`mail.csirus.com`

CNAME	`email1.cleverspider.com`
DNSSEC	⚠️ Not signed
A	18.213.236.140^{🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix}
		PTR	`ec2-18-213-236-140.compute-1.amazonaws.com`

`csirus.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::ac43:cbc7^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:165c^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.22.92^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.203.199^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`arnold.ns.cloudflare.com` ⭐
NS	`miki.ns.cloudflare.com`
MX	`email1.cleverspider.com` ⭐
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.22.92, 172.67.203.199
		IPv6	2606:4700:3032::ac43:cbc7, 2606:4700:3037::6815:165c
SOA	`arnold.ns.cloudflare.com`dns@cloudflare.com serial=2399450530

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DNS History

2 records (1 active, 1 former)

○A173.192.220.502015-06-18 → 2016-09-17 · 4 obs

● 2015-06-18 15:51:04
● 2016-09-17 13:59:06
○ 2026-03-26 14:50:16
○ 2026-03-28 01:17:34

●CNAMEemail1.cleverspider.com2015-06-18 → 2026-03-28 · 2 obs

● 2015-06-18 15:51:04
● 2026-03-28 01:17:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
csirus.com	arnold.ns.cloudflare.com, miki.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.69

NS records: arnold.ns.cloudflare.com, miki.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for csirus.com (unsigned zone)

⏱️ Timing

Total: 2026ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`email1.cleverspider.com`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (arnold.ns.cloudflare.com, arnold.ns.cloudflare.com, arnold.ns.cloudflare.com...)

Analysis

IP Addresses

mail.csirus.com resolves to a single IP address: 18.213.236.140.

Other host names, such as ec2-18-213-236-140.compute-1.amazonaws.com and email1.cleverspider.com, share IP numbers with mail.csirus.com.

mail.csirus.com - robtex.com

mail.csirus.com

csirus.com