www.blockstrong.com - robtex.com

www.blockstrong.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:8ffa🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:4753🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.71.83Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.143.250🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.71.83, 172.67.143.250
IPv6 hints2606:4700:3032::ac43:8ffa, 2606:4700:3035::6815:4753
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=91, name=cloudflare-ech.com

blockstrong.com

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:8ffa🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:4753🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.71.83Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.143.250🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbrad.ns.cloudflare.com ⭐
NSdeb.ns.cloudflare.com
MX_dc-mx.5ea8d38620a8.blockstrong.com ⭐
TXTv=spf1 a mx include:websitewelcome.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.71.83, 172.67.143.250
IPv6 hints2606:4700:3032::ac43:8ffa, 2606:4700:3035::6815:4753
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=91, name=cloudflare-ech.com
SOAbrad.ns.cloudflare.comdns@cloudflare.com serial=2400898246

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DNS History

8 records (4 active, 4 former)

2020202120222023202420252026A104.21.71.83172.67.143.2502606:4700:3032::ac43:8ffa2606:4700:3035::6815:4753104.31.94.90104.31.95.902606:4700:30::681f:5e5a2606:4700:30::681f:5f5a
●A104.21.71.832026-03-31 → 2026-05-11 · 3 obs
○ 2019-12-24 13:20:40
● 2026-03-31 17:31:24
● 2026-05-11 02:35:46
○A104.31.94.902019-12-24 → 2019-12-24 · 3 obs
● 2019-12-24 13:20:40
○ 2026-03-31 17:31:24
○ 2026-05-11 02:35:46
○A104.31.95.902019-12-24 → 2019-12-24 · 3 obs
● 2019-12-24 13:20:40
○ 2026-03-31 17:31:24
○ 2026-05-11 02:35:46
●A172.67.143.2502026-03-31 → 2026-05-11 · 3 obs
○ 2019-12-24 13:20:40
● 2026-03-31 17:31:24
● 2026-05-11 02:35:46
○A2606:4700:30::681f:5e5a2019-12-24 → 2019-12-24 · 3 obs
● 2019-12-24 13:20:40
○ 2026-03-31 17:31:24
○ 2026-05-11 02:35:46
○A2606:4700:30::681f:5f5a2019-12-24 → 2019-12-24 · 3 obs
● 2019-12-24 13:20:40
○ 2026-03-31 17:31:24
○ 2026-05-11 02:35:46
●A2606:4700:3032::ac43:8ffa2026-03-31 → 2026-05-11 · 3 obs
○ 2019-12-24 13:20:40
● 2026-03-31 17:31:24
● 2026-05-11 02:35:46
●A2606:4700:3035::6815:47532026-03-31 → 2026-05-11 · 3 obs
○ 2019-12-24 13:20:40
● 2026-03-31 17:31:24
● 2026-05-11 02:35:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coml.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...-
blockstrong.combrad.ns.cloudflare.com, deb.ns.cloudflare.com12 records

✅ Authoritative Response

Server:108.162.193.105

NS records: brad.ns.cloudflare.com, deb.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for blockstrong.com (unsigned zone)

⏱️ Timing

Total: 205ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.143.250, 104.21.71.83
AAAA22606:4700:3035::6815:4753, 2606:4700:3032::ac43:8ffa
HTTPS1{"priority":1,"target":".","alpn":["h3",

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

www.blockstrong.com points to four IP numbers: 2606:4700:3032::ac43:8ffa, 2606:4700:3035::6815:4753, 104.21.71.83 and 172.67.143.250.

For instance, other host names inhealth.eu, marketing.connect.media, zyfefiy.com, www.barato7vez.xyz and xn--vg1b002a5sdzqo.kr share IP numbers with www.blockstrong.com.