If your own, getting on a allow/whitelist is the fix and usually the CDN is doing the blocking. If it's a competitor and just a few URLs I like to have Google get the information I need from those URLs
Keep in mind that you might be in some legal trouble if the website is not your own and they actively blocking your IP or user-agent. At least be gentle.
haha yea, not worth heavy lifts or legal trouble- just a interesting scenario that I ran i've run into and figured you guys know work arounds. You guys are smart, thank you
If you want a poor person's crawl you might be able to 301 redirect to a full copy of their site from your site and then submit an XML sitemap on some weird subdomain for your project