Link check on ACM Digital Library results in 403

Hi, running link checks against the [ACM Digital Library](https://dl.acm.org/) results in 403 error. I am aware that this is due to the handling of requests on their end, so this issue is rather search for help than a bug report. Are there any known tricks to check such pages and avoid the 403? Running from my browser works fine. For reference the following example: ``` # htmlproofer --as-links https://dl.acm.org/doi/abs/10.1145/3629526.3645036 Running 1 check (LinkCheck) on ["https://dl.acm.org/doi/abs/10.1145/3629526.3645036"] ... Checking 1 external link For the Links > External check, the following failures were found: * External link https://dl.acm.org/doi/abs/10.1145/3629526.3645036 failed (status code 403) HTML-Proofer found 1 failure! ``` I tried changing the user agent to the one of browser, but still get the 403. ``` --typhoeus='{"verbose":true, "headers" : {"User-Agent": "Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/136.0.0.0 Safari/537.36"}}' ```