As I mentioned in the introduction,

[kexej28769@nongnue]

Note that these technologies are not mutually exclusive. The single-page app model (brought to maturity with AngularJS in 2010) obviously predates service workers and PWAs by some time. As we’ll see, it’s also entirely possible to build a PWA that isn’t built as a single-page app. However, for the purposes of this article, we’re going to focus on the ‘generic’ approach to developing modern PWAs, exploring the SEO implications — and opportunities — that face teams that choose to join the rapidly growing number of organizations thatاوپر بیان کی گئی دو ٹیکنالوجیز استعمال کرتا ہے ۔

We'll start with the app shell architecture and the rendering implications of the single-page app model.

2. App Shell Architecture
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In short, app shell architecture involves aggressively brazil number data static assets (at least the UI and functionality) and then dynamically loading the actual content using JavaScript. Most modern JavaScript SPA frameworks encourage something resembling this approach, and thus separating logic and content benefits both speed and usability . Interactions feel immediate, as if they were on a native app, and data usage can be extremely economical.



A overreliance on client-side JavaScript is a problem for SEO . Historically, many of these problems have centered around the fact that search engines need unique URLs to discover and index content, but single-page apps don’t need to change the URL for every state of the application or website (hence the phrase ‘single page’). Relying on fragment identifiers – which are not sent as part of the HTTP request – to dynamically manipulate content without reloading the page was a major headache for SEO. Older solutions included replacing the hash with a so-called hashbang (#!) and the _escaped_fragment_parameter, a hack that has long been deprecated and which we won’t explore today.