matrix.build - robtex.com
matrix.build
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3036::ac43:ba8d🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::6815:5c33🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.92.51Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.186.141🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | cortney.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a57🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cortney.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c057🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | cortney.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2057🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | cortney.ns.cloudflare.com | ||||||
| A | 108.162.192.87🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cortney.ns.cloudflare.com | ||||||
| A | 172.64.32.87🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cortney.ns.cloudflare.com | ||||||
| A | 173.245.58.87🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | cortney.ns.cloudflare.com | ||||||
| NS | rohin.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c99🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rohin.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c399🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | rohin.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2399🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | rohin.ns.cloudflare.com | ||||||
| A | 108.162.195.153🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rohin.ns.cloudflare.com | ||||||
| A | 162.159.44.153Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rohin.ns.cloudflare.com | ||||||
| A | 172.64.35.153🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rohin.ns.cloudflare.com | ||||||
| TXT | google-site-verification=-XaZN-C_dYI2duTe22DFQt3-ml-OAkdKJjPeVfwo5y8 | ||||||
| TXT | google-site-verification=uOW0QtHjkSRawicCS-vBGnTDqTMSvn5vsPaCXhhPKu8 | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.92.51, 172.67.186.141 | ||||||
| IPv6 hints | 2606:4700:3036::ac43:ba8d, 2606:4700:3037::6815:5c33 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=91, name=cloudflare-ech.com | ||||||
| SOA | cortney.ns.cloudflare.comdns@cloudflare.com serial=2409510995 | ||||||
build
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | a.nic.build | ||||||
| NS | b.nic.build | ||||||
| NS | c.nic.build | ||||||
| NS | d.nic.build | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=1784687408 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NScortney.ns.cloudflare.com2026-07-20 → 2026-07-22 · 2 obs
● 2026-07-22 02:36:26
●NSrohin.ns.cloudflare.com2026-07-20 → 2026-07-22 · 2 obs
● 2026-07-22 02:36:26
●A104.21.92.512026-07-20 → 2026-07-22 · 2 obs
● 2026-07-22 02:36:26
●A172.67.186.1412026-07-20 → 2026-07-22 · 2 obs
● 2026-07-22 02:36:26
●A2606:4700:3036::ac43:ba8d2026-07-20 → 2026-07-22 · 2 obs
● 2026-07-22 02:36:26
●A2606:4700:3037::6815:5c332026-07-20 → 2026-07-22 · 2 obs
● 2026-07-22 02:36:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| build | a.nic.build, b.nic.build, c.nic.build, d.nic.build | 8 records |
| matrix.build | rohin.ns.cloudflare.com, cortney.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.87
NS records: rohin.ns.cloudflare.com, cortney.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for matrix.build (unsigned zone)
⏱️ Timing
Total: 413ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.186.141, 104.21.92.51 |
| AAAA | 2 | 2606:4700:3037::6815:5c33, 2606:4700:3036::ac43:ba8d |
| NS | 2 | cortney.ns.cloudflare.com, rohin.ns.cloudflare.com |
| TXT | 2 | google-site-verification=-XaZN-C_dYI2duT, google-site-verification=uOW0QtHjkSRawic |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | cortney.ns.cloudflare.com dns.cloudflare |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a.nic.build, a.nic.build, b.nic.build...)
Analysis
IP Addresses
matrix.build points to the four IP addresses 104.21.92.51, 172.67.186.141, 2606:4700:3036::ac43:ba8d and 2606:4700:3037::6815:5c33.
Among the host names that share IP numbers with matrix.build are s3.six-degrees.io, aoiro-shinkoku.net, times-planet.info and two others.
Name Servers
matrix.build has two authoritative name servers — cortney.ns.cloudflare.com and rohin.ns.cloudflare.com.
matrix.build has the same name server delegation as a number of other domains, such as broadlink.co.za, thebldgroup.com, ob201.co.za and two more.
There is at least partial name server overlap between matrix.build and other domains — uanxin.com, jac.kr, bidefi.com and two more among them.
These name servers are routinely deployed together with the name servers kira.ns.cloudflare.com.
Host names resolving to 6 IP numbers:
cortney.ns.cloudflare.com points to 108.162.192.87, 172.64.32.87, 173.245.58.87 and 3 other IP addresses.
rohin.ns.cloudflare.com points to 108.162.195.153, 162.159.44.153, 172.64.35.153 and 3 other IP addresses.