Hello there @Mystogan007 and thanks for your interest in Crawlee! An HTTP 503 should get retried automatically, and that's pretty much all that you can do, as 503 means the service is temporarily unavailable.

Of course, there is a chance that the service detected that you're scraping it and blocked you (by returning a 503 to throw you off 🤷). In that case, you might want to read https://crawlee.dev/python/docs/guides/avoid-blocking