Polyfill
Polyfill refers to code that implements features in web browsers that don't natively support them, enabling modern JavaScript APIs to work in older browsers. Polyfills detect missing functionality and provide alternative implementations using available browser features. Common polyfills include support for Promise, fetch, Array methods, and CSS features in legacy browsers. Services like Polyfill.io provide automatic polyfill delivery based on the requesting browser's user agent. Polyfills help developers use modern web standards while maintaining backward compatibility. They are typically loaded conditionally to avoid unnecessary overhead in modern browsers. Polyfills differ from transpilers which convert syntax, whereas polyfills add missing runtime functionality.
Showing top 125 websites out of 548 total.
Domain | Version | Title | Page Rank | Lang |
|---|---|---|---|---|
| yaml.org | 3 | - YAML Ain't Markup Language | 5.6 | EN |
| ebi.ac.uk | 3 | EMBL-EBI homepage | EMBL-EBI | 5.4 | EN |
| markezine.jp | 3 | 4.9 | ||
| ikman.lk | 2 | ikman - Electronics, Cars, Property and Jobs in Sri Lanka | 4.6 | EN, SI, TA |
| turf-fr.com | 2 | TURF FR : PMU, Courses PMU, Paris, Pronostics & Résultats | 3.1 | FR |
| fast.ai | 3 | fast.ai - fast.ai—Making neural nets uncool again | 4.6 | EN |
| sema.org | 3 | 4.7 | ||
| embl.org | 3 | European Molecular Biology Laboratory | EMBL.org | 4.6 | EN |
| ausa.org | 3 | Voice for the Army, Support for the Soldier | AUSA | 4.5 | EN |
| soulgen.ai | 3 | 4.6 | ||
| artsteps.com | 2 | 4.3 | ||
| cndh.org.mx | 3 | 4.4 | ||
| iafc.org | 2 | 4.6 | ||
| theface.com | 3 | 4.6 | ||
| asis.org | 2 | 4.5 | ||
| uec.ch | 2 | 4.5 | ||
| sumofus.org | 2 | 4.0 | ||
| dgppn.de | 2 | 4.5 | ||
| wh00.ooo | 3 | 4.3 | ||
| 8fit.com | 3 | 4.5 | ||
| fens.org | 3 | 4.5 | ||
| sne.fr | 3 | 4.5 | ||
| spbda.ru | 3 | 4.4 | ||
| eko.org | 2 | 4.1 | ||
| moe.gov.eg | 3 | 3.7 |
Language Distribution
Quick Stats
- Total websites
- 548
- Category
- JavaScript libraries
- Languages detected
- 10
Related Technologies
- jQuery293,328
- jQuery Migrate105,506
- Slick61,010
- OWL Carousel53,193
- Modernizr51,033
- jQuery UI31,523
- Swiper22,638
- Lightbox17,085
Frequently Used With
- PHP264 sites
- jQuery250 sites
- Google Tag Manager231 sites
- HSTS193 sites
- Nginx192 sites
- Apache HTTP Server154 sites
- Google Analytics154 sites
- Cloudflare146 sites