ptvu.cn - robtex.com
ptvu.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 156.240.206.75🇭🇰 TCLOUDNET156.240.206.0/24 Tcloudnet, Inc | ||||||
| NS | a8.share-dns.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | a.share-dns.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.53.25🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b.share-dns.net ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | b8.share-dns.net ⚠️ Not in parent delegation | ||||||
| A | 172.64.52.239🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | a.share-dns.commaster@share-dns.com serial=1760690582 | ||||||
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=2035150478 | ||||||
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
●NSa.share-dns.com2026-07-20 → 2026-08-07 · 3 obs
● 2026-07-20 21:28:44
● 2026-08-07 03:02:56
●NSa8.share-dns.com2026-07-20 → 2026-08-07 · 3 obs
● 2026-07-20 21:28:44
● 2026-08-07 03:02:56
●NSb.share-dns.net2026-07-20 → 2026-08-07 · 3 obs
● 2026-07-20 21:28:44
● 2026-08-07 03:02:56
●NSb8.share-dns.net2026-07-20 → 2026-08-07 · 3 obs
● 2026-07-20 21:28:44
● 2026-08-07 03:02:56
○NSns1.silkroadtechnologies.com2015-08-09 → 2016-12-07 · 4 obs
● 2016-12-07 13:36:10
○ 2026-07-20 21:28:44
○ 2026-08-07 03:02:56
○NSns2.silkroadtechnologies.com2015-08-09 → 2016-12-07 · 4 obs
● 2016-12-07 13:36:10
○ 2026-07-20 21:28:44
○ 2026-08-07 03:02:56
○MXmxbiz1.qq.com2015-08-09 → 2016-12-07 · 4 obs
● 2016-12-07 13:36:10
○ 2026-07-20 21:28:44
○ 2026-08-07 03:02:56
○MXmxbiz2.qq.com2015-08-09 → 2016-12-07 · 4 obs
● 2016-12-07 13:36:10
○ 2026-07-20 21:28:44
○ 2026-08-07 03:02:56
●A156.240.206.752026-07-20 → 2026-08-07 · 3 obs
● 2026-07-20 21:28:44
● 2026-08-07 03:02:56
○A61.153.14.1942015-08-09 → 2016-12-07 · 4 obs
● 2016-12-07 13:36:10
○ 2026-07-20 21:28:44
○ 2026-08-07 03:02:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| ptvu.cn | a8.share-dns.com, b8.share-dns.net | - |
✅ Authoritative Response
Server:172.64.52.239
NS records: a8.share-dns.com, b8.share-dns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ptvu.cn (unsigned zone)
⏱️ Timing
Total: 936ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 156.240.206.75 |
| NS | 2 | a.share-dns.com, b.share-dns.net |
| SOA | 1 | a.share-dns.com master.share-dns.com |
Analysis
IP Addresses
ptvu.cn points to a single IP number: 156.240.206.75.
Name Servers
ptvu.cn has four authoritative name servers: a8.share-dns.com, a.share-dns.com, b8.share-dns.net and b.share-dns.net.
ptvu.cn partially shares its NS delegation with several other domains, including 9933524.com, 62852.cc, trex-host.com and two others.
In DNS configurations, these name servers often share authority with a2.share-dns.com, b2.share-dns.net, a1.share-dns.com and 7 other name servers.
a8.share-dns.com and a.share-dns.com each resolve to 172.64.53.25, while b8.share-dns.net and b.share-dns.net each resolve to 172.64.52.239.
a8.share-dns.com and a.share-dns.com each have 172.64.53.25 IP addresses.
b8.share-dns.net and b.share-dns.net each have 172.64.52.239 IP addresses.