mail.firstdirectory.us - robtex.com

mail.firstdirectory.us

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:c85e🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:d8a🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.13.138Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.200.94🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.13.138, 172.67.200.94
IPv62606:4700:3031::ac43:c85e, 2606:4700:3032::6815:d8a

firstdirectory.us

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:c85e🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:d8a🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.13.138Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.200.94🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSheather.ns.cloudflare.com ⭐
NSmax.ns.cloudflare.com
MX_dc-mx.94207af54185.firstdirectory.us ⭐
TXTv=spf1 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.13.138, 172.67.200.94
IPv62606:4700:3031::ac43:c85e, 2606:4700:3032::6815:d8a
SOAheather.ns.cloudflare.comdns@cloudflare.com serial=2397255430

PTR for

70.215.249.46.in-addr.arpa

Previously MX for

firstdirectory.us

Same first word

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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.13.138172.67.200.942606:4700:3031::ac43:c85e2606:4700:3032::6815:d8a46.249.215.70
●A104.21.13.1382026-02-18 → 2026-03-26 · 3 obs
○ 2016-07-17 21:39:50
● 2026-02-18 14:41:32
● 2026-03-26 03:52:20
●A172.67.200.942026-02-18 → 2026-03-26 · 3 obs
○ 2016-07-17 21:39:50
● 2026-02-18 14:41:32
● 2026-03-26 03:52:20
●A2606:4700:3031::ac43:c85e2026-02-18 → 2026-03-26 · 3 obs
○ 2016-07-17 21:39:50
● 2026-02-18 14:41:32
● 2026-03-26 03:52:20
●A2606:4700:3032::6815:d8a2026-02-18 → 2026-03-26 · 3 obs
○ 2016-07-17 21:39:50
● 2026-02-18 14:41:32
● 2026-03-26 03:52:20
○A46.249.215.702015-07-23 → 2016-07-17 · 4 obs
● 2015-07-23 06:29:30
● 2016-07-17 21:39:50
○ 2026-02-18 14:41:32
○ 2026-03-26 03:52:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
usb.cctld.us, n.cctld.us, k.cctld.us, f.cctld.us...-
firstdirectory.usheather.ns.cloudflare.com, max.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.161

NS records: heather.ns.cloudflare.com, max.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstdirectory.us (unsigned zone)

⏱️ Timing

Total: 294ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.13.138, 172.67.200.94
AAAA22606:4700:3031::ac43:c85e, 2606:4700:3032::6815:d8a
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.firstdirectory.us maps to four IP numbers: 2606:4700:3031::ac43:c85e, 2606:4700:3032::6815:d8a, 104.21.13.138 and 172.67.200.94.

Other host names, for instance domostroyi.ru, czechsauna.com, beckyhalstead.com, eoidentity.com and roasthubs.com share IP numbers with mail.firstdirectory.us.