CMS Customization & Development Company

WordPress theme customization modifies an existing free or purchased theme through the Theme Customizer, CSS, or targeted PHP changes, making it suitable when the theme already closely matches the required design. Custom theme development builds the entire theme from scratch using PHP, JavaScript, CSS, and theme.json, delivering a unique design, better performance, cleaner code, and long-term maintainability. Theme customization is faster and lower cost but creates dependency on the original theme vendor and limits design flexibility. Custom theme development has a higher upfront cost but gives the organisation complete ownership of the codebase with no third-party theme dependency or visual similarity to other websites.

Gutenberg is WordPress's native block editor, where every content element is a structured block, and custom React-based blocks can be built for site-specific content without developer involvement. Unlike page builders such as Elementor, Divi, or WPBakery, Gutenberg produces clean, semantic HTML, loads only the required CSS and JavaScript, avoids proprietary shortcode lock-in and ongoing plugin dependency, and keeps layout, spacing, and typography under theme control. The result is better performance, stronger Core Web Vitals, consistent design, and long-term maintainability while retaining flexible page building for content editors.

Headless WordPress uses WordPress only as the content management backend, while a separate React frontend built with Next.js or Gatsby consumes content through the REST API or WPGraphQL. This architecture delivers greater performance, flexibility, static site generation, edge rendering, PWA capabilities, and supports multiple frontends such as websites, mobile apps, and third-party integrations. Choose headless WordPress for React-based applications with complex interactivity or multi-channel content delivery. Choose traditional WordPress when Gutenberg themes meet your requirements, your team prefers PHP, or simplicity and lower operational complexity are priorities.

Slow WordPress sites are usually caused by five factors: excessive or poorly coded plugins, page builder bloat (Elementor, Divi), missing caching, unoptimised images, or inadequate hosting. Improve performance by auditing plugins, replacing page builders with custom Gutenberg themes where appropriate, enabling full-page and object caching (WP Rocket, LiteSpeed Cache, Redis, Memcached), optimising images with WebP, lazy loading, and an image CDN, and upgrading to managed WordPress hosting or a VPS with Nginx and PHP-FPM. The recommended order is: improve hosting, enable caching, optimise images, then address plugin and theme bloat.

CMS security requires ongoing maintenance through regular updates to the CMS core, plugins/extensions/modules, and PHP, removing unused components, enforcing strong passwords and 2FA, and deploying a Web Application Firewall (Cloudflare WAF, Wordfence, or similar). For WordPress, secure the login page, disable XML-RPC if unused, and disable admin file editing. For Drupal, monitor and apply Security Advisories promptly, while Joomla sites should avoid outdated or unmaintained extensions. Across all platforms, maintain automated off-server backups and regularly test restoration to ensure rapid recovery from attacks.

Project timelines depend on scope and design readiness. A custom WordPress site typically takes 5-8 weeks, WooCommerce and Multisite projects 6-10 weeks, headless WordPress with Next.js 8-14 weeks, and Drupal sites with custom modules 8-14 weeks. Drupal 7/8/9 to 10/11 migrations usually require 6-12 weeks, while Joomla 3 to 4/5 migrations take 4-8 weeks. These estimates assume designs are finalised before development and content is supplied or migrated without ongoing design revisions, which are a common cause of project delays.

Yes. We provide ongoing CMS maintenance through three service tiers: security and updates (core and plugin/module/extension updates, staging validation, malware scanning, SSL monitoring, and incident response), performance monitoring (Lighthouse/PageSpeed checks, uptime monitoring, and database optimisation), and feature development retainers for new Gutenberg blocks, templates, plugins, configuration changes, and content types. Every engagement is governed by an SLA defining update procedures, response times (P1 same business day, P2 within 2-3 business days), and annual maintenance plans with fixed monthly pricing based on site complexity.

Custom WordPress theme and Gutenberg block development, WooCommerce custom development, WordPress plugin development, multisite and headless WordPress; Drupal custom module development, content architecture, and Drupal 7/8/9 to 10/11 migration; and Joomla custom template and extension development and Joomla 3 to 4/5 migration.

Yes. Evolution Infosystem develops custom Gutenberg blocks in React for WordPress sites, allowing content teams to build flexible page layouts without page builder plugin dependency.

Yes, including Razorpay, PayU, and Cashfree payment gateway integration, GST invoice generation with GSTIN checkout field, and custom product types for Indian e-commerce requirements.

Yes. Evolution Infosystem migrates Drupal 7, 8, and 9 sites to Drupal 10/11 using the Drupal Migration API, including custom module auditing, content migration, and theme rebuild.

Yes. Evolution Infosystem builds headless WordPress implementations using WPGraphQL and the REST API as content backend, with Next.js or Gatsby as the React frontend.

Yes, including monthly core and plugin updates applied to staging before production, security scanning, performance monitoring, and backup management.