`mail.frontlineng.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:9585^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:1da5^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.29.165^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.149.133^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.29.165, 172.67.149.133
		IPv6	2606:4700:3030::ac43:9585, 2606:4700:3033::6815:1da5

`frontlineng.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:9585^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:1da5^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.29.165^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.149.133^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`ian.ns.cloudflare.com` ⭐
NS	`stevie.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.29.165, 172.67.149.133
		IPv6	2606:4700:3030::ac43:9585, 2606:4700:3033::6815:1da5
SOA	`ian.ns.cloudflare.com`dns@cloudflare.com serial=2396869149

Previously MX for

frontlineng.com

Same first word

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DNS History

7 records (4 active, 3 former)

●A104.21.29.1652026-03-24 → 2026-03-24 · 3 obs

○ 2016-02-09 11:29:10
● 2026-03-24 14:03:16
● 2026-03-24 14:03:18

○A143.95.249.1512016-02-09 → 2016-02-09 · 4 obs

○ 2015-11-03 05:50:26
● 2016-02-09 11:29:10
○ 2026-03-24 14:03:16
○ 2026-03-24 14:03:18

○A143.95.86.1402015-11-03 → 2015-11-03 · 4 obs

○ 2015-06-21 23:46:54
● 2015-11-03 05:50:26
○ 2016-02-09 11:29:10
○ 2026-03-24 14:03:18

●A172.67.149.1332026-03-24 → 2026-03-24 · 3 obs

○ 2016-02-09 11:29:10
● 2026-03-24 14:03:16
● 2026-03-24 14:03:18

○A23.91.121.1212015-06-21 → 2015-06-21 · 3 obs

● 2015-06-21 23:46:54
○ 2015-11-03 05:50:26
○ 2026-03-24 14:03:18

●A2606:4700:3030::ac43:95852026-03-24 → 2026-03-24 · 3 obs

○ 2016-02-09 11:29:10
● 2026-03-24 14:03:16
● 2026-03-24 14:03:18

●A2606:4700:3033::6815:1da52026-03-24 → 2026-03-24 · 3 obs

○ 2016-02-09 11:29:10
● 2026-03-24 14:03:16
● 2026-03-24 14:03:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, c.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net...	-
frontlineng.com	ian.ns.cloudflare.com, stevie.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.118

NS records: ian.ns.cloudflare.com, stevie.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for frontlineng.com (unsigned zone)

⏱️ Timing

Total: 275ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.149.133, 104.21.29.165`
AAAA	2	`2606:4700:3033::6815:1da5, 2606:4700:3030::ac43:9585`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.frontlineng.com resolves to four IP numbers: 2606:4700:3030::ac43:9585, 2606:4700:3033::6815:1da5, 104.21.29.165 and 172.67.149.133.

other host names for instance econexp.ru, huhu.io, kupelnovysvet.sk, reactive-load.com and healthsouthtexarkana.com share IP numbers with mail.frontlineng.com.

mail.frontlineng.com - robtex.com