mail.chk.nu - robtex.com

mail.chk.nu

DNSSEC⚠️ Not signed
A144.76.200.42🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1
PTRsrv01.thhst.com

chk.nu

DNSSEC🔒 Signed (DS record present)
A2a01:4f8:200:8101::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A144.76.200.42🇩🇪 Hetzner144.76.0.0/16 HETZNER-RZ-BLK-ERX1
NScurt.ns.cloudflare.com ⭐
NSnadia.ns.cloudflare.com
MXmail.chk.nu ⭐
TXTfacebook-domain-verification=4o046fs2ae5vrkjz901b3qxjm085zt
TXTgoogle-site-verification=0BmQ6MLn2A8Rnna2Vn5X05dkM829E3laXycEuSAHX78
TXTgoogle-site-verification=8WxJ5QA54mYy2acjYeyUqzACS-PxHkktT_VyFP6UgWk
TXTgoogle-site-verification=QKKKE3QDcUdPOwMabCBpyEPh9bDEkdjt_3qjPLAN0yU
TXTgoogle-site-verification=qeSB1Wz8ORD-xDWZI3IwMaWPTMvycZ-OY7G1BuwdsmM
TXTgoogle-site-verification=yO3sDOrO3q0i9f7a5bqwVKQo-Kgb8ED-9pKwIHnWXQg
TXTv=spf1 +a +mx +ip4:144.76.200.42 ~all
SOAcurt.ns.cloudflare.comdns@cloudflare.com serial=2411242415

MX for

chk.nu

Same first word

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DNS History

1 record (1 active, 0 former)

A144.76.200.42
●A144.76.200.422026-07-16 → 2026-08-10 · 2 obs
● 2026-07-16 12:15:50
● 2026-08-10 17:51:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nua.ns.nu, c.ns.nu, d.ns.nu, m.ns.nu...12 records
chk.nunadia.ns.cloudflare.com, curt.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.207

NS records: nadia.ns.cloudflare.com, curt.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 613ms | Queries: -

📄 Records

TypeCountSample Data
A1144.76.200.42

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (a.ns.nu, a.ns.nu, c.ns.nu...)

Analysis

Mail Server Role

chk.nu uses mail.chk.nu as a mail server.

IP Addresses

mail.chk.nu resolves to one IP address: 144.76.200.42.

chk.nu, srv01.thhst.com, thetrap.nl and two other host names share IP numbers with mail.chk.nu.