mail.corusa.com - robtex.com

mail.corusa.com

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:ded🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:856f🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.13.237Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.133.111🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.21.13.237, 172.67.133.111
IPv6 hints2606:4700:3033::6815:ded, 2606:4700:3036::ac43:856f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=135, name=cloudflare-ech.com

corusa.com

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:ded🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:856f🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.13.237Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.133.111🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSernest.ns.cloudflare.com ⭐
NSlinda.ns.cloudflare.com
MX_dc-mx.043d5afdc649.corusa.com ⭐
TXTca3-58a91cc2bf4f4a009d524baffb193ce4
TXTv=spf1 a mx ptr include:secureserver.net -all
HTTPSHTTP/2 ✓ hints match
IPv4 hints104.21.13.237, 172.67.133.111
IPv6 hints2606:4700:3033::6815:ded, 2606:4700:3036::ac43:856f
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=135, name=cloudflare-ech.com
SOAernest.ns.cloudflare.comdns@cloudflare.com serial=2407785917
WOT: SAFE (62/100)
WOT: SAFE (68/100)

Previously MX for

corusa.com
mail.corusa.com

Same first word

mail.guide
mail.chips.jp
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mail.gw
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mail.jellybean.jp
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aiml.tech
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DNS History

9 records (4 active, 5 former)

20162017201820192020202120222023202420252026NSns33.domaincontrol.comns34.domaincontrol.comMXmail.corusa.comA104.21.13.237172.67.133.1112606:4700:3033::6815:ded2606:4700:3036::ac43:856f160.153.75.201CNAMEcorusa.com
○NSns33.domaincontrol.com2015-11-21 → 2016-12-18 · 4 obs
● 2015-11-21 11:44:30
● 2016-12-18 23:02:28
○ 2026-07-09 17:51:44
○ 2026-07-31 07:42:02
○NSns34.domaincontrol.com2015-11-21 → 2016-12-18 · 4 obs
● 2015-11-21 11:44:30
● 2016-12-18 23:02:28
○ 2026-07-09 17:51:44
○ 2026-07-31 07:42:02
○MXmail.corusa.com2015-11-21 → 2016-12-18 · 4 obs
● 2015-11-21 11:44:30
● 2016-12-18 23:02:28
○ 2026-07-09 17:51:44
○ 2026-07-31 07:42:02
●A104.21.13.2372026-07-09 → 2026-07-31 · 3 obs
○ 2016-12-18 23:02:28
● 2026-07-09 17:51:44
● 2026-07-31 07:42:02
○A160.153.75.2012015-07-16 → 2016-12-18 · 4 obs
● 2015-07-16 00:30:34
● 2016-12-18 23:02:28
○ 2026-07-09 17:51:44
○ 2026-07-31 07:42:02
●A172.67.133.1112026-07-09 → 2026-07-31 · 3 obs
○ 2016-12-18 23:02:28
● 2026-07-09 17:51:44
● 2026-07-31 07:42:02
●A2606:4700:3033::6815:ded2026-07-09 → 2026-07-31 · 3 obs
○ 2016-12-18 23:02:28
● 2026-07-09 17:51:44
● 2026-07-31 07:42:02
●A2606:4700:3036::ac43:856f2026-07-09 → 2026-07-31 · 3 obs
○ 2016-12-18 23:02:28
● 2026-07-09 17:51:44
● 2026-07-31 07:42:02
○CNAMEcorusa.com2015-07-16 → 2016-12-18 · 4 obs
● 2015-07-16 00:30:34
● 2016-12-18 23:02:28
○ 2026-07-09 17:51:44
○ 2026-07-31 07:42:02

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comi.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net...-
corusa.comernest.ns.cloudflare.com, linda.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.164

NS records: ernest.ns.cloudflare.com, linda.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for corusa.com (unsigned zone)

⏱️ Timing

Total: 223ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.133.111, 104.21.13.237
AAAA22606:4700:3036::ac43:856f, 2606:4700:3033::6815:ded
HTTPS1{"priority":1,"target":".","alpn":["h2"]

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.corusa.com resolves to four IP addresses: 104.21.13.237, 172.67.133.111, 2606:4700:3033::6815:ded and 2606:4700:3036::ac43:856f.

lesojewuisinvestments.click, despertando.com.br, g168code.xyz plus two other host names have IP numbers in common with mail.corusa.com.