How to remove datalloading.net?
1. Use Malwarebytes Anti-Malware for Mac to remove adware, if any..
https://www.malwarebytes.org/antimalware/mac/
Download, install , open, and run it by clicking “Scan for Adware” button to remove adware.
Once done, quit Malwarebytes Anti-Malware.
2. Disable Extensions and test.
Safari > Preferences > Extensions
Select and disable all extensions and test.
Uninstall all extensions you not installed knowingly.
To uninstall any extension, select it and click the “Uninstall” button.
3. Safari > Preferences > Search > Search engine:
Select your preferred search engine.
4. Visit the site you want it to be the Home page
Safari > Preferences > General > Homepage
Click the button “Set to Current Page” button.
5. Restart the Mac.