mail.masteryong.com - robtex.com

mail.masteryong.com

DNSSEC⚠️ Not signed

masteryong.com

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:11a8🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:b1b4🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.17.168Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.177.180🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSian.ns.cloudflare.com ⭐
NStricia.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.17.168, 172.67.177.180
IPv62606:4700:3032::6815:11a8, 2606:4700:3035::ac43:b1b4
SOAian.ns.cloudflare.comdns@cloudflare.com serial=2398460657

MX for

masteryong2u.com

Previously MX for

masteryong.com

Same first word

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DNS History

1 record (0 active, 1 former)

2017201820192020202120222023202420252026A103.6.245.45
○A103.6.245.452016-12-31 → 2016-12-31 · 3 obs
● 2016-12-31 13:12:10
○ 2026-02-25 08:03:22
○ 2026-03-27 13:55:12

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
masteryong.comian.ns.cloudflare.com, tricia.ns.cloudflare.com12 records

✅ Authoritative Response

Server:173.245.59.118

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masteryong.com (unsigned zone)

⏱️ Timing

Total: 141ms | Queries: -

📄 Records

TypeCountSample Data

📌 Glue Records Collected

Total: 12

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