Interlink vs redCacti

Interlink is a WordPress plugin for auditing a site's internal links, finding orphaned posts, and suggesting relevant destinations. Its audit reports total links, orphaned and under-linked posts, well-linked posts, and recommended link counts. Suggestions wait for user approval before changes; when links are added, the plugin turns existing text into links rather than writing sentences, and inserted links can be undone. Optional rules map keywords to URLs, can be restricted by shared category or tag, and can run when a post is saved. SEO tools include anchor-text diversity reporting, cornerstone-content prioritization, and an editor meta box showing links and their status. Interlink also offers CSV export, weekly scans, role controls, and settings import and export. By default, analysis runs locally against the WordPress database without external requests or tracking. If AI relevance is enabled with the user's own API key, post titles and text and candidate titles go directly to OpenAI or Google Gemini. It is free and requires WordPress 5.5 or later and PHP 7.4 or later; it is tested up to WordPress 7.1.2.

redCacti is a web service for website health monitoring and SEO analysis. Its crawler finds broken internal and external links, orphan pages, and internal-linking gaps; it can also identify redirect chains and loops. Scheduled crawls can run daily, weekly, or monthly and follow robots.txt directives. Audits cover metadata, Open Graph and Twitter Card tags, Schema.org structured data, image alt text, and SSL certificates. For internal linking, the service suggests source and target pages, anchor text, similarity scores, impact labels, and context. Users can paste draft content for proposed link placements, but a team must review and add those links in its CMS. redCacti tracks health scores and crawl snapshots, and scheduled crawls can notify users of new issues. It says it works with any CMS, naming WordPress, Webflow, Shopify, custom stacks, and headless websites. The free plan is free for one website and up to 1,000 pages, with up to 30 results visible. Pro costs $19 a month billed monthly; Agency costs $39 a month billed monthly.