51web.com - robtex.com
51web.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 182.140.244.16🇨🇳 CHINANET-SCIDC-AS-AP182.140.244.0/24 SICHUANIDC province network | ||||||
| NS | ns1.dnsinside.net ⭐ | ||||||
| A | 61.139.126.180🇨🇳 CHINANET-SCIDC-AS-AP61.139.126.0/24 CHINANET SiChuan Telecom Internet Data Center | ||||||
| NS | ns2.dnsinside.net | ||||||
| A | 182.140.142.54🇨🇳 CHINANET-SCIDC-AS-AP182.140.142.0/24 CHINANET SiChuan Telecom Internet Data Center | ||||||
| A | 182.140.244.18🇨🇳 CHINANET-SCIDC-AS-AP182.140.244.0/24 SICHUANIDC province network | ||||||
| MX | mail.51web.com ⭐ | ||||||
| A | 125.65.112.93🇨🇳 CHINANET-BACKBONE125.64.0.0/13 China Telecom Network | ||||||
| PTR | 93.112.65.125.broad.ls.sc.dynamic.163data.com.cn | ||||||
| TXT | v=spf1 a a:mail.51web.com mx:mail.51web.com ipv4:125.65.112.93 ~all | ||||||
| SOA | ns1.dnsinside.nethostmaster@dnsinside.net serial=1083128429 | ||||||
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=1771291435 | ||||||
Subdomains
Same first word
Similar names
web51.ru |
web51.com.es |
web51.pl |
web15.de |
web15.ru |
web51.com |
web15.cn |
web51.altervista.org |
web15.fr |
web51.de |
web51.net |
web15.com |
web15.xyz |
web15.be |
15web.com |
15web.ru |
DNS History
7 records (4 active, 3 former)
●NSns1.dnsinside.net2015-11-14 → 2026-03-03 · 5 obs
● 2018-12-12 03:34:38
○ 2018-12-17 03:17:08
● 2021-03-02 09:50:24
● 2026-03-03 13:51:10
●NSns2.dnsinside.net2015-11-14 → 2026-03-03 · 2 obs
● 2026-03-03 13:51:10
●MXmail.51web.com2015-08-11 → 2026-03-03 · 2 obs
● 2026-03-03 13:51:10
○A125.65.112.262016-01-29 → 2016-12-29 · 5 obs
● 2016-01-29 06:25:36
● 2016-12-29 13:55:04
○ 2018-12-12 03:34:38
○ 2026-03-03 13:51:10
○A125.65.46.1412015-08-11 → 2015-12-28 · 4 obs
● 2015-12-28 13:10:04
○ 2016-01-29 06:25:36
○ 2026-03-03 13:51:10
●A182.140.244.162021-03-02 → 2026-03-03 · 3 obs
● 2021-03-02 09:50:24
● 2026-03-03 13:51:10
○CNAMEcdn.51web.com2015-08-11 → 2018-12-17 · 7 obs
○ 2015-11-14 11:46:58
○ 2016-12-29 13:55:04
● 2018-12-12 03:34:38
● 2018-12-17 03:17:08
○ 2021-03-02 09:50:24
○ 2026-03-03 13:51:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, k.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net... | - |
| 51web.com | ns1.dnsinside.net, ns2.dnsinside.net | - |
✅ Authoritative Response
Server: 61.139.126.180
NS records: ns1.dnsinside.net, ns2.dnsinside.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51web.com (unsigned zone)
⏱️ Timing
Total: 3273ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 182.140.244.16 |
| NS | 2 | ns1.dnsinside.net, ns2.dnsinside.net |
| MX | 1 | mail.51web.com (pri: 10) |
| TXT | 1 | v=spf1 a a:mail.51web.com mx:mail.51web. |
| SOA | 1 | ns1.dnsinside.net hostmaster.dnsinside.n |
Analysis
Hierarchy
51web.com is the parent of agent.51web.com, client.51web.com, www.51web.com, conpanel.51web.com, mail.51web.com and a few other host names.
IP Addresses
51web.com resolves to one IP number: 182.140.244.16.
Other host names, for instance www.51web.com, share IP numbers with 51web.com.
Name Servers
51web.com is delegated to two name servers ns1.dnsinside.net and ns2.dnsinside.net.
51web.com shares the same name server setup as other domains, for instance 223.254.103.in-addr.arpa, dnsinside.net, 51web.net, 51web.hk and scsjlx.com.
Two IP numbers for a host: ns2.dnsinside.net points to 182.140.142.54 and 182.140.244.18.
One IP number for a host: ns1.dnsinside.net points to 61.139.126.180.
Mail Servers
51web.com is handled by a single mail server, mail.51web.com.
mail.51web.com resolves to IP 125.65.112.93.