DiagnoSEO – Fast and Automated On-page SEO
DiagnoSEO is a performance-first SEO plugin for WordPress users who want full control without bloat. DiagnoSEO is the lowest memory WordPress SEO plugin, confirmed by independent performance tests on WP Hive and Plugin Tests. Built for speed, scalability, and real SEO work, DiagnoSEO stays fast even on large and complex websites. It uses minimal memory, optimized code (less than 100KB of a ZIP file), and a clean architecture designed with Core Web Vitals in mind. This is not a plugin that adds features at the cost of performance. DiagnoSEO is built for websites where speed, control, and SEO quality actually matter. You get predictable performance backed by 17+ years of real-world SEO experience, and a plugin especially valued by experienced SEO specialists who need advanced SEO control, predictable behavior, and a clean interface. DiagnoSEO is also part of the DiagnoSEO SEO Software Suite, an AI-powered SEO platform with over 50 tools for audits, keyword research, competitor analysis, backlinks, and AI-assisted content workflows. The WordPress plugin works as a natural extension of this ecosystem. Who is DiagnoSEO for? 👤 DiagnoSEO is designed for users who want ease of use, control, and performance: Beginners who want clear and practical SEO guidance Bloggers and content creators Small and medium-sized businesses WooCommerce store owners Developers and agencies SEO professionals who care about performance and advanced SEO control The interface is clean and focused. Advanced options are available when needed, without overwhelming the user. Why choose DiagnoSEO? ⭐ Most SEO plugins try to do everything. DiagnoSEO focuses on what actually moves the needle. Instead of bloated dashboards and unnecessary features, DiagnoSEO helps you improve content quality, maintain full control over SEO signals, keep your website fast, and scale SEO safely as your site grows. It is a modern, performance-focused SEO plugin for websites that need more than basic SEO tweaks. DiagnoSEO was named a finalist at the European Search Awards 2025 in two major categories: Best SEO Software Suite and Best Software Innovation. This industry recognition underscores its innovation and effectiveness. Core SEO Features (Free) Custom meta titles and meta descriptions Meta tag templates Google search snippet preview Meta robots control Custom canonical URLs Advanced Schema.org support Breadcrumbs with HTML and Schema Open Graph metadata and social previews XML sitemap Optimization for multiple related keywords SEO checkpoints and actionable on-page recommendations Content analyzer with keyword placement checks Live SEO score while editing Redirect attachment pages to image files Easy insertion of analytics and tracking codes Fully compatible with Multi Premium WordPress Theme All features are built with performance and usability in mind. WordPress SEO Audit & Checker 🔍 See your SEO score instantly Find error-level issues hurting your visibility Discover quick SEO wins you can fix fast Get clear priorities on what to fix first Check posts, pages, products, and key SEO settings automatically in seconds DiagnoSEO also includes a built-in WordPress SEO Audit & Checker that helps you quickly review important on-page and site-wide SEO issues directly inside WP admin. It analyzes metadata, content, structure, links, images, accessibility, schema, WooCommerce products, and product categories using WordPress and DiagnoSEO plugin data only, so you get fast, actionable SEO insights in a lightweight workflow. Unique Pro SEO Features 🚀 DiagnoSEO Pro includes advanced SEO features rarely found in other SEO plugins. For a detailed feature comparison with other popular SEO plugins, see: Yoast vs Rank Math vs DiagnoSEO. Advanced Schema, E-E-A-T & SERP Enhancements ReviewedBy schema support for stronger E-E-A-T signals Post rating with stars and schema for higher click-through rates in SERPs SameAs schema support for better social media and brand entity connections LocalBusiness schema support Multiple Schema.org types per page Advanced Internal Linking & Content Structure Anchor text control in post lists without changing H1 for better SEO and UX Affiliate deeplink hider – a safer alternative to rel=”nofollow” that protects internal link equity and prevents link juice leaks Automatic table of contents for improved UX and internal linking SEO Categories widget for better internal linking of nested categories Advanced SEO Control & Privacy Advanced content quality checkpoints for better SEO audits XML sitemap with customizable filename for better privacy Meta referrer support for privacy and analytics control Performance-focused advanced options for better SEO, UX, and conversions These features are designed to solve real SEO problems, not to inflate feature lists. More Pro SEO Features 🔥 AI, Automation & Content Intelligence AI-powered meta title and meta description generator AI-powered comments generator Unlocked useful content quality and SEO checkpoints Related keyword suggestions based on semantics Internal linking suggestions Advanced SEO Management & Indexing Redirection manager with 301 and 302 redirects IndexNow support for super-fast indexing in Bing and Yandex Option to change all external links to nofollow (Multisite supported) Google News XML sitemap HTML sitemap block Content, UX & Visibility Enhancements Automatic table of contents and Table of Contents block Related & Featured posts widget Featured posts widget WooCommerce & Advanced Website SEO Advanced WooCommerce SEO metadata SEO Categories widget for WooCommerce DiagnoSEO SEO Software Suite Access DiagnoSEO Pro extends WordPress SEO with access to professional SEO tools and workflows beyond the WordPress dashboard. Access to professional SEO tools from the DiagnoSEO All-in-One SEO Software Suite Support for SEO audits, keyword research, competitor analysis, backlinks, and content workflows Website crawl tool access (e.g. 404 detects and 20 more factors) Access to super detailed and advanced SEO Checker tool (200+ factors) Access to competitors analysis SEO tool (using AI and real search data) Designed for SEO specialists, agencies, and teams managing SEO beyond WordPress Support & Professional Use Dedicated premium SEO support Read full features list and details AI-Powered SEO (Pro) 🤖🔥 AI-Assisted Metadata & Content Support DiagnoSEO Pro uses the OpenAI API to generate or improve: Meta titles Meta descriptions Contextual comments for posts Metadata are generated based on SEO best practices. AI tools are designed to save time, support consistent SEO workflows, and help maintain content quality at scale. Easy Migration 🔄 Switching to DiagnoSEO is simple and safe. You can import SEO data from other popular SEO plugins (Yoast SEO, Rank Math, SEOPress, and many more) with no data loss and no SEO risk. Why switch to DiagnoSEO? 🚀 If your current SEO setup feels slow, bloated, overly complex, or limiting in advanced SEO control, DiagnoSEO gives you back speed, clarity, and full control without compromising performance. Optimize smarter. Stay fast. Stay in control. Switch to DiagnoSEO and experience performance-first SEO for WordPress.
Infy SEO – Image SEO Optimizer
Rank higher on Google Images without touching your media library by hand. Image SEO Optimizer writes WCAG-compliant alt text, SEO-friendly filenames and titles for thousands of WordPress images at once — using your choice of Gemini, Claude or GPT. Rename safely: every filename change is auto-301-redirected. Looking for more features? Check out Image SEO Optimizer Pro. Why Image SEO Optimizer? Images are crucial for SEO, but manually optimizing hundreds of images is time-consuming. Our plugin solves this by: Saving Hours of Manual Work – AI optimizes images in seconds Improving SEO Rankings – Search engines love properly optimized images Enhancing Accessibility – AI-generated alt text helps screen readers Smart Filename Management – SEO-friendly filenames with automatic URL updates across page builders Key Features AI-Powered Metadata Generation Generate SEO-friendly filenames automatically Create descriptive alt text (accessibility + SEO) Generate optimized image titles Extract relevant keywords Multiple AI Providers Google Gemini – Gemini 3.1 Flash-Lite, Gemini 3.5 Flash-Lite OpenAI – GPT-4.1 mini Anthropic Claude – Claude 4.5 Haiku Switch between providers anytime Use your own API keys (full control over costs) Or, on WordPress 7.0+, use WordPress AI Connectors (Settings → Connectors) — no plugin API key required Page Builder Integration Gutenberg – Full WordPress Block Editor support Elementor – Complete integration with automatic URL updates WPBakery – Seamless integration Visual Composer – Full compatibility Uncode – Full compatibility Divi – Full support across page content, Divi Library, and Theme Builder Automatic URL updates when renaming files No broken images after filename changes SEO Features Real-time SEO score calculation (0-100 scale) 6-component scoring algorithm (100 points total) Detailed score breakdown by field Visual indicators for optimization status Track optimization progress across your media library Smart Dashboard Visual media library overview See optimization status at a glance Filter by optimized/unoptimized images Search and sort capabilities Image usage tracking (where images are used) Usage Tracking & Analytics Monitor API usage by provider Track costs and requests Daily/monthly usage statistics Export usage data Visual charts and graphs Cost estimation tools 301 Redirect Protection Automatic 301 redirects when images are renamed Preserves SEO value — no broken links from search engines, social shares, or external sites Covers all image sizes (thumbnails, crops, originals) Smart redirect chain resolution (A→B→C becomes A→C) Hit tracking to monitor redirect usage Configurable expiry (6, 12, 24 months, or never) Zero impact on normal page loads — only activates for old image URLs Advanced Features 60+ Languages – Generate metadata in any supported language Changelog Tracking – Complete audit trail of all changes Inline Editing – Edit AI suggestions before saving Encrypted API Keys – Secure storage using WordPress salts Rate Limiting – Prevent excessive API usage Developer-Friendly REST API (infyp/v1) — optimize images and manage settings programmatically 38 action hooks for workflow integration 80 filter hooks for customization Clean, documented codebase WordPress Coding Standards compliant Extensible architecture Well-documented API How It Works Install & Activate – Quick installation from WordPress.org Add API Key – Add at least one AI provider API key Configure Settings – Choose your preferred AI model and language Optimize Images – Single-click optimization or bulk operations Monitor Results – Track SEO scores and usage statistics Perfect For Bloggers – Optimize featured images and content automatically Photographers – Proper image descriptions at scale Agencies – Manage multiple client sites efficiently Content Creators – Focus on content, not manual image optimization Anyone with Images – Every WordPress site needs image SEO What Makes Us Different Unlike basic image SEO plugins, Image SEO Optimizer: Actually “Sees” Images – AI vision models understand image content Natural Descriptions – Not keyword-stuffed robotic text Context-Aware – Understands your content and brand Multilingual Native – True multilingual support, not translations Smart URL Updates – Prevents broken images across page builders 301 Redirect Protection – Automatic redirects preserve SEO when renaming files Full Transparency – You own your API keys, control your costs Privacy & External Services This plugin connects to third-party AI services that you configure with your own API keys. Images are sent to these services for analysis and metadata generation: Google Gemini API * Service: Google AI image analysis * Privacy Policy: https://policies.google.com/privacy * Terms of Service: https://policies.google.com/terms * When used: When you select Gemini as your AI provider and optimize images OpenAI API * Service: OpenAI image analysis * Privacy Policy: https://openai.com/privacy * Terms of Service: https://openai.com/terms * When used: When you select OpenAI as your AI provider and optimize images Anthropic Claude API * Service: Anthropic Claude image analysis * Privacy Policy: https://www.anthropic.com/privacy * Terms of Service: https://www.anthropic.com/terms * When used: When you select Claude as your AI provider and optimize images Important Notes: * Images are ONLY sent to the service you configure * You use your own API keys (you control the relationship with the provider) * No automatic data collection by plugin authors * No tracking or analytics without your explicit consent * You can review each provider’s privacy policy before using their service Optional Newsletter & Telemetry (Opt-in Only) During the setup wizard, you can optionally subscribe to our newsletter. If you choose to opt in, we collect the following non-personal site information to help improve our plugin: Environment Data: * WordPress version, PHP version, MySQL version * Server software, memory limit * Site URL, locale, timezone * Multisite status, WP_DEBUG status Plugin & Theme Data: * Image SEO Optimizer plugin version * Active theme name and version * List of active plugins (names only) * Detection of common plugins (WooCommerce, Yoast, Rank Math, Elementor) Content Statistics: * Total media library count * Image count (images only) * Post, page, and product counts User Data (from your WordPress account): * Email address (for newsletter delivery) * Display name * WordPress user role This data is: * Only collected if you explicitly check the opt-in checkbox * Sent to: https://infypress.com/wp-json/ai-products/v1/newsletter/subscribe * Used to improve our plugin and send relevant updates * Never sold to third parties * You can unsubscribe at any time For more details, see our Privacy Policy. Google Search Console Integration This plugin includes an optional Google Search Console integration that connects to several Google services: Google OAuth 2.0 — Used to authorize access to your Google Search Console account. Endpoints: accounts.google.com, oauth2.googleapis.com Data sent: OAuth authorization codes and refresh tokens for token exchange When used: When you connect or reconnect to Google Search Console, and periodically to refresh access tokens Privacy Policy: https://policies.google.com/privacy Terms of Service: https://policies.google.com/terms Google Search Console API — Used to retrieve your site’s search performance data, URL inspection results, and sitemap information. Endpoints: googleapis.com/webmasters/v3, searchconsole.googleapis.com/v1 Data sent: OAuth access token, your site URL, date ranges, and URLs for inspection When used: When you view Search Console data within the plugin dashboard Privacy Policy: https://policies.google.com/privacy Terms of Service: https://policies.google.com/terms InfyPress OAuth Proxy — When using the “Quick Connect” method to connect Google Search Console, the authorization flow is routed through our proxy server. This proxy securely holds the Google OAuth client secret so it is never shipped in the plugin code. Endpoint: infypress.com/wp-json/ai-products/v1/gsc Data sent: Proxy authorization code, refresh token, and your site URL When used: Only when you use the “Quick Connect” method for Google Search Console (not when using custom credentials) Privacy Policy: https://infypress.com/privacy/ Developer Information Image SEO Optimizer provides 118 hooks (38 actions + 80 filters) for developers to extend its functionality. Below are the most commonly used hooks. For the complete reference, see our documentation: Actions Reference Filters Reference Key Hooks Filters: infyp_allowed_post_types – Filter which public post types are shown in the image list. Default: all public post types registered in WordPress. infyp_image_context – Add custom context to AI prompts (e.g. product data). Parameters: $prompt_addon, $image_id, $context_type. infyp_supported_mime_types – Filter supported image MIME types. Default: ['image/jpeg', 'image/png', 'image/webp', 'image/gif']. infyp_register_pagebuilder_adapters – Register additional page builder adapters. Parameters: $adapters. infyp_image_usage_post_ids – Find additional post IDs where an image is used. Parameters: $post_ids, $image_id, $image_url. infyp_table_columns_after_title – Add custom columns to the image list table. Parameters: $columns. Actions: infyp_after_image_upload – Fires after a new image is uploaded and processed. Parameters: $attachment_id, $metadata. infyp_filename_updated – Fires after filename URL references are updated across content. Parameters: $post_id, $url_map, $results. infyp_before_settings_cards / infyp_after_settings_cards – Add custom cards to the Settings page. Code Example // Customize which post types appear in the image filter add_filter( 'infyp_allowed_post_types', function( $types ) { // Remove a type you don't want unset( $types['custom_type'] ); return $types; } ); // Add custom context to AI prompts add_filter( 'infyp_image_context', function( $context, $image_id, $type ) { $parent_id = wp_get_post_parent_id( $image_id ); if ( $parent_id && get_post_type( $parent_id ) === 'portfolio' ) { $context .= "\nThis image is from a portfolio project."; } return $context; }, 10, 3 ); Requirements WordPress 6.1 or higher PHP 8.0 or higher MySQL 5.7 or higher At least one AI provider API key (OpenAI, Google Gemini, or Anthropic Claude) — or, on WordPress 7.0+, an AI connector configured under Settings → Connectors 128MB PHP memory limit recommended cURL or similar for API requests Support & Links Documentation WordPress Support Forum Feature Requests Report Bugs
