The NithuDev journal
Practical guides to website performance, security, SEO, ecommerce, automation and redesign. Understand what needs fixing, compare your options and plan your next website project.
The guide library
242 published guides · Page 10
A failed request can come from an outdated reference, missing file or blocked delivery. Identify the resource and its owner before changing redirects or caches.
Read the guideA service worker can serve content independently of ordinary server caching. Identify its owner and update strategy before clearing storage or changing delivery rules.
Read the guideBack/forward cache can restore a page differently from a normal reload. Test the returned interface and current application state as well as browser eligibility.
Read the guideContent visibility can reduce rendering work for suitable offscreen sections. It does not remove downloads or replace pagination, accessible structure and careful testing.
Read the guideMeasure opening and using the menu, especially during loading. Simplify unnecessary work without removing useful destinations or accessible operation.
Read the guideA desktop section hidden with CSS may still affect resource loading. Inspect actual mobile requests and choose an appropriate media structure for the design.
Read the guideAn icon library loaded for a few symbols may be worth simplifying. Compare actual delivery and preserve an accessible name for every meaningful control.
Read the guideA hint should address a measured discovery or connection delay. Adding hints for every domain or file can waste resources and compete with important content.
Read the guideLong-lived caching needs a dependable update strategy. Version public assets deliberately and keep private or changing application responses under their proper rules.
Read the guideInspect the actual response before enabling another setting. Compression of text resources is different from reducing image dimensions or browser execution work.
Read the guideA cache purge can expose mismatched HTML and generated assets. Identify which file is missing or outdated and which layer still references it.
Read the guideA stylesheet that is unused during one screenshot may be needed by a menu, error or mobile state. Test those states before removing or delaying rules.
Read the guideFrom understanding to implementation
I’m Nithu / Suthakaran Nithursan. I build, repair and improve websites, with services covering performance, security recovery, Shopify and clinic websites. These guides help you ask better questions; a project review helps define the work your website actually needs.
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