mail.tech-knowhow.com - robtex.com

mail.tech-knowhow.com

DNSSEC⚠️ Not signed
A2a02:c207:2310:4191::1🇩🇪 CONTABO2a02:c207::/32
PTRvmi3104191.contaboserver.net
A217.76.49.84🇩🇪 CONTABO217.76.48.0/20

tech-knowhow.com

DNSSEC⚠️ Not signed
A195.35.15.41🇩🇪 IIHOS001195.35.8.0/21 HOSTINGER US
NScortney.ns.cloudflare.com ⭐
NSdave.ns.cloudflare.com
MXmail.tech-knowhow.com ⭐
TXTgoogle-site-verification=KOdWLOELXTovz6Q8eGdg2m201AjnWIAV2LAPOvx50TQ
TXTv=spf1 include:amazonses.com ~all
SOAcortney.ns.cloudflare.comdns@cloudflare.com serial=2399113876

MX for

tech-knowhow.com

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DNS History

2 records (2 active, 0 former)

A217.76.49.842a02:c207:2310:4191::1
●A217.76.49.842026-03-14 → 2026-03-24 · 2 obs
● 2026-03-14 11:16:50
● 2026-03-24 20:49:36
●A2a02:c207:2310:4191::12026-03-18 → 2026-03-24 · 3 obs
○ 2026-03-14 11:16:50
● 2026-03-18 08:48:18
● 2026-03-24 20:49:36

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
come.gtld-servers.net, h.gtld-servers.net, c.gtld-servers.net, b.gtld-servers.net...-
tech-knowhow.comdave.ns.cloudflare.com, cortney.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.109

NS records: dave.ns.cloudflare.com, cortney.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 320ms | Queries: -

📄 Records

TypeCountSample Data
A1217.76.49.84
AAAA12a02:c207:2310:4191::1

📌 Glue Records Collected

Total: 12

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

Analysis

Mail Server Role

mail.tech-knowhow.com acts as a mail server for tech-knowhow.com.

IP Addresses

mail.tech-knowhow.com points to two IP numbers: 2a02:c207:2310:4191::1 and 217.76.49.84.

Other host names, for instance mail.digital-archivist.com and vmi3104191.contaboserver.net, share IP numbers with mail.tech-knowhow.com.