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Caching, CDNs and Hosting: Speeding Up Your Shop Website
Once your photos are a sensible size, the next big speed factors are how quickly your server responds and whether visitors' browsers have to re-download the same files on every page. That's where caching and content delivery networks come in.
What caching means
- Browser caching: your site tells the visitor's browser it can keep a copy of files that rarely change (your logo, styles, fonts) for a while. On the next page or next visit, they load instantly from the phone instead of the internet.
- Server or page caching: instead of building each page from scratch for every visitor (common with WordPress), the server keeps a ready-made copy and sends that. This can make a big difference to how long the first byte takes to arrive.
What a CDN is
A content delivery network keeps copies of your site's files on servers in many locations, so they're delivered from somewhere close to the visitor. Many hosts and website builders include one; some offer one on a free plan.
What to check or ask
- Run PageSpeed Insights on your homepage and look for suggestions about server response time or "efficient cache policy".
- Using a website builder (Wix, Squarespace, Shopify and similar)? Hosting, caching and a CDN are typically handled for you. Focus on images and add-ons instead.
- Using WordPress or custom hosting? Ask your host or web person:
- "Is page caching turned on for my site?"
- "Do static files have browser cache headers?"
- "Is there a CDN in front of the site?"
- "Is my hosting plan shared with many busy sites?"
- Test again after any change, on the Mobile tab.
When hosting is the problem
Very cheap shared hosting can be slow at busy times. If your server response time is consistently slow even after caching, it may be worth discussing a better plan or a different host. See choosing a website builder or host.
Check your own site in seconds
Our free website check for auto repair shops looks at one page for broken links, Google basics, phone setup, HTTPS, image descriptions and business details for Google, and explains what it finds in plain English.
Official sources
- web.dev: Prevent unnecessary network requests with the HTTP Cache
- web.dev: Content delivery networks (CDNs)
- PageSpeed Insights
Related guides
- How to Compress and Resize Photos for Your Shop Website
- Plugins, Widgets and Chat Pop-ups: What Slows Your Shop Site Down
- Core Web Vitals Explained for Shop Owners (LCP, INP, CLS)
General information for shop owners, not legal advice. Last reviewed October 2026.