academic21.com - robtex.com
academic21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:4262🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:9e72🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.66.98Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.158.114🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | lilyana.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:26f4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lilyana.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2f4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | lilyana.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22f4🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | lilyana.ns.cloudflare.com | ||||||
| A | 108.162.194.244🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lilyana.ns.cloudflare.com | ||||||
| A | 162.159.38.244Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lilyana.ns.cloudflare.com | ||||||
| A | 172.64.34.244🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lilyana.ns.cloudflare.com | ||||||
| NS | seamus.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2cb8🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | seamus.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c3b8🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | seamus.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:23b8🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | seamus.ns.cloudflare.com | ||||||
| A | 108.162.195.184🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | seamus.ns.cloudflare.com | ||||||
| A | 162.159.44.184Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | seamus.ns.cloudflare.com | ||||||
| A | 172.64.35.184🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | seamus.ns.cloudflare.com | ||||||
| MX | mail.academic21.com ⭐ | ||||||
| A | 103.18.247.122🇲🇾 EXABYTES-AS-AP103.18.244.0/22 Exabytes Ecommerce Sdn.Bhd. 1-18-8 Suntech Penang Cybercity Lintang Mayang Pasir 1 | ||||||
| PTR | server.ia-community.com | ||||||
| TXT | v=DMARC1; p=none; | ||||||
| TXT | v=spf1 +mx +a +ip4:103.18.247.122 ~all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.66.98, 172.67.158.114 | ||||||
| IPv6 | 2606:4700:3030::6815:4262, 2606:4700:3033::ac43:9e72 | ||||||
| SOA | lilyana.ns.cloudflare.comdns@cloudflare.com serial=2398013833 | ||||||
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=1774733847 | ||||||
Same first word
academic21.com |
DNS History
9 records (7 active, 2 former)
●NSlilyana.ns.cloudflare.com2026-03-06 → 2026-03-28 · 3 obs
● 2026-03-06 08:59:12
● 2026-03-28 21:50:34
○NSpridns.iwebcities.com2007-11-14 → 2007-11-14 · 3 obs
○ 2015-11-09 05:57:52
○ 2026-03-28 21:50:34
●NSseamus.ns.cloudflare.com2026-03-06 → 2026-03-28 · 3 obs
● 2026-03-06 08:59:12
● 2026-03-28 21:50:34
○NSsecdns.iwebcities.com2007-11-14 → 2007-11-14 · 3 obs
○ 2015-11-09 05:57:52
○ 2026-03-28 21:50:34
●MXmail.academic21.com2026-03-06 → 2026-03-28 · 2 obs
● 2026-03-28 21:50:34
●A104.21.66.982026-03-06 → 2026-03-28 · 2 obs
● 2026-03-28 21:50:34
●A172.67.158.1142026-03-06 → 2026-03-28 · 2 obs
● 2026-03-28 21:50:34
●A2606:4700:3030::6815:42622026-03-06 → 2026-03-28 · 2 obs
● 2026-03-28 21:50:34
●A2606:4700:3033::ac43:9e722026-03-06 → 2026-03-28 · 2 obs
● 2026-03-28 21:50:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, d.gtld-servers.net, e.gtld-servers.net, l.gtld-servers.net... | - |
| academic21.com | lilyana.ns.cloudflare.com, seamus.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.195.184
NS records: lilyana.ns.cloudflare.com, seamus.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for academic21.com (unsigned zone)
⏱️ Timing
Total: 299ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.158.114, 104.21.66.98 |
| AAAA | 2 | 2606:4700:3030::6815:4262, 2606:4700:3033::ac43:9e72 |
| NS | 2 | lilyana.ns.cloudflare.com, seamus.ns.cloudflare.com |
| MX | 1 | mail.academic21.com (pri: 10) |
| TXT | 2 | v=DMARC1; p=none;, v=spf1 +mx +a +ip4:103.18.247.122 ~all |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | lilyana.ns.cloudflare.com dns.cloudflare |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (lilyana.ns.cloudflare.com, lilyana.ns.cloudflare.com, lilyana.ns.cloudflare.com...)
Analysis
IP Addresses
academic21.com points to four IP numbers: 2606:4700:3030::6815:4262, 2606:4700:3033::ac43:9e72, 104.21.66.98 and 172.67.158.114.
Other host names, for instance contest.uz, mail.fox-fan.ru, locguel.com.br, dresdirekt.com and www.chateauversalles.fr share IP numbers with academic21.com.
Name Servers
Delegation for academic21.com rests with two name servers, lilyana.ns.cloudflare.com and seamus.ns.cloudflare.com.
academic21.com shares the same name server setup as other domains, including orenses.net, andaluz.cl, mvhremote.net, ns1.blackhatters.com and industryconnect.ai.
academic21.com at least partially shares name servers with other domains, for instance deca.be, 1betplay.com, voidpointer.net, factretro.com and sdhanyu.com.cn.
these name servers are commonly used with dale.ns.cloudflare.com, gemma.ns.cloudflare.com and zoe.ns.cloudflare.com.
Host names with six IP numbers: lilyana.ns.cloudflare.com points to: 2606:4700:50::a29f:26f4, 2803:f800:50::6ca2:c2f4, 2a06:98c1:50::ac40:22f4, 108.162.194.244, 162.159.38.244 and 172.64.34.244. seamus.ns.cloudflare.com points to: 2606:4700:58::a29f:2cb8, 2803:f800:50::6ca2:c3b8, 2a06:98c1:50::ac40:23b8, 108.162.195.184, 162.159.44.184 and 172.64.35.184.
Mail Servers
academic21.com is handled by a single mail server, mail.academic21.com.
mail.academic21.com points to a single IP: 103.18.247.122.