Top Traffic Sites › colorado.edu
colorado.edu
colorado.edu is served by Cloudflare (CDN & security) and uses Akamai Edge DNS for DNS.
Rank
#219
of the top 1,000 websites · last scanned Oct 17, 2026
How a visit reaches colorado.edu
1 · VisitorBrowserlooks up phet.colorado.edu
2 · DNSAkamai Edge DNSanswers with Cloudflare addresses
3 · CDN & security edgeCloudflareAS13335 Cloudflare · 104.21.64.0/20
Steps 2 and 3 come from DNS and network data.
Same stack as state.gov and garmin.com: Cloudflare + Akamai Edge DNS. 3 of the top 1,000 websites use this pair.
Ranked by Chrome UX Report: top 5,000 · Majestic Million: #734 · Common Crawl: #563.
Similar sites
Near #219 on Cloudflare (CDN & security)
- zoho.com#204
- mediafire.com#207
- itch.io#214
- uber.com#230
- namecheap.com#236
Near #219 on Akamai Edge DNS (DNS)
- asu.edu#218
- lefigaro.fr#228
- intuit.com#229
- weather.com#232
- namecheap.com#236
Hostnames (1)
| Hostname | CDN & security | DNS | Status | Network |
|---|---|---|---|---|
| phet.colorado.edu main | Cloudflare | Akamai Edge DNS | live | AS13335 Cloudflare · 104.21.64.0/20 |
For top sites we check the main hostname people visit, plus the page it redirects to on the same domain. colorado.edu doesn't redirect.
Records
| Hostname scanned | phet.colorado.edu |
|---|---|
| Hostname visitors reach | phet.colorado.edu |
| Status | live |
| CNAME chain | phet.colorado.edu.cdn.cloudflare.net |
| A | 104.21.73.176 172.67.191.20 |
| AAAA | — |
| Zone | colorado.edu |
| Zone NS | a1-153.akam.net a11-66.akam.net a2-67.akam.net a20-65.akam.net a22-67.akam.net a3-66.akam.net |
| Network (ASN) | AS13335 Cloudflare |
| BGP prefix | 104.21.64.0/20 |
Showing 10 of 13 records. Log in free with your email to see all.
← #218 asu.edu · #220 playstation.com →
Shares count the 988 of the top 1,000 sites that answered our last scan.