While many sites have SSL certificates now, Ontweak.com has been flagged for inconsistent encryption or expired certificates. On a site where you download executables, missing HTTPS means a hacker on your local network could swap your download with a virus without you knowing.
If you are looking for game mods, cracked apps, or software tweaks, here is the breakdown of why caution is advised. is ontweakcom safe top
Example for ontweakcom (if real data were available): While many sites have SSL certificates now, Ontweak