Page 15 - Web Performance
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Maxim Mironjuk
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September 08, 2025
Hydration mismatches in Vue and Nuxt are among the most frustrating debugging experiences in SSR development. The browser console shows "Hydration completed but contains mismatches," the UI flickers, and the error is hard to reproduce. This article explains the causes systematically and shows how to fix them for good.
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Maxim Mironjuk
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September 06, 2025
Tailwind CSS and Bootstrap 5 follow fundamentally different philosophies. Which one fits your project, team and maintenance budget? This comparison shows the real differences, no marketing, with concrete code side by sides.
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Maxim Mironjuk
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September 06, 2025
IndexedDB is the most powerful offline storage solution in the browser: structured data, gigabyte-scale capacity, transactions, indexes and asynchronous queries without ever blocking the UI thread. Once you master the fundamentals, you can build offline-first apps that work fully even without a network connection.
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Maxim Mironjuk
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September 04, 2025
A misconfigured font loading setup either shows invisible text while loading or a visible font swap complete with layout jump the moment the web font arrives. With the right combination of font-display, preload and subsetting, both can be avoided without giving up custom typography.
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Maxim Mironjuk
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September 03, 2025
Vue memory leaks almost always originate in the same three places: forgotten event listeners, timers that never get stopped, and watchers without cleanup when a component unmounts. Chrome devtools heap snapshots let you confirm any suspicion with solid evidence, instead of changing code based on guesswork that does not even touch the actual leak.
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Maxim Mironjuk
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September 02, 2025
Autowiring makes Symfony development convenient, but used carelessly it creates unnecessary objects on every single request. With lazy services, ghost objects and service subscribers, kernel boot performance can be noticeably improved without giving up autowiring entirely.
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Maxim Mironjuk
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September 02, 2025
A single GraphQL endpoint can serve thousands of different operation shapes, and classic endpoint-based APM fails outright at that point. GraphQL observability needs resolver-level tracing that makes every single field call visible, combined with OpenTelemetry standardization and distributed tracing across federation gateways.
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Maxim Mironjuk
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September 01, 2025
Every CSS stylesheet that gets loaded in the without optimization blocks the browser until it has been fully downloaded and parsed. Setting critical CSS inline and loading the rest asynchronously is the single most effective step you can take for better Core Web Vitals, and it can be implemented entirely at the CSS level.
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Maxim Mironjuk
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August 31, 2025
A single application server does not scale indefinitely and goes offline instantly on failure. HAProxy distributes requests across multiple backend servers, automatically detects failed instances through health checks, and turns several individual servers into a resilient, horizontally scalable unit.
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Maxim Mironjuk
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August 31, 2025
Measuring Web Vitals in a single page application is not trivial, because classic metrics were designed for server rendered multi page websites. With the web-vitals library, correct timing and true real user monitoring, LCP, INP and CLS can be reliably captured in Vue apps as well.
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