Websites Powered by LazySizes
3,013,572 websites tracked using LazySizes (JavaScript libraries) · github.com
LazySizes is a JavaScript library used to add functionality to web pages. Its official site is github.com. PoweredBy tracks the websites that use LazySizes across the public web; the tracked counts, adoption trend, and site list on this page are updated from our ongoing crawl of the javascript libraries ecosystem.
Usage trend
500K
1M
1.5M
Feb 2022
Apr 2023
Jun 2024
Jul 2025
Sep 2026
Domains observed using LazySizes in each month's HTTP Archive crawl,
Feb 2022 to Sep 2026 · peak 1,192,952 in Mar 2023. The tracked total above also
counts sites not re-crawled recently.
Core Web Vitals
LCP 1.9 s
INP 75 ms
CLS 0
TTFB 800 ms
Median site among 960,073 LazySizes sites with Chrome UX data, p75 values, Sep 2026.
Top countries
United States
251,402
Japan
87,181
United Kingdom
85,102
Germany
85,004
India
73,291
Brazil
66,707
France
64,741
Canada
62,557
Sites using LazySizes by audience country, Chrome UX Report.
Usage by industry
| Industry | Share | Websites |
|---|---|---|
| Retail | 21.11% | 63,593 |
| Legal | 14.96% | 3,505 |
| News and media | 13.15% | 5,536 |
| Finance and insurance | 12.60% | 2,090 |
| Industrial and manufacturing | 12.13% | 526 |
| Travel and hospitality | 11.26% | 8,370 |
| Home and construction | 9.72% | 4,626 |
| Pets and animals | 9.27% | 256 |
| Arts and entertainment | 9.14% | 3,774 |
| Blogs and publishing | 8.84% | 2,167 |
| Non-profit and religious | 8.71% | 682 |
| Healthcare | 8.70% | 9,268 |
Share of each industry's websites with a detected stack that use LazySizes; industries come from what sites declare in their own structured data.
Top sites by authority
9+
18% · 66 of 372 sites
8+
17% · 1,278 of 7,677 sites
7+
12% · 5,291 of 45,712 sites
6+
10% · 10,924 of 110,136 sites
5+
8% · 20,316 of 246,751 sites
The share of the web's most authoritative domains, by Open Page Rank tier, seen running LazySizes in recent crawls. Only 372 domains worldwide score 9 or higher.
Websites using LazySizes
| # | Domain | Open Page RankOPR | Est. monthly visits (US)Visits (US) | Keywords | First seen |
|---|---|---|---|---|---|
| 2701 | ksu.edu.sa | 7.45/10 | 1,500 | 471 | Feb 2025 |
| 2702 | wan-ifra.org | 7.45/10 | 3,400 | 1,370 | Feb 2022 |
| 2703 | writersdigest.com | 7.45/10 | 154,800 | 62,022 | Feb 2022 |
| 2704 | visitphilly.com | 7.45/10 | 1,104,100 | 100,574 | Feb 2022 |
| 2705 | qzin.jp | 7.45/10 | - | - | Feb 2022 |
| 2706 | uel.ac.uk | 7.45/10 | 5,300 | 5,067 | Feb 2022 |
| 2707 | agriculture.com | 7.45/10 | 90,200 | 44,384 | Feb 2022 |
| 2708 | americanpressinstitute.org | 7.45/10 | 3,500 | 1,382 | Nov 2023 |
| 2709 | unionleader.com | 7.45/10 | 53,800 | 68,887 | Feb 2022 |
| 2710 | fh-potsdam.de | 7.45/10 | 87 | 91 | May 2025 |
| 2711 | thespec.com | 7.45/10 | 28,800 | 47,659 | Jul 2023 |
| 2712 | levante-emv.com | 7.45/10 | 3,200 | 12,568 | Feb 2022 |
| 2713 | homelight.com | 7.45/10 | 136,900 | 90,199 | Feb 2022 |
| 2714 | tallinn.ee | 7.45/10 | 1,800 | 512 | Sep 2024 |
| 2715 | nais.org | 7.45/10 | 16,700 | 4,871 | Oct 2025 |
| 2716 | suite101.com | 7.45/10 | 25 | 99 | Oct 2022 |
| 2717 | stifterverband.org | 7.45/10 | 35 | 48 | May 2023 |
| 2718 | kkr.or.jp | 7.45/10 | 110 | 30 | Dec 2023 |
| 2719 | sbg.ac.at | 7.45/10 | - | - | Mar 2022 |
| 2720 | braunschweig.de | 7.45/10 | 380 | 357 | Feb 2022 |
| 2721 | mil.gov.ua | 7.45/10 | - | - | Mar 2023 |
| 2722 | ym.fi | 7.45/10 | 1,200 | 148 | Feb 2022 |
| 2723 | wwf.nl | 7.45/10 | 420 | 77 | Feb 2022 |
| 2724 | liverpoolmuseums.org.uk | 7.45/10 | 110,400 | 21,220 | Feb 2022 |
| 2725 | welthungerhilfe.de | 7.45/10 | 39 | 87 | Feb 2022 |
| 2726 | lawgazette.co.uk | 7.45/10 | 1,800 | 3,245 | Feb 2022 |
| 2727 | irishcentral.com | 7.45/10 | 97,900 | 51,544 | Feb 2022 |
| 2728 | iubilaeum2025.va | 7.45/10 | 25,200 | 7,505 | Aug 2022 |
| 2729 | h-da.de | 7.45/10 | 150 | 148 | Aug 2023 |
| 2730 | cpp.edu | 7.45/10 | 384,900 | 69,392 | Feb 2024 |
| 2731 | totalenergies.fr | 7.45/10 | 230 | 495 | Sep 2026 |
| 2732 | istanbul.edu.tr | 7.45/10 | 1,100 | 66 | Jun 2022 |
| 2733 | tampere.fi | 7.45/10 | 1,600 | 493 | Sep 2022 |
| 2734 | bidmc.org | 7.45/10 | 125,600 | 53,802 | Feb 2022 |
| 2735 | nationalgalleries.org | 7.45/10 | 75,300 | 22,759 | Jul 2023 |
| 2736 | giffords.org | 7.45/10 | 78,600 | 30,856 | Aug 2022 |
| 2737 | westfalen-blatt.de | 7.45/10 | 980 | 2,108 | Feb 2022 |
| 2738 | um.si | 7.45/10 | 200 | 39 | Apr 2022 |
| 2739 | twu.edu | 7.45/10 | 80,900 | 42,333 | Mar 2022 |
| 2740 | lincolninst.edu | 7.45/10 | 10,400 | 6,289 | Jun 2024 |
| 2741 | cgt.fr | 7.45/10 | 61 | 230 | Aug 2022 |
| 2742 | hslda.org | 7.45/10 | 53,800 | 10,085 | Mar 2025 |
| 2743 | themorgan.org | 7.45/10 | 270,400 | 23,389 | Oct 2024 |
| 2744 | macpac.gov | 7.45/10 | 16,500 | 7,494 | Jul 2024 |
| 2745 | tvo.org | 7.45/10 | 6,700 | 7,912 | Apr 2022 |
| 2746 | m5stack.com | 7.45/10 | 3,100 | 1,038 | Feb 2022 |
| 2747 | hamilton.edu | 7.45/10 | 68,700 | 22,795 | Feb 2022 |
| 2748 | eitfood.eu | 7.45/10 | 3,000 | 932 | Jun 2022 |
| 2749 | urosario.edu.co | 7.45/10 | 2,300 | 1,586 | Feb 2022 |
| 2750 | bcit.ca | 7.45/10 | 5,600 | 5,890 | Feb 2022 |
| 2751 | eeb.org | 7.45/10 | 500 | 883 | Jun 2023 |
| 2752 | saiseikai.or.jp | 7.45/10 | - | 6 | Feb 2022 |
| 2753 | savethechildren.it | 7.45/10 | 22 | 189 | Feb 2022 |
| 2754 | d-kintetsu.co.jp | 7.45/10 | 8 | 33 | Apr 2023 |
| 2755 | espn.in | 7.45/10 | 53,100 | 28,929 | Feb 2022 |
| 2756 | fair.org | 7.45/10 | 10,400 | 6,449 | Nov 2024 |
| 2757 | rtvdrenthe.nl | 7.45/10 | 500 | 574 | Feb 2022 |
| 2758 | diariodemallorca.es | 7.45/10 | 1,800 | 5,492 | Feb 2022 |
| 2759 | newscast.jp | 7.45/10 | 310 | 661 | Feb 2022 |
| 2760 | folha.com.br | 7.45/10 | 6 | 7 | Feb 2022 |
| 2761 | francesoir.fr | 7.45/10 | 89 | 207 | Jun 2022 |
| 2762 | dnsmadeeasy.com | 7.44/10 | 25,400 | 3,507 | Sep 2026 |
| 2763 | psihologiyaotnoshenij.com | 7.44/10 | - | - | Feb 2022 |
| 2764 | brno-stred.cz | 7.44/10 | 1 | 15 | Feb 2022 |
| 2765 | vanderbilthealth.com | 7.44/10 | 110,400 | 41,437 | Oct 2023 |
| 2766 | kathmandu.com.au | 7.44/10 | 1,600 | 3,090 | Feb 2022 |
| 2767 | insales.ru | 7.44/10 | 1,600 | 12 | Feb 2022 |
| 2768 | ads-kuwait.net | 7.44/10 | - | - | Jun 2024 |
| 2769 | thehousethatlarsbuilt.com | 7.44/10 | 9,200 | 7,209 | Feb 2025 |
| 2770 | credit-agricole.com | 7.44/10 | 2,100 | 817 | Jun 2026 |
| 2771 | modified-shop.org | 7.44/10 | 4 | 4 | Feb 2022 |
| 2772 | securecafe.com | 7.44/10 | 25 | 11 | Aug 2022 |
| 2773 | dropbox.tech | 7.44/10 | 410 | 601 | Feb 2022 |
| 2774 | exabeam.com | 7.44/10 | 21,500 | 6,265 | Feb 2022 |
| 2775 | checkfront.com | 7.44/10 | 1,100 | 819 | Nov 2025 |
| 2776 | capitalgazette.com | 7.44/10 | 19,600 | 26,359 | Nov 2022 |
| 2777 | chiefs.com | 7.44/10 | 1,874,000 | 190,277 | Feb 2022 |
| 2778 | traum-ferienwohnungen.de | 7.44/10 | 270 | 373 | Jul 2026 |
| 2779 | shoplightspeed.com | 7.44/10 | - | - | Sep 2022 |
| 2780 | vm.ru | 7.44/10 | 25 | 107 | Feb 2022 |
| 2781 | idrc-crdi.ca | 7.44/10 | 6,900 | 7,335 | Jun 2023 |
| 2782 | enca.com | 7.44/10 | 4,900 | 7,997 | Sep 2023 |
| 2783 | rrd.com | 7.44/10 | 9,400 | 8,941 | Feb 2022 |
| 2784 | menlovc.com | 7.44/10 | 2,600 | 1,893 | Aug 2023 |
| 2785 | qualaroo.com | 7.44/10 | 7,400 | 3,059 | May 2023 |
| 2786 | nmsdc.org | 7.44/10 | 7,300 | 2,198 | Nov 2023 |
| 2787 | ukrposhta.ua | 7.44/10 | 4,100 | 1,441 | Feb 2022 |
| 2788 | visma.com | 7.44/10 | 1,900 | 442 | Aug 2022 |
| 2789 | averydennison.com | 7.44/10 | 30,100 | 8,453 | Feb 2022 |
| 2790 | gymshark.com | 7.44/10 | 878,200 | 148,404 | Feb 2022 |
| 2791 | classpass.com | 7.44/10 | 301,500 | 206,878 | Feb 2022 |
| 2792 | atgtickets.com | 7.44/10 | 26,300 | 16,569 | Feb 2022 |
| 2793 | malaysia.gov.my | 7.44/10 | 3,500 | 1,600 | Apr 2023 |
| 2794 | climatempo.com.br | 7.44/10 | 18,000 | 8,056 | Feb 2022 |
| 2795 | hitched.co.uk | 7.44/10 | 133,200 | 78,804 | Feb 2022 |
| 2796 | shiseido.com | 7.44/10 | 58,400 | 16,746 | Feb 2022 |
| 2797 | education.govt.nz | 7.44/10 | 1,800 | 3,401 | Oct 2023 |
| 2798 | sharecare.com | 7.44/10 | 90,500 | 300,727 | Feb 2022 |
| 2799 | eab.com | 7.44/10 | 10,800 | 8,622 | Feb 2022 |
| 2800 | ramboll.com | 7.44/10 | 4,300 | 3,802 | Jul 2023 |
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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