crefu.com - dns.ninja
crefu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 121.254.171.116🇰🇷 DACOM-NET121.254.128.0/17 contact noc@bora.net if necessary | ||||||
| PTR | web116.koreafree.co.kr | ||||||
| NS | ns78.dnszi.com ⭐ | ||||||
| A | 121.78.251.28🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net | ||||||
| NS | ns16.dnszi.com | ||||||
| A | 58.120.225.175🇰🇷 SKB-NET58.120.0.0/13 auto-generated route object for 58.120.0.0/13 | ||||||
| PTR | ns16.dnszi.com | ||||||
| NS | ns55.dnszi.com | ||||||
| A | 121.78.72.46🇰🇷 KINXIDC-AS-KR121.78.72.0/24 KINX-IDC | ||||||
| PTR | ns55.dnszi.com | ||||||
| NS | ns64.dnszi.com | ||||||
| A | 27.1.16.79🇰🇷 DAOU-AS-KR27.1.16.0/22 DAOU Tech | ||||||
| PTR | ns64.dnszi.com | ||||||
| NS | ns7.dnszi.com | ||||||
| A | 121.78.251.22🇰🇷 KINXIDC-AS-KR121.78.224.0/19 KINX-Net | ||||||
| MX | ezsmtp.bizmeka.com ⭐ | ||||||
| TXT | v=spf1 include:ezspf.bizmeka.com ip4:121.254.171.116 ip4:115.41.222.0/24 ~all | ||||||
| SOA | ns7.dnszi.comroot@dnszi.com 2022-09-19 #1 | ||||||
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=1782605430 | ||||||
Same first word
crefu.com |
Similar names
DNS History
11 records (7 active, 4 former)
○NSns11.whois.co.kr2015-08-15 → 2017-10-26 · 4 obs
● 2017-10-26 06:09:32
○ 2026-03-12 16:13:40
○ 2026-06-28 00:23:00
○NSns11.whoisweb.net2015-08-15 → 2017-10-26 · 4 obs
● 2017-10-26 06:09:32
○ 2026-03-12 16:13:40
○ 2026-06-28 00:23:00
●NSns16.dnszi.com2026-03-12 → 2026-06-28 · 3 obs
● 2026-03-12 16:13:40
● 2026-06-28 00:23:00
●NSns55.dnszi.com2026-03-12 → 2026-06-28 · 3 obs
● 2026-03-12 16:13:40
● 2026-06-28 00:23:00
●NSns64.dnszi.com2026-03-12 → 2026-06-28 · 3 obs
● 2026-03-12 16:13:40
● 2026-06-28 00:23:00
●NSns7.dnszi.com2026-03-12 → 2026-06-28 · 3 obs
● 2026-03-12 16:13:40
● 2026-06-28 00:23:00
●NSns78.dnszi.com2026-03-12 → 2026-06-28 · 3 obs
● 2026-03-12 16:13:40
● 2026-06-28 00:23:00
●MXezsmtp.bizmeka.com2026-03-12 → 2026-06-28 · 3 obs
● 2026-03-12 16:13:40
● 2026-06-28 00:23:00
○MXmx.crefu.com2015-08-15 → 2017-10-26 · 4 obs
● 2017-10-26 06:09:32
○ 2026-03-12 16:13:40
○ 2026-06-28 00:23:00
●A121.254.171.1162026-03-12 → 2026-06-28 · 3 obs
● 2026-03-12 16:13:40
● 2026-06-28 00:23:00
○A218.232.110.1652015-08-15 → 2017-10-26 · 4 obs
● 2017-10-26 06:09:32
○ 2026-03-12 16:13:40
○ 2026-06-28 00:23:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| crefu.com | ns7.dnszi.com, ns16.dnszi.com, ns55.dnszi.com, ns64.dnszi.com... | 5 records |
✅ Authoritative Response
Server:121.78.251.22
NS records: ns7.dnszi.com, ns16.dnszi.com, ns55.dnszi.com, ns64.dnszi.com, ns78.dnszi.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for crefu.com (unsigned zone)
⏱️ Timing
Total: 2523ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 121.254.171.116 |
| NS | 5 | ns16.dnszi.com, ns64.dnszi.com... |
| MX | 1 | ezsmtp.bizmeka.com (pri: 10) |
| TXT | 1 | v=spf1 include:ezspf.bizmeka.com ip4:121 |
| SOA | 1 | ns7.dnszi.com root.dnszi.com |
📌 Glue Records Collected
Total: 5
Out-of-bailiwick: 5 (ns7.dnszi.com, ns16.dnszi.com, ns55.dnszi.com...)
Analysis
IP Addresses
crefu.com resolves to just one IP address, 121.254.171.116.
Two other host names, along with mail.gmisil.com, icmb.kr and dongyangin.com, also share IP numbers with crefu.com.
Name Servers
crefu.com delegates to five name servers: ns16.dnszi.com, ns55.dnszi.com, ns64.dnszi.com and two others.
There is at least partial name server overlap between crefu.com and other domains — cric.or.kr, woobi.org, nobo3.info and two more among them.
These name servers frequently co-occur with the name servers ns78.dnszi.com and ns7.dnszi.com.
Host names that point to one IP address:
The hostname ns16.dnszi.com resolves to 58.120.225.175.
The hostname ns55.dnszi.com resolves to 121.78.72.46.
The hostname ns64.dnszi.com resolves to 27.1.16.79.
The hostname ns78.dnszi.com resolves to 121.78.251.28.
The hostname ns7.dnszi.com resolves to 121.78.251.22.
Mail Servers
The sole mail server for crefu.com is ezsmtp.bizmeka.com.
Among the domains sharing a mail server setup with crefu.com are oec.co.kr, fnsagency.com, spccok.com and two others.
There is at least a partial MX overlap between crefu.com and other domains, including gmskor.com, jangsfood.com, h-works.co.kr and two others.
These mail servers are routinely seen in conjunction with the mail servers aspmx.daum.net and alt.aspmx.daum.net.