csharpstudy.cn - robtex.com

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

csharpstudy.cn

DNSSEC⚠️ Not signed
A47.104.21.186🇨🇳 Alibaba-Cloud47.104.0.0/16
NSf1g1ns1.dnspod.net ⭐
A2402:4e00:1470:2::e🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40
A1.12.0.4🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM
A1.14.119.35🇨🇳 TENCENT-NET-AP1.14.64.0/18
A111.13.13.35🇨🇳 CHINAMOBILE-CN111.13.0.0/16 CMI (Customer Route)
A117.135.128.235🇨🇳 CHINAMOBILE-CN117.135.128.0/24 CMI (Customer Route)
A125.94.59.235🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network
A163.177.5.35🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24
NSf1g1ns2.dnspod.net
A2402:4e00:111:fff::c🇨🇳 TENCENT-NET-AP2402:4e00::/35
A1.12.0.1🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM
A1.13.76.35🇨🇳 TENCENT-NET-AP1.13.64.0/18
A36.155.149.35🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)
A101.227.168.35🇨🇳 SHANGHAITELECOM101.227.168.0/23 SHIDC
A106.39.207.235🇨🇳 CHINA-1106.39.192.0/19 China Telecom Beijing Co. Ltd.
A111.206.98.235🇨🇳 CHINA169-BJ111.206.98.0/24
A180.153.208.207🇨🇳 SHANGHAITELECOM180.153.208.0/24 SHIDC
A220.196.136.35🇨🇳 UNICOM-SHFT-IDC220.196.136.0/24
SOAf1g1ns1.dnspod.netfreednsadmin@dnspod.com serial=1788255413

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=2035541299

Same first word

csharpstudy.org
csharpstudy.com
csharpstudy.cn
csharpstudy.hatenablog.com

Previous names

cshall.cn
cshaman.cn
cshang.cn
cshanting.cn
cshao.cn
cshaobangshou.cn
cshaoda.cn
cshaolong.cn
cshaomei.cn
cshap.cn
cshare.cn
csharp.cn
csharper.cn
csharps.cn

Next names

csharptutorial.cn
cshauwc.cn
cshawaii.cn
cshaxs.cn
cshay.cn
cshayne.cn
cshb888.cn
cshbbrain.cn
cshbcq.cn
cshbelt.cn
cshbg.cn
cshbjd.cn
cshbkj.cn
cshblogger.cn
cshbmj.cn
cshbox.cn
cshbxx.cn
cshbxy.cn
cshbz.cn

DNS History

3 records (3 active, 0 former)

NSf1g1ns1.dnspod.netf1g1ns2.dnspod.netA47.104.21.186
●NSf1g1ns1.dnspod.net2026-09-07 → 2026-11-09 · 2 obs
● 2026-09-07 19:02:58
● 2026-11-09 15:11:20
●NSf1g1ns2.dnspod.net2026-09-07 → 2026-11-09 · 2 obs
● 2026-09-07 19:02:58
● 2026-11-09 15:11:20
●A47.104.21.1862026-09-07 → 2026-11-09 · 4 obs
● 2026-09-07 19:02:58
○ 2026-09-26 13:54:38
● 2026-10-03 01:10:40
● 2026-11-09 15:11:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cne.dns.cn, a.dns.cn, c.dns.cn, ns.cernet.net...11 records
csharpstudy.cnf1g1ns1.dnspod.net, f1g1ns2.dnspod.net-

✅ Authoritative Response

Server:117.135.128.235

NS records: f1g1ns1.dnspod.net, f1g1ns2.dnspod.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

Root DNSKEY fetch failed: Error: connect EADDRNOTAVAIL 198.41.0.4:53 - Local (0.0.0.0:0)

⏱️ Timing

Total: 1173ms | Queries: -

📄 Records

TypeCountSample Data
A147.104.21.186
NS2f1g1ns2.dnspod.net, f1g1ns1.dnspod.net
SOA1f1g1ns1.dnspod.net freednsadmin.dnspod.c

📌 Glue Records Collected

Total: 11

In-bailiwick: 10 (e.dns.cn, e.dns.cn, a.dns.cn...)

Out-of-bailiwick: 1 (ns.cernet.net)

Analysis

IP Addresses

csharpstudy.cn resolves to one IP address: 47.104.21.186.

Name Servers

csharpstudy.cn has two authoritative name servers — f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.

csharpstudy.cn uses the same name servers as several other domains — among them rugao.in, rambling.cn, c(0x68656e746169)tex.com and two more.

The name servers of csharpstudy.cn overlap at least partially with those of other domains — among them shijuechuanmei.com, ybzvbvt.site, fpxpnhi.com and two more.

It is common to find these name servers alongside the name servers a.dnspod.com, c.dnspod.com, b.dnspod.com and two others.

Hostnames that resolve to 9 IP addresses:

f1g1ns2.dnspod.net points to 1.12.0.1, 1.13.76.35, 36.155.149.35 and 6 other IP addresses.

Hostnames that resolve to 7 IP addresses:

f1g1ns1.dnspod.net points to 1.12.0.4, 1.14.119.35, 111.13.13.35 and 4 other IP addresses.