headlessui.dev - dns.ninja

headlessui.dev

DNSSEC⚠️ Not signed
A2606:4700:3032::6815:489a🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::ac43:97d1🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.72.154Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.151.209🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSanuj.ns.cloudflare.com ⭐
A2606:4700:58::adf5:3b41🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanuj.ns.cloudflare.com
A2803:f800:50::6ca2:c141🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRanuj.ns.cloudflare.com
A2a06:98c1:50::ac40:2141🇺🇸 Cloudflare2a06:98c1:50::/45
PTRanuj.ns.cloudflare.com
A108.162.193.65🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanuj.ns.cloudflare.com
A172.64.33.65🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanuj.ns.cloudflare.com
A173.245.59.65🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRanuj.ns.cloudflare.com
NSroxy.ns.cloudflare.com
A2606:4700:50::adf5:3a8e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroxy.ns.cloudflare.com
A2803:f800:50::6ca2:c08e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRroxy.ns.cloudflare.com
A2a06:98c1:50::ac40:208e🇺🇸 Cloudflare2a06:98c1:50::/45
PTRroxy.ns.cloudflare.com
A108.162.192.142🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroxy.ns.cloudflare.com
A172.64.32.142🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroxy.ns.cloudflare.com
A173.245.58.142🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRroxy.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.72.154, 172.67.151.209
IPv6 hints2606:4700:3032::6815:489a, 2606:4700:3037::ac43:97d1
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=169, name=cloudflare-ech.com
SOAanuj.ns.cloudflare.comdns@cloudflare.com serial=2406825147

dev

DNSSEC🔒 Signed (DS record present)
NSns-tld1.charlestonroadregistry.com ⭐
NSns-tld2.charlestonroadregistry.com
NSns-tld3.charlestonroadregistry.com
NSns-tld4.charlestonroadregistry.com
NSns-tld5.charlestonroadregistry.com
SOAns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1
rank #916825 globally
rank #780 in the tld
🔒 HSTS Preload (+subdomains)

Subdomains

www.headlessui.dev

Same first word

headlessui.com
headlessui.dev

Similar names

dieselhaus.com
dieselhaus.net

DNS History

10 records (6 active, 4 former)

NSanuj.ns.cloudflare.comroxy.ns.cloudflare.comA104.21.72.154172.67.151.2092606:4700:3032::6815:489a2606:4700:3037::ac43:97d1188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::
●NSanuj.ns.cloudflare.com2026-02-15 → 2026-06-13 · 2 obs
● 2026-02-15 16:50:18
● 2026-06-13 18:56:22
●NSroxy.ns.cloudflare.com2026-02-15 → 2026-06-13 · 2 obs
● 2026-02-15 16:50:18
● 2026-06-13 18:56:22
●A104.21.72.1542026-02-15 → 2026-06-13 · 5 obs
● 2026-02-15 16:50:18
● 2026-04-06 10:02:00
○ 2026-04-07 06:18:36
● 2026-05-14 04:15:20
● 2026-06-13 18:56:22
●A172.67.151.2092026-02-15 → 2026-06-13 · 5 obs
● 2026-02-15 16:50:18
● 2026-04-06 10:02:00
○ 2026-04-07 06:18:36
● 2026-05-14 04:15:20
● 2026-06-13 18:56:22
○A188.114.96.02026-04-07 → 2026-04-07 · 4 obs
○ 2026-04-06 10:02:00
● 2026-04-07 06:18:36
○ 2026-05-14 04:15:20
○ 2026-06-13 18:56:22
○A188.114.97.02026-04-07 → 2026-04-07 · 4 obs
○ 2026-04-06 10:02:00
● 2026-04-07 06:18:36
○ 2026-05-14 04:15:20
○ 2026-06-13 18:56:22
●A2606:4700:3032::6815:489a2026-02-15 → 2026-06-13 · 5 obs
● 2026-02-15 16:50:18
● 2026-04-06 10:02:00
○ 2026-04-07 06:18:36
● 2026-05-14 04:15:20
● 2026-06-13 18:56:22
●A2606:4700:3037::ac43:97d12026-02-15 → 2026-06-13 · 5 obs
● 2026-02-15 16:50:18
● 2026-04-06 10:02:00
○ 2026-04-07 06:18:36
● 2026-05-14 04:15:20
● 2026-06-13 18:56:22
○A2a06:98c1:3120::2026-04-07 → 2026-04-07 · 4 obs
○ 2026-04-06 10:02:00
● 2026-04-07 06:18:36
○ 2026-05-14 04:15:20
○ 2026-06-13 18:56:22
○A2a06:98c1:3121::2026-04-07 → 2026-04-07 · 4 obs
○ 2026-04-06 10:02:00
● 2026-04-07 06:18:36
○ 2026-05-14 04:15:20
○ 2026-06-13 18:56:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
devns-tld3.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com...-
headlessui.devanuj.ns.cloudflare.com, roxy.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.65

NS records: anuj.ns.cloudflare.com, roxy.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for headlessui.dev (unsigned zone)

⏱️ Timing

Total: 1121ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.151.209, 104.21.72.154
AAAA22606:4700:3037::ac43:97d1, 2606:4700:3032::6815:489a
NS2anuj.ns.cloudflare.com, roxy.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1anuj.ns.cloudflare.com dns.cloudflare.co

Analysis

Hierarchy

headlessui.dev is the parent zone for www.headlessui.dev.

IP Addresses

headlessui.dev points to four IP numbers: 104.21.72.154, 172.67.151.209, 2606:4700:3032::6815:489a and 2606:4700:3037::ac43:97d1.

xn--35-6kcqzd9d.xn--p1ai, vulkan-apparaty.top, q1x9m.top plus two other host names have IP numbers in common with headlessui.dev.

Name Servers

headlessui.dev has two authoritative name servers — anuj.ns.cloudflare.com and roxy.ns.cloudflare.com.

The name server configuration of headlessui.dev is shared with other domains, for instance saunavanegmond.nl, mvsdna.com, boldcityagency.com and two others.

headlessui.dev partially shares its NS delegation with several other domains, including pbendo.com, dilya.site, cinesoft.live and two others.

These name servers often co-occur with the name servers sharon.ns.cloudflare.com.

Hosts with 6 IP addresses each:

anuj.ns.cloudflare.com points to 108.162.193.65, 172.64.33.65, 173.245.59.65 and 3 other IP addresses.

roxy.ns.cloudflare.com points to 108.162.192.142, 172.64.32.142, 173.245.58.142 and 3 other IP addresses.