kolva.cn - robtex.com
kolva.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns1.ondns.cn ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.ondns.cn ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
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=2035161290 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1.julydns.com2026-08-08 → 2026-08-10 · 2 obs
● 2026-08-10 01:09:48
●NSns2.julydns.com2026-08-08 → 2026-08-10 · 2 obs
● 2026-08-10 01:09:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| kolva.cn | ns1.ondns.cn, ns2.ondns.cn | - |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.ondns.cn, ns2.ondns.cn
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kolva.cn (unsigned zone)
⏱️ Timing
Total: 1392ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
Analysis
Name Servers
kolva.cn has four authoritative name servers: ns1.ondns.cn, ns2.ondns.cn, ns1.julydns.com and ns2.julydns.com.
The name servers of kolva.cn overlap at least partially with those of other domains — among them zhnac.com, eastmountyxz.com, srdk.com.cn and two more.
These name servers commonly co-occur with the name servers ns1.judns.com, ns2.judns.com, ns1.onclouddns.com and ns2.onclouddns.com.
ns1.ondns.cn and ns2.ondns.cn each resolve to 162.159.27.251, while ns1.julydns.com and ns2.julydns.com each resolve to 162.159.48.223.
ns1.ondns.cn along with ns2.ondns.cn each resolve to 162.159.27.251 IP addresses.
ns1.julydns.com along with ns2.julydns.com each resolve to 162.159.48.223 IP addresses.