www.astuning.nl - robtex.com

www.astuning.nl

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:b01f🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:3017🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.48.23Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.176.31🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.48.23, 172.67.176.31
IPv6 hints2606:4700:3035::ac43:b01f, 2606:4700:3036::6815:3017
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=153, name=cloudflare-ech.com

astuning.nl

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:b01f🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:3017🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.48.23Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.176.31🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSjewel.ns.cloudflare.com ⭐
NSsid.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.48.23, 172.67.176.31
IPv6 hints2606:4700:3035::ac43:b01f, 2606:4700:3036::6815:3017
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=153, name=cloudflare-ech.com
SOAjewel.ns.cloudflare.comdns@cloudflare.com serial=2401001114

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DNS History

6 records (4 active, 2 former)

20192020202120222023202420252026A104.21.48.23172.67.176.312606:4700:3035::ac43:b01f2606:4700:3036::6815:3017192.186.145.233CNAMEbiedmeerserver.nl
●A104.21.48.232026-04-10 → 2026-04-22 · 2 obs
● 2026-04-10 06:13:08
● 2026-04-22 10:02:10
●A172.67.176.312026-04-10 → 2026-04-22 · 2 obs
● 2026-04-10 06:13:08
● 2026-04-22 10:02:10
○A192.186.145.2332026-04-10 → 2026-04-22 · 2 obs
○ 2026-04-10 06:13:08
○ 2026-04-22 10:02:10
●A2606:4700:3035::ac43:b01f2026-04-10 → 2026-04-22 · 2 obs
● 2026-04-10 06:13:08
● 2026-04-22 10:02:10
●A2606:4700:3036::6815:30172026-04-10 → 2026-04-22 · 2 obs
● 2026-04-10 06:13:08
● 2026-04-22 10:02:10
○CNAMEbiedmeerserver.nl2018-06-11 → 2018-06-11 · 3 obs
● 2018-06-11 14:57:04
○ 2026-04-10 06:13:08
○ 2026-04-22 10:02:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
nlns1.dns.nl, ns3.dns.nl, ns4.dns.nl-
astuning.nlsid.ns.cloudflare.com, jewel.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.171

NS records: sid.ns.cloudflare.com, jewel.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for astuning.nl (unsigned zone)

⏱️ Timing

Total: 263ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.176.31, 104.21.48.23
AAAA22606:4700:3036::6815:3017, 2606:4700:3035::ac43:b01f
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

www.astuning.nl points to four IP numbers: 2606:4700:3035::ac43:b01f, 2606:4700:3036::6815:3017, 104.21.48.23 and 172.67.176.31.

Other host names including ifentian.com, austenit.com.pl, visionarysweden.se, accelaops.com and mx.strongdesigns.com share IP numbers with www.astuning.nl.