31,873 websites use Intersection Observer as of October 2026. Download the full list of Intersection Observer websites with website, company, country and language.
API that can be used to understand the visibility and position of DOM elements relative to a containing element or to the top-level viewport.
www.w3.org/TR/intersection-observer
As of October 14, 2026, TechLeads detects Intersection Observer on 31,873 websites: 0.02% of JavaScript libraries detections, the 108th most-used of 359 JavaScript libraries technologies we track.
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TechLeads. "Companies Using Intersection Observer." Data as of October 14, 2026. https://techleads.fyi/technology/intersection-observerHTML link
<a href="https://techleads.fyi/technology/intersection-observer">Companies using Intersection Observer (TechLeads data)</a>Sample results for Intersection Observer
| Rank | Icon | Website | Title | Description | Company | Country | Language |
|---|---|---|---|---|---|---|---|
| #1,000 | Republic of Ireland store closure help | Argos | Republic of Ireland closure frequently asked questions. Same day delivery 7 days a week, or fast store collection. | - | GB | en | ||
| #1,647 | Du Lac et Du Parc Grand Resort ****S | Sito Ufficiale Du Lac et Du Parc Grand Resort , un hotel lusso 4 stelle situato a Riva del Garda. Prenota una camera nel nostro albergo a Riva Del Garda al .. | - | - | - | ||
| #2,536 | Search Engine Watch | The world’s longest-running search industry resources | Search Engine Watch | - | en | ||
| #2,547 | Support | SendPulse | We offer email and telephone support 24 hours a day. Check out our contacts! | SendPulse | - | - | ||
| #7,132 | wagner interior architecture & consulting - Architizer | Susanne Wagner, interior architect, speaker, consultant and product designer based at Lake Constance (Germany) works with clients and partners in central Europ… | - | - | - | ||
| #34,646 | fastlane - App automation done right | - | - | - | - | ||
| #7 | Sydney Removalists | Local Movers, 2,000+ Five-Star Reviews | Affordable Sydney removalists starting from $65 per half hour. Full-service moves, houses, apartments, warehouses, and more. No hidden fees, no surprises. | A1 REMOVALISTS SYDNEY PTY. LTD. | - | eng | ||
| #8 | Gigafibra - Internet 100% Fibra Optica | Gigafibra cuenta con una red 100% fibra óptica que ofrece todas las facilidades y seguridad para tu Hogar, Negocio y Condominio | Gigafibra SAS | - | spa | ||
| #9 | Grande Real Santa Eulália Resort & Hotel Spa – Official Website | Beachfront 5-star resort in Albufeira with family villas, spa, pools, and kid’s club. Book direct for best rates & exclusive benefits. | Grande Real Santa Eulália Resort & Hotel Spa | - | afr | ||
| #10 | Grand Permata Hijau Hotel Sukabumi | Temukan ketenangan oase modern di Grand Permata Hijau, hotel di Sukabumi yang mengutamakan kenyamanan menginap dan hidangan yang lezat. | Grand Permata Hijau | - | eng | ||
| #11 | Electrische scooter voor elk budget - AGM Goccia | Krachtig, wendbaar, betaalbaar | Krachtig, wendbaar en betaalbaar. De nieuwe standaard in elektrisch rijden. De AGM Goccia heeft alles wat je van een elektrische scooter mag verwachten. Een uniek design, duurzame componenten en perfecte rijeigenschappen. | AGM Goccia - Electrische scooter voor elk budget | - | nld | ||
| #12 | Greenfields Waste | Skip Bins & Waste Management Sydney | Experts in waste management solutions Sydney. Whether you are renovating a home or office or construction project, you can count on us. | Greenfields Waste | - | eng | ||
| #13 | Hainason | Hainason is a world leader in supplying superior quality Aluminium and Metals in coil, plate, sheet, pipe, extrusion, merchant and structural sections. | Hainason | - | eng | ||
| #14 | 福岡県で動物病院の求人ならASAP動物病院 | スキルアップを手厚くサポート | 福岡県の動物病院では、獣医療の向上を目指し、新たなスタッフを募集しています。高水準な医療環境でスキルアップを図れる機会が提供され、資格取得やセミナー費用は全額負担されます。 | 有限会社アサップ | - | eng | ||
| #15 | Hashotel, jouw perfecte hotel in Hasselt | Zoek je een gezellig hotel in Hasselt? Welkom bij HasHotel! Van een verkwikkende nachtrust en een uitgebreid ontbijt tot een smakelijk diner … hier geniet je all-in. | Hashotel | - | nld | ||
| #16 | 大阪府羽曳野市で訪問看護の求人なら株式会社アテナメディカルケア | 在宅療養を支援する職場の求人 | 地域での在宅ケアを重視し、住み慣れたご自宅での生活を支える看護を提供しています。羽曳野市や近隣エリアでの幅広いサービスを展開し、個々のニーズに応じた支援を行っています。 | 在宅療養を支援する職場の求人 | 大阪府羽曳野市で訪問看護の求人なら株式会社アテナメディカルケア | - | eng | ||
| #17 | 煌達精密工業有限公司 - 風箱式伸縮護罩,不鏽鋼式伸縮護罩,捲筒伸縮護罩 | 煌達精密工業有限公司提供風箱式伸縮護罩，不鏽鋼式伸縮護罩，捲筒伸縮護罩，鋁合金護裙，圓型式伸縮護罩，模組式伸縮護罩，天棚式伸縮護罩，工業毛刷，刮刷片，位於新北廠商，新北鋁合金護裙 | 煌達精密工業有限公司 | - | cat | ||
| #18 | 埼玉のリフォームなら株式会社オークランド | 完全自社施工で一貫して対応 | 雨漏り対策には防水シートを使い、屋根工事は地震対策にも配慮しています。地域特性に応じた雨樋工事や外壁塗装も行い、リフォームや電気工事も柔軟に対応。 | 株式会社オークランド | - | eng | ||
| #19 | Luxury Ubud Accommodation - Impiana Private Villas Ubud Bali | Stay in luxury Ubud accommodation with private villas, wellness experiences, jungle views and authentic Balinese hospitality. | Impiana Private Villas Ubud Bali | - | eng | ||
| #20 | BeBetter - Dr. Volodymyr Malchenko | Direct Anterior Restoration In this webinar, we will talk about third and fourth class restorations. These defects are quite difficult for a number of multiple reasons. We’ll talk about how to minimize corrections. Make it easier to hit the color of our work. We will pay special attention to restori | BeBetter | - | eng | ||
| #21 | 福岡のリフォームならインテリア心和 | 快適な住まいを支える内装施工 | 内装工事を通じて快適で美しい住空間を提供しています。福岡を拠点とし、リフォームや補修、設備工事まで幅広く対応し、一つ一つの工程を丁寧に行います。 | インテリア心和 | - | eng | ||
| #22 | 大阪のタトゥーならjohnny rongrong tattoostudio | アーティストによる高品質な施術 | 大阪で高品質なタトゥーサービスを提供しています。経験豊富なアーティストが、お客様の思いを丁寧に描き出し、オリジナルデザインから定型イラストまで幅広いニーズに対応しています。 | アーティストによる高品質な施術 | 大阪のタトゥーならjohnny rongrong tattoostudio | - | eng | ||
| #23 | Kaiserstein Palace Apartments - Kaiserstein Palace Apartments - | Live where elegance, history, and sophistication meet. At the Kaiserstein Palace Apartments, you’ll experience a lifestyle unlike any other – surrounded by baroque beauty, yet wrapped in modern comfort | Kaiserstein Palace Apartments | - | eng | ||
| #24 | 愛知県名古屋の日本料理なら割烹 嘉とう | 炭火と出汁が織りなす至福の時間 | 割烹嘉とうでは、旬の食材を活かした日本料理をアラカルトまたはコースでお楽しみいただけます。炭火焼きや丁寧に仕上げた逸品を提供し、厳選した日本酒やワインとの相性を大切にしています。 | 割烹 嘉とう | - | eng | ||
| #25 | 東京都赤羽のキックボクシングならパーソナルキックボクシングKICK LIFE | プロの目線で効率よく脂肪燃焼 | キックボクシングによるパーソナルトレーニングを提供し、経験豊富なトレーナーがマンツーマンでサポートします。柔軟な料金プランとアットホームな環境で、ダイエットや身体づくりを目指す方に最適です。 | パーソナルキックボクシングKICK LIFE | - | eng |
The most-used JavaScript libraries technologies in the TechLeads index, by number of websites. Intersection Observer accounts for 0.02% of JavaScript libraries detections (31,873 websites).
| Technology | Websites | Share of JavaScript libraries |
|---|---|---|
| jQuery | 38,971,825 | 29.7% |
| jQuery Migrate | 15,413,109 | 11.7% |
| core-js | 9,046,707 | 6.9% |
| Swiper | 6,571,081 | 5.0% |
| jQuery UI | 6,423,425 | 4.9% |
| OWL Carousel | 3,928,149 | 3.0% |
| Lodash | 3,179,022 | 2.4% |
| Slick | 3,122,019 | 2.4% |
| Popper.js |
TechLeads scans public websites and identifies Intersection Observer from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Website counts refresh daily; this page uses data from October 14, 2026. Counts only include websites we have scanned, so they can differ from other providers.
Complete Intersection Observer website dataset in CSV. One-time purchase.
Secure checkout · 7-day download access| 2,442,735 |
| 1.9% |
| Underscore.js | 2,178,674 | 1.7% |
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Distribution of websites using Intersection Observer across countries in the TechLeads database.
| Country | Sites |
|---|---|
| United States(US) | 63 |
| United Kingdom(GB) | 11 |
| Australia(AU) | 8 |
| France(FR) | 7 |
| Italy(IT) | 6 |
| Germany(DE) | 6 |
| Spain(ES) | 4 |
| India(IN) | 2 |
| Greece(GR) | 2 |
| Portugal(PT) | 1 |
| Hong Kong SAR China(HK) | 1 |
| Peru(PE) | 1 |
| Estonia(EE) | 1 |
| Israel(IL) | 1 |
| Poland(PL) | 1 |
| Brazil(BR) | 1 |
| Taiwan(TW) | 1 |
| Czechia(CZ) | 1 |
| Sweden(SE) | 1 |
| Japan(JP) | 1 |
Technologies most frequently detected on the same websites as Intersection Observer.
656 new sites in the last 12 weeks
Sites where we first detected Intersection Observer, by week (UTC, weeks start Monday). Counts follow our discovery coverage, so weekly totals can vary.
API that can be used to understand the visibility and position of DOM elements relative to a containing element or to the top-level viewport.
Our comprehensive database contains 31,873 websites using Intersection Observer, making it the most complete Intersection Observer sites list available. This Intersection Observer customer websites directory helps businesses detect websites using Intersection Observer and identify potential leads.
The largest concentrations of Intersection Observer websites are in US, GB, AU, based on our indexed country data.
Websites using Intersection Observer commonly also use jQuery, Google Analytics, jsDelivr, Google Tag Manager, Modernizr — reflecting typical Intersection Observer technology stacks.
Our Intersection Observer technology detection system scans millions of websites to identify those powered by Intersection Observer. This list of sites with Intersection Observer includes detailed information such as company names, contact details, social media profiles, and website rankings. Whether you're looking for top websites with Intersection Observer or exploring Intersection Observer adoption trends, our database provides comprehensive insights.
Each entry in our Intersection Observer 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 Intersection Observer and reach out to potential customers or partners.
Get instant access to the full list of sites with Intersection Observer in CSV format. Our dataset includes all 31,873 Intersection Observer 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 Intersection Observer powered websites.