Author: Arunangshu Das

In today’s web development landscape, performance, accessibility, and SEO play a crucial role in user experience and business success. Google Lighthouse, an open-source auditing tool, is a powerhouse when it comes to evaluating these key areas. Whether you’re a developer optimizing your website, an SEO professional aiming for better rankings, or a business owner looking to improve conversions, mastering Lighthouse can help you achieve your goals. But simply running a Lighthouse audit isn’t enough. To truly leverage its potential, you need to understand how to interpret the results and implement meaningful improvements. 1. Run Lighthouse Audits in Different Environments Lighthouse…

Google Lighthouse is an invaluable tool for developers, SEO specialists, and website owners who want to improve their site’s performance, accessibility, and best practices. It provides insights into what’s slowing down a webpage and offers actionable recommendations. However, many people make mistakes when using Lighthouse, leading to misinterpretations and ineffective optimizations. If you’ve been using Lighthouse and not seeing the improvements you expected, you might be falling into one of these common traps. Lorem ipsum dolor sit amet, consectetur adipi 1. Running Lighthouse Tests in an Uncontrolled Environment The Mistake Many developers run Google Lighthouse audits directly in their main…

Website performance and user experience are critical in today’s fast-paced digital landscape. If your site loads slowly, has accessibility issues, or doesn’t follow SEO best practices, you risk losing visitors and potential customers. This is where Google Lighthouse comes in—a powerful, open-source tool that helps developers and website owners audit and improve their web pages. 1. Performance Optimization: Boosting Page Speed & Efficiency Why Performance Matters Page speed is directly linked to user engagement and SEO rankings. A slow-loading site frustrates users and increases bounce rates. According to Google, 53% of mobile users abandon a page if it takes more…

Cross-Origin Resource Sharing (CORS) is a browser security feature that restricts how resources on a web page can be requested from another domain. While CORS is essential for security, it often leads to frustrating errors when working with APIs, microservices, or cross-domain requests in JavaScript applications. 1. CORS Policy No ‘Access-Control-Allow-Origin’ Header Present Error Message: <pre data-line=””> <code readonly=”true”> <xmp>Access to fetch at ‘https://api.example.com/data’ from origin ‘http://localhost:3000’ has been blocked by CORS policy: No ‘Access-Control-Allow-Origin’ header is present on the requested resource. Why This Happens:Your browser blocks the request because the API doesn’t include the Access-Control-Allow-Origin header in the response.…

APIs (Application Programming Interfaces) are the backbone of modern software development. Whether you’re building a web application, a mobile app, or even integrating services in a microservices architecture, APIs serve as the primary way systems communicate. But at the heart of this communication lies HTTP methods, which dictate how data is exchanged between clients and servers. Understanding HTTP methods is essential for designing scalable, efficient, and RESTful APIs. What Are HTTP Methods? HTTP methods (also known as HTTP verbs) define the type of action that should be performed on a resource. In simple terms, they tell the server what to…

Developers in 2025 don’t just code; they orchestrate, automate, and optimize workflows like never before. The usual suspects—VS Code, GitHub, Docker—are still around, but the real game-changers are the lesser-known tools revolutionizing how developers work. These tools aren’t just about writing better code; they’re about streamlining the entire development lifecycle, from brainstorming to deployment and beyond. 1. Cursor AI – The AI-Powered Code Navigator While AI code assistants like GitHub Copilot and ChatGPT have been making waves, Cursor AI is changing how developers interact with their codebases. Unlike traditional AI autocomplete tools, Cursor AI acts as a true coding co-pilot,…

APIs are the backbone of modern web and mobile applications, allowing them to communicate seamlessly with backend services. Traditionally, REST (Representational State Transfer) has been the go-to approach for designing APIs, but in recent years, GraphQL has gained immense popularity as a more flexible and efficient alternative. GraphQL, developed by Facebook in 2012 and open-sourced in 2015, is a query language that enables clients to request only the data they need, reducing over-fetching and under-fetching issues common in REST APIs. If you’re still relying solely on REST, you might be missing out on the advantages GraphQL brings to the table.…

Building RESTful APIs is an essential skill for modern software development. Whether you’re developing a microservice architecture, integrating with third-party applications, or building APIs for mobile apps, REST APIs serve as the backbone of communication between systems. But here’s the truth: many developers unintentionally make mistakes that lead to poor API performance, security vulnerabilities, or bad developer experience. So, how can you ensure your RESTful API is well-designed, scalable, and easy to use? 1. Ignoring Proper HTTP Methods One of the biggest mistakes developers make is misusing HTTP methods. RESTful APIs rely on standard HTTP verbs to perform actions on…

APIs (Application Programming Interfaces) have revolutionized how software applications interact and share data. Among them, RESTful APIs stand out as the backbone of modern web and mobile applications, enabling seamless communication between services. Whether you’re a backend engineer designing APIs or a frontend developer consuming them, understanding the core features of RESTful APIs is essential. 1. Statelessness: Keeping It Simple and Scalable One of the defining characteristics of a RESTful API is statelessness. This means that each client request to the server must contain all the necessary information to be processed, without relying on previous requests. Why is Statelessness Important?…

Database transactions are the backbone of modern applications, ensuring data consistency, reliability, and integrity. However, improper transaction management can lead to data corruption, performance bottlenecks, and even system failures. 1. Not Using Transactions When Needed The Mistake Many developers forget to wrap multiple related database operations in a transaction. If an error occurs midway, only some changes might be applied, leaving the database in an inconsistent state. Example:Consider a bank transfer where we withdraw money from one account and deposit it into another: <pre data-line=””> <code readonly=”true”> <xmp>UPDATE accounts SET balance = balance – 500 WHERE id = 1; UPDATE…