testapp.shelf.nu - robtex.com

testapp.shelf.nu

DNSSEC⚠️ Not signed
A2a09:8280:1::37:1f54🇺🇸 FLYIO-12a09:8280:1::/48 Proxy Registration / Customer Route
PTRipv6.customer.flyio.net
A66.241.125.171🇺🇸 FLYIO-166.241.124.0/23 Fly.io Edge Network

shelf.nu

DNSSEC⚠️ Not signed
A2606:4700:3031::ac43:a98e🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::6815:2733🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.39.51Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.169.142🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjakub.ns.cloudflare.com ⭐
NSval.ns.cloudflare.com
MXmail.shelf.nu ⭐
TXTapple-domain-verification=hrKLaQ2mkS1FVHDK
TXTgoogle-site-verification=CDuL2cJH10oEWx-PpnUK4ToN3-9lJKLuhcclK1XOIVA
TXTgoogle-site-verification=Ej7UITgf0qYS-eAjXmsCCLGMGWVoXQGHehpatDCxt4Q
TXTproxy-ssl.webflow.com.
TXTv=spf1 a mx ip4:185.104.29.90 ip6:2a06:2ec0:1:0:0:0:0:127 include:filter-out....
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.39.51, 172.67.169.142
IPv6 hints2606:4700:3031::ac43:a98e, 2606:4700:3032::6815:2733
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=20, name=cloudflare-ech.com
SOAjakub.ns.cloudflare.comdns@cloudflare.com serial=2399398364

Same first word

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DNS History

2 records (2 active, 0 former)

A2a09:8280:1::37:1f5466.241.125.171
●A2a09:8280:1::37:1f542026-03-27 → 2026-04-23 · 2 obs
● 2026-03-27 02:40:28
● 2026-04-23 22:41:14
●A66.241.125.1712026-03-27 → 2026-04-23 · 2 obs
● 2026-03-27 02:40:28
● 2026-04-23 22:41:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
num.ns.nu, z.ns.nu, c.ns.nu, d.ns.nu...12 records
shelf.nujakub.ns.cloudflare.com, val.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.195.85

NS records: jakub.ns.cloudflare.com, val.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for shelf.nu (unsigned zone)

⏱️ Timing

Total: 491ms | Queries: -

📄 Records

TypeCountSample Data
A166.241.125.171
AAAA12a09:8280:1::37:1f54

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (m.ns.nu, m.ns.nu, z.ns.nu...)

Analysis

IP Addresses

testapp.shelf.nu has two IP numbers: 2a09:8280:1::37:1f54 and 66.241.125.171.

Other host names, for instance sulamon.com, solarsync.app, huddlecare.us, guavy.com and action-item-extractor.sisaacson.io share IP numbers with testapp.shelf.nu.