52pdf.cn - robtex.com
52pdf.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:40fc🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::ac43:8a7f🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.64.252Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.138.127🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | ajay.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b38🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c138🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2138🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 108.162.193.56🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 172.64.33.56🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 173.245.59.56🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| NS | olivia.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:26dd🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2dd🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22dd🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 108.162.194.221🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 162.159.38.221Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 172.64.34.221🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.64.252, 172.67.138.127 | ||||||
| IPv6 | 2606:4700:3033::6815:40fc, 2606:4700:3034::ac43:8a7f | ||||||
| SOA | ajay.ns.cloudflare.comdns@cloudflare.com serial=2399864901 | ||||||
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=2034582967 | ||||||
Same first word
52pdf.cn |
DNS History
9 records (6 active, 3 former)
●NSajay.ns.cloudflare.com2026-02-24 → 2026-03-24 · 3 obs
● 2026-02-24 14:59:40
● 2026-03-24 20:35:18
○NSdns10.hichina.com2018-05-15 → 2018-05-15 · 3 obs
○ 2026-02-24 14:59:40
○ 2026-03-24 20:35:18
○NSdns9.hichina.com2018-05-15 → 2018-05-15 · 3 obs
○ 2026-02-24 14:59:40
○ 2026-03-24 20:35:18
●NSolivia.ns.cloudflare.com2026-02-24 → 2026-03-24 · 3 obs
● 2026-02-24 14:59:40
● 2026-03-24 20:35:18
●A104.21.64.2522026-02-24 → 2026-03-24 · 3 obs
● 2026-02-24 14:59:40
● 2026-03-24 20:35:18
○A113.10.244.792018-05-15 → 2018-05-15 · 3 obs
○ 2026-02-24 14:59:40
○ 2026-03-24 20:35:18
●A172.67.138.1272026-02-24 → 2026-03-24 · 3 obs
● 2026-02-24 14:59:40
● 2026-03-24 20:35:18
●A2606:4700:3033::6815:40fc2026-02-24 → 2026-03-24 · 3 obs
● 2026-02-24 14:59:40
● 2026-03-24 20:35:18
●A2606:4700:3034::ac43:8a7f2026-02-24 → 2026-03-24 · 3 obs
● 2026-02-24 14:59:40
● 2026-03-24 20:35:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn... | - |
| 52pdf.cn | ajay.ns.cloudflare.com, olivia.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.34.221
NS records: ajay.ns.cloudflare.com, olivia.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 52pdf.cn (unsigned zone)
⏱️ Timing
Total: 1014ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.64.252, 172.67.138.127 |
| AAAA | 2 | 2606:4700:3034::ac43:8a7f, 2606:4700:3033::6815:40fc |
| NS | 2 | ajay.ns.cloudflare.com, olivia.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | ajay.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
52pdf.cn points to four IP numbers: 2606:4700:3033::6815:40fc, 2606:4700:3034::ac43:8a7f, 104.21.64.252 and 172.67.138.127.
Other host names, for instance www.musbooks.ru, theawkwardturtle.com, sp-code.com, torrentbox.net and alnejar.com share IP numbers with 52pdf.cn.
Name Servers
Delegation for 52pdf.cn rests with two name servers, ajay.ns.cloudflare.com and olivia.ns.cloudflare.com.
52pdf.cn shares the same name server setup as other domains, including ftoi.cn, 101548.cn, lfjmx.cn, dg55you.com and ne93.cn.
52pdf.cn at least partially shares name servers with other domains, for instance azofconsulting.com, soniahawkingglass.com, 4007105998.org, sindycollectorsclub.com and niqzmiu.xyz.
These name servers are commonly used with peyton.ns.cloudflare.com and paityn.ns.cloudflare.com.
Host names with six IP numbers: ajay.ns.cloudflare.com points to: 2606:4700:58::adf5:3b38, 2803:f800:50::6ca2:c138, 2a06:98c1:50::ac40:2138, 108.162.193.56, 172.64.33.56 and 173.245.59.56. olivia.ns.cloudflare.com points to: 2606:4700:50::a29f:26dd, 2803:f800:50::6ca2:c2dd, 2a06:98c1:50::ac40:22dd, 108.162.194.221, 162.159.38.221 and 172.64.34.221.