blockchainschoolbcs.com - robtex.com
blockchainschoolbcs.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:87b8🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::6815:1a54🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.26.84Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.135.184🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | bart.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b47🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | bart.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c147🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | bart.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2147🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | bart.ns.cloudflare.com | ||||||
| A | 108.162.193.71🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | bart.ns.cloudflare.com | ||||||
| A | 172.64.33.71🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | bart.ns.cloudflare.com | ||||||
| A | 173.245.59.71🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | bart.ns.cloudflare.com | ||||||
| NS | sierra.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:26f5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sierra.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2f5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | sierra.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22f5🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | sierra.ns.cloudflare.com | ||||||
| A | 108.162.194.245🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sierra.ns.cloudflare.com | ||||||
| A | 162.159.38.245Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sierra.ns.cloudflare.com | ||||||
| A | 172.64.34.245🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sierra.ns.cloudflare.com | ||||||
| MX | mail.blockchainschoolbcs.com ⭐ | ||||||
| A | 185.109.170.140🇬🇧 UKSERVERS-AS185.109.168.0/22 UK Dedicated Servers Limited | ||||||
| PTR | ukdans100.directadminhostserver.com | ||||||
| TXT | brevo-code:079f8d4b0bdf557c10f0346d519ccd62 | ||||||
| TXT | facebook-domain-verification=kgjjfjl6azpfqw57nla41qm47nurtc | ||||||
| TXT | google-site-verification=T4NnBV8Ba9IrSWWKM92Nea6yTm7R7heWyVTPdDn3hIA | ||||||
| TXT | google-site-verification=m_exVfgOR9qv-qsi6lLDl8HDCi9R7kJQxsB_nA0sNYU | ||||||
| TXT | v=spf1 a mx ip4:185.109.170.140 include:relay.mailchannels.net ip6:2a01:a500:... | ||||||
| TXT | zoho-verification=zb34375198.zmverify.zoho.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.26.84, 172.67.135.184 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:87b8, 2606:4700:3035::6815:1a54 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=136, name=cloudflare-ech.com | ||||||
| SOA | bart.ns.cloudflare.comdns@cloudflare.com serial=2410403978 | ||||||
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=1785120202 | ||||||
Subdomains
mail.blockchainschoolbcs.com |
wallet-login.blockchainschoolbcs.com |
Same first word
blockchainschoolbcs.com |
DNS History
13 records (7 active, 6 former)
●NSbart.ns.cloudflare.com2026-04-15 → 2026-07-27 · 2 obs
● 2026-07-27 02:56:52
●NSsierra.ns.cloudflare.com2026-04-15 → 2026-07-27 · 2 obs
● 2026-07-27 02:56:52
●MXmail.blockchainschoolbcs.com2026-04-15 → 2026-07-27 · 2 obs
● 2026-07-27 02:56:52
●A104.21.26.842026-04-15 → 2026-07-27 · 6 obs
● 2026-05-22 22:42:24
○ 2026-05-24 15:11:44
○ 2026-05-27 18:54:54
● 2026-06-11 14:49:54
● 2026-07-27 02:56:52
●A172.67.135.1842026-04-15 → 2026-07-27 · 6 obs
● 2026-05-22 22:42:24
○ 2026-05-24 15:11:44
○ 2026-05-27 18:54:54
● 2026-06-11 14:49:54
● 2026-07-27 02:56:52
○A188.114.96.02026-05-24 → 2026-05-27 · 5 obs
● 2026-05-24 15:11:44
● 2026-05-27 18:54:54
○ 2026-06-11 14:49:54
○ 2026-07-27 02:56:52
○A188.114.97.02026-05-24 → 2026-05-27 · 5 obs
● 2026-05-24 15:11:44
● 2026-05-27 18:54:54
○ 2026-06-11 14:49:54
○ 2026-07-27 02:56:52
●A2606:4700:3031::ac43:87b82026-07-08 → 2026-07-27 · 3 obs
● 2026-07-08 01:18:04
● 2026-07-27 02:56:52
○A2606:4700:3034::6815:1a542026-04-15 → 2026-06-11 · 7 obs
● 2026-05-22 22:42:24
○ 2026-05-24 15:11:44
○ 2026-05-27 18:54:54
● 2026-06-11 14:49:54
○ 2026-07-08 01:18:04
○ 2026-07-27 02:56:52
●A2606:4700:3035::6815:1a542026-07-08 → 2026-07-27 · 3 obs
● 2026-07-08 01:18:04
● 2026-07-27 02:56:52
○A2606:4700:3037::ac43:87b82026-04-15 → 2026-06-11 · 7 obs
● 2026-05-22 22:42:24
○ 2026-05-24 15:11:44
○ 2026-05-27 18:54:54
● 2026-06-11 14:49:54
○ 2026-07-08 01:18:04
○ 2026-07-27 02:56:52
○A2a06:98c1:3120::2026-05-24 → 2026-05-27 · 5 obs
● 2026-05-24 15:11:44
● 2026-05-27 18:54:54
○ 2026-06-11 14:49:54
○ 2026-07-27 02:56:52
○A2a06:98c1:3121::2026-05-24 → 2026-05-27 · 5 obs
● 2026-05-24 15:11:44
● 2026-05-27 18:54:54
○ 2026-06-11 14:49:54
○ 2026-07-27 02:56:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, i.gtld-servers.net, f.gtld-servers.net, e.gtld-servers.net... | - |
| blockchainschoolbcs.com | bart.ns.cloudflare.com, sierra.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.193.71
NS records: bart.ns.cloudflare.com, sierra.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for blockchainschoolbcs.com (unsigned zone)
⏱️ Timing
Total: 113ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.26.84, 172.67.135.184 |
| AAAA | 2 | 2606:4700:3035::6815:1a54, 2606:4700:3031::ac43:87b8 |
| NS | 2 | bart.ns.cloudflare.com, sierra.ns.cloudflare.com |
| MX | 1 | mail.blockchainschoolbcs.com (pri: 10) |
| TXT | 6 | brevo-code:079f8d4b0bdf557c10f0346d519cc, facebook-domain-verification=kgjjfjl6azp... |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | bart.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (bart.ns.cloudflare.com, bart.ns.cloudflare.com, bart.ns.cloudflare.com...)
Analysis
Hierarchy
The parent domain of mail.blockchainschoolbcs.com and wallet-login.blockchainschoolbcs.com is blockchainschoolbcs.com.
IP Addresses
blockchainschoolbcs.com resolves to four IP addresses: 104.21.26.84, 172.67.135.184, 2606:4700:3031::ac43:87b8 and 2606:4700:3035::6815:1a54.
Among the host names that share IP numbers with blockchainschoolbcs.com are uznaipravdu.info, vungry.com, balancedmigration.org and two others.
Name Servers
Two name servers handle the delegation for blockchainschoolbcs.com: bart.ns.cloudflare.com and sierra.ns.cloudflare.com.
blockchainschoolbcs.com has the same name server delegation as a number of other domains, such as rxd-radiant.com, casso.vn, blockminerz.com and two more.
blockchainschoolbcs.com shares at least some of its name servers with other domains, including gazcas.com, alishka.net, finovatewest.com and two others.
These name servers are frequently paired with the name servers hera.ns.cloudflare.com and aiden.ns.cloudflare.com.
Host names resolving to 6 IP numbers:
bart.ns.cloudflare.com resolves to 108.162.193.71, 172.64.33.71 and 173.245.59.71 among others, with 3 other IP addresses in total.
sierra.ns.cloudflare.com resolves to 108.162.194.245, 162.159.38.245 and 172.64.34.245 among others, with 3 other IP addresses in total.
Mail Servers
blockchainschoolbcs.com routes its mail through a single mail server, mail.blockchainschoolbcs.com.
mail.blockchainschoolbcs.com carries a single IP number, which is 185.109.170.140.