I have scanned Hentaihave.org with a number of website security resources, and it seems to be infected with malware. My antivirus also blocked a BitCoin miner malware attack.
"This webpage https://kdowqlpt.info/main.js is identified as infected with malware. Virus name: Application.BitCoinMiner.SX. The webpage has been successfully blocked by Antimalware filter and your PC is now safe."
Originally Posted: June 11, 2015
Virus total detection ratio: 1/66
Virustotal's anti-virus engine:
"Quttera" Detects this as a "Malicious site"
"Quttera" Now Detects this as a "Suspicious Site"
Hentaihaven.org is a good site to find high quality hentai, and obviously hentai is not for anyone under the age of 18 (including me, lol).
The site offers a variety of hentai to watch up to 1080p full hd quality with free downloads for your personal entertainment when you don't have internet or something.