cortex.io - robtex.com
cortex.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=1776986395 | ||||||
rank #2344 in the tld
📈 Tranco rank: #376,734
Subdomains
www.cortex.io |
Same first word
Similar names
DNS History
16 records (10 active, 6 former)
●NSns-cloud-d1.googledomains.com2026-02-18 → 2026-04-23 · 3 obs
● 2026-02-18 07:45:00
● 2026-04-23 23:26:36
●NSns-cloud-d2.googledomains.com2026-02-18 → 2026-04-23 · 3 obs
● 2026-02-18 07:45:00
● 2026-04-23 23:26:36
●NSns-cloud-d3.googledomains.com2026-02-18 → 2026-04-23 · 3 obs
● 2026-02-18 07:45:00
● 2026-04-23 23:26:36
●NSns-cloud-d4.googledomains.com2026-02-18 → 2026-04-23 · 3 obs
● 2026-02-18 07:45:00
● 2026-04-23 23:26:36
○NSns1.iwantmyname.net2018-11-13 → 2018-11-13 · 3 obs
○ 2026-02-18 07:45:00
○ 2026-04-23 23:26:36
○NSns2.iwantmyname.net2018-11-13 → 2018-11-13 · 3 obs
○ 2026-02-18 07:45:00
○ 2026-04-23 23:26:36
○NSns3.iwantmyname.net2018-11-13 → 2018-11-13 · 3 obs
○ 2026-02-18 07:45:00
○ 2026-04-23 23:26:36
○NSns4.iwantmyname.net2018-11-13 → 2018-11-13 · 3 obs
○ 2026-02-18 07:45:00
○ 2026-04-23 23:26:36
●MXalt1.aspmx.l.google.com2026-02-18 → 2026-04-23 · 2 obs
● 2026-04-23 23:26:36
●MXalt2.aspmx.l.google.com2026-02-18 → 2026-04-23 · 2 obs
● 2026-04-23 23:26:36
●MXalt3.aspmx.l.google.com2026-02-18 → 2026-04-23 · 2 obs
● 2026-04-23 23:26:36
●MXalt4.aspmx.l.google.com2026-02-18 → 2026-04-23 · 2 obs
● 2026-04-23 23:26:36
●MXaspmx.l.google.com2026-02-18 → 2026-04-23 · 2 obs
● 2026-04-23 23:26:36
○A192.30.252.1532018-11-13 → 2018-11-13 · 3 obs
○ 2026-02-18 07:45:00
○ 2026-04-23 23:26:36
○A192.30.252.1542018-11-13 → 2018-11-13 · 3 obs
○ 2026-02-18 07:45:00
○ 2026-04-23 23:26:36
●A76.76.21.212026-02-18 → 2026-04-23 · 3 obs
● 2026-02-18 07:45:00
● 2026-04-23 23:26:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| cortex.io | ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d4.googledomains.com, ns-cloud-d3.googledomains.com | - |
✅ Authoritative Response
Server:216.239.34.109
NS records: ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d4.googledomains.com, ns-cloud-d3.googledomains.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 735ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 76.76.21.21 |
| NS | 4 | ns-cloud-d3.googledomains.com, ns-cloud-d1.googledomains.com... |
| MX | 5 | alt2.aspmx.l.google.com (pri: 5), alt3.aspmx.l.google.com (pri: 10)... |
| TXT | 14 | include:mktomail.com, brevo-code:9742d4685399e7a4edc0c8c21f543... |
| SOA | 1 | ns-cloud-d1.googledomains.com cloud-dns- |
Analysis
Hierarchy
www.cortex.io has cortex.io as its parent.
IP Addresses
cortex.io maps to IP address 76.76.21.21.
Other host names, for instance cardrona.com, freshwokoh.com, pandabrand.net, binogi.com and expressable.com share IP numbers with cortex.io.
Name Servers
cortex.io is delegated to four name servers: ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com and ns-cloud-d4.googledomains.com.
cortex.io at least partially shares name servers with other domains such as djcoates.com, barquitodepapel.com, stretchfreight.com, studiooakcliff.com and sun-swipe.com.
Host names with two IP numbers:
ns-cloud-d1.googledomains.com points to 2001:4860:4802:32::6d and 216.239.32.109
ns-cloud-d2.googledomains.com points to 2001:4860:4802:34::6d and 216.239.34.109
ns-cloud-d3.googledomains.com points to 2001:4860:4802:36::6d and 216.239.36.109
ns-cloud-d4.googledomains.com points to 2001:4860:4802:38::6d and 216.239.38.109
Mail Servers
cortex.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.
cortex.io shares mail servers with other domains at least in part, for instance ns500693.ns500693.ns500693.ns500734.ns500734.ns500699.ns500699.ns500683.ns500693.ns500699.ns500632.ns500110.dtrkdll.com, dgn.fish, ns500758.ns500758.ns500698.ns500759.ns500698.ns500736.ns500735.ns500698.ns500736.ns500708.ns500576.ns500576.ns500619.trackreceptor.com, ns500765.ns500693.ns500734.ns500699.ns500734.ns500699.ns500699.ns500588.ns500699.ns500683.ns500693.ns500588.ns500632.ns500632.ns500588.ns500588.ns500588.dtrkdll.com and ns500758.ns500698.ns500698.ns500698.ns500736.ns500736.ns500698.ns500698.ns500736.ns500736.ns500735.ns500619.ns500619.ns500576.ns500619.trackreceptor.com.
These mail servers are often used together with aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Two IPs per host name:
aspmx.l.google.com points to: 2607:f8b0:4023:c06::1a and 142.250.101.26
alt1.aspmx.l.google.com points to: 2800:3f0:4003:c0f::1b and 108.177.123.26
alt2.aspmx.l.google.com points to: 2a00:1450:400b:c02::1b and 172.253.116.26
alt3.aspmx.l.google.com points to: 2a00:1450:4009:c0f::1a and 192.178.223.27
alt4.aspmx.l.google.com points to: 2a00:1450:400c:c00::1a and 173.194.76.26
Pattern: left IDs ascend by 9 (12, 21, 30, 39, 48); each pair of targets ascend by 9 (15/18, 24/27, 33/36, 42/45, 51/54)