buua.org - robtex.com
buua.org
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.digitalocean.com ⭐ | ||||||
| A | 2606:4700:52::ac40:34d2🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.digitalocean.com | ||||||
| A | 172.64.52.210🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns1.digitalocean.com | ||||||
| NS | ns2.digitalocean.com | ||||||
| A | 2606:4700:5a::ac40:3515🇺🇸 Cloudflare2606:4700:5a::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.digitalocean.com | ||||||
| A | 172.64.53.21🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns2.digitalocean.com | ||||||
| NS | ns3.digitalocean.com | ||||||
| A | 2606:4700:52::ac40:31d1🇺🇸 Cloudflare2606:4700:52::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.digitalocean.com | ||||||
| A | 172.64.49.209🇺🇸 Cloudflare172.64.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ns3.digitalocean.com | ||||||
| MX | mail.buua.org ⭐ | ||||||
| A | 207.246.72.200🇺🇸 AS-VULTR207.246.64.0/20 Vultr Assigned Prefix | ||||||
| TXT | v=spf1 mx ip4:207.246.72.200/32 include:_spf.protonmail.ch -all | ||||||
| SOA | ns1.digitalocean.comhostmaster@buua.org serial=0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1784390516 | ||||||
Subdomains
mail.buua.org |
Same first word
Similar names
DNS History
15 records (4 active, 11 former)
○NSdns1.registrar-servers.com2015-04-25 → 2017-03-21 · 4 obs
● 2017-03-21 20:56:24
○ 2026-07-01 12:53:38
○ 2026-07-18 16:15:26
○NSdns2.registrar-servers.com2015-04-25 → 2017-03-21 · 4 obs
● 2017-03-21 20:56:24
○ 2026-07-01 12:53:38
○ 2026-07-18 16:15:26
○NSdns3.registrar-servers.com2015-04-25 → 2017-03-21 · 4 obs
● 2017-03-21 20:56:24
○ 2026-07-01 12:53:38
○ 2026-07-18 16:15:26
○NSdns4.registrar-servers.com2015-04-25 → 2017-03-21 · 4 obs
● 2017-03-21 20:56:24
○ 2026-07-01 12:53:38
○ 2026-07-18 16:15:26
○NSdns5.registrar-servers.com2015-04-25 → 2017-03-21 · 4 obs
● 2017-03-21 20:56:24
○ 2026-07-01 12:53:38
○ 2026-07-18 16:15:26
●NSns1.digitalocean.com2026-07-01 → 2026-07-18 · 3 obs
● 2026-07-01 12:53:38
● 2026-07-18 16:15:26
●NSns2.digitalocean.com2026-07-01 → 2026-07-18 · 3 obs
● 2026-07-01 12:53:38
● 2026-07-18 16:15:26
●NSns3.digitalocean.com2026-07-01 → 2026-07-18 · 3 obs
● 2026-07-01 12:53:38
● 2026-07-18 16:15:26
○MXeforward1.registrar-servers.com2015-09-24 → 2017-03-21 · 4 obs
● 2017-03-21 20:56:24
○ 2026-07-01 12:53:38
○ 2026-07-18 16:15:26
○MXeforward2.registrar-servers.com2015-09-24 → 2017-03-21 · 4 obs
● 2017-03-21 20:56:24
○ 2026-07-01 12:53:38
○ 2026-07-18 16:15:26
○MXeforward3.registrar-servers.com2015-09-24 → 2017-03-21 · 4 obs
● 2017-03-21 20:56:24
○ 2026-07-01 12:53:38
○ 2026-07-18 16:15:26
○MXeforward4.registrar-servers.com2015-09-24 → 2017-03-21 · 4 obs
● 2017-03-21 20:56:24
○ 2026-07-01 12:53:38
○ 2026-07-18 16:15:26
○MXeforward5.registrar-servers.com2015-09-24 → 2017-03-21 · 4 obs
● 2017-03-21 20:56:24
○ 2026-07-01 12:53:38
○ 2026-07-18 16:15:26
●MXmail.buua.org2026-07-01 → 2026-07-18 · 3 obs
● 2026-07-01 12:53:38
● 2026-07-18 16:15:26
○A127.0.0.12015-04-25 → 2016-03-27 · 4 obs
● 2016-03-27 00:10:38
○ 2016-08-08 02:11:14
○ 2026-07-18 16:15:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, d0.org.afilias-nst.org, b2.org.afilias-nst.org | - |
| buua.org | ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com | - |
✅ Authoritative Response
Server:172.64.52.210
NS records: ns1.digitalocean.com, ns2.digitalocean.com, ns3.digitalocean.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for buua.org (unsigned zone)
⏱️ Timing
Total: 668ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns2.digitalocean.com, ns1.digitalocean.com... |
| MX | 1 | mail.buua.org (pri: 5) |
| TXT | 1 | v=spf1 mx ip4:207.246.72.200/32 include: |
| SOA | 1 | ns1.digitalocean.com hostmaster.buua.org |
Analysis
Hierarchy
The domain mail.buua.org falls under the parent buua.org.
Name Servers
DNS for buua.org is handled by three authoritative name servers: ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com.
At least some of buua.org's name servers are shared with other domains, for example schengenareacalculator.com, garnenterprise.com, 1.0.0.4.3.b.2.7.4.0.0.0.0.0.0.0.1.d.0.0.0.0.4.0.0.8.8.a.4.0.6.2.ip6.arpa and two more.
Three hostnames — ns1.digitalocean.com, ns2.digitalocean.com and ns3.digitalocean.com — each have two IP addresses: ns1.digitalocean.com has 172.64.52.210 and 2606:4700:52::ac40:34d2, ns2.digitalocean.com has 172.64.53.21 and 2606:4700:5a::ac40:3515, and ns3.digitalocean.com has 172.64.49.209 and 2606:4700:52::ac40:31d1.
Mail Servers
buua.org routes its mail through a single mail server, mail.buua.org.
mail.buua.org has exactly one IP number: 207.246.72.200.