knowledgebuilding.com - dns.ninja
knowledgebuilding.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 207.148.248.143🇺🇸 EIG-29873207.148.248.0/24 | ||||||
| NS | ns.buydomains.com ⚠️ Not in zone NS records | ||||||
| A | 52.20.26.87🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix | ||||||
| PTR | ec2-52-20-26-87.compute-1.amazonaws.com | ||||||
| NS | this-domain-for-sale.com ⚠️ Not in zone NS records | ||||||
| A | 52.20.26.87🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix | ||||||
| PTR | ec2-52-20-26-87.compute-1.amazonaws.com | ||||||
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=1784822882 | ||||||
Same first word
knowledgebuilding.com |
Similar names
DNS History
6 records (3 active, 3 former)
●NSns.buydomains.com2015-10-15 → 2026-07-23 · 2 obs
● 2026-07-23 16:17:30
●NSthis-domain-for-sale.com2026-02-18 → 2026-07-23 · 3 obs
● 2026-02-18 05:04:22
● 2026-07-23 16:17:30
○A141.8.225.1242015-12-17 → 2016-08-12 · 5 obs
● 2015-12-17 09:32:40
● 2016-08-12 00:56:32
○ 2017-04-02 10:07:54
○ 2026-07-23 16:17:30
●A207.148.248.1432017-04-02 → 2026-07-23 · 3 obs
● 2017-04-02 10:07:54
● 2026-07-23 16:17:30
○A50.63.202.1042015-10-15 → 2015-10-15 · 4 obs
● 2015-10-15 07:10:16
○ 2015-12-17 09:32:40
○ 2026-07-23 16:17:30
○A66.151.181.492015-05-05 → 2015-05-05 · 3 obs
○ 2015-10-15 07:10:16
○ 2026-07-23 16:17:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net... | - |
| knowledgebuilding.com | ns.buydomains.com, this-domain-for-sale.com | 2 records |
✅ Authoritative Response
Server:52.20.26.87
NS records: ns.buydomains.com, this-domain-for-sale.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowledgebuilding.com (unsigned zone)
⏱️ Timing
Total: 3075ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 207.148.248.143 |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.buydomains.com, this-domain-for-sale.com)
Analysis
IP Addresses
knowledgebuilding.com points to a single IP number: 207.148.248.143.
Additional host names — perfectpaths.com, comparefast.com, standardbeauty.com and two others — share IP numbers with knowledgebuilding.com.
Name Servers
The NS records for knowledgebuilding.com delegate to this-domain-for-sale.com and ns.buydomains.com.
knowledgebuilding.com shares its name server setup with other domains, including modelgear.com, electricdiesel.com, comicals.com and two others.
knowledgebuilding.com and other domains like glotu.com share at least a portion of their name servers.
Each of this-domain-for-sale.com and ns.buydomains.com points to exactly one IP address: 52.20.26.87.
this-domain-for-sale.com and ns.buydomains.com each have 52.20.26.87 IP addresses.