`c0-track.smtp.com`

CNAME	`c0-smtp-co-public.smtp.com`
CNAME	`c0-smtp-co-public-a0ff7d03b229680a.elb.ca-central-1.amazonaws.com`
DNSSEC	⚠️ Not signed
A	15.157.135.223^{🇨🇦 Amazon15.156.0.0/15 EC2 YUL prefix}
		PTR	`ec2-15-157-135-223.ca-central-1.compute.amazonaws.com`
A	15.222.112.179^{🇨🇦 Amazon15.222.0.0/15 EC2 YUL prefix}

`smtp.com`

	DNSSEC	⚠️ Not signed
	A	3.97.161.32^{🇨🇦 Amazon3.96.0.0/15 EC2 YUL prefix}
	A	3.99.99.108^{🇨🇦 Amazon3.98.0.0/15 EC2 YUL prefix}
	NS	`ns-1304.awsdns-35.org` ⭐
	NS	`ns-1999.awsdns-57.co.uk`
	NS	`ns-5.awsdns-00.com`
	NS	`ns-735.awsdns-27.net`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
	TXT	`adobe-idp-site-verification=cd8dab640ab786a9457c8757f4188cd682dd687a694d1d9c2...`
	TXT	`anthropic-domain-verification-a7dhhv=HKS33lCsBblqIuk9izpBfsrUP`
	TXT	`atlassian-domain-verification=QUsZX4LdPWTYZgx09JhShFot27EJnUl/5CyxXFsiGebXl2Q...`
	TXT	`ca3-45a37e403e924bf79c5654db77de6e40`
	TXT	`docusign=e502a075-c396-4062-9cf3-04d746be78d4`
	TXT	`google-site-verification=ro696-ZtDw4t7zojvY0Bn6J_vHGC8cspSNr87MvQK2I`
	TXT	`google-site-verification=yx_3sNZXSJJmoeSRx-2KgKtY3QigPtgnlNxJHMfyhxo`
	TXT	`pendo-domain-verification=503f668d-eeb7-4984-af1f-356cb1abc443`
	TXT	`stripe-verification=51BEF67C3B1EF40AC20D9413296F7414370646A39E58673F790CA9D17...`
	TXT	`v=spf1 include:_spf.smtp.com include:_spf.google.com include:_qaspf.smtp.com ...`
	TXT	`workplace-domain-verification=1C1x1SPucfNn1Fr3TGnq5S4CkW6d2K`
	TXT	`yahoo-verification-key=Utle3fUFirQWcjoayIFnRNI9Ze5xeLkJVHGiM4SDDOQ=`
	SOA	`ns-1304.awsdns-35.org`awsdns-hostmaster@amazon.com serial=2

WOT: UNKNOWN (60/100)
rank #272868 globally
rank #114651 in the tld
WOT: SUSPICIOUS (60/100)
📈 Tranco rank: #39,792

DNS History

1 record (1 active, 0 former)

●CNAMEc0-smtp-co-public.smtp.com2026-05-09 → 2026-06-05 · 2 obs

● 2026-05-09 21:53:18
● 2026-06-05 04:51:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
smtp.com	ns-5.awsdns-00.com, ns-735.awsdns-27.net, ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk	2 records
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-
smtp.com	ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net	-

✅ Authoritative Response

Server:205.251.199.207

NS records: ns-1304.awsdns-35.org, ns-1999.awsdns-57.co.uk, ns-5.awsdns-00.com, ns-735.awsdns-27.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for smtp.com (unsigned zone)

⏱️ Timing

Total: 780ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`c0-smtp-co-public.smtp.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-5.awsdns-00.com, ns-5.awsdns-00.com)

Analysis

IP Addresses

c0-track.smtp.com points to two IP numbers: 15.157.135.223 and 15.222.112.179.

c0-track.smtp.com - robtex.com

c0-track.smtp.com

smtp.com