Check if a url exists with httr
url_exists(url, non_2xx_return_value = FALSE, quiet = TRUE, timeout_thres = 10)A URL to check
what to do if the site exists but the
HTTP status code is not in the 2xx range. Default is to return TRUE.
if not FALSE, then every time the non_2xx_return_value condition
arises a warning message will be displayed. Default is TRUE.
timeout in seconds for httr attempt
A boolean value to indicate whether a website is reachable