Why are my submitted URLs returning 429?

A 429 code means that IndexNow is limiting incoming requests (“Too Many Requests”). This code concerns the URL submission; it is not the HTTP code returned by your shop page.

In the module’s Security key tab, reduce the global daily send limit and save. Avoid repeated manual resubmissions and space out further attempts. If your host or support identifies a Retry-After header, wait for the specified time.

The exact thresholds depend on the search engine and are not public. If the issue persists, send support the affected URLs, dates and response codes so that the cause can be investigated.

Sources: IndexNow: limits and troubleshooting.