Blog
Guides, case studies, and industry news from the Dev Centre House Ireland team.
Learn how to model realistic traffic, test capacity, monitor bottlenecks and prepare your website for campaigns, launches and sudden demand.
Learn what to test before launch, from Core Web Vitals and mobile speed to load handling, APIs, databases and resilience.
Understand WCAG principles, conformance levels and practical accessibility requirements, including what Irish organisations should consider when planning digital projects.
Learn how accessibility testing combines automated tools, manual review and assistive-technology checks to identify barriers across websites and web applications.
Compare WebP and AVIF across compression, browser compatibility, quality and publishing workflows to choose a practical image strategy.
Learn how to size, compress, format and deliver website images for faster pages, better accessibility and stronger search visibility across U.S. audiences.
Learn how deferred resource loading reduces unnecessary initial requests, where it improves page speed, and which images U.S. websites should keep eager.
Understand the difference between browser-side and server-side caching, where each operates and how both can improve website performance.
Understand how browser, CDN and server caches reduce repeated work, and learn how to balance faster delivery with content freshness and security.
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