ferf.cn - robtex.com

ferf.cn

DNSSEC⚠️ Not signed
A221.231.138.87🇨🇳 CHINATELECOM-JIANGSU-NANJING-IDC221.231.136.0/21 CTJS NJ-IDC
NSdns3.4cun.com ⭐
A2408:4005:3dc:af00:a6be:339e:a1a0:ceb7🇨🇳 Alibaba-Cloud2408:4005::/33
A61.172.183.74🇨🇳 SHANGHAITELECOM61.172.182.0/23 SHIDC
NSdns.4cun.com ⚠️ Not in zone NS records
NSdns4.51dns.top ⚠️ Not in zone NS records
A2408:4005:3dc:af00:a6be:339e:a1a0:ceb7🇨🇳 Alibaba-Cloud2408:4005::/33
A219.138.102.210🇨🇳 CHINATELECOM-HUBEI-YICHANG-IDC219.138.102.0/24 yichang
SOAdns.4cun.comadmin@ferf.cn serial=1772527038

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2034590561

Same first word

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ferf.nl
ferf.com.br
ferf.org
ferf.co
ferf.com

Similar names

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reff.net.ua
efrf.ru
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ffer.se
efrf.org
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ffre.de
reff.eu
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rfef.info
erff.cn
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reff.ru
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ffer.de
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reff.nl
ffer.dk
fefr.cn
fref.net
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effr.com
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ffer.fr
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ffre.org
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fref.com
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reff.be

DNS History

4 records (4 active, 0 former)

20162017201820192020202120222023202420252026NSdns.4cun.comdns3.4cun.comdns4.51dns.topA221.231.138.87
●NSdns.4cun.com2015-05-10 → 2026-03-26 · 2 obs
● 2015-05-10 08:07:46
● 2026-03-26 20:40:46
●NSdns3.4cun.com2026-03-25 → 2026-03-26 · 3 obs
○ 2015-05-10 08:07:46
● 2026-03-25 15:08:50
● 2026-03-26 20:40:46
●NSdns4.51dns.top2026-03-25 → 2026-03-26 · 3 obs
○ 2015-05-10 08:07:46
● 2026-03-25 15:08:50
● 2026-03-26 20:40:46
●A221.231.138.872026-03-25 → 2026-03-26 · 2 obs
● 2026-03-25 15:08:50
● 2026-03-26 20:40:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cna.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...-
ferf.cndns3.4cun.com, dns4.51dns.top-

✅ Authoritative Response

Server:219.138.102.210

NS records: dns3.4cun.com, dns4.51dns.top

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ferf.cn (unsigned zone)

⏱️ Timing

Total: 1666ms | Queries: -

📄 Records

TypeCountSample Data
A1221.231.138.87
SOA1dns.4cun.com admin.ferf.cn

Analysis

IP Addresses

ferf.cn points to a single IP number: 221.231.138.87.

other host names for instance daniopack.com, jsqkdz.xjz12.80data.net, longv.cn, baludan.cn and jxcmc.com share IP numbers with ferf.cn.

Name Servers

ferf.cn is delegated to three name servers: dns3.4cun.com, dns.4cun.com and dns4.51dns.top.

ferf.cn at least partially shares name servers with other domains, for instance oem118.com, ksbaowei.com, chhy.com.cn, lgfm.net and shaoyangnews.net.

These name servers are often used together with the name servers dns7.4cun.com, dns1.4cun.com, dns8.51dns.top, ns1.4cun.com, dns5.4cun.com, dns6.51dns.top, dns2.51dns.top, ns3.4cun.com, ns4.4cun.com and ns2.51dns.top.

Host names with two IP numbers:

dns3.4cun.com points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 61.172.183.74.

dns4.51dns.top points to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7 and 219.138.102.210.

Names pointing to 2408:4005:3dc:af00:a6be:339e:a1a0:ceb7: dns3.4cun.com and dns4.51dns.top.