dev.cu.edu - dns.ninja
dev.cu.edu
| DNSSEC | ⚠️ Not signed | ||||||
| A | 204.228.68.114🇺🇸 HOSTING-H213564204.228.68.0/24 CU System UIS, Colorado | ||||||
| PTR | redirect.cu.edu | ||||||
| NS | ns9.cu.edu ⭐ ⚠️ Not in parent delegation | ||||||
| A | 204.228.68.245🇺🇸 HOSTING-H213564204.228.68.0/24 CU System UIS, Colorado | ||||||
| PTR | ns9.cu.edu | ||||||
| NS | ns10.cu.edu ⚠️ Not in parent delegation | ||||||
| A | 204.228.68.246🇺🇸 HOSTING-H213564204.228.68.0/24 CU System UIS, Colorado | ||||||
| PTR | ns10.cu.edu | ||||||
| NS | ns11.cu.edu ⚠️ Not in parent delegation | ||||||
| A | 204.228.69.105🇺🇸 HOSTING-H213564204.228.69.0/24 CU System UIS, Colorado | ||||||
| PTR | ns11.cu.edu | ||||||
| NS | ns12.cu.edu ⚠️ Not in parent delegation | ||||||
| A | 204.228.69.106🇺🇸 HOSTING-H213564204.228.69.0/24 CU System UIS, Colorado | ||||||
| PTR | ns12.cu.edu | ||||||
| NS | ns13.cu.edu ⚠️ Not in parent delegation | ||||||
| A | 204.228.71.105🇺🇸 HOSTING-H213564204.228.68.0/22 ECS-Infrastructure | ||||||
| PTR | ns13.cu.edu | ||||||
| SOA | ns9.cu.eduecs-infrastructure@cu.edu 2026-07-30 #3 | ||||||
cu.edu
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2620:12a:8000::3🇺🇸 Fastly2620:12a:8000::/44 Pantheon | ||||||
| A | 2620:12a:8001::3🇺🇸 Fastly2620:12a:8000::/44 Pantheon | ||||||
| A | 23.185.0.3🇺🇸 Fastly23.185.0.0/24 Pantheon | ||||||
| NS | ns9.cu.edu ⭐ | ||||||
| NS | ns10.cu.edu | ||||||
| NS | ns11.cu.edu | ||||||
| NS | ns12.cu.edu | ||||||
| NS | ns13.cu.edu ⚠️ Not in parent delegation | ||||||
| MX | cu-edu.mail.protection.outlook.com ⭐ | ||||||
| TXT | SFMC-nCqU91NmdDFREOVQ3Vcqns0MCHTHXiY2MQJOkdMs | ||||||
| TXT | pardot654853=81d752e752c183e4bd5b21755d75a444a9399bb49c5d9c3f9819199e03158082 | ||||||
| TXT | 1password-site-verification=HUTGTY3IQ5CGFBFFZSVPDZTH7Y | ||||||
| TXT | facebook-domain-verification=hk6531shxfomy8mnyv13ugtq5ekonl | ||||||
| TXT | aY1MJQkpCIxJn6wwMPnMuChcoRGnFjDmdt25lVIx6Qe5r0bwvtn1HSZiR3LHraXOnnubLy1YdLvaA... | ||||||
| TXT | cXbeJ4UDJBg+cxayxIvAK7sNlob/rhFmsvARSfdngBDvXzA9gnPBaF1leueKYuSy6wdUw8rtssKey... | ||||||
| TXT | MS=35F66365F292BD92898C1F9E92E0B839769891F8 | ||||||
| TXT | google-site-verification=TvCMRGZn8yRSf8fjN4KGTGsSIOheS1uAX4kNvtjQBcA | ||||||
| TXT | apple-domain-verification=BSVxaFpSdcRib9W6 | ||||||
| TXT | SFMC-xe9G0OU862W2jbGpqi9eMwAxsIVjt3WpKzQoRxgy | ||||||
| TXT | v=spf1 redirect=cu.edu.on.autospf.email | ||||||
| TXT | openai-domain-verification=dv-9jI2YpQaR9499Q0ulBsMn5CG | ||||||
| TXT | _globalsign-domain-verification=HhVeiSKIzpErKs0wHEAx0o32Z0civrS6plrUOt4M-B | ||||||
| SOA | ns9.cu.eduecs-infrastructure@cu.edu 2026-07-29 #1 | ||||||
rank #48161 globally
rank #888 in the tld
WOT: SAFE (80/100)
📈 Tranco rank: #97,516
Same first word
Similar names
DNS History
10 records (6 active, 4 former)
○NSns1.cu.edu2015-05-29 → 2016-04-13 · 4 obs
● 2016-04-13 17:03:36
○ 2026-04-22 03:30:28
○ 2026-08-02 12:02:52
●NSns10.cu.edu2026-04-22 → 2026-08-02 · 3 obs
● 2026-04-22 03:30:28
● 2026-08-02 12:02:52
●NSns11.cu.edu2026-04-22 → 2026-08-02 · 3 obs
● 2026-04-22 03:30:28
● 2026-08-02 12:02:52
●NSns12.cu.edu2026-04-22 → 2026-08-02 · 3 obs
● 2026-04-22 03:30:28
● 2026-08-02 12:02:52
●NSns13.cu.edu2026-04-22 → 2026-08-02 · 3 obs
● 2026-04-22 03:30:28
● 2026-08-02 12:02:52
○NSns2.cu.edu2015-05-29 → 2016-04-13 · 4 obs
● 2016-04-13 17:03:36
○ 2026-04-22 03:30:28
○ 2026-08-02 12:02:52
○NSns3.cu.edu2015-05-29 → 2016-04-13 · 4 obs
● 2016-04-13 17:03:36
○ 2026-04-22 03:30:28
○ 2026-08-02 12:02:52
○NSns4.cu.edu2015-05-29 → 2016-04-13 · 4 obs
● 2016-04-13 17:03:36
○ 2026-04-22 03:30:28
○ 2026-08-02 12:02:52
●NSns9.cu.edu2026-04-22 → 2026-08-02 · 3 obs
● 2026-04-22 03:30:28
● 2026-08-02 12:02:52
●A204.228.68.1142026-04-22 → 2026-08-02 · 2 obs
● 2026-08-02 12:02:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| edu | d.edu-servers.net, b.edu-servers.net, l.edu-servers.net, h.edu-servers.net... | 26 records |
| cu.edu | ns9.cu.edu, ns10.cu.edu, ns11.cu.edu, ns12.cu.edu | 4 records |
✅ Authoritative Response
Server:204.228.68.246
NS records: ns9.cu.edu, ns10.cu.edu, ns11.cu.edu, ns12.cu.edu
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cu.edu (unsigned zone)
⏱️ Timing
Total: 192ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 204.228.68.114 |
| NS | 5 | ns12.cu.edu, ns13.cu.edu... |
| SOA | 1 | ns9.cu.edu ecs-infrastructure.cu.edu |
📌 Glue Records Collected
Total: 30
In-bailiwick: 4 (ns9.cu.edu, ns10.cu.edu, ns11.cu.edu...)
Out-of-bailiwick: 26 (m.edu-servers.net, l.edu-servers.net, k.edu-servers.net...)
Analysis
IP Addresses
dev.cu.edu resolves to just one IP address, 204.228.68.114.
Among the host names that share IP numbers with dev.cu.edu is redirect.cu.edu, as one example.
Name Servers
dev.cu.edu delegates to five name servers: ns10.cu.edu, ns11.cu.edu, ns12.cu.edu and two others.
dev.cu.edu shares at least some of its name servers with other domains, including communications.cu.edu, prod.cu.edu, ad.cusys.edu and two others.
These name servers are frequently paired with the name servers ns13.cu.edu and ns9.cu.edu.
Host names that point to one IP address:
ns10.cu.edu resolves to the IP address 204.228.68.246.
ns11.cu.edu resolves to the IP address 204.228.69.105.
ns12.cu.edu resolves to the IP address 204.228.69.106.
ns13.cu.edu resolves to the IP address 204.228.71.105.
ns9.cu.edu resolves to the IP address 204.228.68.245.