Websites hosted on UR (AS20)
<0.01%
resolve to a UR (AS20) network
17 of 28.58 million domains with an A record, DNS sweep of Sep 2026
High-authority sites
Ordered by Open Page Rank, the domain's authority score from the open web link graph.
| # | Website | OPROpen Page Rank |
|---|---|---|
| 1 | rochester.edu | 8.71 |
| 2 | futurity.org | 7.75 |
| 3 | campustimes.org | 4.71 |
| 4 | urmc.edu | 3.82 |
| 5 | ceitraining.org | 3.42 |
See all hosting and how they are measured.