Title: HTTP error (proxy): cURL error 5
Last modified: May 12, 2026

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# HTTP error (proxy): cURL error 5

 *  Resolved [masvil](https://wordpress.org/support/users/masvil/)
 * (@masvil)
 * [2 days, 11 hours ago](https://wordpress.org/support/topic/http-error-proxy-curl-error-5/)
 * Just configured the plugin. My logs are only made of lines like these:
 * [2026-05-12 06:35:55] Warming: [https://example.com/page/](https://example.com/page/)
   via {“download_token”:[{“message”
   [2026-05-12 06:35:55] HTTP error (proxy): cURL
   error 5: Unsupported proxy syntax in ‘{“download_token”:[{“message”‘: Port number
   was not a decimal number between 0 and 65535
 * If `Proxy List URL` shield is blank, it works (only with the closest Cloudflare
   proxy, of course).
 * Tried to switch between Backbone and Direct, no difference.
 * Anyway, in the Websher dashboard there is no correspondence with the step “Choose
   the ip:port:username:password authentication format” step mentioned on [https://wpfixfast.com/blog/preload-cloudflare-cache/#how-to-register-and-use-webshare-proxies](https://wpfixfast.com/blog/preload-cloudflare-cache/#how-to-register-and-use-webshare-proxies)
 * Server: LiteSpeed Enterprise
    -  This topic was modified 2 days, 10 hours ago by [masvil](https://wordpress.org/support/users/masvil/).
      Reason: Added server type

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Plugin Author [Ozgur Sar](https://wordpress.org/support/users/ozgursar/)
 * (@ozgursar)
 * [2 days, 10 hours ago](https://wordpress.org/support/topic/http-error-proxy-curl-error-5/#post-18905446)
 * Hi [@masvil](https://wordpress.org/support/users/masvil/) , thanks for using 
   our plugin.
 * As per your message below: 
   – If `Proxy List URL` shield is blank, it works (
   only with the closest Cloudflare proxy, of course).It appears that there is a
   problem with your Webshare proxy URL. When you access that URL from your browser
   it needs to automatically download a text file containing your backbone proxy
   list having proxies such as:
 * `p.webshare.io:80:username:password\``
 * Ensure you can access the proxy list and then use the correct **Proxy List URL**
   in the plugin settings. Then your Cloudflare Worker should be able to preload
   each page through your proxies.
 *  Thread Starter [masvil](https://wordpress.org/support/users/masvil/)
 * (@masvil)
 * [2 days, 9 hours ago](https://wordpress.org/support/topic/http-error-proxy-curl-error-5/#post-18905499)
 * Hi [@ozgursar](https://wordpress.org/support/users/ozgursar/) , thanks for your
   support.
 * I followed your steps and verified that Webshare proxy URL was invalid (no download).
   No idea why, since I just used the copy button on Webshare dashboard. I fixed
   by resetting the download link on Webshare dashboard.
 * 5 stars support for a 5 stars plugin. Review is coming. Meanwhile, some reports:
 * On [https://wpfixfast.com/blog/preload-cloudflare-cache/#how-to-create-and-deploy-a-cloudflare-worker](https://wpfixfast.com/blog/preload-cloudflare-cache/#how-to-create-and-deploy-a-cloudflare-worker)
   you should update screenshots (yes, Cloudflare dashboard changes everyday) and
   replace the following:
   – “Compute (Workers)” with “Compute”– “Click Create” with“
   Click Create application”On [https://wpfixfast.com/blog/preload-cloudflare-cache/#how-to-register-and-use-webshare-proxies](https://wpfixfast.com/blog/preload-cloudflare-cache/#how-to-register-and-use-webshare-proxies)
   the “Click Generate Proxy List” step is not required (anymore), since the proxy
   list is already generated on the dashboard’s 1st loading.
 *  Plugin Author [Ozgur Sar](https://wordpress.org/support/users/ozgursar/)
 * (@ozgursar)
 * [2 days, 3 hours ago](https://wordpress.org/support/topic/http-error-proxy-curl-error-5/#post-18905986)
 * Hi [@masvil](https://wordpress.org/support/users/masvil/) ,
 * Thanks for pointing these out.
 * I will update the screenshots accordingly.
 *  Plugin Author [Ozgur Sar](https://wordpress.org/support/users/ozgursar/)
 * (@ozgursar)
 * [2 days, 1 hour ago](https://wordpress.org/support/topic/http-error-proxy-curl-error-5/#post-18906195)
 * Screenshots, how to guide text and “Donate to this plugin” link updated.
 * Thanks again for your feedback [@masvil](https://wordpress.org/support/users/masvil/)
 *  Thread Starter [masvil](https://wordpress.org/support/users/masvil/)
 * (@masvil)
 * [1 day, 12 hours ago](https://wordpress.org/support/topic/http-error-proxy-curl-error-5/#post-18906550)
 * So quick! 🙂

Viewing 5 replies - 1 through 5 (of 5 total)

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## Tags

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 * [proxy](https://wordpress.org/support/topic-tag/proxy/)

 * 5 replies
 * 2 participants
 * Last reply from: [masvil](https://wordpress.org/support/users/masvil/)
 * Last activity: [1 day, 12 hours ago](https://wordpress.org/support/topic/http-error-proxy-curl-error-5/#post-18906550)
 * Status: resolved