Shortcodes Ultimate – Content Elements vs OpenPorte Spam Protection

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

Building new pages with Gutenberg? Explore VovaBlocks, a focused collection of native marketing and content blocks from the creator of Shortcodes Ultimate. View VovaBlocks → About Shortcodes Ultimate Shortcodes Ultimate is a WordPress shortcode plugin for adding tabs, accordions, buttons, FAQs, sliders, carousels, lightboxes, columns, boxes and other reusable content elements without coding. It is ideal for site owners who want richer content layouts and practical UI elements without switching to a full page builder. Use Shortcodes Ultimate in the Block Editor, Classic Editor, widgets and template files. Generate shortcodes visually, preview the result before inserting it, and reuse the same elements across posts, pages and existing shortcode-based content. Trusted by hundreds of thousands of WordPress sites, Shortcodes Ultimate helps you replace multiple single-purpose UI plugins with one maintained toolkit. Explore live examples What you can build With Shortcodes Ultimate, you can quickly add common WordPress content elements such as: Accordions and FAQ sections Responsive tabs CTA buttons and download buttons Boxes, notes and callouts Columns and layout helpers Sliders and carousels Lightboxes for images and custom content Post lists and dynamic content blocks Spoilers, toggles and expandable content Media embeds and visual content blocks Instead of installing a separate plugin for every small content element, Shortcodes Ultimate gives you one maintained toolkit for everyday WordPress content tasks. Works with modern and classic WordPress workflows Shortcodes Ultimate works with the Block Editor, Classic Editor, widgets and template files. You can insert shortcodes manually, use WordPress shortcode blocks or use the built-in shortcode generator to configure elements visually. This makes the plugin useful for: Site owners who want to improve content without coding Bloggers and affiliate publishers who need reusable CTA and content blocks Agencies and freelancers maintaining multiple WordPress sites Developers who want shortcode-friendly output in templates Existing sites with older content that already uses shortcodes Why use Shortcodes Ultimate? 50+ ready-to-use WordPress shortcodes Visual shortcode generator Live preview Works with the Block Editor and Classic Editor Shortcodes can be used in posts, pages, widgets and template files Responsive elements that work with your theme Built-in Custom CSS editor Developer-friendly hooks and documentation Free version available on WordPress.org Pro version available for advanced shortcodes, extra styles and premium support Why shortcodes still matter in WordPress The WordPress Block Editor is great for visual content editing, but shortcodes are still useful when you need portable, reusable content elements that work across different parts of a WordPress site. Shortcodes are especially helpful when you want to: Reuse the same content element in many posts or pages Add dynamic content inside widgets or templates Maintain older WordPress sites that already use shortcodes Work across Classic Editor and Block Editor workflows Add content elements without switching to a full page builder Keep common UI elements available through a simple text-based syntax Shortcodes Ultimate is designed for these practical workflows. It gives you a large collection of ready-made shortcodes and a visual generator, so you do not need to write shortcode syntax manually unless you want to. Free and Pro The free version of Shortcodes Ultimate includes a large collection of useful shortcodes for everyday WordPress content tasks. Shortcodes Ultimate Pro adds advanced shortcodes, additional styles, Content Slider, Pricing Table, Testimonials, Shortcode Creator, Elementor support and premium support. Compare Free and Pro Useful links Documentation Live Examples Pro features Support