mx1.studyfun.cn - robtex.com
mx1.studyfun.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 221.6.35.101🇨🇳 CHINA169-Backbone221.6.0.0/16 CNC Group CHINA169 Jiangsu Province Network | ||||||
| PTR | mx1.focuschina.com | ||||||
studyfun.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 221.6.35.116🇨🇳 CHINA169-Backbone221.6.0.0/16 CNC Group CHINA169 Jiangsu Province Network | ||||||
| NS | julian.dnspod.net ⭐ | ||||||
| NS | linen.dnspod.net | ||||||
| MX | mx1.studyfun.cn ⭐ | ||||||
| MX | mail13.made-in-china.com(15) | ||||||
| TXT | v=spf1 a mx ip4:221.6.35.101 ip4:218.104.82.229 ip4:221.6.35.100 ip4:103.20.1... | ||||||
| SOA | julian.dnspod.netfreednsadmin@dnspod.com serial=1652336155 | ||||||
MX for
Same first word
Similar names
DNS History
2 records (1 active, 1 former)
○A218.104.82.2292020-04-05 → 2020-04-05 · 3 obs
● 2020-04-05 17:13:06
○ 2026-03-18 01:58:14
○ 2026-04-15 07:58:00
○ 2026-03-18 01:58:14
○ 2026-04-15 07:58:00
●A221.6.35.1012026-03-18 → 2026-04-15 · 3 obs
○ 2020-04-05 17:13:06
● 2026-03-18 01:58:14
● 2026-04-15 07:58:00
● 2026-03-18 01:58:14
● 2026-04-15 07:58:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| studyfun.cn | linen.dnspod.net, julian.dnspod.net | - |
✅ Authoritative Response
Server:1.12.0.4
NS records: linen.dnspod.net, julian.dnspod.net
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn
⏱️ Timing
Total: 3480ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 221.6.35.101 |
Analysis
Mail Server Role
The mail server for studyfun.cn is mx1.studyfun.cn.
For mail handling, mail13.made-in-china.com serves as a mail server together with mx1.studyfun.cn.
IP Addresses
mx1.studyfun.cn points to a single IP number: 221.6.35.101.
Other host names, for instance mail.focuschina.com, mx1.focuschina.com, mx1.micyjz.com, mx1.91xinbei.com and mx1.xyz.cn share IP numbers with mx1.studyfun.cn.