sfbku.com - robtex.com
sfbku.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-550.awsdns-04.net ⭐ | ||||||
| A | 2600:9000:5302:2600::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-550.awsdns-04.net | ||||||
| A | 205.251.194.38🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-550.awsdns-04.net | ||||||
| NS | ns-1102.awsdns-09.org | ||||||
| A | 2600:9000:5304:4e00::1🇺🇸 Amazon2600:9000:5304::/48 - CloudFront | ||||||
| PTR | ns-1102.awsdns-09.org | ||||||
| A | 205.251.196.78🇺🇸 Amazon205.251.196.0/24 prefix | ||||||
| PTR | ns-1102.awsdns-09.org | ||||||
| NS | ns-1582.awsdns-05.co.uk | ||||||
| A | 2600:9000:5306:2e00::1🇺🇸 Amazon2600:9000:5306::/48 - CloudFront | ||||||
| PTR | ns-1582.awsdns-05.co.uk | ||||||
| A | 205.251.198.46🇺🇸 Amazon205.251.198.0/24 prefix | ||||||
| PTR | ns-1582.awsdns-05.co.uk | ||||||
| NS | ns-485.awsdns-60.com | ||||||
| A | 2600:9000:5301:e500::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-485.awsdns-60.com | ||||||
| A | 205.251.193.229🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-485.awsdns-60.com | ||||||
| SOA | ns-550.awsdns-04.netawsdns-hostmaster@amazon.com serial=1 | ||||||
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=1785861639 | ||||||
Same first word
sfbku.com |
Similar names
fkbus.com |
bfsuk.com |
fbsuk.com |
bfsuk.co.uk |
sfbuk.com |
fsbuk.ru |
fsbuk.com |
fbsuk.net |
kbfus.org |
kbfus.com |
ukfbs.com |
ksubf.com |
DNS History
6 records (4 active, 2 former)
○NSdns10.hichina.com2016-12-15 → 2017-07-09 · 4 obs
● 2017-07-09 20:34:18
○ 2026-06-19 20:00:04
○ 2026-08-04 16:42:42
○NSdns9.hichina.com2016-12-15 → 2017-07-09 · 4 obs
● 2017-07-09 20:34:18
○ 2026-06-19 20:00:04
○ 2026-08-04 16:42:42
●NSns-1102.awsdns-09.org2026-06-19 → 2026-08-04 · 3 obs
● 2026-06-19 20:00:04
● 2026-08-04 16:42:42
●NSns-1582.awsdns-05.co.uk2026-06-19 → 2026-08-04 · 3 obs
● 2026-06-19 20:00:04
● 2026-08-04 16:42:42
●NSns-485.awsdns-60.com2026-06-19 → 2026-08-04 · 3 obs
● 2026-06-19 20:00:04
● 2026-08-04 16:42:42
●NSns-550.awsdns-04.net2026-06-19 → 2026-08-04 · 3 obs
● 2026-06-19 20:00:04
● 2026-08-04 16:42:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sfbku.com | ns-550.awsdns-04.net, ns-485.awsdns-60.com, ns-1582.awsdns-05.co.uk, ns-1102.awsdns-09.org | 2 records |
✅ Authoritative Response
Server:205.251.198.46
NS records: ns-550.awsdns-04.net, ns-485.awsdns-60.com, ns-1582.awsdns-05.co.uk, ns-1102.awsdns-09.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sfbku.com (unsigned zone)
⏱️ Timing
Total: 379ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1102.awsdns-09.org, ns-1582.awsdns-05.co.uk... |
| SOA | 1 | ns-550.awsdns-04.net awsdns-hostmaster.a |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-485.awsdns-60.com, ns-485.awsdns-60.com)
Analysis
Name Servers
The NS records for sfbku.com point to four name servers: ns-485.awsdns-60.com, ns-550.awsdns-04.net, ns-1102.awsdns-09.org and ns-1582.awsdns-05.co.uk.
At least some of sfbku.com's name servers are shared with other domains, for example d1e2kq1i6pwuuf.cloudfront.net, phillipnova.com.sg, yamada.awsapps.com and two more.
Four hostnames, each resolving to a pair of IP addresses: ns-485.awsdns-60.com directs to 205.251.193.229 and 2600:9000:5301:e500::1; ns-550.awsdns-04.net directs to 205.251.194.38 and 2600:9000:5302:2600::1; ns-1102.awsdns-09.org directs to 205.251.196.78 and 2600:9000:5304:4e00::1; ns-1582.awsdns-05.co.uk directs to 205.251.198.46 and 2600:9000:5306:2e00::1.