It provides Joomla administrators and digital marketing teams with automated on-page SEO diagnostics, heading structure evaluations, image accessibility analysis, and Core Web Vitals checks.

Powered by the SEOWebChecker technical SEO analysis platform.

⚡ Key Features

Comprehensive On-Page Scoring (0–100): Calculates a full technical health score alongside letter grades (A+ through F).
Title Tag Diagnostics: Analyzes title length (30–60 characters) and Google search snippet readiness.
Meta Description Validation: Ensures meta descriptions fit optimal snippet character thresholds (70–160 characters).
Heading Hierarchy & Duplicate H1 Detection: Detects missing H1 headings and warns against duplicate H1 tags.
Image Accessibility (Alt Attributes): Identifies images missing descriptive alt attributes across articles.
Canonical Link Tag Validation: Verifies self-referential canonical tags to avoid duplicate content penalties.
Mobile Viewport & Core Web Vitals: Verifies mobile-first indexing compliance and checks for zoom-disabling settings.
OpenGraph & Twitter Card Cards: Validates social media preview cards for LinkedIn, Facebook, and X/Twitter.
Schema.org JSON-LD Structured Data: Validates JSON syntax inside structured data script blocks.
Zero Frontend Overhead: Native PHP 8.2 code running exclusively in administrator and AJAX workflows.

📦 Requirements

Joomla 5.x
PHP 8.2 or later

For site-wide automated crawls and historical tracking: https://seowebchecker.com/