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Caricamento lento
Il caricamento lento consente di caricare le pagine più velocemente, riduce il consumo di risorse e la concorrenza e migliora il tasso di visibilità mettendo in pausa la richiesta e il rendering degli annunci finché non si avvicinano all'area visibile dell'utente.
Con il caricamento lento in SRA, quando la prima area annuncio rientra nell'area visibile specificata dal parametro fetchMarginPercent, viene effettuata la chiamata per quell'annuncio e per tutte le altre aree annuncio.
[null,null,[],[],[],null,["# Lazy loading\n============\n\nLazy loading enables pages to load faster, reduces resource consumption and\ncontention, and improves viewability rate by pausing the requesting and\nrendering of ads until they approach the user's viewport.\n\nWith lazy loading in SRA, when the first ad slot comes within the viewport\nspecified by the [`fetchMarginPercent`](//developers.google.com/publisher-tag/reference#googletag.config.LazyLoadConfig.fetchMarginPercent) property,\nthe call for that ad and all other ad slots is made.\n\nSample implementation\n---------------------\n\n[View demo](https://googleads.github.io/google-publisher-tag-samples/lazy-loading/js/demo.html) This sample makes use of library features that are not fully supported when running in an iframe. To view a demo of this sample in a new window, click the **View demo** button above. \n\n### JavaScript\n\nLoading...\n----------\n\nLoading...\n----------\n\n[Improve this sample](https://github.com/googleads/google-publisher-tag-samples/tree/main/dist/lazy-loading/js) [Report an issue](https://github.com/googleads/google-publisher-tag-samples/issues/new?labels=documentation&template=sample-feedback.md&title=Sample+feedback%3A+lazy-loading/js)\n\n### TypeScript\n\nLoading...\n----------\n\nLoading...\n----------\n\n[Improve this sample](https://github.com/googleads/google-publisher-tag-samples/tree/main/dist/lazy-loading/ts) [Report an issue](https://github.com/googleads/google-publisher-tag-samples/issues/new?labels=documentation&template=sample-feedback.md&title=Sample+feedback%3A+lazy-loading/ts)"]]
