Websites Powered by Rubicon Project
119,760 websites tracked using Rubicon Project (Advertising) · rubiconproject.com
Rubicon Project is a advertising and ad-serving technology used to display and manage online ads. Its official site is rubiconproject.com. PoweredBy tracks the websites that use Rubicon Project across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the advertising ecosystem.
Usage trend
20K
40K
60K
80K
Apr 2018
May 2020
Jul 2022
Aug 2024
Sep 2026
Domains observed using Rubicon Project in each month's HTTP Archive crawl,
Apr 2018 to Sep 2026 · peak 61,783 in Jun 2023. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.8 s
INP 125 ms
CLS 0.05
TTFB 700 ms
Median site among 50,619 Rubicon Project sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
37,263
Canada
21,627
United Kingdom
20,724
Australia
14,312
India
14,005
Germany
13,898
France
12,211
Spain
11,441
Sites using Rubicon Project by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| News and media | 6.91% | 2,907 |
| Blogs and publishing | 2.26% | 555 |
| Games | 1.81% | 88 |
| Arts and entertainment | 0.53% | 218 |
| Sports and fitness | 0.29% | 48 |
| Software and apps | 0.25% | 296 |
| Pets and animals | 0.14% | 4 |
| Education | 0.11% | 55 |
| Beauty and wellness | 0.05% | 14 |
| Restaurants and food | 0.04% | 50 |
| Professional services | 0.04% | 15 |
| Finance and insurance | 0.04% | 6 |
Share of each industry's websites with a detected stack that use Rubicon Project; industries come from what sites declare in their own structured data.
Top sites by authority
9+
10% · 36 of 372 sites
8+
7% · 531 of 7,677 sites
7+
5% · 2,170 of 45,712 sites
6+
4% · 4,132 of 110,136 sites
5+
3% · 6,979 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running Rubicon Project in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using Rubicon Project
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | wordpress.com | 9.50/10 | 461,400 | 54,845 | Jun 2021 |
| 2 | amazonaws.com | 9.50/10 | - | - | Sep 2021 |
| 3 | cloudfront.net | 9.47/10 | - | - | Oct 2019 |
| 4 | github.io | 9.43/10 | 1,800 | 1 | Jun 2022 |
| 5 | blogspot.com | 9.39/10 | - | - | Feb 2019 |
| 6 | nytimes.com | 9.28/10 | 30,515,000 | 8,477,893 | May 2025 |
| 7 | yahoo.com | 9.27/10 | 15,772,000 | 8,807,788 | May 2024 |
| 8 | soundcloud.com | 9.25/10 | 7,874,400 | 2,926,017 | Sep 2025 |
| 9 | weebly.com | 9.24/10 | 162,400 | 11,089 | May 2023 |
| 10 | allaboutcookies.org | 9.18/10 | 157,600 | 79,011 | Jul 2026 |
| 11 | cnn.com | 9.16/10 | 15,758,100 | 2,569,749 | Jun 2018 |
| 12 | pages.dev | 9.14/10 | - | - | Jan 2024 |
| 13 | reuters.com | 9.14/10 | 4,919,200 | 1,365,073 | Jul 2021 |
| 14 | hatena.ne.jp | 9.14/10 | 15 | 10 | Jul 2021 |
| 15 | wsj.com | 9.13/10 | 3,080,500 | 919,012 | Aug 2026 |
| 16 | myshopify.com | 9.12/10 | - | - | Sep 2021 |
| 17 | imdb.com | 9.12/10 | 433,469,200 | 8,655,264 | Feb 2026 |
| 18 | squarespace.com | 9.11/10 | 233,400 | 29,406 | Apr 2022 |
| 19 | cnbc.com | 9.11/10 | 14,692,500 | 1,273,650 | Jan 2023 |
| 20 | businessinsider.com | 9.11/10 | 6,219,300 | 2,952,834 | Oct 2018 |
| 21 | rakuten.co.jp | 9.11/10 | 9,200 | 1,689 | Aug 2018 |
| 22 | imgur.com | 9.07/10 | 834,200 | 577,884 | Jun 2021 |
| 23 | wired.com | 9.07/10 | 2,529,800 | 1,048,674 | Jul 2021 |
| 24 | stackoverflow.com | 9.05/10 | 6,139,200 | 2,184,814 | Feb 2026 |
| 25 | tripadvisor.com | 9.05/10 | 160,133,900 | 11,441,444 | Apr 2021 |
| 26 | vercel.app | 9.05/10 | - | - | Apr 2022 |
| 27 | free.fr | 9.05/10 | 3,400 | 1,262 | Oct 2021 |
| 28 | theverge.com | 9.04/10 | 1,065,000 | 658,818 | Sep 2016 |
| 29 | lemonde.fr | 9.03/10 | 267,300 | 164,559 | Jul 2021 |
| 30 | cbc.ca | 9.03/10 | 1,276,900 | 807,604 | Nov 2022 |
| 31 | independent.co.uk | 9.02/10 | 269,400 | 181,138 | Sep 2023 |
| 32 | netlify.app | 9.01/10 | 2 | 2 | Jun 2021 |
| 33 | theatlantic.com | 9.01/10 | 854,400 | 403,036 | Jul 2021 |
| 34 | nbcnews.com | 9.01/10 | 7,160,600 | 1,797,651 | Feb 2023 |
| 35 | uk.com | 9.00/10 | 2 | 12 | Jun 2021 |
| 36 | cnet.com | 9.00/10 | 6,655,700 | 2,255,710 | Dec 2021 |
| 37 | fortune.com | 8.99/10 | 1,515,200 | 527,201 | Oct 2022 |
| 38 | azureedge.net | 8.98/10 | - | - | Jul 2021 |
| 39 | britannica.com | 8.97/10 | 90,729,000 | 5,444,426 | Dec 2021 |
| 40 | webmd.com | 8.96/10 | 24,320,900 | 2,948,425 | Jun 2026 |
| 41 | indiatimes.com | 8.95/10 | 54,100 | 69,752 | Jul 2021 |
| 42 | mynavi.jp | 8.95/10 | 81 | 14 | Jul 2021 |
| 43 | sakura.ne.jp | 8.95/10 | - | - | Jan 2022 |
| 44 | merriam-webster.com | 8.93/10 | 198,322,900 | 2,188,129 | Dec 2021 |
| 45 | vox.com | 8.92/10 | 658,300 | 338,210 | Sep 2016 |
| 46 | uol.com.br | 8.92/10 | 33,600 | 42,015 | Jan 2016 |
| 47 | zdnet.com | 8.91/10 | 656,900 | 705,745 | Feb 2023 |
| 48 | huffpost.com | 8.91/10 | 916,000 | 697,626 | Jul 2021 |
| 49 | nypost.com | 8.91/10 | 5,009,700 | 1,907,312 | Oct 2021 |
| 50 | newyorker.com | 8.90/10 | 2,092,700 | 600,518 | Jul 2021 |
| 51 | nationalgeographic.com | 8.90/10 | 3,544,000 | 605,254 | Dec 2022 |
| 52 | vice.com | 8.89/10 | 1,240,100 | 474,045 | Sep 2022 |
| 53 | appspot.com | 8.87/10 | - | - | Apr 2023 |
| 54 | fandom.com | 8.87/10 | 96,300 | 43,935 | Jun 2021 |
| 55 | variety.com | 8.87/10 | 5,126,100 | 1,218,868 | Jul 2021 |
| 56 | mashable.com | 8.87/10 | 1,928,400 | 775,887 | Oct 2019 |
| 57 | us.com | 8.86/10 | 32 | 8 | Sep 2023 |
| 58 | shorturl.at | 8.86/10 | 61,100 | 1,340 | Sep 2023 |
| 59 | smh.com.au | 8.86/10 | 190,800 | 204,181 | Jul 2021 |
| 60 | arstechnica.com | 8.84/10 | 392,900 | 328,208 | Jun 2021 |
| 61 | buzzfeed.com | 8.84/10 | 2,934,100 | 1,476,397 | Mar 2022 |
| 62 | politico.com | 8.84/10 | 1,637,900 | 483,715 | Oct 2021 |
| 63 | foxnews.com | 8.84/10 | 3,829,400 | 1,132,332 | Jul 2021 |
| 64 | sciencedaily.com | 8.84/10 | 273,400 | 186,069 | Jul 2021 |
| 65 | qz.com | 8.82/10 | 228,300 | 175,282 | May 2022 |
| 66 | gizmodo.com | 8.82/10 | 778,600 | 475,749 | Jun 2018 |
| 67 | aarp.org | 8.82/10 | 1,965,700 | 572,392 | Sep 2026 |
| 68 | it.com | 8.81/10 | - | - | Jul 2025 |
| 69 | engadget.com | 8.81/10 | 623,800 | 375,784 | May 2024 |
| 70 | aol.com | 8.81/10 | 5,394,600 | 4,486,218 | May 2024 |
| 71 | rollingstone.com | 8.81/10 | 3,836,000 | 1,103,175 | Jun 2021 |
| 72 | aljazeera.com | 8.81/10 | 2,602,600 | 601,305 | Jul 2021 |
| 73 | pcmag.com | 8.80/10 | 4,607,700 | 977,917 | Nov 2021 |
| 74 | slate.com | 8.80/10 | 1,037,700 | 414,546 | Oct 2021 |
| 75 | nikkei.com | 8.79/10 | 1,900 | 2,469 | Nov 2024 |
| 76 | stackexchange.com | 8.78/10 | 3,500 | 666 | Oct 2025 |
| 77 | techradar.com | 8.78/10 | 2,329,200 | 1,412,751 | Jun 2021 |
| 78 | eu.com | 8.77/10 | - | - | Mar 2025 |
| 79 | adweek.com | 8.77/10 | 177,800 | 137,440 | Apr 2026 |
| 80 | smithsonianmag.com | 8.77/10 | 1,756,500 | 472,797 | Jul 2018 |
| 81 | poynter.org | 8.76/10 | 44,000 | 26,046 | Jan 2025 |
| 82 | joomla.org | 8.76/10 | 3,200 | 881 | Jul 2022 |
| 83 | web.app | 8.76/10 | - | - | Jun 2021 |
| 84 | espn.com | 8.76/10 | 154,983,200 | 3,121,138 | Jun 2021 |
| 85 | hollywoodreporter.com | 8.76/10 | 4,640,600 | 1,353,453 | Jul 2021 |
| 86 | thesun.co.uk | 8.76/10 | 549,800 | 570,089 | Jul 2021 |
| 87 | uci.edu | 8.76/10 | 94,600 | 9,503 | Feb 2026 |
| 88 | globo.com | 8.74/10 | 3,500 | 605 | Aug 2018 |
| 89 | today.com | 8.74/10 | 5,184,700 | 1,625,275 | Sep 2022 |
| 90 | nymag.com | 8.73/10 | 1,040,800 | 593,749 | Jan 2021 |
| 91 | mirror.co.uk | 8.73/10 | 612,700 | 589,543 | Jul 2021 |
| 92 | standard.co.uk | 8.72/10 | 341,800 | 303,614 | Nov 2021 |
| 93 | ctvnews.ca | 8.72/10 | 248,200 | 295,610 | Jul 2021 |
| 94 | tagesspiegel.de | 8.71/10 | 4,100 | 9,470 | Aug 2026 |
| 95 | docomo.ne.jp | 8.71/10 | 4,100 | 2,896 | Jul 2021 |
| 96 | thomsonreuters.com | 8.70/10 | 145,100 | 57,340 | Jul 2026 |
| 97 | sfgate.com | 8.70/10 | 1,315,100 | 532,900 | Jul 2022 |
| 98 | chicagotribune.com | 8.70/10 | 426,300 | 398,787 | Oct 2023 |
| 99 | idnes.cz | 8.70/10 | 9,700 | 10,609 | Aug 2018 |
| 100 | billboard.com | 8.69/10 | 3,401,300 | 1,015,516 | Jun 2021 |
Open Page Rank is the domain's authority score (0 to 10, from the open web link graph); the list is ordered by it and covers sites seen in recent crawls. Visits and keywords are estimated US organic search figures.
Download top 10,000 as CSV (zip) →
Columns: domain, Open Page Rank, first seen, last seen, industry (from the site's own structured data, blank when none).
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