
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=1784414507 | ||||||
MX for
niicov.com |
Same first word
niicov.com |
Similar names
DNS History
12 records (7 active, 5 former)
○NSns1.systemdns.com2017-12-29 → 2017-12-29 · 3 obs
○ 2026-07-17 21:25:02
○ 2026-07-18 22:53:06
●NSns1.xserver.jp2026-07-17 → 2026-07-18 · 3 obs
● 2026-07-17 21:25:02
● 2026-07-18 22:53:06
○NSns2.systemdns.com2017-12-29 → 2017-12-29 · 3 obs
○ 2026-07-17 21:25:02
○ 2026-07-18 22:53:06
●NSns2.xserver.jp2026-07-17 → 2026-07-18 · 3 obs
● 2026-07-17 21:25:02
● 2026-07-18 22:53:06
○NSns3.systemdns.com2017-12-29 → 2017-12-29 · 3 obs
○ 2026-07-17 21:25:02
○ 2026-07-18 22:53:06
●NSns3.xserver.jp2026-07-17 → 2026-07-18 · 3 obs
● 2026-07-17 21:25:02
● 2026-07-18 22:53:06
●NSns4.xserver.jp2026-07-17 → 2026-07-18 · 3 obs
● 2026-07-17 21:25:02
● 2026-07-18 22:53:06
●NSns5.xserver.jp2026-07-17 → 2026-07-18 · 3 obs
● 2026-07-17 21:25:02
● 2026-07-18 22:53:06
○MXmx.niicov.com.cust.b.hostedemail.com2017-12-29 → 2017-12-29 · 3 obs
○ 2026-07-17 21:25:02
○ 2026-07-18 22:53:06
●MXniicov.com2026-07-17 → 2026-07-18 · 3 obs
● 2026-07-17 21:25:02
● 2026-07-18 22:53:06
●A183.181.90.1532026-07-17 → 2026-07-18 · 3 obs
● 2026-07-17 21:25:02
● 2026-07-18 22:53:06
○A23.227.38.322017-12-29 → 2017-12-29 · 3 obs
○ 2026-07-17 21:25:02
○ 2026-07-18 22:53:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, f.gtld-servers.net, a.gtld-servers.net, d.gtld-servers.net... | - |
| niicov.com | ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp... | - |
✅ Authoritative Response
Server:202.226.36.246
NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for niicov.com (unsigned zone)
⏱️ Timing
Total: 1222ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.181.90.153 |
| NS | 5 | ns3.xserver.jp, ns1.xserver.jp... |
| MX | 1 | niicov.com (pri: 0) |
| TXT | 1 | v=spf1 +a:sv8472.xserver.jp +a:niicov.co |
| SOA | 1 | ns1.xserver.jp root.xserver.jp |
Analysis
Mail Server Role
The MX record for niicov.com points back to niicov.com — it is its own mail server.
IP Addresses
niicov.com directs to one IP number, which is 183.181.90.153.
Among the host names that share IP numbers with niicov.com are yutakano-tosou.com, mail.masaharu0219.com, unfils.co.jp and two others.
Name Servers
The authoritative name servers for niicov.com are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.
niicov.com has at least partial name server overlap with other domains, such as hiroiumi.com, kurabiyori.jp, dspoiler.com and two others.
It is common to see these name servers used together with name servers ns4.xserver.jp and ns5.xserver.jp.
Hosts with three IP address records:
The hostname ns1.xserver.jp directs to 202.226.36.164, 202.226.36.170 and 202.226.36.246.
The hostname ns4.xserver.jp directs to 183.90.224.226, 183.90.224.230 and 202.226.39.247.
The hostname ns5.xserver.jp directs to 157.112.182.218, 157.112.182.220 and 202.226.37.247.
Hosts that resolve to one IP address:
ns2.xserver.jp has the IP address 35.72.43.26.
ns3.xserver.jp has the IP address 202.226.36.247.
Mail Servers
The MX record for niicov.com points to a single mail server: niicov.com.
niicov.com directs to just one IP number, 183.181.90.153.