Seekfreeonline.com stands for a browser-hijacking extension designed specifically for the Google Chrome browser. Seekfreeonline.com changes the default search engine without the user's approval. Don't tolerate it! Get rid of this hijacker with Combo Cleaner Antivirus via the official page -
https://www.combocleaner.com or, optionally, follow the manual recommendations provided in the video.
Detailed removal guide is here -
https://www.pcrisk.com/removal-guides/26522-seekfreeonline-com-redirect