DiagnoSEO – Fast and Automated On-page SEO vs SCwriter – AI SEO Content Generator & Blog Writer

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.

‼️ Important: This plugin is deprecated and no longer maintained. SCwriter supercharges your content creation, enabling easy production of high-quality, SEO-optimized articles while managing AI costs. Key Features ✅ Keyword-Driven Article Generation: Create content using primary keywords or custom titles. ✅ SERP Analysis: Analyze SERP data to enhance ranking with optimal keywords, content length, and entities. ✅ AI-Powered Keyword Analysis: Generate secondary and long-tail keywords to boost search visibility. ✅ Automated Post Creation: Automatically post on trending topics in your niche. ✅ SEO Titles & Descriptions: Create SEO-friendly titles and descriptions, auto-detecting existing SEO plugins. ✅ Outline Editor & Images: Create outlines and insert SEO-optimized images with ALT tags. ✅ Automatic Linking: Adds internal and external links using AI for improved connectivity. ✅ Readability & Post Structure: Enhance content readability and create dynamic post structures for variety. ✅ Localized Language Support: Write content adapted to your target language and location. 🔗 Links Website Support 📝 Presets Presets allow you to save and quickly apply custom settings for different articles with a single click. You can easily update any preset by clicking the save icon next to the preset name, ensuring your settings stay up-to-date for future posts. Article Length: Default: The AI analyzes the top 10 competitors on Google to determine the optimal article length, or you can choose a specific size or set a custom word count, with an average of 200 words per section. Topic: Enter the main subject or theme for your article. This defines the core focus and ensures all research, keywords, and outline sections stay relevant. Be specific for better results. Secondary Keywords: Enter any keywords or entities you want covered in the article, separated by commas or new lines. We will automatically assign them to the most relevant sections and seamlessly incorporate them. SERP Analysis: We will analyze the top 20 ranking pages to extract up to 75 topically relevant NLP entities, enhancing article comprehensiveness and ranking potential, though this may slightly increase AI costs and completion time. Preview Outline: When activated, an editable outline is generated before you start writing. You can easily reorder, delete, or add new sections to the outline, giving you full control over the structure before the article is created. Tone of Voice: Choose the tone of voice for your article by mixing popular options such as Analytical, Authoritative, Casual, Clear and Concise, Conversational, Empathetic, Encouraging, Energetic, Excited, Formal, Friendly, Honest, Humorous, Informative, Inspirational, Knowledgeable, Motivational, Persuasive, Playful, Professional, and Storytelling. Point of View: Select the narrative perspective (First, Second, or Third Person) to align your article’s tone and engage your audience effectively. Language: Choose the language in which you want your article to be written. Our platform supports all languages that OpenAI/Claude can generate, ensuring your content is delivered with high-quality and accuracy in your selected language. Country: Select the primary country for your target audience. This setting customizes the results for Real-Time Data, SEO Optimization, and article sections to align with local trends and preferences. Make sure the target keyword is relevant and localized to the selected country’s language. Use Real-Time Data: When enabled, we will collect data from search results to aid in crafting the article. Add Images: Automatically add an image after each H2 section with SEO-friendly ALT keywords. You can choose to insert simple gray placeholders or let Pexels pull in free, high-quality stock photos from pexels.com. External Links: Automatically insert relevant external links to enhance your content’s value and SEO. Stop Words for External Links: List words that, if found in external links, should prevent those links from being included in the content. Enter each word on a separate line. Internal Links: Boost your site’s internal linking structure by automatically linking to related posts within your blog. Include Introduction: Choose if you want to generate an introduction for your article automatically, ensuring a strong and engaging start. Extra Introduction Prompt: Enable an extra prompt for the introduction to guide the AI in creating a more tailored and engaging opening for your article. Table of Contents: Enhance navigation with an automatically generated table of contents, helping readers quickly find the information they need. Table of Contents CSS Class Name: Specify a CSS class to style the table of contents. Table of Contents Title: Provide a title for the table of contents section. Extra Title Prompt: Enable an extra prompt for the title to help the AI generate a more specific and compelling headline for your article. Extra Body Prompt: Enable an extra prompt for the body to guide the AI in crafting more detailed and targeted content within the main sections of your article. Include Conclusion: Choose if you want to generate a conclusion for your article, ensuring a cohesive and impactful ending. Extra Conclusion Prompt: Enable an extra prompt for the conclusion to help the AI create a more tailored and compelling closing for your article. Include Categories: Organize your content by reusing existing categories or creating new ones that fit your blog’s structure. Include Tags: Save time by reusing existing tags or creating new ones to categorize your posts effectively. Section Dividers: Improve readability by adding horizontal lines to clearly separate sections within your posts. This works when Add Images are deactivated. Keyword Emphasis and Highlight: Automatically emphasize main points with Secondary Keywords using tags and highlight Long-tail Keywords with tags (at least 3 words each). Primary Keywords are never emphasized to maintain natural reading flow. Global Prompt: Set a global prompt to guide the AI across the entire article, ensuring consistent tone, style, and content focus throughout. Stop Words: Specify words that should be ignored during content processing. Enter each word on a separate line. Improve Readability: When enabled, we will use simpler words, phrases, and shorter sentences to target an 8th-grade reading level. ⚙️ Blog Settings Customize the behavior of the AI with the following settings to tailor the SCwriter to your needs: Blog Topic: Enter the main topic or niche for the blog. This helps guide the AI in generating relevant content. 👥 Visibility Settings User Roles: Manage who can see and edit your posts with visibility settings based on WordPress user roles, ensuring the right people have access. 🧩 API Settings OpenAI API Key: Input your OpenAI API key. Where do I find my OpenAI API Key? Note: You must add funds to your OpenAI API account balance to use this service. Claude API Key: Input your Claude API key. Where do I find my Claude API Key? Note: You must add funds to your Claude API account balance to use this service. SCwriter API Key: Enter your API key for the SCwriter. Where do I find my SCwriter API Key? ✍🏼 Automatic Post Creation Settings Automatically schedule blog post creation at your desired frequency: hourly, daily, weekly, biweekly, or monthly. All posts will be generated as drafts, ready for your review. Author: Select the author for the automatically created blog posts. Trending Keywords: Enter a list of currently trending keywords, with each keyword on a new line. These keywords will be used to generate new blog posts. Frequency: Select how frequently you want the posts to be automatically created (hourly, daily, weekly, biweekly, or monthly). Preset: Select a preset to be used for automated article creation. ⚡️ Status Indicators Each post can have one of the following statuses: Queued: The post is currently being generated. The percentage of post-readiness is displayed to indicate progress. Completed: The post has been successfully generated. A “View” link is provided to access the post draft. Failed: The post-generation failed. The following errors may be displayed: Quota Exceeded: “You exceeded your current quota, please check your plan and billing details. For more information on this error, read the docs: OpenAI API Errors and Claude API Errors.” This error indicates that the OpenAI account lacks sufficient funds. Other Errors: These are related to issues with the post content. If you encounter other errors, please contact support. ‼️ Requirements OpenAI API Key or Claude API Key Prepaid OpenAI account or Prepaid Claude account SCwriter API Key