seo-drift

Track SEO regressions by capturing a baseline snapshot of critical on-page elements before deployment, then running a diff comparison after the deployment to detect changes to canonicals, schema, or noindex directives.

Monitoring technical SEO changes over time requires capturing historical snapshots of page elements and storing them in SQLite, allowing you to compare live pages against stored baselines to detect critical, warning, or informational changes.

SEO diff comparison works by fetching live page elements like structured data and headings, then comparing them against stored baseline snapshots to identify and classify any modifications, additions, or deletions that occurred between captures.

No external dependencies are required to capture Core Web Vitals baselines. The system uses SQLite-based storage for change tracking and implements secure URL fetching with built-in SSRF protection to safely capture page snapshots.

Detect silent changes to canonical tags and noindex directives by capturing a baseline snapshot of these critical SEO elements, then running an automated diff comparison to identify if they were accidentally modified during deployment cycles.

Use a baseline snapshot for SEO health monitoring before major site deployments, site migrations, or template updates to establish a reference point, ensuring you can immediately identify any unintended regressions to critical on-page elements.