hostmaster.knowledge-based.com - robtex.com
hostmaster.knowledge-based.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| PTR | a904c694c05102f30.awsglobalaccelerator.com | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns1.afternic.com ⭐ ⚠️ Not in parent delegation | ||||||
| A | 2603:5:2126::45🇺🇸 GODADDY-DNS2603:5:2120::/44 | ||||||
| PTR | ns1.afternic.com | ||||||
| A | 97.74.98.69🇺🇸 GODADDY-DNS97.74.98.0/23 | ||||||
| PTR | ns1.afternic.com | ||||||
| NS | ns2.afternic.com ⚠️ Not in parent delegation | ||||||
| A | 2603:5:2226::45🇺🇸 GODADDY-DNS2603:5:2220::/44 | ||||||
| PTR | ns2.afternic.com | ||||||
| A | 173.201.66.69🇺🇸 GODADDY-DNS173.201.66.0/23 | ||||||
| PTR | ns2.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1.afternic.comdns@jomax.net serial=1 | ||||||
knowledge-based.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 13.248.169.48🇺🇸 Amazon13.248.160.0/20 | ||||||
| A | 76.223.54.146🇺🇸 Amazon76.223.48.0/20 | ||||||
| NS | ns2.afternic.com ⭐ | ||||||
| NS | ns1.afternic.com | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns2.afternic.comdns@jomax.net serial=1 | ||||||
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
●NSns1.afternic.com2026-03-05 → 2026-03-14 · 2 obs
● 2026-03-14 21:20:46
●NSns2.afternic.com2026-03-05 → 2026-03-14 · 2 obs
● 2026-03-14 21:20:46
●A13.248.169.482026-03-05 → 2026-03-14 · 3 obs
● 2026-03-05 05:21:04
● 2026-03-14 21:20:46
○A207.148.248.1432015-11-19 → 2016-06-22 · 5 obs
● 2015-11-19 08:10:48
● 2016-06-22 07:11:20
○ 2026-03-05 05:21:04
○ 2026-03-14 21:20:46
○A66.151.181.492015-06-19 → 2015-06-19 · 3 obs
○ 2015-11-19 08:10:48
○ 2026-03-14 21:20:46
●A76.223.54.1462026-03-05 → 2026-03-14 · 3 obs
● 2026-03-05 05:21:04
● 2026-03-14 21:20:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| knowledge-based.com | ns1.afternic.com, ns2.afternic.com | 4 records |
✅ Authoritative Response
Server: 97.74.98.69
NS records: ns1.afternic.com, ns2.afternic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowledge-based.com (unsigned zone)
⏱️ Timing
Total: 91ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 76.223.54.146, 13.248.169.48 |
| NS | 2 | ns1.afternic.com, ns2.afternic.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1.afternic.com dns.jomax.net |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns1.afternic.com, ns1.afternic.com, ns2.afternic.com...)
Analysis
IP Addresses
hostmaster.knowledge-based.com resolves to two IPs: 13.248.169.48 and 76.223.54.146.
other host names for instance mx1.assuranceparis.com, grevis.com, brspace.com, scamguide.com and forum.bringyourownbooks.com share IP numbers with hostmaster.knowledge-based.com.
Name Servers
hostmaster.knowledge-based.com is delegated to two name servers: ns1.afternic.com and ns2.afternic.com.
hostmaster.knowledge-based.com shares the same name server setup as other domains, for example (0x736578).videosdownload.com, internetmovil.etb.net, victoryinfo.com, directspray.com and skyrobot.com.
hostmaster.knowledge-based.com at least partially shares name servers with other domains, for instance golddao.com, wopis.com, wzfb.com, grandroses.com and kliento.com.
These name servers are commonly used with verification-d3jclucsp89ganyqbydeny.ns101.verify.hn, verification-df6xaksrcxynprww8hzsaa.ns101.verify.hn and verification-jfnvgpu5wo22omx5sxcqsc.ns101.verify.hn.
Host names with two IP numbers:
ns1.afternic.com points to 2603:5:2126::45 and 97.74.98.69
ns2.afternic.com points to 2603:5:2226::45 and 173.201.66.69