knowfirst.io - robtex.com
knowfirst.io
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ 🔒 | ||||||
| NS | a2.nic.io 🔒 | ||||||
| NS | b0.nic.io 🔒 | ||||||
| NS | c0.nic.io 🔒 | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1771291657 | ||||||
Subdomains
api.knowfirst.io |
Same first word
Similar names
DNS History
10 records (10 active, 0 former)
●NSns-1060.awsdns-04.org2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 15:47:26
●NSns-162.awsdns-20.com2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 15:47:26
●NSns-1937.awsdns-50.co.uk2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 15:47:26
●NSns-760.awsdns-31.net2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 15:47:26
●MXalt1.aspmx.l.google.com2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 15:47:26
●MXalt2.aspmx.l.google.com2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 15:47:26
●MXalt3.aspmx.l.google.com2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 15:47:26
●MXalt4.aspmx.l.google.com2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 15:47:26
●MXaspmx.l.google.com2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 15:47:26
●A3.105.225.222026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 15:47:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| knowfirst.io | ns-162.awsdns-20.com, ns-1060.awsdns-04.org, ns-760.awsdns-31.net, ns-1937.awsdns-50.co.uk | - |
✅ Authoritative Response
Server: 205.251.192.162
NS records: ns-162.awsdns-20.com, ns-1060.awsdns-04.org, ns-760.awsdns-31.net, ns-1937.awsdns-50.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for knowfirst.io (unsigned zone)
⏱️ Timing
Total: 486ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 3.105.225.22 |
| NS | 4 | ns-1060.awsdns-04.org, ns-162.awsdns-20.com... |
| MX | 5 | aspmx.l.google.com (pri: 1), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 5 | Toyin - Yoast SEO, detectify-verification=6d3cab2b4d54e0afd... |
| SOA | 1 | ns-1937.awsdns-50.co.uk awsdns-hostmaste |
Analysis
Hierarchy
The parent of api.knowfirst.io is knowfirst.io.
IP Addresses
knowfirst.io points to a single IP address: 3.105.225.22.
Name Servers
knowfirst.io is delegated to four name servers: ns-162.awsdns-20.com, ns-760.awsdns-31.net, ns-1060.awsdns-04.org and ns-1937.awsdns-50.co.uk.
knowfirst.io at least partially shares name servers with other domains, for example sharefile-webdav.com, mylocalpitch.com, qualitycadillac.com, orangecountyobgyn.com and where.place.
these name servers commonly pair with ns21.didomains.com, ns22.didomains.com, ns21.didomains.net and ns22.didomains.net.
Host names with two IP numbers:
ns-162.awsdns-20.com points to: 2600:9000:5300:a200::1 and 205.251.192.162
ns-760.awsdns-31.net points to: 2600:9000:5302:f800::1 and 205.251.194.248
ns-1060.awsdns-04.org points to: 2600:9000:5304:2400::1 and 205.251.196.36
ns-1937.awsdns-50.co.uk points to: 2600:9000:5307:9100::1 and 205.251.199.145
Mail Servers
knowfirst.io 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.
knowfirst.io shares at least partially some mail servers with other domains, for instance fyxit.net, lrcarquitectura.com, difatours.com, ns500699.ns500734.ns500734.ns500699.ns500699.ns500734.ns500693.ns500588.ns500683.ns500683.ns500632.ns500578.ns500110.dtrkdll.com and ns500758.ns500758.ns500759.ns500735.ns500736.ns500735.ns500736.ns500698.ns500698.ns500576.ns500576.ns500708.ns500652.ns500619.ns500576.trackreceptor.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