HTTP Status Code Explainer - Guide to 301, 404, 500 Codes Online
Understand and audit the direct indexing and link authority impact of HTTP response codes (200, 301, 302, 404, 410, 503). Prevent search index drops, maintain crawl budgets, and manage link equity.
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How to use HTTP Status SEO Advisor Online
Step 1: Select any server HTTP response code from the interactive selection list.
Step 2: Inspect the precise impact on crawler indexing, search visibility, and link power transfer.
What is the primary SEO difference between 301 and 302 redirects?
A 301 is a permanent redirect that passes 95%+ of backlink authority (link juice) to the new page. A 302 is temporary, preserves the old index, and does not pass ranking power.
How does a 410 Gone status differ from a 404 Not Found error?
A 404 signals an asset is missing, but crawlers may re-test it. A 410 declares the asset is permanently removed, triggering immediate and permanent exclusion from search indexes.
Why should I use a 503 status code during server maintenance?
Serving a 503 status code tells crawlers your server is temporarily offline, instructing them to return later and preventing them from indexing error pages or de-indexing your site.