cur.lvは安全ですか？

This is just a redirector and URL shortener but the problem is it loads an ad page first and with adblock technology the user will not be able to get to the intended link. Ads for me have not been invasive. Just shady. Not dangerous. I wouldn't use it though.

As someone else mentioned, this is simply a URL redirect service that pays bitcoin to the site hosting the link. You can even opt-out of viewing the ad (usually at the top right) and go straight to the original link. I use CoinURL quite often linking to articles on my blog and on my blogs side panels.

As a user of this site, I can assure that it is not a scam, suspicious, or unethical. It is similar to adf.ly, only it pays in the cryptocurrency Bitcoin, and, like adf.ly, is PERFECTLY SAFE. While the site itself is safe, the links that have been shortened by other users may or may not be safe, which is something the owners cannot necessarily control. It should also be noted that the parent website of cur.lv, coinurl.com, is rated as a safe site her on Web of Trust.