LinkSolva - Broken Link Checker

Local WordPress link verification with evidence-based classifications, URL deduplication, bounded scans, and conflict-aware repairs.

The plugin does not require a cloud account, developer service, telemetry, advertising, or link credits. It checks destinations from the WordPress server and stores findings in plugin-owned tables.

Scope

The current release covers public posts, pages, public custom post types, approved comments, custom navigation menu URLs, featured images, HTML links and images, plain-text HTTP(S) URLs, and optional read-only scalar metadata discovery.

It deliberately does not rewrite serialized page-builder structures. Direct edits are available only for standard post content, approved comments, and menu URLs, with an audit record and checksum-protected undo.

Status model

The scanner distinguishes successful responses, redirects, definitive 404/410 failures, automated-access blocks, rate limits, temporary server errors, TLS failures, DNS failures, timeouts, and uncertainty. A non-2xx response is not automatically a broken-link finding.

Development notes

The plugin uses WordPress HTTP APIs and the WordPress-bundled Requests library for parallel initial HEAD requests, with redirect following disabled. Each redirect target is normalized and validated before the next request. Requests are limited by timeout, redirect count, response size, and a serialized worker lock. Each HTTP timeout is capped to the remaining worker time budget; URLs left unchecked stay queued for the next request. URL verification runs in bounded parallel groups (configurable from one to eight requests), while source discovery waits for each discovered group to finish. Definitive 404/410 responses do not get a redundant GET, and network timeouts are recorded without repeating the same request immediately. Replacement repairs are verified before the old orphaned finding is retired, and undo restores the original resource mapping. The admin application uses plain JavaScript and scoped CSS loaded only on plugin screens.

WordPress.org media

The banners, icons, and four screenshots in wordpress-org-assets/ belong in the top-level /assets directory of the WordPress.org SVN repository, beside /trunk. The numbered screenshots match the four captions in readme.txt. These directory images are separate from the installable plugin ZIP.

License

GPLv2 or later. See the plugin header and GNU GPL.