mail.sterlingsync.com - robtex.com

mail.sterlingsync.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:a703🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:4b1e🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.75.30Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.167.3🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.75.30, 172.67.167.3
IPv62606:4700:3033::ac43:a703, 2606:4700:3037::6815:4b1e

sterlingsync.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:a703🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:4b1e🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.75.30Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.167.3🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSlamar.ns.cloudflare.com ⭐
NSromina.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.75.30, 172.67.167.3
IPv62606:4700:3033::ac43:a703, 2606:4700:3037::6815:4b1e
SOAlamar.ns.cloudflare.comdns@cloudflare.com serial=2399600941

Previously MX for

sterlingsync.com

Same first word

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DNS History

5 records (4 active, 1 former)

2020202120222023202420252026A104.21.75.30172.67.167.32606:4700:3033::ac43:a7032606:4700:3037::6815:4b1e198.57.241.146
●A104.21.75.302026-03-24 → 2026-03-24 · 3 obs
○ 2019-01-22 08:11:00
● 2026-03-24 17:58:46
● 2026-03-24 17:58:48
●A172.67.167.32026-03-24 → 2026-03-24 · 3 obs
○ 2019-01-22 08:11:00
● 2026-03-24 17:58:46
● 2026-03-24 17:58:48
○A198.57.241.1462019-01-22 → 2019-01-22 · 3 obs
● 2019-01-22 08:11:00
○ 2026-03-24 17:58:46
○ 2026-03-24 17:58:48
●A2606:4700:3033::ac43:a7032026-03-24 → 2026-03-24 · 3 obs
○ 2019-01-22 08:11:00
● 2026-03-24 17:58:46
● 2026-03-24 17:58:48
●A2606:4700:3037::6815:4b1e2026-03-24 → 2026-03-24 · 3 obs
○ 2019-01-22 08:11:00
● 2026-03-24 17:58:46
● 2026-03-24 17:58:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
sterlingsync.comromina.ns.cloudflare.com, lamar.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.194.159

NS records: romina.ns.cloudflare.com, lamar.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for sterlingsync.com (unsigned zone)

⏱️ Timing

Total: 143ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.75.30, 172.67.167.3
AAAA22606:4700:3037::6815:4b1e, 2606:4700:3033::ac43:a703
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.sterlingsync.com resolves to four IPs: 2606:4700:3033::ac43:a703, 2606:4700:3037::6815:4b1e, 104.21.75.30 and 172.67.167.3.

Other host names, for instance tuanlve.com, www.ranwen.la, 2047.com.cn, starcraps.us and vonudoyedacapital.digital share IP numbers with mail.sterlingsync.com.