bt-81.com - robtex.com
bt-81.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::ac43:97d9🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::6815:110🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.1.16Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.151.217🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | duke.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b6e🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c16e🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:216e🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 108.162.193.110🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 172.64.33.110🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| A | 173.245.59.110🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | duke.ns.cloudflare.com | ||||||
| NS | raquel.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:26d2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | raquel.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2d2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | raquel.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22d2🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | raquel.ns.cloudflare.com | ||||||
| A | 108.162.194.210🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | raquel.ns.cloudflare.com | ||||||
| A | 162.159.38.210Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | raquel.ns.cloudflare.com | ||||||
| A | 172.64.34.210🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | raquel.ns.cloudflare.com | ||||||
| TXT | google-site-verification=4CMzZUd_vg37X-z0P7U6xeroDoAIR72HbYjZVB-aZBs | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.1.16, 172.67.151.217 | ||||||
| IPv6 | 2606:4700:3030::ac43:97d9, 2606:4700:3033::6815:110 | ||||||
| SOA | duke.ns.cloudflare.comdns@cloudflare.com serial=2398870314 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774414817 | ||||||
Same first word
bt-81.com |
DNS History
6 records (6 active, 0 former)
●NSduke.ns.cloudflare.com2026-03-23 → 2026-03-25 · 2 obs
● 2026-03-25 05:21:26
●NSraquel.ns.cloudflare.com2026-03-23 → 2026-03-25 · 2 obs
● 2026-03-25 05:21:26
●A104.21.1.162026-03-23 → 2026-03-25 · 2 obs
● 2026-03-25 05:21:26
●A172.67.151.2172026-03-23 → 2026-03-25 · 2 obs
● 2026-03-25 05:21:26
●A2606:4700:3030::ac43:97d92026-03-23 → 2026-03-25 · 2 obs
● 2026-03-25 05:21:26
●A2606:4700:3033::6815:1102026-03-23 → 2026-03-25 · 2 obs
● 2026-03-25 05:21:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| bt-81.com | duke.ns.cloudflare.com, raquel.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.193.110
NS records: duke.ns.cloudflare.com, raquel.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bt-81.com (unsigned zone)
⏱️ Timing
Total: 125ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.1.16, 172.67.151.217 |
| AAAA | 2 | 2606:4700:3033::6815:110, 2606:4700:3030::ac43:97d9 |
| NS | 2 | duke.ns.cloudflare.com, raquel.ns.cloudflare.com |
| TXT | 1 | google-site-verification=4CMzZUd_vg37X-z |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | duke.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (duke.ns.cloudflare.com, duke.ns.cloudflare.com, duke.ns.cloudflare.com...)
Analysis
IP Addresses
bt-81.com maps to four IP numbers: 2606:4700:3030::ac43:97d9, 2606:4700:3033::6815:110, 104.21.1.16 and 172.67.151.217.
Other host names, for instance mail.estudioagrimensuranosedabock.com, zfxlcautcoger.store, hongshengjituan.cn, www.zhy-sz.com and tridex.co.uk share IP numbers with bt-81.com.
Name Servers
Two name servers duke.ns.cloudflare.com and raquel.ns.cloudflare.com handle delegation for bt-81.com.
bt-81.com uses the same name server setup as other domains, for example ready.art, ca-11.com, grd999.com, animalmarket.ma and gobado.com.
bt-81.com partially shares name servers with other domains; examples include a3cpe.com, 6868ft.com, (0x736578)buddy.be, darkangel.net and qconcept.com.hk.
These name servers are often used with the name servers alexis.ns.cloudflare.com and iris.ns.cloudflare.com.
Host names with six IP numbers: duke.ns.cloudflare.com points to: 2606:4700:58::adf5:3b6e, 2803:f800:50::6ca2:c16e, 2a06:98c1:50::ac40:216e, 108.162.193.110, 172.64.33.110 and 173.245.59.110; raquel.ns.cloudflare.com points to: 2606:4700:50::a29f:26d2, 2803:f800:50::6ca2:c2d2, 2a06:98c1:50::ac40:22d2, 108.162.194.210, 162.159.38.210 and 172.64.34.210.