Should I visit Droid Mod Apk site for Android Apps?
No. App piracy sites like this one are unsafe to download apps or games from. Usually the apps you're downloading have malware added to them, and sometimes they have only the malware and don't even contain the app they claim to.
We get so many questions on this site from people who install malware onto their own phones and then can't remove it: sometimes even a factory reset, deleting all the user data, is not enough.
Online security is mainly about thinking about motivation and trustworthiness. If this site really had access to all these paid apps and games, why would they run a high-traffic website - effectively paying for you to download them? If they didn't expect to get a big reward - by turning your phone into a botnet or stealing your data - why would they bother putting in all the SEO keywords? (SEO keywords are those repeated phrases you see on the site, like "APK OBB for Android download" on every link. Repeating the same phrase on every link isn't something an honest website does, because it makes the design worse, but dishonest websites do it to improve their Google rank.) Not having any contact information - or any clue about who operates the website - listed on the site is another red flag. Even the whois data - the official internet record of who owns and operates the site - is hidden behind a company in Panama.
Consider all those factors and then decide if you want to install software that you got from these people.