knowhowco.com - robtex.com
knowhowco.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=1778557431 | ||||||
Same first word
knowhowco.com |
DNS History
19 records (9 active, 10 former)
○NSdns1.name-services.com2017-01-31 → 2017-01-31 · 3 obs
○ 2020-01-21 14:57:52
○ 2026-05-12 04:00:46
○NSdns2.name-services.com2017-01-31 → 2017-01-31 · 3 obs
○ 2020-01-21 14:57:52
○ 2026-05-12 04:00:46
○NSdns3.name-services.com2017-01-31 → 2017-01-31 · 3 obs
○ 2020-01-21 14:57:52
○ 2026-05-12 04:00:46
○NSdns4.name-services.com2017-01-31 → 2017-01-31 · 3 obs
○ 2020-01-21 14:57:52
○ 2026-05-12 04:00:46
○NSdns5.name-services.com2017-01-31 → 2017-01-31 · 3 obs
○ 2020-01-21 14:57:52
○ 2026-05-12 04:00:46
●NSns-cloud-a1.googledomains.com2026-04-01 → 2026-05-12 · 3 obs
● 2026-04-01 02:11:22
● 2026-05-12 04:00:46
●NSns-cloud-a2.googledomains.com2026-04-01 → 2026-05-12 · 3 obs
● 2026-04-01 02:11:22
● 2026-05-12 04:00:46
●NSns-cloud-a3.googledomains.com2026-04-01 → 2026-05-12 · 3 obs
● 2026-04-01 02:11:22
● 2026-05-12 04:00:46
●NSns-cloud-a4.googledomains.com2026-04-01 → 2026-05-12 · 3 obs
● 2026-04-01 02:11:22
● 2026-05-12 04:00:46
○NSns21.domaincontrol.com2020-01-21 → 2020-01-21 · 4 obs
● 2020-01-21 14:57:52
○ 2026-04-01 02:11:22
○ 2026-05-12 04:00:46
○NSns22.domaincontrol.com2020-01-21 → 2020-01-21 · 4 obs
● 2020-01-21 14:57:52
○ 2026-04-01 02:11:22
○ 2026-05-12 04:00:46
●MXalt1.aspmx.l.google.com2026-04-01 → 2026-05-12 · 3 obs
● 2026-04-01 02:11:22
● 2026-05-12 04:00:46
●MXalt2.aspmx.l.google.com2026-04-01 → 2026-05-12 · 3 obs
● 2026-04-01 02:11:22
● 2026-05-12 04:00:46
●MXalt3.aspmx.l.google.com2026-04-01 → 2026-05-12 · 3 obs
● 2026-04-01 02:11:22
● 2026-05-12 04:00:46
●MXalt4.aspmx.l.google.com2026-04-01 → 2026-05-12 · 3 obs
● 2026-04-01 02:11:22
● 2026-05-12 04:00:46
●MXaspmx.l.google.com2026-04-01 → 2026-05-12 · 3 obs
● 2026-04-01 02:11:22
● 2026-05-12 04:00:46
○MXmail.knowhowco.com2020-01-21 → 2020-01-21 · 3 obs
○ 2026-04-01 02:11:22
○ 2026-05-12 04:00:46
○A107.180.27.1712020-01-21 → 2020-01-21 · 4 obs
● 2020-01-21 14:57:52
○ 2026-04-01 02:11:22
○ 2026-05-12 04:00:46
○A98.124.243.432017-01-31 → 2017-01-31 · 3 obs
○ 2020-01-21 14:57:52
○ 2026-05-12 04:00:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| knowhowco.com | ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com, ns-cloud-a4.googledomains.com | 8 records |
✅ Authoritative Response
Server:216.239.32.106
NS records: ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com, ns-cloud-a4.googledomains.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 2870ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-cloud-a3.googledomains.com, ns-cloud-a4.googledomains.com... |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 1 | v=spf1 include:_spf.google.com ~all |
| SOA | 1 | ns-cloud-a1.googledomains.com cloud-dns- |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns-cloud-a1.googledomains.com, ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com...)
Analysis
Name Servers
knowhowco.com is delegated to four name servers: ns-cloud-a1.googledomains.com, ns-cloud-a2.googledomains.com, ns-cloud-a3.googledomains.com and ns-cloud-a4.googledomains.com.
knowhowco.com at least partially shares name servers with other domains, for instance broadlifting.com, bigequipmentlease.org, swvl.cloud, ecografiaurbana.com and road2ca.net.
Host names with two IP numbers:
ns-cloud-a1.googledomains.com points to 2001:4860:4802:32::6a and 216.239.32.106; ns-cloud-a2.googledomains.com points to 2001:4860:4802:34::6a and 216.239.34.106; ns-cloud-a3.googledomains.com points to 2001:4860:4802:36::6a and 216.239.36.106; ns-cloud-a4.googledomains.com points to 2001:4860:4802:38::6a and 216.239.38.106.
Mail Servers
knowhowco.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.
knowhowco.com shares some mail servers with other domains, at least partially, for instance ns500734.ns500734.ns500693.ns500699.ns500693.ns500734.ns500588.ns500699.ns500588.ns500699.ns500588.ns500699.ns500683.ns500588.ns500683.ns500602.dtrkdll.com, ns500758.ns500758.ns500698.ns500758.ns500758.ns500736.ns500735.ns500698.ns500698.ns500576.ns500652.ns500576.ns500576.trackreceptor.com, ns500731.ns500754.ns500731.ns500671.ns500731.ns500742.ns500671.ns500705.ns500705.ns500671.ns500291.ns500671.ns500649.ns500666.ns500291.ns500131.lustychickser.com, ns500768.ns500758.ns500758.ns500735.ns500736.ns500735.ns500735.ns500735.ns500708.ns500619.trackreceptor.com and ns500768.ns500758.ns500758.ns500758.ns500698.ns500735.ns500735.ns500735.ns500735.ns500698.ns500698.ns500686.ns500686.ns500619.ns500619.trackreceptor.com.
These mail servers are commonly used alongside aspmx2.googlemail.com and aspmx3.googlemail.com.
Host names with two IP numbers:
aspmx.l.google.com points to 2607:f8b0:4023:c0b::1a and 142.251.2.27
alt1.aspmx.l.google.com points to 2800:3f0:4003:c0f::1a and 108.177.123.27
alt2.aspmx.l.google.com points to 2607:f8b0:4023:3003::1a and 172.253.145.26
alt3.aspmx.l.google.com points to 2a00:1450:4009:c0f::1b and 192.178.223.27
alt4.aspmx.l.google.com points to 2a00:1450:400c:c00::1b and 173.194.76.26