upenn-csa.com - robtex.com
upenn-csa.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:9bf1🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:38d2🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.56.210Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.155.241🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | christina.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:26c1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | christina.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2c1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | christina.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22c1🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | christina.ns.cloudflare.com | ||||||
| A | 108.162.194.193🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | christina.ns.cloudflare.com | ||||||
| A | 162.159.38.193Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | christina.ns.cloudflare.com | ||||||
| A | 172.64.34.193🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | christina.ns.cloudflare.com | ||||||
| NS | elliott.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2ce4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elliott.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c3e4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | elliott.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:23e4🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | elliott.ns.cloudflare.com | ||||||
| A | 108.162.195.228🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elliott.ns.cloudflare.com | ||||||
| A | 162.159.44.228Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elliott.ns.cloudflare.com | ||||||
| A | 172.64.35.228🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | elliott.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.56.210, 172.67.155.241 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:9bf1, 2606:4700:3036::6815:38d2 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=231, name=cloudflare-ech.com | ||||||
| SOA | christina.ns.cloudflare.comdns@cloudflare.com serial=2410792428 | ||||||
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=1786641804 | ||||||
Same first word
upenn-csa.com |
DNS History
6 records (6 active, 0 former)
●NSchristina.ns.cloudflare.com2026-08-02 → 2026-08-13 · 2 obs
● 2026-08-13 17:25:46
●NSelliott.ns.cloudflare.com2026-08-02 → 2026-08-13 · 2 obs
● 2026-08-13 17:25:46
●A104.21.56.2102026-08-02 → 2026-08-13 · 2 obs
● 2026-08-13 17:25:46
●A172.67.155.2412026-08-02 → 2026-08-13 · 2 obs
● 2026-08-13 17:25:46
●A2606:4700:3031::ac43:9bf12026-08-02 → 2026-08-13 · 2 obs
● 2026-08-13 17:25:46
●A2606:4700:3036::6815:38d22026-08-02 → 2026-08-13 · 2 obs
● 2026-08-13 17:25:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, k.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net... | - |
| upenn-csa.com | christina.ns.cloudflare.com, elliott.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.195.228
NS records: christina.ns.cloudflare.com, elliott.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for upenn-csa.com (unsigned zone)
⏱️ Timing
Total: 140ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.155.241, 104.21.56.210 |
| AAAA | 2 | 2606:4700:3036::6815:38d2, 2606:4700:3031::ac43:9bf1 |
| NS | 2 | christina.ns.cloudflare.com, elliott.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | christina.ns.cloudflare.com dns.cloudfla |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (christina.ns.cloudflare.com, christina.ns.cloudflare.com, christina.ns.cloudflare.com...)
Analysis
IP Addresses
upenn-csa.com points to the four IP addresses 104.21.56.210, 172.67.155.241, 2606:4700:3031::ac43:9bf1 and 2606:4700:3036::6815:38d2.
zajmitenge.kz, www.atsmods.org, nyc-ascensionchurch.org plus two other host names have IP numbers in common with upenn-csa.com.
Name Servers
upenn-csa.com uses two name servers for its delegation: christina.ns.cloudflare.com and elliott.ns.cloudflare.com.
The name server configuration of upenn-csa.com is shared with other domains, for instance xinyongziben.com, fultonfishmarket-us.com, zhuomuniaodaoju.com and two others.
The name servers of upenn-csa.com overlap at least partially with those of other domains — among them vinarobles.com, castrocvv.co, frontierfg.com.au and two more.
The name servers emma.ns.cloudflare.com, decker.ns.cloudflare.com and nolan.ns.cloudflare.com are commonly seen alongside these name servers.
Hosts with 6 IP addresses each:
Hostname christina.ns.cloudflare.com directs to 108.162.194.193, 162.159.38.193 and 172.64.34.193 along with 3 other IP addresses.
Hostname elliott.ns.cloudflare.com directs to 108.162.195.228, 162.159.44.228 and 172.64.35.228 along with 3 other IP addresses.