1,513,842 websites in the live index use LazySizes as of October 2026. Download the full list of LazySizes websites with website, company, country and language.
LazySizes is a JavaScript library used to delay the loading of images (iframes, scripts, etc) until they come into view.
As of October 21, 2026, TechLeads detects LazySizes on 1,513,842 websites: 43.6% of Performance detections, the 1st most-used of 45 Performance technologies we track.
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TechLeads. "Companies Using LazySizes." Data as of October 21, 2026. https://techleads.fyi/technology/lazysizesHTML link
<a href="https://techleads.fyi/technology/lazysizes">Companies using LazySizes (TechLeads data)</a>Sample results for LazySizes
| Rank | Icon | Website | Title | Description | Company | Country | Language |
|---|---|---|---|---|---|---|---|
| #414 | Investopedia | Investopedia is the world's leading source of financial content on the web, ranging from market news to retirement strategies, investing education to insights from advisors. | Investopedia | - | en | ||
| #432 | Support Slate's Journalism. Subscribe to Slate Plus. | Support Slate's journalism with a Slate Plus subscription and receive a suite of benefits, including unlimited articles and ad-free podcasts. | - | - | - | ||
| #513 | Xantium | Join me on Suno | I am Xantium, a visionary at heart, With skills as sharp as a thousand sparks. Images and music, birthed from my soul, Electronics and automotive, making systems whole. Art and tech, I blend them seamlessly, A pioneer exploring, through space and time boundlessly. Commercially trained, computer scie | - | - | - | ||
| #601 | Miro | MultiFrame creates individual frames around a selection of items. | - | - | - | ||
| #701 | DeVon Franklin Marries Maria Castillo in 'Deeply Spiritual,' Star-Studded Wedding (Exclusive) | DeVon Franklin married Maria Castillo in a 'deeply spiritual' and star-studded wedding in Los Angeles on Aug. 2. 'The vision was to create something that feels like us and brings our friends and family into our love story,' the producer exclusively tells PEOPLE. | People.com | - | en | ||
| #720 | National Academy of Medicine | Advancing Health Care | NAM | NAM advances science, informs policy, and catalyzes action to achieve human health, equity, and well-being. | Social Driver | US | en | ||
| #807 | Enterprise Open Source and Linux | Ubuntu | Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop, cloud, and IoT. | - | - | - | ||
| #959 | - World Match Racing Tour | The world's longest running professional sailing series featuring world championship events across the globe, officially sanctioned by World Sailing. | World Match Racing Tour | US | en-US | ||
| #1,000 | Soccer on ESPN - Scores, Stats and Highlights | Visit ESPN for soccer live scores, highlights and news from all major soccer leagues. Stream games on ESPN and play Fantasy Soccer. | ESPN.com | - | en | ||
| #1,000 | Goodreads | Discover and share books you love on Goodreads, the world | Goodreads | - | - | ||
| #1,000 | Share Market Tips, BSE/NSE India, Gold Rate, Mutual Funds, Finance & Currency News - Oneindia Money | Read all about personal finance, mutual funds, gold price today, share market tips, stock news, BSE and NSE India, insurance etc. See currency converter on dollar to rupee & rupee to all international market indices and more. | Goodreturns | US | en-us | ||
| #1,000 | IXL | Math, Language Arts, Science, Social Studies, and Spanish | IXL is the world | IXL Learning | US | en-US | ||
| #1,000 | Milliyet - Haberler, Son Dakika Haberleri ve Güncel Haber | Türkiye gündeminden son dakika haberleri, Dünyadan flaş gelişmeler, Ekonomi dünyasından en yeni haberler, Günün en önemli gazete haber başlıkları ve daha fazlası Milliyet | Milliyet | TR | tr | ||
| #1,000 | SPORT24 | Μόνο αθλητικά | Τα σημαντικότερα αθλητικά νέα της ημέρας στο SPORT24. Αθλητικές ειδήσεις, αρθρογραφία, ρεπορτάζ για ποδόσφαιρο, μπάσκετ & τα υπόλοιπα αθλήματα. | SPORT24 | GR | el | ||
| #1,000 | Nachrichten, aktuelle Schlagzeilen und Videos - n-tv.de | Nachrichten seriös, schnell und kompetent. Artikel und Videos aus Politik, Wirtschaft, Börse, Sport und aller Welt. | n-tv NACHRICHTEN | DE | de | ||
| #1,000 | Blic | Vesti dana iz Srbije, regiona i sveta | Pročitajte najnovije vesti dana iz sveta, politike, društva, ekonomije, zabave, sporta, kulture na Blicu. | Ringier AG | - | sr | ||
| #1,000 | Najnovije vijesti iz Hrvatske i svijeta | Jutarnji list – vodeći hrvatski dnevni portal s najnovijim vijestima iz politike, sporta, kulture i ekonomije. Pratite ekskluzivne reportaže i analize. | Jutarnji list | HR | hr-hr | ||
| #1,000 | Design - la Repubblica | Tutti gli articoli pubblicati, le gallerie fotografiche e i video pubblicati nella sezione Design | la Repubblica | IT | it | ||
| #1,000 | 漫画多すぎ！業界最大級のコミックシーモア｜無料で楽しめる！ | 【TVCM放送中】マンガ多すぎ！無料・SALEで毎日お得！マンガ・電子書籍よむならコミックシーモア（cmoa）☆アニメ化・ドラマ化など人気漫画の新刊も続々入荷！豊富な品ぞろえは業界最大級178万冊！無料試し読みに加え、1巻まるごと無料のマンガも充実！ | - | - | - | ||
| #1,000 | Hindi news, हिंदी न्यूज़ , Hindi Samachar, हिंदी समाचार, Latest News in Hindi, Breaking News in Hindi, ताजा ख़बरें, Aaj Tak News | - | - | - | - | ||
| #1,000 | �h�E�z�e���\�� - ���s�Ȃ炶����net | - | - | - | - | ||
| #1,129 | Твой Телевизор - телеканалы онлайн в прямом эфире | Вы можете бесплатно смотреть лучшие телеканалы России, Украины и других стран СНГ в прямом эфире в режиме онлайн. Смотрите лучшие бесплатные тв каналы онлайн в прямом эфире. Большая подборка популярных телеканалов из России и зарубежья на сайте. Откройте для себя мир удивительного цифрового телевиде | TV App - ТВ каналы России и СНГ | - | - | ||
| #1,215 | 電子チケット販売・イベント管理サービス teket (テケト)｜電子チケット販売・管理サービス。ライブ配信・リアルイベントをサポートします。 | クラシック 、コンサート、音楽・ライブ、スポーツ、演劇、お笑い、ダンスなどリアルイベントから、ライブ配信・アーカイブ配信などオンラインイベントまで、あらゆるジャンルに対応した電子チケット販売・管理サービス。指定席、抽選、来場者・データ分析、売上・販売・顧客管理など機能が充実。 | - | - | en | ||
| #1,724 | 株式会社フルハウス | 音楽づくりとサウンドのプロフェッショナルカンパニー | 音楽づくりとサウンドのプロフェッショナルカンパニー | 株式会社フルハウス | JP | ja | ||
| #1,800 | Taksi Lahti | Tilaa ilmaiseksi | Lataa Lahen Taksi sovellus! | Taksi Lahti | Tilaa ilmaiseksi | Lataa sovellus | Lahden alueen taxit palvelevat kaikissa tilanteissa. Tervetuloa hyvään kyytiin! | Taksi Lahti - Lahen Taksi | - | - |
The most-used Performance technologies in the TechLeads index, by number of websites. LazySizes accounts for 43.6% of Performance detections (1,513,842 websites).
| Technology | Websites | Share of Performance |
|---|---|---|
| WP Fastest Cache | 353,820 | 10.2% |
| Autoptimize | 253,977 | 7.3% |
| EWWW Image Optimizer | 245,369 | 7.1% |
| Cloudflare Rocket Loader | 204,240 | 5.9% |
| WP-Optimize | 126,233 | 3.6% |
| Google Cloud Trace | 104,598 | 3.0% |
| Lozad.js | 78,606 | 2.3% |
| Perfmatters | 62,119 | 1.8% |
TechLeads scans public websites and identifies LazySizes from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Website counts refresh daily; this page uses data from October 21, 2026. Counts only include websites we have scanned, so they can differ from other providers.
Complete LazySizes website dataset in CSV. One-time purchase.
Secure checkout · 7-day download access| Performance Lab |
| 59,439 |
| 1.7% |
| LazySizes unveilhooks plugin | 56,614 | 1.6% |
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Technologies most frequently detected on the same websites as LazySizes.
30,609 sites newly detected in the last 12 weeks
Sites where we first detected LazySizes, by week (UTC, weeks start Monday). These are newly detected sites, and the counts follow our discovery coverage.
LazySizes is a JavaScript library used to delay the loading of images (iframes, scripts, etc) until they come into view.
Our comprehensive database contains 1,513,842 websites using LazySizes, making it the most complete LazySizes sites list available. This LazySizes customer websites directory helps businesses detect websites using LazySizes and identify potential leads.
Websites using LazySizes commonly also use jQuery, Open Graph, Google Analytics, core-js, PHP — reflecting typical LazySizes technology stacks.
Our LazySizes technology detection system scans millions of websites to identify those powered by LazySizes. This list of sites with LazySizes includes detailed information such as company names, contact details, social media profiles, and website rankings. Whether you're looking for top websites with LazySizes or exploring LazySizes adoption trends, our database provides comprehensive insights.
Each entry in our LazySizes sites list includes valuable data points: domain name, global ranking, company information, contact details, social media links. This makes it easy to detect websites using LazySizes and reach out to potential customers or partners.
Get instant access to the full list of sites with LazySizes in CSV format. Our dataset includes all 1,513,842 LazySizes customer websites with complete contact information, perfect for lead generation, market research, and competitive analysis. The data is regularly updated to ensure accuracy and includes the latest LazySizes powered websites.