51sub.net - robtex.com
51sub.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 8.216.132.243🇸🇬 Alibaba-Cloud8.216.128.0/18 Alibaba.com Singapore E-Commerce Private Limited 8 Shenton Way, 45-01 AXA Tower, Singapore 068811 | ||||||
| A | 47.76.97.131🇺🇸 Alibaba-Cloud47.76.0.0/17 Proxy-registered route object | ||||||
| NS | isla.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a77🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c077🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2077🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| A | 108.162.192.119🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| A | 172.64.32.119🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| A | 173.245.58.119🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | isla.ns.cloudflare.com | ||||||
| NS | marty.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bcc🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marty.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1cc🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | marty.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21cc🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | marty.ns.cloudflare.com | ||||||
| A | 108.162.193.204🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marty.ns.cloudflare.com | ||||||
| A | 172.64.33.204🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marty.ns.cloudflare.com | ||||||
| A | 173.245.59.204🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | marty.ns.cloudflare.com | ||||||
| SOA | isla.ns.cloudflare.comdns@cloudflare.com serial=2398565057 | ||||||
net
| 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=1771291465 | ||||||
Same first word
51sub.net |
DNS History
4 records (4 active, 0 former)
●NSisla.ns.cloudflare.com2026-02-17 → 2026-03-23 · 2 obs
● 2026-03-23 03:09:08
●NSmarty.ns.cloudflare.com2026-02-17 → 2026-03-23 · 2 obs
● 2026-03-23 03:09:08
●A47.76.97.1312026-02-17 → 2026-03-23 · 2 obs
● 2026-03-23 03:09:08
●A8.216.132.2432026-02-17 → 2026-03-23 · 2 obs
● 2026-03-23 03:09:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | m.gtld-servers.net, f.gtld-servers.net, j.gtld-servers.net, b.gtld-servers.net... | - |
| 51sub.net | isla.ns.cloudflare.com, marty.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.204
NS records: isla.ns.cloudflare.com, marty.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51sub.net (unsigned zone)
⏱️ Timing
Total: 1174ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 47.76.97.131, 8.216.132.243 |
| NS | 2 | isla.ns.cloudflare.com, marty.ns.cloudflare.com |
| SOA | 1 | isla.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
51sub.net points to two IP numbers: 8.216.132.243 and 47.76.97.131.
Other host names, for instance zenith.online.balancingcdn.com, share IP numbers with 51sub.net.
Name Servers
51sub.net is delegated to two name servers: isla.ns.cloudflare.com and marty.ns.cloudflare.com.
51sub.net uses the same name server setup as other domains, for instance kunnen.tech, aacelearning.org.uk, humphreyperkins.leics.sch.uk, wardscatering.co.uk and iticket.rs.
51sub.net shares name servers with other domains at least partially, for instance ysxiangyue.com, andapps.co.uk, tsm-makassar.com, event-creative.ru and shopnewwaist.com.
these name servers are often used together with the name servers melissa.ns.cloudflare.com.
Host names with six IP numbers: isla.ns.cloudflare.com points to 2606:4700:50::adf5:3a77, 2803:f800:50::6ca2:c077, 2a06:98c1:50::ac40:2077, 108.162.192.119, 172.64.32.119 and 173.245.58.119; marty.ns.cloudflare.com points to 2606:4700:58::adf5:3bcc, 2803:f800:50::6ca2:c1cc, 2a06:98c1:50::ac40:21cc, 108.162.193.204, 172.64.33.204 and 173.245.59.204.