knowledgehub.com - robtex.com
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knowledgehub.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=1771291435 | ||||||
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DNS History
16 records (11 active, 5 former)
●NSns-111.awsdns-13.com2026-02-17 → 2026-02-17 · 3 obs
● 2026-02-17 11:47:26
● 2026-02-17 22:33:46
●NSns-1459.awsdns-54.org2026-02-17 → 2026-02-17 · 3 obs
● 2026-02-17 11:47:26
● 2026-02-17 22:33:46
●NSns-2044.awsdns-63.co.uk2026-02-17 → 2026-02-17 · 3 obs
● 2026-02-17 11:47:26
● 2026-02-17 22:33:46
●NSns-519.awsdns-00.net2026-02-17 → 2026-02-17 · 3 obs
● 2026-02-17 11:47:26
● 2026-02-17 22:33:46
○NSns.rackspace.com2015-06-18 → 2017-07-07 · 4 obs
● 2017-07-07 11:36:52
○ 2026-02-17 11:47:26
○ 2026-02-17 22:33:46
○NSns2.rackspace.com2015-06-18 → 2017-07-07 · 4 obs
● 2017-07-07 11:36:52
○ 2026-02-17 11:47:26
○ 2026-02-17 22:33:46
●MXalt1.aspmx.l.google.com2016-11-08 → 2026-02-17 · 2 obs
● 2026-02-17 22:33:46
●MXalt2.aspmx.l.google.com2016-11-08 → 2026-02-17 · 2 obs
● 2026-02-17 22:33:46
●MXalt3.aspmx.l.google.com2016-11-08 → 2026-02-17 · 2 obs
● 2026-02-17 22:33:46
●MXalt4.aspmx.l.google.com2016-11-08 → 2026-02-17 · 2 obs
● 2026-02-17 22:33:46
●MXaspmx.l.google.com2016-11-08 → 2026-02-17 · 2 obs
● 2026-02-17 22:33:46
○A18.189.12.2262026-02-17 → 2026-02-17 · 2 obs
○ 2026-02-17 22:33:46
○A184.106.91.1572015-06-18 → 2017-07-07 · 4 obs
● 2017-07-07 11:36:52
○ 2026-02-17 11:47:26
○ 2026-02-17 22:33:46
●A3.131.165.1012026-02-17 → 2026-02-17 · 3 obs
● 2026-02-17 11:47:26
● 2026-02-17 22:33:46
●A3.151.147.2222026-02-17 → 2026-02-17 · 3 obs
● 2026-02-17 11:47:26
● 2026-02-17 22:33:46
○A3.20.70.2022026-02-17 → 2026-02-17 · 2 obs
○ 2026-02-17 22:33:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| knowledgehub.com | ns-519.awsdns-00.net, ns-2044.awsdns-63.co.uk, ns-1459.awsdns-54.org | - |
✅ Authoritative Response
Server: 205.251.197.179
NS records: ns-519.awsdns-00.net, ns-2044.awsdns-63.co.uk, ns-1459.awsdns-54.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowledgehub.com (unsigned zone)
⏱️ Timing
Total: 76ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 3.131.165.101, 3.151.147.222 |
| NS | 4 | ns-111.awsdns-13.com, ns-1459.awsdns-54.org... |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 1 | google-site-verification=rp9J6tkEpX_26gg |
| SOA | 1 | ns-111.awsdns-13.com awsdns-hostmaster.a |
AI analysis
knowledgehub.com is a parent of static.knowledgehub.com and www.knowledgehub.com.
knowledgehub.com points to two IP numbers: 3.131.165.101 and 3.151.147.222.
knowledgehub.com is delegated to four name servers: ns-111.awsdns-13.com, ns-519.awsdns-00.net, ns-1459.awsdns-54.org and ns-2044.awsdns-63.co.uk.
knowledgehub.com at least partially shares name servers with other domains, for example d3qbzo9imfqa8d.cloudfront.net, scoutweb.ccrncloud.com, wpcrm.net, santabaseball.com and mailsegment.com.
Name servers ns-212.awsdns-26.com, ns-1774.awsdns-29.co.uk, ns-904.awsdns-49.net, ns-1090.awsdns-08.org, ns-398.awsdns-49.com, ns-1327.awsdns-37.org and ns-1881.awsdns-43.co.uk are commonly used together.
Host names with two IP numbers:
ns-111.awsdns-13.com points to: 2600:9000:5300:6f00::1 and 205.251.192.111
ns-519.awsdns-00.net points to: 2600:9000:5302:700::1 and 205.251.194.7
ns-1459.awsdns-54.org points to: 2600:9000:5305:b300::1 and 205.251.197.179
ns-2044.awsdns-63.co.uk points to: 2600:9000:5307:fc00::1 and 205.251.199.252
knowledgehub.com is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
knowledgehub.com shares at least partially some mail servers with other domains, for instance ns500731.ns500731.ns500671.ns500731.ns500742.ns500704.ns500705.ns500678.ns500688.ns500666.ns500131.lustychickser.com, ns500742.ns500671.ns500731.ns500742.ns500731.ns500671.ns500705.ns500678.ns500671.ns500678.ns500291.tenderladiesbz.com, ns500698.ns500698.ns500759.ns500698.ns500758.ns500698.ns500735.ns500698.ns500735.ns500576.ns500576.ns500619.ns500576.ns500576.ns500576.trackreceptor.com, ns500758.ns500758.ns500698.ns500758.ns500735.ns500698.ns500698.ns500736.ns500708.ns500708.ns500708.ns500576.ns500686.ns500619.trackreceptor.com and ns500734.ns500693.ns500699.ns500699.ns500734.ns500693.ns500693.ns500699.ns500588.ns500699.ns500683.ns500588.ns500588.ns500588.ns500588.dtrkdll.com.
These mail servers are often used with aspmx2.googlemail.com and aspmx3.googlemail.com.
Host names with two IP numbers
Each host name points to two IP numbers:
aspmx.l.google.com points to 2607:f8b0:4004:c19::1b and 172.253.62.27
alt1.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.26
alt2.aspmx.l.google.com points to 2607:f8b0:4001:c70::1a and 192.178.209.26
alt3.aspmx.l.google.com points to 2607:f8b0:4024:c0d::1b and 192.178.152.26
alt4.aspmx.l.google.com points to 2607:f8b0:4023:403::1a and 142.250.96.27