Title: RankVN SEO Author: Rankvn1988 Published: July 15, 2026 Last modified: September 26, 2026 --- Search plugins ![](https://ps.w.org/rankvn-seo/assets/banner-772x250.png?rev=3608200) ![](https://ps.w.org/rankvn-seo/assets/icon-256x256.png?rev=3608200) # RankVN SEO By [Rankvn1988](https://profiles.wordpress.org/tonyhoang1988/) [Download](https://downloads.wordpress.org/plugin/rankvn-seo.4.3.1.zip) * [Details](https://vec.wordpress.org/plugins/rankvn-seo/#description) * [Reviews](https://vec.wordpress.org/plugins/rankvn-seo/#reviews) * [Installation](https://vec.wordpress.org/plugins/rankvn-seo/#installation) * [Development](https://vec.wordpress.org/plugins/rankvn-seo/#developers) [Support](https://wordpress.org/support/plugin/rankvn-seo/) ## Description RankVN SEO is a lightweight technical SEO plugin for WordPress with strong **Vietnamese- language** support (accent-aware processing, Vietnamese keyword analysis, and a bundled Vietnamese translation). It helps search engines and AI crawlers understand your site: **unified JSON-LD Schema**, **XML/HTML sitemaps**, **meta & social tags**, **image SEO**, and an optional** llms.txt** file. The Free build runs on your server — no remote licensing calls and no telemetry without your consent. ### What you get in Free * **Meta title & description** — customize Google snippets for posts, pages, and the homepage. * **Open Graph & Twitter Cards** — richer social previews with safe image handling. * **Unified Schema Graph** — one connected JSON-LD block (WebSite, WebPage, Article, Author, BreadcrumbList) plus many manual types you can add in the editor (FAQ, HowTo, Product, Course, LocalBusiness, Recipe, Event, and more). * **XML & HTML sitemaps** — search-engine XML sitemaps and a customizable HTML sitemap. When RankVN XML sitemaps are on, the default WordPress sitemap is turned off to avoid duplicates. * **Robots.txt & robots meta** — virtual robots.txt plus noindex / nofollow / noarchive per page. * **Canonical URLs** — reduce duplicate-content issues. * **Table of contents** — heading-based TOC via shortcode. * **Reader rating widget** — visitor ratings with AggregateRating schema (no IP storage). * **Image SEO (Alt + Optimize)** — suggest/save alt text, optional safe rename, WebP/AVIF variants for faster pages, and Media Health reports. * **Featured vs in-content images** — if the same file is both the featured image and used in the post, Save / Optimize keeps the original and creates two separate copies so each slot can have its own file and URL. * **llms.txt** — a plain-text map of your site for AI crawlers (optional). * **Per-module Features toggles** — turn features on/off; matching settings tabs show or hide with them. RankVN SEO Free does not include licensing or AI clients and does not contact a RankVN server. Optional AI features live in RankVN SEO Pro. ### External Services This plugin can connect to the following third-party services. All of them are OPT- IN — nothing is contacted until you explicitly enable/configure it in the plugin settings. #### IndexNow Used to notify search engines (Bing, Yandex, and others) that a URL was added or updated, so they recrawl it faster. When enabled, on publish/update the plugin sends the changed URL and your site’s IndexNow key to https://api.indexnow.org. No visitor or personal data is sent. Protocol/terms: https://www.indexnow.org/ · Bing privacy: https://privacy.microsoft.com/privacystatement #### Google Tag Manager (GTM) Optional. Loaded only if you enter a GTM container ID. The plugin outputs Google’s GTM loader (https://www.googletagmanager.com) so tags you configure in your own GTM account run on your site. Data sent is defined by your GTM configuration. Terms: https://marketingplatform.google.com/about/analytics/tag-manager/use-policy/ · Privacy: https://policies.google.com/privacy #### Google Analytics 4 (GA4) Optional. Loaded only if you enter a GA4 Measurement ID. The plugin outputs Google’s gtag.js loader (https://www.googletagmanager.com/gtag/js) to send visitor analytics to your GA4 property. Terms: https://marketingplatform.google.com/about/analytics/ terms/us/ · Privacy: https://policies.google.com/privacy #### Microsoft Clarity Optional. Loaded only if you enter a Clarity project ID. The plugin outputs the Clarity loader (https://www.clarity.ms) to send session/heatmap analytics to your Clarity project. Terms: https://clarity.microsoft.com/terms · Privacy: https:// privacy.microsoft.com/privacystatement Note: the SEO analysis feature may fetch pages on your own website (same domain) to read their rendered HTML; no data is sent to any third party. The Free version does not include any licensing or AI client and never contacts a RankVN server; all AI features are part of RankVN SEO Pro only. ### Privacy RankVN SEO Free does not send your site data externally by default. * IndexNow: only active if you enter an IndexNow key; sends the submitted public URL plus the key (see External services). * Google Tag Manager / Google Analytics 4 / Microsoft Clarity: tracking snippets are only rendered if you explicitly enable them and enter the corresponding ID; data is then collected by those third parties from visitors’ browsers. * Reader Ratings: stores total vote counts and rating averages in local WordPress post metadata only. No visitor IP addresses, browser cookies, or personal tracking tokens are collected. * The Free version does not contact a RankVN server; licensing and AI features are Pro-only. ## Installation 1. Upload the `rankvn-seo` folder to `/wp-content/plugins/`, or install the ZIP from Plugins Add New. 2. Activate the plugin. 3. The Activation Guard checks PHP 7.4+ and WordPress 6.0+. If requirements are not met, the plugin deactivates with a clear notice. ## FAQ ### Does RankVN SEO Free require a license? No. Free Core works fully without connecting to any external RankVN service. ### Does Free use AI credits? No. Free SEO tools run locally with standard rules. AI suggestions and credit workflows are Pro-only. ### Does Free contact a RankVN server? No. The Free build does not ship the licensing or AI client, so it never contacts RankVN servers. ### Does the Reader Rating widget store IP addresses? No. Only aggregated counts and averages are stored in your database. No visitor IPs or tracking cookies. ### Is the plugin built for Vietnamese sites? Yes. Accent-aware processing, Vietnamese keyword analysis, and a full Vietnamese admin translation are included. Source strings are English for WordPress.org. ### Which Schema types are available in Free? Core graph types (WebSite, WebPage, Article / BlogPosting / NewsArticle, BreadcrumbList, AggregateRating) plus many manual types you can add in the editor — including FAQPage, HowTo, Product, Course, LocalBusiness, Recipe, Event, Review, VideoObject, JobPosting, SoftwareApplication, and more (see the Schema picker in the post editor). ### What does “Re-optimize (N variants)” mean on an image? Those “variants” are optimized copies on disk (for example different sizes / WebP) used to serve the image faster. They are **not** new items in the Media Library. Library copies are only created when the plugin clones or splits an image for a specific use (for example featured vs in-content, or clone-per-post). ### What is llms.txt? A simple text file that summarizes your site structure so large language models and AI crawlers can read it more easily. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “RankVN SEO” is open source software. The following people have contributed to this plugin. Contributors * [ Rankvn1988 ](https://profiles.wordpress.org/tonyhoang1988/) [Translate “RankVN SEO” into your language.](https://translate.wordpress.org/projects/wp-plugins/rankvn-seo) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/rankvn-seo/), check out the [SVN repository](https://plugins.svn.wordpress.org/rankvn-seo/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/rankvn-seo/) by [RSS](https://plugins.trac.wordpress.org/log/rankvn-seo/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 4.3.1 * Image SEO: when the same attachment is both the featured image and used in the post content, Save or Optimize keeps the original file and creates two separate copies (featured + in-content) with their own URLs — so Media Library shows the original plus two usage copies. * Clearer on-screen note after that split: reload the editor before clicking Update. * Clarified in this readme what “variants” means (on-disk WebP/size files, not Media Library duplicates). * Simple-mode XML sitemap includes category archives. * Schema editor: the popup stays open on save and restore, its height stays stable, the WebPage/None view is clearer, an empty Article placeholder is hidden when a real Article exists, and the LocalBusiness address warning is hidden for Person. * A module’s settings tabs stay hidden while that module is off. * Dashboard counts refresh right after a save or an alt change. * Vietnamese translation: 114 additional approved strings. * SEO Project Board save applies only to its own task post type. * New installs create the 404 log and redirect tables on activation. Upgrades that already have those tables are unchanged. * Image clone lookup no longer scans the whole Media Library for orphan copies. Clones stay tied to the post; orphans remain a Media Health item. #### 4.3.0 * Shared helpers for SEO title, description, image and canonical on posts and terms. * Term archives use the same editor shell as posts, including social tags and robots meta. * When the RankVN XML sitemap is enabled, the default WordPress sitemap is turned off. * Image SEO settings open the Image Hub (no broken settings links). #### 4.2.4 * Code cleanup: removed 14 AI/Pro feature scripts from the Free build (moved to the Pro add-on) and added a build guard to prevent regressions. No change to Free behavior. #### 4.2.3 * Hardening: escaped the table-of-contents toggle label, validated the settings tab against a strict allow-list before saving, and hardened all JSON-LD output against script-tag breakout. #### 4.2.2 * Hardening: escaping, nonce/capability checks, and input sanitization reviewed across admin screens and schema output for the WordPress.org guideline review. #### 4.2.1 * All 18 schema types (Product, Recipe, Event, LocalBusiness, Review, VideoObject, JobPosting, Course, SoftwareApplication and more) are now available in Free — add, edit and output JSON-LD with no locks. * Improved schema type picker layout so type names and descriptions wrap cleanly. * Fixed: the welcome modal no longer re-opens on top of the Setup Guide page. * Fixed: the SEO score column no longer collapses on post lists with many columns( e.g. WooCommerce products). #### 4.1.1 * Compliance: removed “coming soon” placeholders from the Free admin UI (editor panel and Features page). * Renamed the editor “E-E-A-T” tab to “AI Disclosure” to reflect its actual scope. #### 4.1.0 * Image Optimizer: explicit WebP and AVIF toggles that generate next-gen variants only for the formats your server supports (locked with a note when unavailable). * Media Library & Editor: per-image “Optimize this image” and “Suggest & save Alt” buttons that act on a single image on demand. * Alt suggestions: choose the source text — nearest heading (default), the post title/H1, or the first H2. * Media Health: new “reused images” report showing images embedded in two or more posts, plus a configurable heavy-image threshold (MB) and quick hand-off buttons to fix alt or optimize. * Clone per post: when an image is reused across posts, clone a separate copy for one post so renaming or optimizing it never affects the others. * Optional rename-by-alt: when saving an alt suggestion, safely rename the file to match — only when the image is not used by other posts. * All image features run locally in PHP with no external requests. #### 4.0.0 * First public release on WordPress.org. * Free edition delivers complete technical SEO with no external server: unified JSON-LD schema graphs, XML sitemaps (posts, pages, news, video, HTML), meta tags& Open Graph, robots.txt & robots meta, canonical, breadcrumbs, table of contents, reader ratings, image alt optimization, redirects, 404 monitor, and llms.txt. * Per-module Features toggles: enable/disable each feature independently, with settings tabs shown/hidden to match and a fully clean disable (no leftover hooks, menus, metaboxes, assets, or cron). * Standards compliance: all admin/editor CSS and JavaScript are properly enqueued( no inline blocks); source strings are English with a bundled Vietnamese translation. * The licensing and AI client are not part of the Free build; the Free version never contacts any RankVN server. AI features are available in RankVN SEO Pro. ## Meta * Version **4.3.1** * Last updated **1 day ago** * Active installations **Fewer than 10** * WordPress version ** 6.0 or higher ** * Tested up to **7.1.2** * PHP version ** 7.4 or higher ** * Language * [English (US)](https://wordpress.org/plugins/rankvn-seo/) * Tags * [open graph](https://vec.wordpress.org/plugins/tags/open-graph/)[schema](https://vec.wordpress.org/plugins/tags/schema/) [seo](https://vec.wordpress.org/plugins/tags/seo/)[sitemap](https://vec.wordpress.org/plugins/tags/sitemap/) [vietnamese](https://vec.wordpress.org/plugins/tags/vietnamese/) * [Advanced View](https://vec.wordpress.org/plugins/rankvn-seo/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/rankvn-seo/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/rankvn-seo/reviews/) ## Contributors * [ Rankvn1988 ](https://profiles.wordpress.org/tonyhoang1988/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/rankvn-seo/)