mail.mastermit.com - robtex.com

mail.mastermit.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2ee8🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:8f24🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.46.232Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.143.36🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.46.232, 172.67.143.36
IPv62606:4700:3030::6815:2ee8, 2606:4700:3032::ac43:8f24

mastermit.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:2ee8🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:8f24🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.46.232Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.143.36🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSadi.ns.cloudflare.com ⭐
NSsullivan.ns.cloudflare.com
MXaspmx.l.google.com ⭐
MXalt1.aspmx.l.google.com(5)
MXalt2.aspmx.l.google.com(5)
MXalt3.aspmx.l.google.com(10)
MXalt4.aspmx.l.google.com(10)
TXTgoogle-site-verification=93ZZIvjhFYeGfNNGeh05DKKTMjISbu-MEyNfNUYbYdg
TXTgoogle-site-verification=GACOboFzzbuUj6mwqvZGg0O7yZI-pARW8ioy7lbXNNY
TXTgoogle-site-verification=SkmQpL8lYLlIXFsZZtAuZj3ETWsnduYhNq0GXn2MYR0
TXTgoogle-site-verification=lLujbF4Suyd18gyAQnn9Bdv6ji9qYU4XalzRQ43yVPw
TXTv=spf1 include:_spf.google.com +mx ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.46.232, 172.67.143.36
IPv62606:4700:3030::6815:2ee8, 2606:4700:3032::ac43:8f24
SOAadi.ns.cloudflare.comdns@cloudflare.com serial=2397551778

Previously MX for

mastermit.com

Same first word

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DNS History

10 records (4 active, 6 former)

20162017201820192020202120222023202420252026A104.21.46.232172.67.143.362606:4700:3030::6815:2ee82606:4700:3032::ac43:8f24185.18.52.61188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::5.187.1.102
●A104.21.46.2322026-02-26 → 2026-03-28 · 8 obs
○ 2017-01-14 20:51:00
● 2026-02-26 15:37:28
● 2026-02-26 17:04:08
○ 2026-03-09 08:51:08
● 2026-03-12 16:38:24
○ 2026-03-18 06:38:14
● 2026-03-23 14:35:44
● 2026-03-28 03:27:58
●A172.67.143.362026-02-26 → 2026-03-28 · 8 obs
○ 2017-01-14 20:51:00
● 2026-02-26 15:37:28
● 2026-02-26 17:04:08
○ 2026-03-09 08:51:08
● 2026-03-12 16:38:24
○ 2026-03-18 06:38:14
● 2026-03-23 14:35:44
● 2026-03-28 03:27:58
○A185.18.52.612015-08-07 → 2016-03-06 · 4 obs
● 2015-08-07 05:41:28
● 2016-03-06 09:19:22
○ 2016-07-07 05:08:40
○ 2026-03-28 03:27:58
○A188.114.96.02026-03-09 → 2026-03-18 · 6 obs
○ 2026-02-26 17:04:08
● 2026-03-09 08:51:08
○ 2026-03-12 16:38:24
● 2026-03-18 06:38:14
○ 2026-03-23 14:35:44
○ 2026-03-28 03:27:58
○A188.114.97.02026-03-09 → 2026-03-18 · 6 obs
○ 2026-02-26 17:04:08
● 2026-03-09 08:51:08
○ 2026-03-12 16:38:24
● 2026-03-18 06:38:14
○ 2026-03-23 14:35:44
○ 2026-03-28 03:27:58
●A2606:4700:3030::6815:2ee82026-02-26 → 2026-03-28 · 8 obs
○ 2017-01-14 20:51:00
● 2026-02-26 15:37:28
● 2026-02-26 17:04:08
○ 2026-03-09 08:51:08
● 2026-03-12 16:38:24
○ 2026-03-18 06:38:14
● 2026-03-23 14:35:44
● 2026-03-28 03:27:58
●A2606:4700:3032::ac43:8f242026-02-26 → 2026-03-28 · 8 obs
○ 2017-01-14 20:51:00
● 2026-02-26 15:37:28
● 2026-02-26 17:04:08
○ 2026-03-09 08:51:08
● 2026-03-12 16:38:24
○ 2026-03-18 06:38:14
● 2026-03-23 14:35:44
● 2026-03-28 03:27:58
○A2a06:98c1:3120::2026-03-09 → 2026-03-18 · 6 obs
○ 2026-02-26 17:04:08
● 2026-03-09 08:51:08
○ 2026-03-12 16:38:24
● 2026-03-18 06:38:14
○ 2026-03-23 14:35:44
○ 2026-03-28 03:27:58
○A2a06:98c1:3121::2026-03-09 → 2026-03-18 · 6 obs
○ 2026-02-26 17:04:08
● 2026-03-09 08:51:08
○ 2026-03-12 16:38:24
● 2026-03-18 06:38:14
○ 2026-03-23 14:35:44
○ 2026-03-28 03:27:58
○A5.187.1.1022016-07-07 → 2017-01-14 · 5 obs
○ 2016-03-06 09:19:22
● 2016-07-07 05:08:40
● 2017-01-14 20:51:00
○ 2026-02-26 15:37:28
○ 2026-03-28 03:27:58

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comm.gtld-servers.net, l.gtld-servers.net, c.gtld-servers.net, f.gtld-servers.net...-
mastermit.comadi.ns.cloudflare.com, sullivan.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.56

NS records: adi.ns.cloudflare.com, sullivan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mastermit.com (unsigned zone)

⏱️ Timing

Total: 93ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.143.36, 104.21.46.232
AAAA22606:4700:3030::6815:2ee8, 2606:4700:3032::ac43:8f24
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.mastermit.com resolves to four IP numbers: 2606:4700:3030::6815:2ee8, 2606:4700:3032::ac43:8f24, 104.21.46.232 and 172.67.143.36.

other host names for instance ffjh.cn, adsclk.com, in8active.com, lt-ad.com and (0x6e69676761).party share IP numbers with mail.mastermit.com.