c1engineering.com - dns.ninja

`c1engineering.com`

DNSSEC	⚠️ Not signed
A	104.153.154.4^{🇺🇸 C1ENGINEERING-ONT1104.153.154.0/23 Convergeone 9000 Rochester Ave 150 Rancho Cucamonga, CA 91730 United States}
		PTR	`vpn.c1engineering.com`
NS	`ns-1787.awsdns-31.co.uk` ⭐
		A	2600:9000:5306:fb00::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1787.awsdns-31.co.uk`
		A	205.251.198.251^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1787.awsdns-31.co.uk`
NS	`ns-1087.awsdns-07.org`
		A	2600:9000:5304:3f00::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1087.awsdns-07.org`
		A	205.251.196.63^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1087.awsdns-07.org`
NS	`ns-662.awsdns-18.net`
		A	2600:9000:5302:9600::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-662.awsdns-18.net`
		A	205.251.194.150^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-662.awsdns-18.net`
NS	`ns-85.awsdns-10.com`
		A	2600:9000:5300:5500::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-85.awsdns-10.com`
		A	205.251.192.85^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-85.awsdns-10.com`
MX	`inbound-smtp.us-east-1.amazonaws.com` ⭐
TXT	`v=spf1 a mx ip4:104.153.152.0/24 ip4:104.153.154.0/23 ip4:50.214.175.0/26 ip6...`
SOA	`ns-1787.awsdns-31.co.uk`awsdns-hostmaster@amazon.com serial=1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1782463435

Subdomains

vpn.c1engineering.com

nbactivate.c1engineering.com

Same first word

c1engineering.com

DNS History

10 records (6 active, 4 former)

●NSns-1087.awsdns-07.org2026-02-15 → 2026-06-26 · 3 obs

○ 2017-12-10 09:51:48
● 2026-02-15 18:43:02
● 2026-06-26 09:09:48

○NSns-1380.awsdns-44.org2017-12-10 → 2017-12-10 · 3 obs

● 2017-12-10 09:51:48
○ 2026-02-15 18:43:02
○ 2026-06-26 09:09:48

○NSns-1612.awsdns-09.co.uk2017-12-10 → 2017-12-10 · 3 obs

● 2017-12-10 09:51:48
○ 2026-02-15 18:43:02
○ 2026-06-26 09:09:48

●NSns-1787.awsdns-31.co.uk2026-02-15 → 2026-06-26 · 3 obs

○ 2017-12-10 09:51:48
● 2026-02-15 18:43:02
● 2026-06-26 09:09:48

○NSns-236.awsdns-29.com2017-12-10 → 2017-12-10 · 3 obs

● 2017-12-10 09:51:48
○ 2026-02-15 18:43:02
○ 2026-06-26 09:09:48

○NSns-583.awsdns-08.net2017-12-10 → 2017-12-10 · 3 obs

● 2017-12-10 09:51:48
○ 2026-02-15 18:43:02
○ 2026-06-26 09:09:48

●NSns-662.awsdns-18.net2026-02-15 → 2026-06-26 · 3 obs

○ 2017-12-10 09:51:48
● 2026-02-15 18:43:02
● 2026-06-26 09:09:48

●NSns-85.awsdns-10.com2026-02-15 → 2026-06-26 · 3 obs

○ 2017-12-10 09:51:48
● 2026-02-15 18:43:02
● 2026-06-26 09:09:48

●MXinbound-smtp.us-east-1.amazonaws.com2026-02-15 → 2026-06-26 · 2 obs

● 2026-02-15 18:43:02
● 2026-06-26 09:09:48

●A104.153.154.42026-02-15 → 2026-06-26 · 2 obs

● 2026-02-15 18:43:02
● 2026-06-26 09:09:48

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, f.gtld-servers.net, h.gtld-servers.net, l.gtld-servers.net...	-
c1engineering.com	ns-85.awsdns-10.com, ns-662.awsdns-18.net, ns-1087.awsdns-07.org, ns-1787.awsdns-31.co.uk	2 records

✅ Authoritative Response

Server:205.251.192.85

NS records: ns-85.awsdns-10.com, ns-662.awsdns-18.net, ns-1087.awsdns-07.org, ns-1787.awsdns-31.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for c1engineering.com (unsigned zone)

⏱️ Timing

Total: 1718ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`104.153.154.4`
NS	4	`ns-1087.awsdns-07.org, ns-1787.awsdns-31.co.uk...`
MX	1	`inbound-smtp.us-east-1.amazonaws.com (pr`
TXT	1	`v=spf1 a mx ip4:104.153.152.0/24 ip4:104`
SOA	1	`ns-1787.awsdns-31.co.uk awsdns-hostmaste`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns-85.awsdns-10.com, ns-85.awsdns-10.com)

Analysis

Hierarchy

The parent domain of vpn.c1engineering.com and nbactivate.c1engineering.com is c1engineering.com.

IP Addresses

c1engineering.com directs to one IP number, which is 104.153.154.4.

Name Servers

The domain c1engineering.com is delegated to these four name servers: ns-85.awsdns-10.com, ns-662.awsdns-18.net, ns-1087.awsdns-07.org and ns-1787.awsdns-31.co.uk.

The name servers of c1engineering.com overlap at least partially with those of other domains — among them 3dcontentcentral.com, freships.com, teslanorth.com and two more.

Each of the four hosts ns-85.awsdns-10.com, ns-662.awsdns-18.net, ns-1087.awsdns-07.org and ns-1787.awsdns-31.co.uk has two IP addresses. ns-85.awsdns-10.com points to 205.251.192.85 and 2600:9000:5300:5500::1. ns-662.awsdns-18.net points to 205.251.194.150 and 2600:9000:5302:9600::1. ns-1087.awsdns-07.org points to 205.251.196.63 and 2600:9000:5304:3f00::1. ns-1787.awsdns-31.co.uk points to 205.251.198.251 and 2600:9000:5306:fb00::1.

Mail Servers

c1engineering.com routes its mail through a single mail server, inbound-smtp.us-east-1.amazonaws.com.

c1engineering.com has the same mail server arrangement as a number of other domains, for example paddoor.com, happytoto.slack.com, autofiction.ai and two more.

c1engineering.com shares at least some of its mail servers with other domains — for example blackx.io, visionsoftware.atlassian.net, leptonsoftware.atlassian.net and two more.

It is common to find these mail servers paired with the mail servers inbound-smtp.us-west-2.amazonaws.com.