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 13
A large database is not automatically a slow database. Identify expensive queries and frequently loaded data before deleting records or changing autoload behaviour.
Read the guideA slow first response is a clue, not proof that the host is at fault. Compare cache states and investigate the work required to generate the affected…
Read the guideUse the typefaces and weights your design actually needs. Test readable fallback text and heading stability before adding preload hints.
Read the guideScript-loading options are not interchangeable. Identify dependencies and essential interactions before applying broad delay or optimization rules.
Read the guideStart with display size and visual quality, then choose a format and loading strategy. A smaller file is useful only if the right image reaches the right…
Read the guideA CDN can improve eligible content delivery, but it does not repair every server or browser bottleneck. Define what is cached and what must remain dynamic.
Read the guideChoose a performance tool that fits the server and existing configuration. Neither plugin removes the need for diagnosis, exclusions and regression testing.
Read the guideDifferent caches store different things. Identify which layer applies to the slow request before changing settings or installing another plugin.
Read the guideCheckout is personalised and should not be served as a shared cached page. Investigate the slow request and preserve native order and payment verification.
Read the guideAudit the templates and widgets visitors actually use. Elementor performance work should preserve the editor, responsive design and important interactions.
Read the guideLab tests help diagnose a page now. Field data describes sampled real visits over time. They answer different questions and should be reported separately.
Read the guideReserve space for content before it arrives and check for movement throughout the visit. A stable first screen does not rule out later layout shifts.
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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