Find missing pages
Review URLs that return 404 and the pages that linked to them.
Website Audit Tool
Home / 404 Checker
Finding-specific pages
404 checker for missing website pages.
Find internal links and URLs returning 404 Not Found and decide whether to restore, redirect, or remove them.
✓Free during beta✓URL-level evidence✓Private history after signup✓Scheduled monitoring
What this check finds
This page focuses on 404 pages in crawl context. The crawler records the fetched URL, response status, discovery source when available, metadata, redirect outcome, and history signals that explain why a finding appears.
Use the check to review missing URLs discovered during the crawl. The goal is not just to report a problem, but to show the URL-level evidence needed to decide whether the issue is intentional, accidental, fixed, or still unresolved.
404 CheckerCompleted
Visited704
Indexable619
Errors20
Warnings8
FindingSeverityEvidence
404 not foundErrorBroken URL and source page
Related terminal statusesWarning403, 410, or other final status
Fixed linksInfoChange history
Why this check matters
Fix the source or target
Update the internal link, restore the page, or add a deliberate redirect.
Validate after cleanup
Run another crawl and confirm 404 findings are resolved.
How to fix and verify it
- Run a focused crawl. Start with the affected website or section and keep settings consistent for follow-up comparisons.
- Inspect the evidence. Review affected URLs, source pages, HTTP statuses, metadata values, and crawl lineage before making changes.
- Apply the smallest safe fix. Update the page, template, route, redirect rule, canonical tag, or internal link that caused the finding.
- Rerun the audit. Confirm that the finding is resolved and did not create a new issue elsewhere.
When to monitor it
Small technical issues become expensive when they remain invisible. For 404 pages, a repeatable crawl helps distinguish a one-time anomaly from a persistent problem caused by templates, redirects, routes, metadata, or content changes.
Start with the concrete evidence: affected URL, source page, HTTP status, metadata value, redirect target, or comparison row. After the fix is made, run another crawl with comparable settings to confirm the finding is resolved.
Frequently asked questions
What does this page check?
It checks missing URLs discovered during the crawl and presents the result as summary counts plus URL-level evidence. That makes the audit useful for deciding what to fix and for verifying the result in a later crawl.
Will the audit start immediately after I enter a URL?
No. The URL is transferred to the crawler seed field so you can review scope, limits, redirects, and sitemap policy before starting.
Can this be monitored over time?
Yes. Registered users can create scheduled audits and review whether findings are new, resolved, or still unresolved across completed crawls.
Is this only for SEO?
No. The same findings are useful for site maintenance, release validation, migration checks, and general quality assurance.
Related audit pages
Run a free audit and find 404 pages.
Enter a website URL and inspect 404 pages with URL-level evidence in the live crawler.