subtree.cn - robtex.com
subtree.cn
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| 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=2035107298 | ||||||
Same first word
Similar names
DNS History
8 records (4 active, 4 former)
●NSf1g1ns1.dnspod.net2026-06-30 → 2026-07-29 · 3 obs
● 2026-06-30 05:57:20
● 2026-07-29 19:40:28
●NSf1g1ns2.dnspod.net2026-06-30 → 2026-07-29 · 3 obs
● 2026-06-30 05:57:20
● 2026-07-29 19:40:28
○NSns1.alidns.com2015-06-07 → 2017-04-20 · 4 obs
● 2017-04-20 12:51:56
○ 2026-06-30 05:57:20
○ 2026-07-29 19:40:28
○NSns2.alidns.com2015-06-07 → 2017-04-20 · 4 obs
● 2017-04-20 12:51:56
○ 2026-06-30 05:57:20
○ 2026-07-29 19:40:28
●MXmx.ym.163.com2026-06-30 → 2026-07-29 · 2 obs
● 2026-07-29 19:40:28
●A123.207.248.712026-06-30 → 2026-07-29 · 3 obs
● 2026-06-30 05:57:20
● 2026-07-29 19:40:28
○A123.254.111.1902015-06-07 → 2015-06-07 · 3 obs
○ 2015-10-16 19:00:40
○ 2026-07-29 19:40:28
○A124.16.31.1522015-10-16 → 2017-04-20 · 5 obs
● 2015-10-16 19:00:40
● 2017-04-20 12:51:56
○ 2026-06-30 05:57:20
○ 2026-07-29 19:40:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| subtree.cn | f1g1ns1.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)
No DS record for subtree.cn (unsigned zone)
⏱️ Timing
Total: 1259ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 123.207.248.71 |
| NS | 2 | f1g1ns1.dnspod.net, f1g1ns2.dnspod.net |
| MX | 1 | mx.ym.163.com (pri: 10) |
| TXT | 1 | v=spf1 include:spf.163.com ~all |
| SOA | 1 | f1g1ns1.dnspod.net freednsadmin.dnspod.c |
Analysis
IP Addresses
subtree.cn resolves to just one IP address, 123.207.248.71.
Name Servers
Two name servers handle the delegation for subtree.cn: f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.
subtree.cn shares its NS records with other domains, for example scskyy.com, itm.cn, moqikaka.com and two others.
subtree.cn has at least partial name server overlap with other domains, such as un3hv.icu, ynyc5q.icu, kraken2trfqodidvlh4aa337cpzfrhdlfldhve5n7instad.com and two others.
The name servers a.dnspod.com, c.dnspod.com, b.dnspod.com and two others are commonly seen in use alongside these name servers.
DNS names with 8 IP addresses:
f1g1ns2.dnspod.net resolves to 1.12.0.1, 1.13.76.35 and 36.155.149.35 among others, with 5 other IP addresses in total.
DNS names with 7 IP addresses:
f1g1ns1.dnspod.net resolves to 1.12.0.4, 1.14.119.35 and 111.13.13.35 among others, with 4 other IP addresses in total.
Mail Servers
The sole mail server for subtree.cn is mx.ym.163.com.
Among the domains sharing a mail server setup with subtree.cn are itcerttest.com, jsmkzdh.com, buyongbi.com and two others.
There is at least a partial MX overlap between subtree.cn and other domains, including oknk.com, ahcoffco.com, taoli.sh and two others.
These mail servers often co-occur with the mail servers mx2.ym.163.com.
mx.ym.163.com carries a single IP number, which is 111.124.200.35.