Quick tutorial on how to limit asynchronous python connections when web scraping. This can reduce and balance out web scraping speed to avoid scraping pages too fast and blocking.
Response status code 503 generally means the service is unavailable. This could mean that the server can't handle the requests because of technical issues. In web scraping, this can also mean that server is refusing to serve web scrapers.
To avoid status code 503 when web scraping we should ensure that the server cannot identify the web scraper connections. For that refer to our how to scrape without being blocked guide which covers all of the ways to prevent web scrapers from being identified.