classroom76.app - robtex.com
classroom76.app
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::6815:828🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:9cc8🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.8.40Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.156.200🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | agustin.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c5a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | agustin.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c35a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | agustin.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:235a🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | agustin.ns.cloudflare.com | ||||||
| A | 108.162.195.90🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | agustin.ns.cloudflare.com | ||||||
| A | 162.159.44.90Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | agustin.ns.cloudflare.com | ||||||
| A | 172.64.35.90🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | agustin.ns.cloudflare.com | ||||||
| NS | zoe.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3a95🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zoe.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c095🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | zoe.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2095🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | zoe.ns.cloudflare.com | ||||||
| A | 108.162.192.149🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zoe.ns.cloudflare.com | ||||||
| A | 172.64.32.149🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zoe.ns.cloudflare.com | ||||||
| A | 173.245.58.149🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zoe.ns.cloudflare.com | ||||||
| MX | _dc-mx.784f4ec96c6d.classroom76.app ⭐ | ||||||
| A | 66.198.240.16🇺🇸 vercara-udos66.198.240.0/24 | ||||||
| PTR | mi3-ss110.a2hosting.com | ||||||
| TXT | google-site-verification=lU5dUrtCRZJRsy3vFnrGzREQAvBHyIJj6RyKBr40NfI | ||||||
| TXT | v=spf1 +a +mx +ip4:66.198.240.16 include:spf.a2hosting.com ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.8.40, 172.67.156.200 | ||||||
| IPv6 | 2606:4700:3034::6815:828, 2606:4700:3036::ac43:9cc8 | ||||||
| SOA | agustin.ns.cloudflare.comdns@cloudflare.com serial=2396744064 | ||||||
app
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=101427 | ||||||
Same first word
classroom76.app |
Similar names
DNS History
11 records (7 active, 4 former)
●NSagustin.ns.cloudflare.com2026-02-26 → 2026-03-24 · 2 obs
● 2026-03-24 04:23:38
●NSzoe.ns.cloudflare.com2026-02-26 → 2026-03-24 · 2 obs
● 2026-03-24 04:23:38
●MX_dc-mx.784f4ec96c6d.classroom76.app2026-02-26 → 2026-03-24 · 2 obs
● 2026-03-24 04:23:38
●A104.21.8.402026-02-26 → 2026-03-24 · 3 obs
○ 2026-03-14 00:29:56
● 2026-03-24 04:23:38
●A172.67.156.2002026-02-26 → 2026-03-24 · 3 obs
○ 2026-03-14 00:29:56
● 2026-03-24 04:23:38
○A188.114.96.02026-03-14 → 2026-03-14 · 3 obs
● 2026-03-14 00:29:56
○ 2026-03-24 04:23:38
○A188.114.97.02026-03-14 → 2026-03-14 · 3 obs
● 2026-03-14 00:29:56
○ 2026-03-24 04:23:38
●A2606:4700:3034::6815:8282026-02-26 → 2026-03-24 · 3 obs
○ 2026-03-14 00:29:56
● 2026-03-24 04:23:38
●A2606:4700:3036::ac43:9cc82026-02-26 → 2026-03-24 · 3 obs
○ 2026-03-14 00:29:56
● 2026-03-24 04:23:38
○A2a06:98c1:3120::2026-03-14 → 2026-03-14 · 3 obs
● 2026-03-14 00:29:56
○ 2026-03-24 04:23:38
○A2a06:98c1:3121::2026-03-14 → 2026-03-14 · 3 obs
● 2026-03-14 00:29:56
○ 2026-03-24 04:23:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| app | ns-tld4.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com... | - |
| classroom76.app | agustin.ns.cloudflare.com, zoe.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.35.90
NS records: agustin.ns.cloudflare.com, zoe.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classroom76.app (unsigned zone)
⏱️ Timing
Total: 384ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.156.200, 104.21.8.40 |
| AAAA | 2 | 2606:4700:3034::6815:828, 2606:4700:3036::ac43:9cc8 |
| NS | 2 | agustin.ns.cloudflare.com, zoe.ns.cloudflare.com |
| MX | 1 | _dc-mx.784f4ec96c6d.classroom76.app (pri |
| TXT | 2 | google-site-verification=lU5dUrtCRZJRsy3, v=spf1 +a +mx +ip4:66.198.240.16 include |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | agustin.ns.cloudflare.com dns.cloudflare |
Analysis
IP Addresses
classroom76.app points to four IP numbers: 2606:4700:3034::6815:828, 2606:4700:3036::ac43:9cc8, 104.21.8.40 and 172.67.156.200.
Other host names, for instance 64482cf.qmzzu.care, drumplastik.com, motorists.org, www.reflectivesurface.com and resultasaservice.com share IP numbers with classroom76.app.
Name Servers
classroom76.app's delegation is to two name servers agustin.ns.cloudflare.com and zoe.ns.cloudflare.com.
classroom76.app shares the same name server configuration as other domains, such as charm.com.pl, sg-liveheadlinehub.cfd, luaz.ru, olliemclean.com and geometrydashspam.com.
classroom76.app at least partially shares its name servers with other domains, for instance sionghow.com.my, systramail.com, paris-(0x706f726e).net, whey.us and infopraias.com.
These name servers are commonly used alongside sarah.ns.cloudflare.com and izabella.ns.cloudflare.com.
Host names with six IP numbers:
agustin.ns.cloudflare.com points to: 2606:4700:58::a29f:2c5a, 2803:f800:50::6ca2:c35a, 2a06:98c1:50::ac40:235a, 108.162.195.90, 162.159.44.90 and 172.64.35.90.
zoe.ns.cloudflare.com points to: 2606:4700:50::adf5:3a95, 2803:f800:50::6ca2:c095, 2a06:98c1:50::ac40:2095, 108.162.192.149, 172.64.32.149 and 173.245.58.149.
Mail Servers
classroom76.app is served by a single mail server, _dc-mx.784f4ec96c6d.classroom76.app.
_dc-mx.784f4ec96c6d.classroom76.app points to IP number 66.198.240.16.