a.masterstep.org - robtex.com

a.masterstep.org

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:a5🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:801d🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.0.165Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.128.29🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.0.165, 172.67.128.29
IPv62606:4700:3030::6815:a5, 2606:4700:3035::ac43:801d

masterstep.org

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:a5🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:801d🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.0.165Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.128.29🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSarmfazh.ns.cloudflare.com ⭐
NStori.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4104.21.0.165, 172.67.128.29
IPv62606:4700:3030::6815:a5, 2606:4700:3035::ac43:801d
SOAarmfazh.ns.cloudflare.comdns@cloudflare.com serial=2397631508

Same first word

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DNS History

6 records (4 active, 2 former)

A104.21.0.165172.67.128.292606:4700:3030::6815:a52606:4700:3035::ac43:801d172.64.80.12606:4700:130:436c:6f75:6466:6c61:7265
●A104.21.0.1652026-02-27 → 2026-02-27 · 2 obs
○ 2026-02-26 10:26:54
● 2026-02-27 02:06:16
○A172.64.80.12026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 10:26:54
○ 2026-02-27 02:06:16
●A172.67.128.292026-02-27 → 2026-02-27 · 2 obs
○ 2026-02-26 10:26:54
● 2026-02-27 02:06:16
○A2606:4700:130:436c:6f75:6466:6c61:72652026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 10:26:54
○ 2026-02-27 02:06:16
●A2606:4700:3030::6815:a52026-02-27 → 2026-02-27 · 2 obs
○ 2026-02-26 10:26:54
● 2026-02-27 02:06:16
●A2606:4700:3035::ac43:801d2026-02-27 → 2026-02-27 · 2 obs
○ 2026-02-26 10:26:54
● 2026-02-27 02:06:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
masterstep.orgarmfazh.ns.cloudflare.com, tori.ns.cloudflare.com-

✅ Authoritative Response

Server: 172.64.32.231

NS records: armfazh.ns.cloudflare.com, tori.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for masterstep.org (unsigned zone)

⏱️ Timing

Total: 456ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.0.165, 172.67.128.29
AAAA22606:4700:3030::6815:a5, 2606:4700:3035::ac43:801d
HTTPS1{"priority":1,"target":".","alpn":["h3",

AI analysis

a.masterstep.org maps to four IP numbers: 2606:4700:3030::6815:a5, 2606:4700:3035::ac43:801d, 104.21.0.165 and 172.67.128.29.

Other host names such as constructionknowledge.net, www-(0x78766964656f73)-com.tattoo, prpr.cat, mail.linenrental.co.uk and a.969557177.workers.dev share IPs with a.masterstep.org.