Function to check if URL exists

url_exists(x, non_2xx_return_value = FALSE, quiet = FALSE, ...)

Arguments

x	a single URL
non_2xx_return_value	what to do if the site exists but the HTTP status code is not in the `2xx` range. Default is to return `FALSE`.
quiet	if not `FALSE`, then every time the `non_2xx_return_value` condition arises a warning message will be displayed. Default is `FALSE`.
...	other params (`timeout()` would be a good one) passed directly to `httr::HEAD()` and/or `httr::GET()`

Value

return TRUE or FALSE

Examples

urls <- c('http://www.amazon.com', 'http://this.isafakelink.biz', 'https://stackoverflow.com')
base::sapply(urls,url_exists)
#>       http://www.amazon.com http://this.isafakelink.biz 
#>                        TRUE                       FALSE 
#>   https://stackoverflow.com 
#>                        TRUE