mail.first-class-event.com - robtex.com

mail.first-class-event.com

DNSSEC⚠️ Not signed
A2606:4700:3034::ac43:cc7d🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:3a8b🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.58.139Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.204.125🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.58.139, 172.67.204.125
IPv6 hints2606:4700:3034::ac43:cc7d, 2606:4700:3037::6815:3a8b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=31, name=cloudflare-ech.com

first-class-event.com

DNSSEC⚠️ Not signed
A2606:4700:3034::ac43:cc7d🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:3a8b🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.58.139Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.204.125🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NScoco.ns.cloudflare.com ⭐
NSvin.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.58.139, 172.67.204.125
IPv6 hints2606:4700:3034::ac43:cc7d, 2606:4700:3037::6815:3a8b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=31, name=cloudflare-ech.com
SOAcoco.ns.cloudflare.comdns@cloudflare.com serial=2406762410

Previously MX for

first-class-event.com

Same first word

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DNS History

7 records (4 active, 3 former)

20192020202120222023202420252026NSa.ns36.deb.ns36.deA104.21.58.139172.67.204.1252606:4700:3034::ac43:cc7d2606:4700:3037::6815:3a8b185.15.41.188
○NSa.ns36.de2018-06-23 → 2018-06-23 · 2 obs
● 2018-06-23 07:58:34
○ 2026-07-25 17:31:56
○NSb.ns36.de2018-06-23 → 2018-06-23 · 2 obs
● 2018-06-23 07:58:34
○ 2026-07-25 17:31:56
●A104.21.58.1392026-07-25 → 2026-07-25 · 2 obs
○ 2018-06-23 07:58:34
● 2026-07-25 17:31:56
●A172.67.204.1252026-07-25 → 2026-07-25 · 2 obs
○ 2018-06-23 07:58:34
● 2026-07-25 17:31:56
○A185.15.41.1882018-06-23 → 2018-06-23 · 2 obs
● 2018-06-23 07:58:34
○ 2026-07-25 17:31:56
●A2606:4700:3034::ac43:cc7d2026-07-25 → 2026-07-25 · 2 obs
○ 2018-06-23 07:58:34
● 2026-07-25 17:31:56
●A2606:4700:3037::6815:3a8b2026-07-25 → 2026-07-25 · 2 obs
○ 2018-06-23 07:58:34
● 2026-07-25 17:31:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net...-
first-class-event.comcoco.ns.cloudflare.com, vin.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.245

NS records: coco.ns.cloudflare.com, vin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for first-class-event.com (unsigned zone)

⏱️ Timing

Total: 107ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.58.139, 172.67.204.125
AAAA22606:4700:3034::ac43:cc7d, 2606:4700:3037::6815:3a8b
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.first-class-event.com points to the four IP addresses 104.21.58.139, 172.67.204.125, 2606:4700:3034::ac43:cc7d and 2606:4700:3037::6815:3a8b.

brawl-pirates.ru, lovendal.net, www.yqbyyoplait.com and two other host names share IP numbers with mail.first-class-event.com.