Title: LinkSentinel – Internal Link and Broken Link Scanner Author: Pragmatic Bear Published: June 17, 2026 Last modified: June 17, 2026 --- Search plugins ![](https://ps.w.org/linksentinel/assets/icon-256x256.png?rev=3576031) # LinkSentinel – Internal Link and Broken Link Scanner By [Pragmatic Bear](https://profiles.wordpress.org/pragmaticbear/) [Download](https://downloads.wordpress.org/plugin/linksentinel.5.8.zip) * [Details](https://wordpress.org/plugins/linksentinel/#description) * [Reviews](https://wordpress.org/plugins/linksentinel/#reviews) * [Installation](https://wordpress.org/plugins/linksentinel/#installation) * [Development](https://wordpress.org/plugins/linksentinel/#developers) [Support](https://wordpress.org/support/plugin/linksentinel/) ## Description **LinkSentinel** keeps your site healthy by scanning internal links in your posts and pages. It detects redirects and broken destinations without following all hops blindly, letting you focus on what matters: * Auto-fixes links that are permanently redirected (HTTP 301/308) while leaving temporary redirects and broken links for review. * Runs scheduled scans (daily/twice daily/weekly) with timezone-aware cron control and live progress feedback. * Provides a full dashboard under **Tools → LinkSentinel** for resolved links, pending redirects, broken links, CSV export and settings. * Customizable Resolve All batching with cooldown controls keeps bulk fixes stable even on rate-limited hosts. ## Installation 1. Upload the `link-sentinel` folder to the `/wp-content/plugins/` directory, or install via the WordPress Plugins screen. 2. Activate the plugin through the ‘Plugins’ menu in WordPress. 3. Navigate to **Tools → LinkSentinel** and click **Scan Now** to scan existing content. Configure automatic scans in the Settings tab to run on your preferred schedule. ## FAQ ### Does this plugin scan external links? Not yet. The plugin currently focuses on internal links within your site’s domain. External link scanning is on the roadmap. ### What about images and media files? Currently only anchor (``) tags are scanned. Support for images (`` tags) and other media is planned for a future release. ### Can I disable automatic scans? Yes. Go to **Tools → LinkSentinel → Settings** and uncheck “Enable automatic scheduled scans”. You can also adjust the frequency and time to suit your needs. ## Reviews There are no reviews for this plugin. ## Contributors & Developers “LinkSentinel – Internal Link and Broken Link Scanner” is open source software. The following people have contributed to this plugin. Contributors * [ Pragmatic Bear ](https://profiles.wordpress.org/pragmaticbear/) [Translate “LinkSentinel – Internal Link and Broken Link Scanner” into your language.](https://translate.wordpress.org/projects/wp-plugins/linksentinel) ### Interested in development? [Browse the code](https://plugins.trac.wordpress.org/browser/linksentinel/), check out the [SVN repository](https://plugins.svn.wordpress.org/linksentinel/), or subscribe to the [development log](https://plugins.trac.wordpress.org/log/linksentinel/) by [RSS](https://plugins.trac.wordpress.org/log/linksentinel/?limit=100&mode=stop_on_copy&format=rss). ## Changelog #### 5.8 * **Naming**: Renamed all stored options, transients, the custom database table, cron events, AJAX/admin-post actions, nonces, and the localized admin script object to the unique `link_sentinel_` / `LinkSentinel` prefix. Existing installs begin with a fresh scan history; re-run a scan to repopulate. * **Developer**: Removed the legacy hook aliases retained in 5.6 — use the `link_sentinel_*` names. * **Compliance**: Removed runtime `error_reporting()` adjustments in the scanner. #### 5.7 * Renamed the plugin to “LinkSentinel – Internal Link and Broken Link Scanner” for a clearer, more descriptive listing. No functional changes. #### 5.6 * **Compliance**: Addressed WordPress Plugin Check findings — escaped remaining admin output, added translators comments and ordered i18n placeholders, and unslashed/ sanitized all request input. * **Developer**: Public hooks renamed to the `link_sentinel_*` prefix (e.g. `link_sentinel_follow_external_redirects`); legacy aliases were retained for back-compat (removed in 5.8). * **Developer**: Debug logging is now only written when `WP_DEBUG` is enabled. * Removed the manual `load_plugin_textdomain()` call; WordPress loads translations automatically. #### 5.5 * **Bug Fix**: Redirects to a different domain with an identical path are no longer misclassified as self-redirects; they are now logged for review. * **Bug Fix**: Starting a manual scan no longer resets a scan already in progress( e.g. one started by another admin). * **Bug Fix**: The Change Link form now accepts site-relative paths (e.g. `/about- us/`) in addition to full http(s) URLs. * **Stability**: The scan progress loop now stops with a clear message after repeated batch failures instead of retrying indefinitely. #### 5.4 * First public, open-source release under GPL-2.0-or-later. * Security: reviewed and hardened AJAX handlers and database queries. * Added a translation template (`languages/link-sentinel.pot`) and tidied translatable strings for full internationalization support. * Hardened files against direct access and improved inline documentation. #### 5.2.2 * **Critical Bug Fix**: Fixed race condition where manually fixed broken links would become “stuck” in the pending queue during subsequent scans. * **Improved Duplicate Detection**: Enhanced scanner logic to prevent re-logging manually resolved links regardless of resolution status. * **Database Efficiency**: Optimized duplicate detection queries for better performance. * **Stability**: Prevented infinite redirect loops with improved URL normalization. #### 5.0.1 * Batch processing for manual scans. * Auto-fix permanently redirected links (301/308). * Queue temporary redirects and broken links for review. * Scheduled scans with timezone-aware cron control. * Dashboard with progress indicators and CSV export. #### 4.6 – 2025-11-17 * Added: Resolve All batching controls in settings with checkbox gating, custom links-per-batch, and cooldown inputs to prevent rate limits. * Added: Shared preference helper so PHP and JavaScript stay in sync when honoring user pacing choices. * Improved: Resolve All localization, timers, and AJAX handler now respect saved batch/cooldown limits to avoid regressions. #### 4.4 – 2025-11-17 * Added: A throttled mode for hosts with strict rate limits — single-item batches, longer pacing, and tighter server-side throttles to prevent 429 errors. * Added: Resolve All diagnostics in the browser console for fast root-cause analysis. * Improved: Resolve All batching now self-tunes based on step durations and memory ceilings; logging hardened with safer output buffering. * Updated: Documentation and admin UI messaging for the throttled workflow and recommended troubleshooting steps. #### 3.5 – 2025-11-12 * Introduced timezone-aware scheduled scans with daily/twice daily/weekly frequency controls. * Added progress indicators, scan history, and concurrency protection between manual and scheduled runs. #### 1.9 – 2025-10-22 * Added “Resolved By” tracking for manual actions plus table wrapping fixes and accountability improvements. ## Meta * Version **5.8** * Last updated **6 hours ago** * Active installations **Fewer than 10** * WordPress version ** 5.8 or higher ** * Tested up to **7.0** * PHP version ** 7.4 or higher ** * Tags * [301](https://wordpress.org/plugins/tags/301/)[302](https://wordpress.org/plugins/tags/302/) [broken links](https://wordpress.org/plugins/tags/broken-links/)[links](https://wordpress.org/plugins/tags/links/) [redirects](https://wordpress.org/plugins/tags/redirects/) * [Advanced View](https://wordpress.org/plugins/linksentinel/advanced/) ## Ratings No reviews have been submitted yet. [Your review](https://wordpress.org/support/plugin/linksentinel/reviews/#new-post) [See all reviews](https://wordpress.org/support/plugin/linksentinel/reviews/) ## Contributors * [ Pragmatic Bear ](https://profiles.wordpress.org/pragmaticbear/) ## Support Got something to say? Need help? [View support forum](https://wordpress.org/support/plugin/linksentinel/)