🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`coldcertain.tech`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::6815:1903^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:dd84^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.25.3^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.221.132^{🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`grant.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c82^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grant.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c382^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`grant.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2382^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`grant.ns.cloudflare.com`
		A	108.162.195.130^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grant.ns.cloudflare.com`
		A	162.159.44.130^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grant.ns.cloudflare.com`
		A	172.64.35.130^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`grant.ns.cloudflare.com`
NS	`melina.ns.cloudflare.com`
		A	2606:4700:50::a29f:26b8^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2b8^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`melina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22b8^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`melina.ns.cloudflare.com`
		A	108.162.194.184^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melina.ns.cloudflare.com`
		A	162.159.38.184^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melina.ns.cloudflare.com`
		A	172.64.34.184^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`melina.ns.cloudflare.com`
MX	`mx1.titan.email` ⭐
		A	32.198.149.193
			PTR	`ec2-32-198-149-193.compute-1.amazonaws.com`
		A	54.226.191.27^{🇺🇸 Amazon54.226.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-226-191-27.compute-1.amazonaws.com`
		A	98.90.103.167^{🇺🇸 Amazon98.88.0.0/13 EC2 IAD prefix}
			PTR	`ec2-98-90-103-167.compute-1.amazonaws.com`
MX	`mx2.titan.email`⁽²⁰⁾
		A	32.198.149.193
			PTR	`ec2-32-198-149-193.compute-1.amazonaws.com`
		A	54.226.191.27^{🇺🇸 Amazon54.226.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-226-191-27.compute-1.amazonaws.com`
		A	98.90.103.167^{🇺🇸 Amazon98.88.0.0/13 EC2 IAD prefix}
			PTR	`ec2-98-90-103-167.compute-1.amazonaws.com`
TXT	`v=spf1 include:spf.titan.email ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.25.3, 172.67.221.132
		IPv6 hints	2606:4700:3036::6815:1903, 2606:4700:3037::ac43:dd84
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=165, name=cloudflare-ech.com
SOA	`grant.ns.cloudflare.com`dns@cloudflare.com serial=2416009740

`tech`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns01.trs-dns.com` ⭐
	NS	`ns.trs-dns.com`
	NS	`ns01.trs-dns.net`
	NS	`ns10.trs-dns.info`
	NS	`ns10.trs-dns.org`
	SOA	`ns.trs-dns.com`trs-ops@tucows.com serial=1790638736

Same first word

coldcertain.com

coldcertain.tech

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Previous names

Next names

DNS History

8 records (8 active, 0 former)

●NSgrant.ns.cloudflare.com2026-09-26 → 2026-09-29 · 2 obs

● 2026-09-26 22:19:32
● 2026-09-29 00:13:58

●NSmelina.ns.cloudflare.com2026-09-26 → 2026-09-29 · 2 obs

● 2026-09-26 22:19:32
● 2026-09-29 00:13:58

●MXmx1.titan.email2026-09-26 → 2026-09-29 · 2 obs

● 2026-09-26 22:19:32
● 2026-09-29 00:13:58

●MXmx2.titan.email2026-09-26 → 2026-09-29 · 2 obs

● 2026-09-26 22:19:32
● 2026-09-29 00:13:58

●A104.21.25.32026-09-27 → 2026-09-29 · 2 obs

● 2026-09-27 22:46:18
● 2026-09-29 00:13:58

●A172.67.221.1322026-09-27 → 2026-09-29 · 2 obs

● 2026-09-27 22:46:18
● 2026-09-29 00:13:58

●A2606:4700:3036::6815:19032026-09-27 → 2026-09-29 · 2 obs

● 2026-09-27 22:46:18
● 2026-09-29 00:13:58

●A2606:4700:3037::ac43:dd842026-09-27 → 2026-09-29 · 2 obs

● 2026-09-27 22:46:18
● 2026-09-29 00:13:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
tech	ns01.trs-dns.com, ns10.trs-dns.org, ns10.trs-dns.info, ns01.trs-dns.net	8 records
coldcertain.tech	melina.ns.cloudflare.com, grant.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.130

NS records: melina.ns.cloudflare.com, grant.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coldcertain.tech (unsigned zone)

⏱️ Timing

Total: 730ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.221.132, 104.21.25.3`
AAAA	2	`2606:4700:3036::6815:1903, 2606:4700:3037::ac43:dd84`
NS	2	`grant.ns.cloudflare.com, melina.ns.cloudflare.com`
MX	2	`mx1.titan.email (pri: 10), mx2.titan.email (pri: 20)`
TXT	1	`v=spf1 include:spf.titan.email ~all`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`grant.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns01.trs-dns.com, ns01.trs-dns.com, ns10.trs-dns.org...)

Analysis

IP Addresses

coldcertain.tech has four IP addresses: 104.21.25.3, 172.67.221.132, 2606:4700:3036::6815:1903 and 2606:4700:3037::ac43:dd84.

dingoaccess.com, zonnepaneleninhaarlem.nl, casino8833.casa plus two other host names have IP numbers in common with coldcertain.tech.

Name Servers

Two name servers handle the delegation for coldcertain.tech: grant.ns.cloudflare.com and melina.ns.cloudflare.com.

The name server configuration of coldcertain.tech is shared with other domains, for instance fideo.tv, m4nihi84.workers.dev, 85q2nh5b48.workers.dev and two others.

coldcertain.tech partially shares its NS delegation with several other domains, including 33win.democrat, website-a2y.pages.dev, vincent-138.workers.dev and two others.

These name servers are regularly seen alongside delilah.ns.cloudflare.com and sharon.ns.cloudflare.com as name servers.

Hosts with 6 IP addresses each:

grant.ns.cloudflare.com resolves to 108.162.195.130, 162.159.44.130 and 172.64.35.130 among others, with 3 other IP addresses in total.

melina.ns.cloudflare.com resolves to 108.162.194.184, 162.159.38.184 and 172.64.34.184 among others, with 3 other IP addresses in total.

Mail Servers

coldcertain.tech uses two mail servers, mx1.titan.email and mx2.titan.email.

The mail server setup of coldcertain.tech matches that of other domains such as fromspinetosubmission.com, weybike.com, can-discountmoving.com and two others.

coldcertain.tech partially shares its mail servers with other domains, theburrowescape.com and todocomputoyservicios.com being examples.

mx1.titan.email and mx2.titan.email both direct to 32.198.149.193, 54.226.191.27 and 98.90.103.167, all three IP addresses being shared between the two hosts.

mx1.titan.email along with mx2.titan.email each resolve to 32.198.149.193 IP addresses.

mx1.titan.email along with mx2.titan.email each resolve to 54.226.191.27 IP addresses.

mx1.titan.email along with mx2.titan.email each resolve to 98.90.103.167 IP addresses.

coldcertain.tech - robtex.com