refn-tec.com - dns.ninja
refn-tec.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns.vs.263idc.net ⭐ ⚠️ Not in parent delegation | ||||||
| A | 211.100.15.68🇨🇳 CHINA-1211.100.15.0/24 China Telecom Beijing Co. Ltd. | ||||||
| NS | ns.263idc.net ⚠️ Not in zone NS records | ||||||
| A | 211.100.15.68🇨🇳 CHINA-1211.100.15.0/24 China Telecom Beijing Co. Ltd. | ||||||
| NS | nsb.263idc.net ⚠️ Not in zone NS records | ||||||
| NS | nsb.vs.263idc.net ⚠️ Not in parent delegation | ||||||
| A | 211.100.15.85🇨🇳 CHINA-1211.100.15.0/24 China Telecom Beijing Co. Ltd. | ||||||
| PTR | nsb.263idc.net.15.100.211.in-addr.arpa | ||||||
| MX | mxw.263.net ⭐ | ||||||
| A | 143.110.227.31🇺🇸 DIGITALOCEAN143.110.224.0/20 DigitalOcean | ||||||
| A | 164.92.126.242🇺🇸 DIGITALOCEAN164.92.96.0/19 DigitalOcean | ||||||
| MX | mx.263.net(10) | ||||||
| TXT | v=spf1 include:spf.263.net -all | ||||||
| SOA | ns.vs.263idc.netroot@ns.vs.263idc.net serial=17 | ||||||
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=1786341529 | ||||||
Same first word
refn-tec.com |
Similar names
f-center.com |
center-f.jp |
f-center.ru |
cf-enter.com |
f-center.co.jp |
cefet-rn.br |
centre-f.eu |
f-centre.ru |
center-f.com |
center-f.ru |
centre-f.com |
centre-f.net |
entre-fc.com |
centre-f.fr |
DNS History
6 records (6 active, 0 former)
●NSns.263idc.net2026-02-25 → 2026-08-10 · 3 obs
● 2026-02-25 20:36:36
● 2026-08-10 05:59:30
●NSns.vs.263idc.net2017-05-09 → 2026-08-10 · 2 obs
● 2026-08-10 05:59:30
●NSnsb.263idc.net2026-02-25 → 2026-08-10 · 3 obs
● 2026-02-25 20:36:36
● 2026-08-10 05:59:30
●NSnsb.vs.263idc.net2017-05-09 → 2026-08-10 · 2 obs
● 2026-08-10 05:59:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| refn-tec.com | ns.263idc.net, nsb.263idc.net | - |
✅ Authoritative Response
Server:211.100.15.68
NS records: ns.263idc.net, nsb.263idc.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for refn-tec.com (unsigned zone)
⏱️ Timing
Total: 4997ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | nsb.vs.263idc.net, ns.vs.263idc.net |
| MX | 2 | mxw.263.net (pri: 5), mx.263.net (pri: 10) |
| TXT | 1 | v=spf1 include:spf.263.net -all |
| SOA | 1 | ns.vs.263idc.net root.ns.vs.263idc.net |
Analysis
Name Servers
The NS records for refn-tec.com point to four name servers: ns.263idc.net, nsb.263idc.net, ns.vs.263idc.net and nsb.vs.263idc.net.
refn-tec.com shares at least some of its name servers with other domains, including forboth.com, prsskj.com, oak-ind.com and two others.
These name servers are frequently paired with the name servers ns.263idc.com and nsb.263idc.com.
ns.263idc.net, ns.vs.263idc.net and nsb.vs.263idc.net each have a single IP address. ns.263idc.net points to 211.100.15.68, ns.vs.263idc.net also points to 211.100.15.68 and nsb.vs.263idc.net points to 211.100.15.85.
The host names ns.263idc.net and ns.vs.263idc.net both resolve to 211.100.15.68 IP addresses.
Mail Servers
refn-tec.com is served by two mail servers, mx.263.net and mxw.263.net.
Among the domains sharing a mail server setup with refn-tec.com are 01390.com, shengdengled.com, jnjlogis.com and two others.
refn-tec.com has at least some mail servers in common with other domains, such as coretests.cn, guang-xing.com, tus-sound.com and bestechsoft.com.
Host names that have two IP addresses:
mxw.263.net resolves to 143.110.227.31 and 164.92.126.242.