Websites Powered by 33Across
159,611 websites tracked using 33Across (Advertising) · www.33across.com
33Across is a advertising and ad-serving technology used to display and manage online ads. Its official site is 33across.com. PoweredBy tracks the websites that use 33Across 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
25K
50K
75K
100K
Jun 2021
Oct 2022
Feb 2024
Jun 2025
Oct 2026
Domains observed using 33Across in each month's HTTP Archive crawl,
Jun 2021 to Oct 2026 · peak 84,247 in Aug 2023. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.9 s
INP 100 ms
CLS 0.05
TTFB 800 ms
Median site among 22,754 33Across sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
12,564
Canada
6,938
United Kingdom
6,815
India
6,037
Germany
5,790
France
5,307
Spain
5,272
Indonesia
5,110
Sites using 33Across by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| News and media | 1.89% | 928 |
| Games | 0.57% | 41 |
| Blogs and publishing | 0.47% | 135 |
| Software and apps | 0.09% | 150 |
| Arts and entertainment | 0.07% | 34 |
| Education | 0.04% | 24 |
| Restaurants and food | 0.03% | 40 |
| Sports and fitness | 0.02% | 5 |
| Professional services | 0.01% | 8 |
| Legal | 0.01% | 4 |
| Home and construction | 0.01% | 8 |
| Non-profit and religious | <0.01% | 1 |
Share of each industry's websites with a detected stack that use 33Across; industries come from what sites declare in their own structured data.
Top sites by authority
9+
4% · 15 of 372 sites
8+
3% · 210 of 7,677 sites
7+
2% · 696 of 45,712 sites
6+
1% · 1,265 of 110,136 sites
5+
<1% · 1,968 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running 33Across in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using 33Across
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 1 | github.io | 9.43/10 | 1,800 | 1 | Jun 2021 |
| 2 | blogspot.com | 9.39/10 | - | - | Jun 2021 |
| 3 | tumblr.com | 9.27/10 | 5,070,300 | 1,588,775 | Jun 2021 |
| 4 | yahoo.com | 9.27/10 | 15,772,000 | 8,807,788 | May 2025 |
| 5 | soundcloud.com | 9.25/10 | 7,874,400 | 2,926,017 | Sep 2025 |
| 6 | weebly.com | 9.24/10 | 162,400 | 11,089 | Jun 2021 |
| 7 | pages.dev | 9.14/10 | - | - | Jul 2021 |
| 8 | reuters.com | 9.14/10 | 4,919,200 | 1,365,073 | Dec 2022 |
| 9 | imdb.com | 9.12/10 | 433,469,200 | 8,655,264 | Feb 2026 |
| 10 | businessinsider.com | 9.11/10 | 6,219,300 | 2,952,834 | Sep 2022 |
| 11 | vercel.app | 9.05/10 | - | - | Jun 2021 |
| 12 | free.fr | 9.05/10 | 3,400 | 1,262 | Jun 2021 |
| 13 | theverge.com | 9.04/10 | 1,065,000 | 658,818 | Oct 2023 |
| 14 | netlify.app | 9.01/10 | 2 | 2 | Jun 2021 |
| 15 | uk.com | 9.00/10 | 2 | 12 | Jun 2021 |
| 16 | fortune.com | 8.99/10 | 1,515,200 | 527,201 | Jul 2025 |
| 17 | azureedge.net | 8.98/10 | - | - | Jul 2021 |
| 18 | healthline.com | 8.98/10 | 32,274,400 | 5,254,611 | Jun 2023 |
| 19 | britannica.com | 8.97/10 | 90,729,000 | 5,444,426 | Jan 2022 |
| 20 | webmd.com | 8.96/10 | 24,320,900 | 2,948,425 | Jul 2023 |
| 21 | sakura.ne.jp | 8.95/10 | - | - | Jun 2023 |
| 22 | merriam-webster.com | 8.93/10 | 198,322,900 | 2,188,129 | Jan 2022 |
| 23 | vox.com | 8.92/10 | 658,300 | 338,210 | Oct 2023 |
| 24 | huffpost.com | 8.91/10 | 916,000 | 697,626 | Jul 2023 |
| 25 | vice.com | 8.89/10 | 1,240,100 | 474,045 | Aug 2023 |
| 26 | jimdofree.com | 8.88/10 | - | - | Jul 2021 |
| 27 | appspot.com | 8.87/10 | - | - | Aug 2021 |
| 28 | fandom.com | 8.87/10 | 96,300 | 43,935 | Jun 2021 |
| 29 | variety.com | 8.87/10 | 5,126,100 | 1,218,868 | Jul 2023 |
| 30 | shorturl.at | 8.86/10 | 61,100 | 1,340 | Sep 2023 |
| 31 | buzzfeed.com | 8.84/10 | 2,934,100 | 1,476,397 | Dec 2024 |
| 32 | medicalnewstoday.com | 8.83/10 | 12,346,100 | 2,401,512 | Jun 2023 |
| 33 | qz.com | 8.82/10 | 228,300 | 175,282 | Nov 2023 |
| 34 | aarp.org | 8.82/10 | 1,965,700 | 572,392 | Feb 2025 |
| 35 | it.com | 8.81/10 | - | - | Nov 2024 |
| 36 | aol.com | 8.81/10 | 5,394,600 | 4,486,218 | Jun 2025 |
| 37 | rollingstone.com | 8.81/10 | 3,836,000 | 1,103,175 | Jun 2023 |
| 38 | aljazeera.com | 8.81/10 | 2,602,600 | 601,305 | Feb 2024 |
| 39 | fc2.com | 8.80/10 | 5,100 | 10 | Jul 2021 |
| 40 | techradar.com | 8.78/10 | 2,329,200 | 1,412,751 | Jul 2023 |
| 41 | smithsonianmag.com | 8.77/10 | 1,756,500 | 472,797 | Jul 2021 |
| 42 | poynter.org | 8.76/10 | 44,000 | 26,046 | Jan 2025 |
| 43 | web.app | 8.76/10 | - | - | Jun 2021 |
| 44 | hollywoodreporter.com | 8.76/10 | 4,640,600 | 1,353,453 | Oct 2023 |
| 45 | thesun.co.uk | 8.76/10 | 549,800 | 570,089 | Jul 2023 |
| 46 | herokuapp.com | 8.74/10 | - | - | Sep 2021 |
| 47 | lovable.app | 8.73/10 | - | - | Jun 2026 |
| 48 | nymag.com | 8.73/10 | 1,040,800 | 593,749 | Oct 2023 |
| 49 | metro.co.uk | 8.72/10 | 305,500 | 377,871 | Apr 2024 |
| 50 | tagesspiegel.de | 8.71/10 | 4,100 | 9,470 | Aug 2026 |
| 51 | docomo.ne.jp | 8.71/10 | 4,100 | 2,896 | May 2022 |
| 52 | chicagotribune.com | 8.70/10 | 426,300 | 398,787 | Dec 2021 |
| 53 | in.net | 8.69/10 | - | - | Jul 2021 |
| 54 | billboard.com | 8.69/10 | 3,401,300 | 1,015,516 | Nov 2023 |
| 55 | icons8.com | 8.68/10 | 573,200 | 189,796 | Feb 2026 |
| 56 | pantheonsite.io | 8.67/10 | 7 | 5 | Aug 2022 |
| 57 | altervista.org | 8.66/10 | - | - | Jun 2021 |
| 58 | scmp.com | 8.66/10 | 1,413,200 | 517,845 | Aug 2023 |
| 59 | impress.co.jp | 8.66/10 | - | 2 | Oct 2026 |
| 60 | newscientist.com | 8.65/10 | 331,600 | 163,590 | Sep 2023 |
| 61 | simpli.fi | 8.64/10 | 1,400 | 518 | Oct 2024 |
| 62 | thetimes.com | 8.64/10 | 475,200 | 380,154 | Jul 2024 |
| 63 | hindustantimes.com | 8.64/10 | 1,861,300 | 1,274,805 | Jul 2023 |
| 64 | investing.com | 8.62/10 | 5,030,600 | 805,945 | Jun 2023 |
| 65 | asahi.com | 8.62/10 | 62,100 | 33,939 | Dec 2021 |
| 66 | seattletimes.com | 8.62/10 | 961,900 | 498,251 | Nov 2024 |
| 67 | deadline.com | 8.62/10 | 4,046,900 | 1,031,893 | Jul 2023 |
| 68 | chron.com | 8.62/10 | 335,800 | 278,648 | May 2023 |
| 69 | 500px.com | 8.61/10 | 12,100 | 3,339 | Nov 2021 |
| 70 | emojipedia.org | 8.61/10 | 3,220,600 | 170,108 | Nov 2022 |
| 71 | ign.com | 8.60/10 | 11,684,900 | 2,876,285 | Sep 2023 |
| 72 | speedtest.net | 8.59/10 | 7,903,000 | 42,743 | Nov 2023 |
| 73 | eater.com | 8.58/10 | 416,700 | 140,007 | Oct 2023 |
| 74 | nydailynews.com | 8.57/10 | 159,300 | 233,108 | Oct 2023 |
| 75 | bleepingcomputer.com | 8.55/10 | 91,500 | 75,763 | Aug 2022 |
| 76 | bnnbloomberg.ca | 8.55/10 | 35,800 | 23,672 | Sep 2024 |
| 77 | boston.com | 8.55/10 | 479,500 | 224,599 | Jul 2023 |
| 78 | gamespot.com | 8.54/10 | 957,000 | 538,191 | Jun 2023 |
| 79 | pcworld.com | 8.54/10 | 470,700 | 233,546 | Nov 2023 |
| 80 | dictionary.com | 8.54/10 | 42,459,700 | 1,452,995 | Jun 2023 |
| 81 | europapress.es | 8.54/10 | 9,400 | 23,833 | Jan 2025 |
| 82 | spb.ru | 8.53/10 | - | - | Sep 2021 |
| 83 | jp.net | 8.52/10 | 66 | 7 | Jul 2021 |
| 84 | psychcentral.com | 8.51/10 | 485,100 | 181,860 | Jul 2023 |
| 85 | worldometers.info | 8.51/10 | 2,622,700 | 148,132 | Nov 2024 |
| 86 | hostingersite.com | 8.49/10 | - | - | Jun 2026 |
| 87 | fastly.net | 8.49/10 | - | - | Feb 2024 |
| 88 | sapo.pt | 8.49/10 | 10,100 | 29,601 | Jun 2021 |
| 89 | tomsguide.com | 8.48/10 | 10,659,600 | 1,153,221 | Jul 2021 |
| 90 | denverpost.com | 8.48/10 | 279,700 | 217,911 | Feb 2023 |
| 91 | mercurynews.com | 8.48/10 | 209,200 | 219,660 | Aug 2023 |
| 92 | hatenablog.com | 8.47/10 | - | - | Oct 2024 |
| 93 | curbed.com | 8.46/10 | 39,100 | 30,746 | Oct 2023 |
| 94 | military.com | 8.46/10 | 1,871,400 | 309,682 | Jan 2026 |
| 95 | vulture.com | 8.46/10 | 1,458,800 | 628,731 | Oct 2023 |
| 96 | space.com | 8.46/10 | 2,076,700 | 347,257 | Jun 2021 |
| 97 | inews.co.uk | 8.45/10 | 82,500 | 98,450 | Sep 2023 |
| 98 | eleconomista.es | 8.45/10 | 9,800 | 29,719 | Aug 2023 |
| 99 | sbnation.com | 8.44/10 | 266,500 | 194,219 | Oct 2023 |
| 100 | thestreet.com | 8.44/10 | 1,627,400 | 347,196 | Jul 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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