mail.syffer.com - robtex.com

mail.syffer.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:bd23🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:4145🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.65.69Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.189.35🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.65.69, 172.67.189.35
IPv6 hints2606:4700:3033::ac43:bd23, 2606:4700:3034::6815:4145
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=202, name=cloudflare-ech.com

syffer.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:bd23🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:4145🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.65.69Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.189.35🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSamber.ns.cloudflare.com ⭐
NSmicah.ns.cloudflare.com
MXsyffer-com.mail.protection.outlook.com ⭐
TXTMS=ms37082099
TXTMS=ms80549124
TXTv=spf1 include:spf.protection.outlook.com include:spf-de.emailsignatures365.c...
TXTzoho-verification=zb08219948.zmverify.zoho.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.65.69, 172.67.189.35
IPv6 hints2606:4700:3033::ac43:bd23, 2606:4700:3034::6815:4145
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=110, name=cloudflare-ech.com
SOAamber.ns.cloudflare.comdns@cloudflare.com serial=2409921776

Previously MX for

syffer.com

Same first word

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DNS History

5 records (4 active, 1 former)

201820192020202120222023202420252026A104.21.65.69172.67.189.352606:4700:3033::ac43:bd232606:4700:3034::6815:4145107.180.48.198
●A104.21.65.692026-08-01 → 2026-08-01 · 2 obs
○ 2017-08-11 20:10:40
● 2026-08-01 10:13:14
○A107.180.48.1982017-08-11 → 2017-08-11 · 2 obs
● 2017-08-11 20:10:40
○ 2026-08-01 10:13:14
●A172.67.189.352026-08-01 → 2026-08-01 · 2 obs
○ 2017-08-11 20:10:40
● 2026-08-01 10:13:14
●A2606:4700:3033::ac43:bd232026-08-01 → 2026-08-01 · 2 obs
○ 2017-08-11 20:10:40
● 2026-08-01 10:13:14
●A2606:4700:3034::6815:41452026-08-01 → 2026-08-01 · 2 obs
○ 2017-08-11 20:10:40
● 2026-08-01 10:13:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, f.gtld-servers.net, g.gtld-servers.net, h.gtld-servers.net...-
syffer.comamber.ns.cloudflare.com, micah.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.206

NS records: amber.ns.cloudflare.com, micah.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for syffer.com (unsigned zone)

⏱️ Timing

Total: 131ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.189.35, 104.21.65.69
AAAA22606:4700:3034::6815:4145, 2606:4700:3033::ac43:bd23
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

mail.syffer.com resolves to four IP addresses: 104.21.65.69, 172.67.189.35, 2606:4700:3033::ac43:bd23 and 2606:4700:3034::6815:4145.

Among the host names that share IP numbers with mail.syffer.com are www.ukrmap.kiev.ua, www.corporatemodelling.com, herensokken.nl and two others.