doublefirst.cn - robtex.com
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doublefirst.cn
cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ 🔒 | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn 🔒 | ||||||
| NS | d.dns.cn 🔒 | ||||||
| NS | e.dns.cn 🔒 | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034456417 | ||||||
Same first word
doublefirst.cn |
doublefirst.com |
Similar names
DNS History
5 records (5 active, 0 former)
●NSdns21.hichina.com2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 10:38:24
●NSdns22.hichina.com2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 10:38:24
●MXmxn.mxhichina.com2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 10:38:24
●MXmxw.mxhichina.com2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 10:38:24
●A47.106.75.1622026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 10:38:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| doublefirst.cn | dns21.hichina.com, dns22.hichina.com | - |
✅ Authoritative Response
Server: 139.224.142.100
NS records: dns21.hichina.com, dns22.hichina.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for doublefirst.cn (unsigned zone)
⏱️ Timing
Total: 5062ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 47.106.75.162 |
| NS | 2 | dns22.hichina.com, dns21.hichina.com |
| MX | 2 | mxn.mxhichina.com (pri: 5), mxw.mxhichina.com (pri: 10) |
| TXT | 2 | 2017082900000052hls64874lm8hz8kyk1oz8a3o, v=spf1 include:spf.mxhichina.com -all |
| SOA | 1 | dns21.hichina.com hostmaster.hichina.com |
AI analysis
doublefirst.cn points to a single IP number: 47.106.75.162.
Other host names, for instance xn--uiss4n6nj47w.com and wxi7.com, share IP numbers with doublefirst.cn.
doublefirst.cn is delegated to two name servers: dns21.hichina.com and dns22.hichina.com.
doublefirst.cn uses the same name server setup as other domains, for instance tomatoast.com, cjig.ltd, 42g.top, zhichenghealth.com and xinshengda.cn.
doublefirst.cn shares name servers with other domains at least partially, for instance cn-kix.com and sinox.net.
Host names with nine IP numbers: dns21.hichina.com points to 2408:4009:501::29, 39.96.153.40, 39.96.153.60, 47.118.199.200, 47.118.199.220, 120.76.107.40, 120.76.107.60, 139.224.142.100 and 139.224.142.110; dns22.hichina.com points to 2408:4009:501::30, 39.96.153.38, 39.96.153.61, 47.118.199.198, 47.118.199.222, 120.76.107.38, 120.76.107.61, 139.224.142.98 and 139.224.142.108.
doublefirst.cn is handled by two mail servers: mxn.mxhichina.com and mxw.mxhichina.com.
doublefirst.cn shares the same mail server setup as other domains, including huilongkj.com, tianzhougz.com, yeiei.com, ssento.com and gyacht.net.
doublefirst.cn shares some mail servers with other domains, including qhzl.com, espnlol.com, hnek.net, otoomo.com and prostpharma.com.
Host names with two IPs:
mxn.mxhichina.com points to: 47.246.136.231 and 47.246.137.47.
Host names with one IP:
mxw.mxhichina.com points to: 47.246.99.195.