`link.codexcore.ca`

CNAME	`track.smtp2go.net`
DNSSEC	⚠️ Not signed
A	170.187.131.209^{🇺🇸 AKAMAI-LINODE-AP170.187.131.0/24 Akamai Technologies}
		PTR	`170-187-131-209.ip.linodeusercontent.com`
A	185.3.93.228^{🇬🇧 AKAMAI-LINODE-AP185.3.92.0/22 Akamai Technologies}
MX	`track.smtp2go.net` ⭐
		A	170.187.131.209^{🇺🇸 AKAMAI-LINODE-AP170.187.131.0/24 Akamai Technologies}
			PTR	`170-187-131-209.ip.linodeusercontent.com`
		A	185.3.93.228^{🇬🇧 AKAMAI-LINODE-AP185.3.92.0/22 Akamai Technologies}
			PTR	`185-3-93-228.ip.linodeusercontent.com`
TXT	`v=spf1 include:spf.smtp2go.com -all`

`codexcore.ca`

DNSSEC	⚠️ Not signed
A	2606:4700:3034::ac43:826a^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:85d^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.8.93^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.130.106^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cris.ns.cloudflare.com` ⭐
NS	`ollie.ns.cloudflare.com`
MX	`mail.protonmail.ch` ⭐
MX	`mailsec.protonmail.ch`⁽²⁰⁾
TXT	`protonmail-verification=af7992654f8527bc6e8f13d8bbdc6d9250dbd5f6`
TXT	`v=spf1 include:_spf.protonmail.ch ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.8.93, 172.67.130.106
		IPv6 hints	2606:4700:3034::ac43:826a, 2606:4700:3035::6815:85d
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=92, name=cloudflare-ech.com
SOA	`cris.ns.cloudflare.com`dns@cloudflare.com serial=2411775262

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DNS History

1 record (1 active, 0 former)

●CNAMEtrack.smtp2go.net2026-07-17 → 2026-08-09 · 2 obs

● 2026-07-17 12:42:36
● 2026-08-09 16:47:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
ca	c.ca-servers.ca, d.ca-servers.ca, j.ca-servers.ca, any.ca-servers.ca	-
codexcore.ca	cris.ns.cloudflare.com, ollie.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.35.202

NS records: cris.ns.cloudflare.com, ollie.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codexcore.ca (unsigned zone)

⏱️ Timing

Total: 1342ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`track.smtp2go.net`

Analysis

IP Addresses

link.codexcore.ca directs to two IP numbers, 170.187.131.209 and 185.3.93.228

Among the host names that share IP numbers with link.codexcore.ca are olt.smtphost.com, 185-3-93-228.ip.linodeusercontent.com, smtpservice.net and two others.

Mail Servers

link.codexcore.ca routes its mail through a single mail server, track.smtp2go.net.

link.codexcore.ca and domains like track.smtp2go.net share an identical mail server configuration.

The host track.smtp2go.net resolves to 170.187.131.209 and 185.3.93.228 — two IP addresses.

link.codexcore.ca - dns.ninja