udacity.cr - robtex.com
udacity.cr
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::ac43:820a🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::6815:312🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.3.18Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.130.10🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | ingrid.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3aa5🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ingrid.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0a5🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | ingrid.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20a5🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | ingrid.ns.cloudflare.com | ||||||
| A | 108.162.192.165🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ingrid.ns.cloudflare.com | ||||||
| A | 172.64.32.165🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ingrid.ns.cloudflare.com | ||||||
| A | 173.245.58.165🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ingrid.ns.cloudflare.com | ||||||
| NS | kai.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bbc🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | kai.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1bc🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | kai.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21bc🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | kai.ns.cloudflare.com | ||||||
| A | 108.162.193.188🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | kai.ns.cloudflare.com | ||||||
| A | 172.64.33.188🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | kai.ns.cloudflare.com | ||||||
| A | 173.245.59.188🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | kai.ns.cloudflare.com | ||||||
| TXT | v=spf1 -all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.3.18, 172.67.130.10 | ||||||
| IPv6 | 2606:4700:3033::ac43:820a, 2606:4700:3037::6815:312 | ||||||
| SOA | ingrid.ns.cloudflare.comdns@cloudflare.com serial=2397768176 | ||||||
cr
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | dns.nic.cr ⭐ | ||||||
| NS | a.lactld.org ⚠️ Not in parent delegation | ||||||
| NS | ca1.nic.cr | ||||||
| NS | ca2.nic.cr | ||||||
| NS | de.nic.cr | ||||||
| NS | p.nic.cr | ||||||
| SOA | dns.nic.crti@nic.cr serial=1774239304 | ||||||
Same first word
Similar names
taiyudc.com |
dacuity.com |
auditcy.com |
ycaudit.com |
caduity.com |
adcuity.com |
cdtaiyu.com |
audcity.com |
daucity.de |
tycuida.com |
cdyutai.com |
audcity.de |
cyudati.com |
cyaudit.com |
DNS History
6 records (6 active, 0 former)
●NSingrid.ns.cloudflare.com2026-02-23 → 2026-03-23 · 2 obs
● 2026-03-23 08:38:24
●NSkai.ns.cloudflare.com2026-02-23 → 2026-03-23 · 2 obs
● 2026-03-23 08:38:24
●A104.21.3.182026-02-23 → 2026-03-23 · 2 obs
● 2026-03-23 08:38:24
●A172.67.130.102026-02-23 → 2026-03-23 · 2 obs
● 2026-03-23 08:38:24
●A2606:4700:3033::ac43:820a2026-02-23 → 2026-03-23 · 2 obs
● 2026-03-23 08:38:24
●A2606:4700:3037::6815:3122026-02-23 → 2026-03-23 · 2 obs
● 2026-03-23 08:38:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cr | a.lactld.org, p.nic.cr, de.nic.cr, ca1.nic.cr... | 12 records |
| udacity.cr | kai.ns.cloudflare.com, ingrid.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.165
NS records: kai.ns.cloudflare.com, ingrid.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for udacity.cr (unsigned zone)
⏱️ Timing
Total: 489ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.3.18, 172.67.130.10 |
| AAAA | 2 | 2606:4700:3033::ac43:820a, 2606:4700:3037::6815:312 |
| NS | 2 | ingrid.ns.cloudflare.com, kai.ns.cloudflare.com |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | ingrid.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 12
In-bailiwick: 10 (p.nic.cr, p.nic.cr, de.nic.cr...)
Out-of-bailiwick: 2 (a.lactld.org, a.lactld.org)
Analysis
IP Addresses
udacity.cr refers to four IP numbers: 2606:4700:3033::ac43:820a, 2606:4700:3037::6815:312, 104.21.3.18 and 172.67.130.10.
Other host names, for instance hzsmssh.com, mx.autolineepstar.com, aifash.com, www.borneostreet.id and zgyf888.com share IP numbers with udacity.cr.
Name Servers
udacity.cr's delegation uses two name servers: ingrid.ns.cloudflare.com and kai.ns.cloudflare.com.
udacity.cr uses the same name server setup as other domains, such as udacitychallenge.biz, udacity.sucks, abarkments.com, nanodegrees.mx and udanxi.org.
udacity.cr at least partially shares name servers with other domains, including samfruit.com, izhen.net, coloradodrivingschools.com, jupiter(0x706f726e).com and optout-ldgs.net.
These name servers are commonly used together with the name servers noel.ns.cloudflare.com, destiny.ns.cloudflare.com, joan.ns.cloudflare.com and nile.ns.cloudflare.com.
Host names with six IP numbers:
ingrid.ns.cloudflare.com points to 2606:4700:50::adf5:3aa5, 2803:f800:50::6ca2:c0a5, 2a06:98c1:50::ac40:20a5, 108.162.192.165, 172.64.32.165 and 173.245.58.165.
kai.ns.cloudflare.com points to 2606:4700:58::adf5:3bbc, 2803:f800:50::6ca2:c1bc, 2a06:98c1:50::ac40:21bc, 108.162.193.188, 172.64.33.188 and 173.245.59.188.