20douban.com - robtex.com
20douban.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | pns101.cloudns.net ⭐ | ||||||
| A | 2a06:fb00:1::1:99🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS | ||||||
| PTR | pns101.cloudns.net | ||||||
| A | 185.136.96.99🇺🇸 CLOUDNSNET185.136.96.0/24 Cloud DNS Ltd | ||||||
| PTR | pns101.cloudns.net | ||||||
| NS | pns102.cloudns.net | ||||||
| A | 2a06:fb00:1::2:99🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS | ||||||
| PTR | pns102.cloudns.net | ||||||
| A | 185.136.97.99CLOUDNSNET185.136.97.0/24 Cloud DNS Ltd | ||||||
| PTR | pns102.cloudns.net | ||||||
| NS | pns103.cloudns.net | ||||||
| A | 2a06:fb00:1::3:99🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS | ||||||
| PTR | pns103.cloudns.net | ||||||
| A | 185.136.98.99🇺🇸 CLOUDNSNET185.136.98.0/24 Cloud DNS Ltd | ||||||
| PTR | pns103.cloudns.net | ||||||
| NS | pns104.cloudns.net | ||||||
| A | 2a06:fb00:1::4:99🇧🇬 CLOUDNSNET2a06:fb00:1::/48 ClouDNS | ||||||
| PTR | pns104.cloudns.net | ||||||
| A | 185.136.99.99CLOUDNSNET185.136.99.0/24 Cloud DNS Ltd | ||||||
| PTR | pns104.cloudns.net | ||||||
| SOA | pns101.cloudns.netsupport@cloudns.net 2026-02-24 #2 | ||||||
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=1775966497 | ||||||
Same first word
20douban.com |
DNS History
4 records (4 active, 0 former)
●NSpns101.cloudns.net2026-02-20 → 2026-04-12 · 2 obs
● 2026-04-12 04:09:12
●NSpns102.cloudns.net2026-02-20 → 2026-04-12 · 2 obs
● 2026-04-12 04:09:12
●NSpns103.cloudns.net2026-02-20 → 2026-04-12 · 2 obs
● 2026-04-12 04:09:12
●NSpns104.cloudns.net2026-02-20 → 2026-04-12 · 2 obs
● 2026-04-12 04:09:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, m.gtld-servers.net, e.gtld-servers.net, c.gtld-servers.net... | - |
| 20douban.com | pns102.cloudns.net, pns101.cloudns.net, pns103.cloudns.net, pns104.cloudns.net | - |
✅ Authoritative Response
Server:185.136.99.99
NS records: pns102.cloudns.net, pns101.cloudns.net, pns103.cloudns.net, pns104.cloudns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 20douban.com (unsigned zone)
⏱️ Timing
Total: 385ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | pns104.cloudns.net, pns103.cloudns.net... |
| SOA | 1 | pns101.cloudns.net support.cloudns.net |
Analysis
Name Servers
20douban.com is delegated to four name servers: pns101.cloudns.net, pns102.cloudns.net, pns103.cloudns.net and pns104.cloudns.net.
20douban.com at least partially shares name servers with other domains, for instance linuxsecurity.org, stream(0x706f726e).li, i.tj, lvkingclub.com and sep.boletinexclusivo.com.
these name servers are often used together with ns101.cloudns.net, ns102.cloudns.net, ns104.cloudns.net and ns103.cloudns.net.
Host names with two IP numbers:
pns101.cloudns.net points to 2a06:fb00:1::1:99 and 185.136.96.99; pns102.cloudns.net points to 2a06:fb00:1::2:99 and 185.136.97.99; pns103.cloudns.net points to 2a06:fb00:1::3:99 and 185.136.98.99; pns104.cloudns.net points to 2a06:fb00:1::4:99 and 185.136.99.99.