mx.nelbook.ru - robtex.com

mx.nelbook.ru

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:3f3b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:8fdd🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.63.59Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.143.221🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.63.59, 172.67.143.221
IPv62606:4700:3034::6815:3f3b, 2606:4700:3037::ac43:8fdd

nelbook.ru

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:3f3b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:8fdd🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.63.59Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.143.221🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbonnie.ns.cloudflare.com ⭐
NSjake.ns.cloudflare.com
MXmx.nelbook.ru ⭐
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.63.59, 172.67.143.221
IPv62606:4700:3034::6815:3f3b, 2606:4700:3037::ac43:8fdd
SOAbonnie.ns.cloudflare.comdns@cloudflare.com serial=2396539382

MX for

nelbook.ru

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xm.com.ua
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DNS History

4 records (4 active, 0 former)

A104.21.63.59172.67.143.2212606:4700:3034::6815:3f3b2606:4700:3037::ac43:8fdd
●A104.21.63.592026-02-15 → 2026-03-30 · 2 obs
● 2026-02-15 22:41:02
● 2026-03-30 18:07:08
●A172.67.143.2212026-02-15 → 2026-03-30 · 2 obs
● 2026-02-15 22:41:02
● 2026-03-30 18:07:08
●A2606:4700:3034::6815:3f3b2026-02-15 → 2026-03-30 · 2 obs
● 2026-02-15 22:41:02
● 2026-03-30 18:07:08
●A2606:4700:3037::ac43:8fdd2026-02-15 → 2026-03-30 · 2 obs
● 2026-02-15 22:41:02
● 2026-03-30 18:07:08

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
rua.dns.ripn.net, f.dns.ripn.net, d.dns.ripn.net, b.dns.ripn.net...-
nelbook.rubonnie.ns.cloudflare.com, jake.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.76

NS records: bonnie.ns.cloudflare.com, jake.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nelbook.ru (unsigned zone)

⏱️ Timing

Total: 539ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.63.59, 172.67.143.221
AAAA22606:4700:3037::ac43:8fdd, 2606:4700:3034::6815:3f3b
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

Mail Server Role

mx.nelbook.ru serves as a mail server for nelbook.ru.

IP Addresses

mx.nelbook.ru refers to four IP numbers: 2606:4700:3034::6815:3f3b, 2606:4700:3037::ac43:8fdd, 104.21.63.59 and 172.67.143.221.

Other host names, for instance geostructdev.buzz, biddsacocc.com, mail.wolti.info, jwccp.com and jejexoisanalytics.digital share IP numbers with mx.nelbook.ru.