OpenPorte Spam Protection vs Yoast SEO – Advanced SEO with real-time guidance and built-in AI

OpenPorte is a free and open-source plugin that protects WordPress forms from spam using a lightweight Proof-of-Work challenge instead of CAPTCHAs. The goal is to make spam expensive for bots while keeping the experience almost invisible for legitimate visitors and respecting their privacy. For site owners, OpenPorte offers an easy to configure and deploy modern spam protection under their control. For the site users, it offers an accessible, transparent and privacy-friendly alternative to CAPTCHAs. OpenPorte is built around the open-source ALTCHA widget. Some highlights: CAPTCHA-free spam protection Fully open source (GPL) Self-hosted – no mandatory external service Designed to be accessible and privacy-friendly Compatible with existing ALTCHA integrations Easy migration for users of ALTCHA Spam Protection v1 (≤ 1.26.3) For the list of contributors, refer to our GitHub project: Contributors. AI-assisted development AI-assisted project. Architecture, security decisions, and final review are mine; AI tools (Claude, Mistral, and others) help with drafting code, tests, translations, and documentation — without them, one person couldn’t keep this fork alive. Background The original ALTCHA Spam Protection WordPress plugin (v1) was open source (GPLv2). Its authors have since released a version 2/3 which is no longer open source. They no longer maintain the open source project and recommend that users migrate to v2/v3. See the official project at https://altcha.org for their offering. OpenPorte started as a fork and continues the v1 line as free software (GPLv2 or later) for users who want to stay on a fully open-source, self-hosted solution. It is a faithful fork: existing v1 installations can switch to OpenPorte and keep their settings (see Upgrading). Compatibility OpenPorte is backward-compatible with ALTCHA Spam Protection v1 plugin: Your existing settings are migrated automatically on activation. The [altcha] shortcode keeps working (alongside the new [openporte]). The altcha_* filters and actions keep firing as deprecated aliases. Custom API Mode has been verified against GateCHA, an open source server implementing the creation and verification of ALTCHA challenges. See the Deprecations section for the full list of compatibility aliases and what they map to. Upgrading From the original ALTCHA v1 plugin Deactivate the old ALTCHA plugin, then install and activate OpenPorte. Your existing configuration is detected and copied into the OpenPorte settings on first activation; the original ALTCHA settings are left untouched, so you can roll back to ALTCHA v1 without losing anything. Do not run both plugins at the same time. From ALTCHA v2/v3 If your site was already moved to ALTCHA v2/v3 (for example by the automatic 3.0.0 update), your original v1 settings are normally still in the database: the v2/v3 upgrade neither migrates nor removes them. Deactivate ALTCHA, then install and activate OpenPorte — it finds and imports the v1 settings, even when the v1 plugin itself has long been deleted. Settings made in v2/v3 are not read. Deprecations The following ALTCHA-era identifiers are kept as aliases for backward compatibility and are scheduled for removal in a future release: The [altcha] shortcode — use [openporte]. The altcha/v1 REST namespace — use openporte/v1. The altcha_* filters and actions — now firing through WordPress’ deprecated hook mechanism; use the openporte_* equivalents. The AltchaPlugin class and the ALTCHA_VERSION / ALTCHA_WIDGET_VERSION constants — use OpenPortePlugin and the OPENPORTE_* constants. Integrations targeting paid-only third-party plugins; affected users should migrate to the official ALTCHA v2/v3 plugin. The “Custom HTML” integration (auto-configuration of hand-written tags) — place the [openporte] shortcode instead. You can re-enable it for now under Settings → OpenPorte → Integrations. Privacy No cookies, no tracking OpenPorte prioritizes user privacy by avoiding the use of cookies and fingerprinting techniques. No external service This plugin remains fully contained within your WordPress installation, eliminating any reliance on external services. Modes of Operation OpenPorte verifies submissions in one of two modes, selected in the settings (API Mode): Self-hosted (default) — a proof-of-work challenge is issued and verified by your own WordPress site through the REST API. Fully self-contained, with no external service and no additional setup beyond enabling the integrations you need. Custom — point the Challenge URL at your own ALTCHA-compatible backend (for example a self-hosted ALTCHA Sentinel, or GateCHA). Submissions are verified with your site’s shared secret. The paid altcha.org regional SaaS classifier offered by earlier versions has been removed; both remaining modes are free and self-hostable. REST API This plugin requires the WordPress REST API. If you are using any “Disable REST API” plugins, ensure that the endpoint /altcha/v1/challenge (marked for deprecation) and /openporte/v1/challenge are allowed. Supported Integrations CoBlocks Contact Form 7 Elementor Pro Forms (deprecated — paid plugin, see Deprecations) Formidable Forms Forminator GravityForms HTML Forms wpDiscuz WPForms WordPress Login, Register, Password reset WordPress Comments WooCommerce Many other plugins and your own content (via the [openporte] shortcode, or the deprecated [altcha] alias) Source Code All source code for the plugin, and the ALTCHA widget is available on GitHub. In the repository, you’ll also find versions of non-minified JavaScript and CSS assets: Plugin: https://github.com/openporte/openporte ALTCHA Widget: https://github.com/altcha-org/altcha

Real-time SEO guidance, schema, and AI built in. Help search engines and AI systems understand your content. All AI tools included, no hidden fees. Yoast SEO: the #1 WordPress SEO plugin Since 2008, Yoast SEO has helped site owners get their content found. More than 10 million websites now run it, from small local businesses to some of the most visited sites on the web. Our mission is SEO for everyone. You should not need a specialist, a big budget, or a technical background to give your content a fair chance of being discovered. Yoast SEO gives you everything you need to manage your on-site SEO. The Yoast SEO Premium plugin and its extensions unlock more advanced and AI-powered tools. Ready for search, and ready for AI People no longer only type queries into Google. They ask AI assistants, and those answers are built from content the AI has crawled, understood, and trusted. Yoast SEO helps you prepare for both. Schema.org structured data, so search engines and AI systems can understand what your content is actually about. Premium outputs significantly more schema types, including the E-E-A-T signals (experience, expertise, authoritativeness, and trustworthiness) that help AI systems understand who you are. Schema aggregation for NLWeb (Premium), which combines your site’s structured data into a single, deduplicated graph, so AI agents get a complete picture of your content in one request. Turn it on with a single toggle. LLMs.txt management, to guide how large language models interact with your content, including manual control over which pages are included. Bot blocker (Premium), to control which AI crawlers can use your content for training, including GPTBot, CCBot, and Google-Extended. Abilities API, so AI tools, dashboards, and automated workflows can read your SEO, readability, and inclusive language scores directly. Algorithm changes have been arriving for over 15 years, and Yoast has tracked every one of them. Keeping the plugin updated means you benefit from ongoing technical improvements, schema updates, and AI advancements automatically, all guided by our signature traffic light approach. Real-time guidance while you write SEO is one of the most consistent and cost-effective sources of website traffic, though it can be complex. Whether you are just starting out or you have done this for years, Yoast SEO tells you what to fix before you publish, not after. Red, orange, green. That is the whole idea. You get in-depth content and readability analysis that helps you create content designed to perform well in search, without needing to learn a new discipline first. Quick and easy setup Setting up Yoast SEO is quick and straightforward. No technical background required. Our step-by-step configuration wizard walks you through the essentials, so Yoast SEO can generate accurate structured data that helps search engines understand your site. Switching from another SEO plugin? Migration is seamless. You can import your existing SEO data and settings safely with our built-in import and export tools. AI tools built into your workflow Yoast’s AI tools come with Yoast SEO Premium, and they sit inside the editor you already use. There is no separate AI subscription, no extra login, and no credit top-up to buy. Every suggestion waits for your approval before anything saves. Yoast AI Generate: creates five SEO-friendly titles and meta descriptions instantly, with one-click regeneration for more options. Yoast AI Optimize: suggests improvements to keyphrase placement, including introduction, distribution, and density, with the option to apply or dismiss each edit. Yoast AI Summarize: generates a quick summary of your post to place anywhere in the block editor, so readers grasp the value fast. Yoast AI Content Planner (Premium): suggests five site-specific post ideas and builds a structured starter draft the moment you open a new post. Ideas are grounded in your own site, not generic topics, so your team never begins from a blank page. Bulk editor with AI drafts: review and fix titles, meta descriptions, and focus keyphrases across your whole site from one workspace, with search and status filters and a dedicated view per content type. The bulk editor is free. With Premium, select what needs work and AI drafts the metadata, including social sharing titles and descriptions, for you to approve. All AI tools included: no extra accounts, no separate credit purchase, no hidden costs. Content analysis and optimization SEO analysis to guide your keyword targeting, with up to 5 keyphrases in Premium and support for 20+ languages. Readability analysis for clear, engaging, user-friendly writing. Inclusive language analysis, so your content is more considerate and accessible. SERP previews for both desktop and mobile results. HowTo and FAQ blocks with built-in schema support. Breadcrumbs block for improved navigation. Semrush integration for keyword research directly inside Yoast SEO. Wincher integration to track keyword performance from your dashboard. Elementor integration for optimization inside your favorite builder. Technical SEO, handled for you Yoast SEO takes care of much of your site’s technical SEO automatically, which frees you to focus on your content. Automated meta tag optimization right out of the box. Canonical URLs to prevent duplicate content issues. Advanced XML sitemaps for clear site indexing. Deep Schema.org integration to improve how search engines and AI systems understand your site. Complete breadcrumb control for visitors and crawlers. Performance improvements that help reduce load times. Crawl settings to manage how bots access your site and reduce unnecessary server load. Every update delivers ongoing technical SEO enhancements automatically. Keep your website in perfect shape Whether you are a creator, a business owner, or a developer, Yoast SEO helps you maintain your site’s SEO health: Cornerstone content tools to organize and prioritize your key pages. Front-end SEO inspector to view and edit titles, descriptions, and schema live. SEO roles to delegate plugin access securely across your team. Regular 2-week update cycle, so you stay compatible with the latest SEO standards and search engine changes. Powerful integrations Yoast SEO works seamlessly with popular WordPress tools: Google Site Kit: access insights from Search Console, Analytics, and PageSpeed inside WordPress. Advanced Custom Fields (ACF): combine with ACF Content Analysis for Yoast SEO for advanced field optimization. Elementor: use full Yoast SEO functionality inside Elementor’s editor. Algolia: improve internal search accuracy and performance. Semrush: discover and optimize for high-value keywords. Wincher: track keyword positions and trends in Google Search. Jetpack: manage SEO and social previews in one place. Easy Digital Downloads (EDD): improve digital product visibility with integrated schema. Mastodon: verify your website on Mastodon with Yoast SEO Premium. WooCommerce: optimize ecommerce SEO with the dedicated WooCommerce extension. Yoast SEO Premium: AI-powered SEO for WordPress Yoast SEO Premium builds on everything above with advanced automation, AI tools, and professional support. It helps you optimize efficiently for both traditional search and AI-driven discovery. What it helps you tackle: Keeping pace with algorithm changes and AI search. Reaching the right audience. Automating redirects, crawl controls, and internal linking. Finding orphaned content and improving your site structure. Getting expert help when you need it. Premium highlights: AI-generated titles and meta descriptions, page by page or in bulk. AI Content Planner, so you never open a blank page. Smart internal linking suggestions to strengthen your site structure. Social previews for Facebook and X. Redirect manager with bulk tools, CSV import and export, and automatic prompts when you move or delete content. Bot blocker for AI crawlers, including GPTBot, CCBot, and Google-Extended. Schema aggregation for NLWeb, plus significantly more schema types than free. IndexNow integration, so search engines hear about your updates the moment you publish. Front-end SEO inspector for real-time editing. SEO workouts for orphaned and cornerstone content. Task list, unlocked in full, showing what to work on next with priority levels and time estimates. Google Docs add-on, so writers can run the full Yoast analysis before content ever reaches WordPress. One seat included. 24/7 premium support from SEO specialists. Included at no extra cost: Yoast Local SEO: help nearby customers find you, with local schema, a store locator, and opening hours management. Yoast Video SEO: help Google understand your videos, with video sitemaps and schema. Yoast News SEO: help your news content get discovered in Google News and Top Stories. Yoast WooCommerce SEO: advanced SEO for online stores Yoast WooCommerce SEO builds on Yoast SEO Premium with ecommerce-specific tools for your store’s visibility. Key ecommerce features: WooCommerce-specific XML sitemap that excludes non-shopping content. Product structured data for rich results, including price, reviews, and availability. Canonical URL management to prevent duplicates. Ecommerce-focused content analysis for GTINs, SKUs, and short descriptions. AI Generate for ecommerce: optimized titles and meta descriptions for product and category pages, at page level or drafted in bulk for products and categories. What that gets you: Better product visibility through automated structured data. More efficient crawling for large catalogs. Time saved through metadata templates and automation. Metadata across your whole catalog without editing rows one at a time. Built for WooCommerce, trusted by thousands of online stores worldwide. For developers Yoast SEO is built with developers in mind. With modern APIs, hooks, and a unified indexables system, you can extend or integrate SEO functionality across custom themes, plugins, or headless setups. REST API Retrieve SEO metadata for any post or URL, including meta tags, Open Graph, Twitter Cards, and Schema.org data. Learn more about the REST API. Surfaces API Access SEO data directly in code via YoastSEO()->meta->for_current_page(). Supports titles, descriptions, canonicals, and schema. Read the Surfaces API documentation. Metadata API Use the Metadata API to filter, override, or extend meta tags with WordPress hooks such as wpseo_title, wpseo_metadesc, and wpseo_canonical. Schema API The Schema API lets you modify or extend Schema.org graph pieces, including Article, Organization, Person, Breadcrumb, and WebPage entities. Abilities API integration Let AI tools, dashboards, and automated workflows read Yoast SEO data programmatically, including SEO, readability, and inclusive language scores for recent posts. Block editor compatibility Yoast SEO integrates directly with the WordPress block editor. It outputs schema for HowTo and FAQ blocks by default, and you can extend schema for custom blocks. Indexables At the core of Yoast SEO lies the indexables system, unifying all SEO data for faster queries and consistent metadata across outputs. Ongoing support and education Yoast is powered by expert developers, testers, and SEO specialists who keep improving the plugin. We are committed to helping you grow your SEO skills: Yoast SEO Academy: free and premium SEO courses, included in all paid plans. Yoast SEO blog, newsletter, and webinars. Yoast SEO Update podcast for the latest SEO insights. Bug reports on GitHub, for issue tracking rather than support. Yoast SEO: built to make search optimization accessible, reliable, and ready for the future of AI search.