nbuedu.com - robtex.com
nbuedu.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 154.91.251.197🇸🇨 LCS-AS-AP154.91.251.0/24 Cloud Innovation Ltd | ||||||
| NS | a1.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 | b1.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=1743133944 | ||||||
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=1774595137 | ||||||
Same first word
Similar names
DNS History
13 records (5 active, 8 former)
●NSa.share-dns.com2026-02-14 → 2026-03-27 · 3 obs
● 2026-02-14 17:38:10
● 2026-03-27 07:29:00
●NSa1.share-dns.com2026-02-14 → 2026-03-27 · 3 obs
● 2026-02-14 17:38:10
● 2026-03-27 07:29:00
●NSb.share-dns.net2026-02-14 → 2026-03-27 · 3 obs
● 2026-02-14 17:38:10
● 2026-03-27 07:29:00
●NSb1.share-dns.net2026-02-14 → 2026-03-27 · 3 obs
● 2026-02-14 17:38:10
● 2026-03-27 07:29:00
○NSdns13.hichina.com2015-08-08 → 2016-12-22 · 4 obs
● 2016-12-22 21:29:12
○ 2017-10-21 18:02:00
○ 2026-03-27 07:29:00
○NSdns14.hichina.com2015-08-08 → 2016-12-22 · 4 obs
● 2016-12-22 21:29:12
○ 2017-10-21 18:02:00
○ 2026-03-27 07:29:00
○NSf1g1ns1.dnspod.net2017-10-21 → 2017-10-21 · 4 obs
● 2017-10-21 18:02:00
○ 2026-02-14 17:38:10
○ 2026-03-27 07:29:00
○NSf1g1ns2.dnspod.net2017-10-21 → 2017-10-21 · 4 obs
● 2017-10-21 18:02:00
○ 2026-02-14 17:38:10
○ 2026-03-27 07:29:00
○MX211.152.50.2252015-11-03 → 2016-12-22 · 5 obs
● 2015-11-03 23:41:46
● 2016-12-22 21:29:12
○ 2017-10-21 18:02:00
○ 2026-03-27 07:29:00
○MX211.152.50.2252015-08-08 → 2015-08-08 · 3 obs
○ 2015-11-03 23:41:46
○ 2026-03-27 07:29:00
○A104.216.46.1022017-10-21 → 2017-10-21 · 4 obs
● 2017-10-21 18:02:00
○ 2026-02-14 17:38:10
○ 2026-03-27 07:29:00
●A154.91.251.1972026-02-14 → 2026-03-27 · 3 obs
● 2026-02-14 17:38:10
● 2026-03-27 07:29:00
○A222.76.218.792015-08-08 → 2016-12-22 · 4 obs
● 2016-12-22 21:29:12
○ 2017-10-21 18:02:00
○ 2026-03-27 07:29:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, l.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| nbuedu.com | b1.share-dns.net, a1.share-dns.com | 1 record |
✅ Authoritative Response
Server:172.64.53.25
NS records: b1.share-dns.net, a1.share-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for nbuedu.com (unsigned zone)
⏱️ Timing
Total: 298ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 154.91.251.197 |
| NS | 2 | a.share-dns.com, b.share-dns.net |
| SOA | 1 | a.share-dns.com master.share-dns.com |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (a1.share-dns.com)
Analysis
IP Addresses
nbuedu.com points to a single IP: 154.91.251.197.
Name Servers
nbuedu.com's delegation is handled by four name servers: a1.share-dns.com, a.share-dns.com, b1.share-dns.net and b.share-dns.net.
nbuedu.com partially shares name servers with other domains; examples include guoxueer.com, jcd.mobi, tiktokishopbuy.cc, yande.info and tongliangzx.com.
These name servers are commonly used alongside a6.share-dns.com, b6.share-dns.net, a12.share-dns.com, b12.share-dns.net, a5.share-dns.com, b5.share-dns.net, a11.share-dns.com, b11.share-dns.net, a10.share-dns.com and b10.share-dns.net.
Host names sharing a single IP address:
a1.share-dns.com points to: 172.64.53.25.
a.share-dns.com points to: 172.64.53.25.
b1.share-dns.net points to: 172.64.52.239.
b.share-dns.net points to: 172.64.52.239.
Host names pointing to 172.64.53.25: a1.share-dns.com and a.share-dns.com.
Host names pointing to 172.64.52.239: b1.share-dns.net and b.share-dns.net.