cfdns81.com - robtex.com
cfdns81.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns2.ddoss-waf.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 121.37.230.116🇨🇳 HWCSNET121.37.192.0/18 Huawei Clouds Guangzhou Region | ||||||
| NS | ns1.cfdns81.com ⚠️ Not in zone NS records | ||||||
| A | 47.109.31.80🇨🇳 Alibaba-Cloud47.109.0.0/16 | ||||||
| A | 121.37.230.116🇨🇳 HWCSNET121.37.192.0/18 Huawei Clouds Guangzhou Region | ||||||
| NS | ns1.ddoss-waf.com ⚠️ Not in parent delegation | ||||||
| A | 47.109.31.80🇨🇳 Alibaba-Cloud47.109.0.0/16 | ||||||
| NS | ns2.cfdns81.com ⚠️ Not in zone NS records | ||||||
| A | 47.109.31.80🇨🇳 Alibaba-Cloud47.109.0.0/16 | ||||||
| A | 121.37.230.116🇨🇳 HWCSNET121.37.192.0/18 Huawei Clouds Guangzhou Region | ||||||
| SOA | ns2.ddoss-waf.comzeus@bb2.com serial=1773223023 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1784128162 | ||||||
Subdomains
DNS History
4 records (4 active, 0 former)
●NSns1.cfdns81.com2026-07-15 → 2026-07-15 · 2 obs
● 2026-07-15 15:24:06
●NSns1.ddoss-waf.com2026-07-15 → 2026-07-15 · 2 obs
● 2026-07-15 15:24:06
●NSns2.cfdns81.com2026-07-15 → 2026-07-15 · 2 obs
● 2026-07-15 15:24:06
●NSns2.ddoss-waf.com2026-07-15 → 2026-07-15 · 2 obs
● 2026-07-15 15:24:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| cfdns81.com | ns1.cfdns81.com, ns2.cfdns81.com | 4 records |
✅ Authoritative Response
Server:121.37.230.116
NS records: ns1.cfdns81.com, ns2.cfdns81.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cfdns81.com (unsigned zone)
⏱️ Timing
Total: 3678ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.ddoss-waf.com, ns2.ddoss-waf.com |
| SOA | 1 | ns1.ddoss-waf.com zeus.bb2.com |
📌 Glue Records Collected
Total: 4
In-bailiwick: 4 (ns1.cfdns81.com, ns1.cfdns81.com, ns2.cfdns81.com...)
Analysis
Hierarchy
ns1.cfdns81.com and ns2.cfdns81.com are both subdomains of cfdns81.com.
Name Servers
The authoritative name servers for cfdns81.com are ns1.cfdns81.com, ns2.cfdns81.com, ns1.ddoss-waf.com and ns2.ddoss-waf.com.
cfdns81.com has at least partial name server overlap with other domains, such as yujilin.com, ctainx.net, ythkm.com and two others.
ns1.cfdns5.com, ns2.cfdns5.com and ns1.ucdns4.com — plus 7 other name servers — are commonly paired with these name servers.
Hostnames that resolve to two IP addresses:
ns1.cfdns81.com resolves to two addresses: 47.109.31.80 and 121.37.230.116.
ns2.cfdns81.com resolves to two addresses: 47.109.31.80 and 121.37.230.116.
Hosts with just one IP address:
The hostname ns1.ddoss-waf.com resolves to 47.109.31.80.
The hostname ns2.ddoss-waf.com resolves to 121.37.230.116.
The host names ns1.cfdns81.com, ns2.cfdns81.com and ns1.ddoss-waf.com each resolve to 47.109.31.80.
The host names ns1.cfdns81.com, ns2.cfdns81.com and ns2.ddoss-waf.com each resolve to 121.37.230.116.