mail.bestofstartup.com - robtex.com

mail.bestofstartup.com

DNSSEC⚠️ Not signed
A104.21.19.136Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.186.108🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.19.136, 172.67.186.108

bestofstartup.com

DNSSEC⚠️ Not signed
A104.21.19.136Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.186.108🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdana.ns.cloudflare.com ⭐
NStony.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.19.136, 172.67.186.108
SOAdana.ns.cloudflare.comdns@cloudflare.com serial=2397000696

Previously MX for

bestofstartup.com

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DNS History

3 records (2 active, 1 former)

2017201820192020202120222023202420252026A104.21.19.136172.67.186.108195.154.200.137
●A104.21.19.1362026-03-27 → 2026-03-27 · 3 obs
○ 2016-07-15 21:28:52
● 2026-03-27 18:11:12
● 2026-03-27 18:11:14
●A172.67.186.1082026-03-27 → 2026-03-27 · 3 obs
○ 2016-07-15 21:28:52
● 2026-03-27 18:11:12
● 2026-03-27 18:11:14
○A195.154.200.1372016-07-15 → 2016-07-15 · 3 obs
● 2016-07-15 21:28:52
○ 2026-03-27 18:11:12
○ 2026-03-27 18:11:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
bestofstartup.comdana.ns.cloudflare.com, tony.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.192.105

NS records: dana.ns.cloudflare.com, tony.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bestofstartup.com (unsigned zone)

⏱️ Timing

Total: 80ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.186.108, 104.21.19.136
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

The entity mail.bestofstartup.com points to two IP numbers: 104.21.19.136 and 172.67.186.108.

For instance, other host names cassiyjohnson.com, 1396.260909.com, andregroten.com, www.zenmagazineafrica.com and fjmedia.biz share IP numbers with mail.bestofstartup.com.