www.37sd.com - robtex.com

www.37sd.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:d202🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:42f3🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.66.243Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.210.2🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.66.243, 172.67.210.2
IPv6 hints2606:4700:3033::ac43:d202, 2606:4700:3034::6815:42f3
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=228, name=cloudflare-ech.com

37sd.com

DNSSEC⚠️ Not signed
A2606:4700:3033::ac43:d202🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:42f3🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.66.243Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.210.2🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSguss.ns.cloudflare.com ⭐
NSmonroe.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.66.243, 172.67.210.2
IPv6 hints2606:4700:3033::ac43:d202, 2606:4700:3034::6815:42f3
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=228, name=cloudflare-ech.com
SOAguss.ns.cloudflare.comdns@cloudflare.com serial=2410190207

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DNS History

10 records (4 active, 6 former)

A104.21.66.243172.67.210.22606:4700:3033::ac43:d2022606:4700:3034::6815:42f3188.114.96.0188.114.97.02606:4700:3030::ac43:d2022606:4700:3035::6815:42f32a06:98c1:3120::2a06:98c1:3121::
●A104.21.66.2432026-03-05 → 2026-08-06 · 4 obs
● 2026-03-05 05:43:46
● 2026-05-26 06:10:28
○ 2026-06-16 03:29:04
● 2026-08-06 16:49:16
●A172.67.210.22026-03-05 → 2026-08-06 · 4 obs
● 2026-03-05 05:43:46
● 2026-05-26 06:10:28
○ 2026-06-16 03:29:04
● 2026-08-06 16:49:16
○A188.114.96.02026-06-16 → 2026-06-16 · 3 obs
○ 2026-05-26 06:10:28
● 2026-06-16 03:29:04
○ 2026-08-06 16:49:16
○A188.114.97.02026-06-16 → 2026-06-16 · 3 obs
○ 2026-05-26 06:10:28
● 2026-06-16 03:29:04
○ 2026-08-06 16:49:16
○A2606:4700:3030::ac43:d2022026-03-05 → 2026-05-26 · 4 obs
● 2026-03-05 05:43:46
● 2026-05-26 06:10:28
○ 2026-06-16 03:29:04
○ 2026-08-06 16:49:16
●A2606:4700:3033::ac43:d2022026-08-06 → 2026-08-06 · 2 obs
○ 2026-06-16 03:29:04
● 2026-08-06 16:49:16
●A2606:4700:3034::6815:42f32026-08-06 → 2026-08-06 · 2 obs
○ 2026-06-16 03:29:04
● 2026-08-06 16:49:16
○A2606:4700:3035::6815:42f32026-03-05 → 2026-05-26 · 4 obs
● 2026-03-05 05:43:46
● 2026-05-26 06:10:28
○ 2026-06-16 03:29:04
○ 2026-08-06 16:49:16
○A2a06:98c1:3120::2026-06-16 → 2026-06-16 · 3 obs
○ 2026-05-26 06:10:28
● 2026-06-16 03:29:04
○ 2026-08-06 16:49:16
○A2a06:98c1:3121::2026-06-16 → 2026-06-16 · 3 obs
○ 2026-05-26 06:10:28
● 2026-06-16 03:29:04
○ 2026-08-06 16:49:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, d.gtld-servers.net, m.gtld-servers.net, e.gtld-servers.net...-
37sd.comguss.ns.cloudflare.com, monroe.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.172

NS records: guss.ns.cloudflare.com, monroe.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 37sd.com (unsigned zone)

⏱️ Timing

Total: 113ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.210.2, 104.21.66.243
AAAA22606:4700:3034::6815:42f3, 2606:4700:3033::ac43:d202
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

www.37sd.com resolves to four IP addresses: 104.21.66.243, 172.67.210.2, 2606:4700:3033::ac43:d202 and 2606:4700:3034::6815:42f3.

Among the host names that share IP numbers with www.37sd.com are gdoujin.cn, ethansemone.com, indiaheadline.in and two others.