Caching options can be set up for less or more extended amounts of time before caches expire.
- Mobile vs. Desktop
- User and page
- Cache duration
- Cache preloading
- Preload XML sitemaps
- Prefetch DNS requests
- Preload fonts
- Cache rules
- Database cleanup and maintenance
Mobile Vs. Desktop
There are options to use caching for desktop and mobile devices separately. If a website is responsive, there’s no need to cache separate files for mobile.
However, when developers create independent code for device types and different websites, it’s beneficial to cache web pages for desktop and mobile-friendly user experience.
User And Page
Caching can be created per user and page, and choosing not to serve a cached URL can be done at the page level.
The lifespan of cache files is determined in hours, and the website’s size defines how often to rebuild the cache. We must note that caching pages on the web server and caching via CDN are two different caches altogether.
The CDN, in most configurations, will cache the files as they’ve been configured to cache on the web server.
Caching can result in a much faster loading time for your web pages. You should use several preloading methods, including sitemap-based caching and linking from static files, to reduce downtime when navigating pages.
When someone visits any page on their browser, it goes through its list of loadable assets like images, scripts, stylesheets, fonts, and 3rd party external files.
Preload XML Sitemaps
It may be suitable for pages with high traffic to load to preload cache based upon XML sitemaps and specified by absolute URLs. Technical SEO masters can also designate specific pages for preloading when users hover contextual links; that’s an instrumental technology to speed up pages and make the entire site faster.
Prefetch DNS Requests
Let’s now discuss using DNS to make the site faster relative to caching. Prefetching DNS requests from external hosts is a great way to load external files quickly on mobile networks and is vital to reduce DNS lookups and process DNS resolution when the external resource requests.
Too much third-party content is unsuitable for performance, and DNS prefetching is a straightforward way to boost the load time.
Font files can also be preloaded when hosted on the domain and are a viable alternative to improve speed slightly instead of fetching fonts from third-party resources.
Sensitive pages, user-agent strings, cookie IDS, and query strings can be cached site-wide or page-level for optimized performance.
Database Cleanup And Maintenance
The following actions can speed up the website databases:
- Optimize database tables.
- Remove transients.
- Delete spam and trash comments, post revisions, drafts, and trash content in the blog.