Polyfill is a technology that provides modern functionality to older, less advanced web browsers or environments, ensuring consistent and efficient user experience. Essentially, it is a fallback mechanism designed to fill in the gaps in browser compatibility by mimicking the API features of recent web standards. By using JavaScript code libraries or plugins, Polyfill identifies the browser's incapabilities and adapts accordingly, essentially "polyfilling" missing features. This technique enables developers to leverage the latest technologies without alienating users of older browsers, maintaining support, and ensuring a seamless integration of innovative web features.
9,179,034
websites using Polyfill
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Websites using Polyfill by countrymarket share · top 8 countries
🇩🇪Germany
🇬🇧United Kingdom
🇳🇱Netherlands
🇫🇷France
🇷🇺Russian Federation
🇮🇹Italy
🇦🇺Australia
🇨🇦Canada
0%1%2%3%4%
Websites using Polyfill by industrydetected industries
Shopping62%
SaaS & Cloud37%
Education0.4%
Law & Government0.2%
Travel0.1%
Aerospace & Defense0.1%
Websites using Polyfill
showing 25 of 9,179,034| Website | Country | Industry | Emails | Title / Description | Socials |
|---|---|---|---|---|---|
| - | - | accounting@roguefitness.com+13 | Rogue Fitness - Strength & Conditioning Equipment Rogue Fitness is the leading manufacturer in strength and conditioning equipment & an official sponsor of the CrossFit Games, Arnold Classic, and USA Weightlifting. From power racks, rigs, and barbells to shoes, apparel & accessories, our online store equips garage gyms, military, pros & more. |      | |
| 🇩🇪Germany | - | info@jointhesunnyside.de | Join The Sunny Side • Roadtrips, Städtereisen & Reiseabenteuer Reiseblog mit Reisetipps für Reiseziele rund um den Globus. Mit authentischen Reiseberichten zu individuellen Roadtrips, Städtereisen u.v.m. | | |
| - | SaaS & Cloud | erica@abgartgroup.com+2 | ABG Art Group | Public Art | Bay Area, CA, USA ABG ART GROUP is a family of three arts-focused initiatives dedicated to creating an ecosystem of community, creative wealth, and meaningful art.
ABG Projects - A Community-First Arts Consultant ABG - Our In-House Design Practice Artistic Business Guild - A Creative Resource Hub |  | |
| - | Shopping | dominic@keeferinctesting.com+3 | Keefer, Inc. Tested – The Straight Dirt on All things Moto | | |
| - | - | podcast@nonprofiteverything.com+1 | Nonprofit Everything – A podcast about everything nonprofit | | |
| - | - | alice_kijak@rd.com+37 | Reader’s Digest: Official Site to Subscribe & Find Great Reads Updated daily! Inspiring stories, hilarious jokes, and surprising advice on health, weight loss & more. Plus subscribe at the lowest rate! | | |
| - | Shopping | info@smpspower.com | Varieties of LED Power Supplies, Power Adapters, CCTV Power Supply Shop for top-quality SMPS LED power supply from China's leading manufacturer. Get the best selection of 12V, 24V and dimmable LED power supplies with excellent efficiency and performance. | | |
| - | - | aalabart@randstad.com+814 | The global leader in the HR services industry | Randstad Randstad is the global leader in the HR services industry. By combining our passion for people with the power of todayâs intelligent machines, we support people and organizations in realizing their true potential. Learn more about our company. | | |
| - | Shopping | sales@ruthsotnik.com | Ruth Sotnik - Õmblemine - Õmblemise kursused ja lõiked | Ruth Sotnik Õpetan Sind õmblema - osale veebikursustel, lae alla PDF lõikeid ja õpetusi, leia uut ja põnevat õmblusinfot blogist! | | |
| - | - | caroline@brainpoweredcoaching.com | Brain Powered Coaching Brain Powered Coaching
We are passionate about unleashing your potential through the powerful combination of Neuroscience and Coaching. | | |
| - | Shopping | ant@rationalrunner.com | Home | Rational Runner Information and reviews for all runners to help them improve and avoid injury. | | |
| 🇩🇪Germany | - | info@brillen-lounge.de | Brillen Lounge Optiker – Optiker Fachgeschäft | | |
| - | - | info@eclipsecannabis.com | Boulder Colorado's Best Recreational Dispensary | Eclipse Cannabis Experience one of Colorado's top dispensaries with premium flower and solventless concentrates. Visit Boulder’s favorite recreational cannabis shop! | | |
| - | - | feedback@abijita.com+1 | Abijita Foundation - Cybersecurity News, Analysis and Support Abijita.com is a premier destination for cybersecurity news, analysis, vulnerabilities, exploits, internet defense, breaking news and events. | | |
| 🇮🇱Israel | - | - | ד"ר מיקי היפלר: אורולוג – אונקולוג בכיר במחלקה לאורולוגיה, מרכז רפואי שמיר ד”ר מיקי הייפלר מומחה בכירורגיה אורולוגית עם התמחות בטיפול הכירורגי בסרטני כליה, ערמונית כיס שתן ואשכים. מומחה בגישות ניתוחיות בסיוע רובוט וזעיר-פולשניות. | | |
| 🇩🇪Germany | - | - | Icke in Buch – Initiative für chronisch kranke Kinder und deren Eltern | | |
| 🇭🇰Hong Kong | Shopping | - | Decor8 Furniture Hong Kong - Sofas, Beds, Coffee Tables, Dining Chairs, Office, Bar Stools, Lighting Furniture Hong Kong - Shop the best sofas, beds, tables, dining chairs, office furniture, bar stools & lighting - Furniture HK Outlet | | |
| - | - | - | Hotel Contempo Managua Nicaragua – Este hotel boutique elegante está a las afueras de Managua, a 12 minutos en coche del centro de la ciudad. Cuenta con un restaurante, spa, una piscina al aire libre y habitaciones bonitas, con conexión Wi-Fi gratuita | | |
| 🇵🇱Poland | SaaS & Cloud | - | Home - TRAIN FOR SKILLS | | |
| - | Shopping | - | Theosophia Journal Uluslararası Hakemli Dergi | | |
| 🇩🇪Germany | - | - | Animals Care Berlin e.V. – Tierschutz ohne Grenzen | | |
| 🇩🇪Germany | Shopping | - | Designmöbel aus Flugzeugteilen – Skypak Entdecken Sie einzigartige Designmöbel aus Flugzeugteilen. Jedes Stück erzählt seine eigene, faszinierende Geschichte aus der Luftfahrt. | | |
| 🇹🇷Turkey | - | - | YEO Teknoloji Enerji ve Endüstri A. Ş. | Bizce Mümkün! EPC, Güneş Enerjisi, Rüzgar Enerjisi, Enerji Yatırımları, Solar Enerji, Enerji Depolama Sistemleri, REAP Batarya. | | |
| - | - | - | Home - Bone and Joint Institute of Tennessee Welcome to Bone and Joint Institute of Tennessee's official website. For more, be sure to take a visit and give us a call with questions. | | |
| - | Shopping | - | ΑΡΧΙΚΗ - Aquafeed24 | |
Showing 25 of 9,179,034 websitesGet the full list →
Frequently asked
What is a Polyfill?›
A Polyfill is a piece of code that is used to provide modern functionality on older browsers that do not natively support it. It bridges the gap, allowing developers to use newer web features while maintaining backward compatibility with older browsers.
When should I use a Polyfill in my project?›
You should use a Polyfill in your project when you want to ensure that your web application works seamlessly across different browsers and versions, especially when making use of modern web features that are not supported by older browsers.
Can Polyfills cause performance issues in a web application?›
Although Polyfills help provide compatibility with older browsers, they can sometimes cause performance issues. Since they are essentially JavaScript code running in the browser, using a large number of Polyfills or large-sized Polyfills may slow down your application. To mitigate this, it's recommended to use only the necessary Polyfills and to load them conditionally, based on the user's browser.
How are Polyfills different from Shims?›
Both Polyfills and Shims serve the purpose of providing compatibility with older browsers, but they do so in slightly different ways. A Polyfill is used to replicate an entire API or functionality that is missing in the older browser, while a Shim typically modifies an existing API, often working around browser inconsistency or providing partial functionality of a missing API.
Are there any popular libraries that provide Polyfills?›
Yes, there are several popular libraries that provide Polyfills, such as core-js, polyfill.io, and Modernizr. These libraries detect browser support and only load the required Polyfills, making it easier to manage compatibility issues in your web applications.
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