No response

Error severity, in the Response codes tab

Why it matters

The server did not answer (timeout, DNS or connection failure). Search engines cannot index what they cannot fetch.

How to fix it

Check the URL resolves, the server is up, and firewalls or rate limits are not blocking crawlers.

How Crawlune finds it

Crawlune flags No response automatically on every crawl and lists the affected URLs under the Response codes tab, where you can filter, inspect each page and export the list to CSV. The free version crawls up to 550 URLs with every check enabled.