`mail.questduo.com`

DNSSEC

⚠️ Not signed

`questduo.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:679^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:86d5^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.6.121^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.134.213^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`coraline.ns.cloudflare.com` ⭐
NS	`jay.ns.cloudflare.com`
MX	`route1.mx.cloudflare.net` ⭐
MX	`route2.mx.cloudflare.net`⁽⁸⁶⁾
MX	`route3.mx.cloudflare.net`⁽⁸⁸⁾
TXT	`google-site-verification=SAfUL7K5z4XyvMrzk74wQjydEKH5lpbcA8wajNe8enM`
TXT	`google-site-verification=oYEddZfa2o4l3wcAItmOed4th2bljbzUtj-CCCWCp2g`
TXT	`v=spf1 include:_spf.mx.cloudflare.net ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.6.121, 172.67.134.213
		IPv6 hints	2606:4700:3035::6815:679, 2606:4700:3037::ac43:86d5
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=225, name=cloudflare-ech.com
SOA	`coraline.ns.cloudflare.com`dns@cloudflare.com serial=2406794911

Previously MX for

questduo.com

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DNS History

1 record (0 active, 1 former)

○A59.100.88.1812015-07-21 → 2016-07-19 · 3 obs

● 2015-07-21 18:55:52
● 2016-07-19 06:43:14
○ 2026-08-07 12:26:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	j.gtld-servers.net, e.gtld-servers.net, b.gtld-servers.net, k.gtld-servers.net...	-
questduo.com	jay.ns.cloudflare.com, coraline.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.88

NS records: jay.ns.cloudflare.com, coraline.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for questduo.com (unsigned zone)

⏱️ Timing

Total: 111ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 12

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

mail.questduo.com - robtex.com