Insurance.com is closing its headquarters in Solon, Ohio and laying off 144 employees, the Cleveland Plain Dealer reported Thursday.

The news was revealed in a notice recently filed with the state. It said the company had signed an agreement to sell “substantially all of its assets to an outside purchaser on July 26.

The Plain-Dealer reports the company’s Web site now says Insurance.com is owned by QuinStreet Inc., a publicly traded online marketing and media company that paid $16 million last year to buy the web domain Insure.com.

Additionally, the state filing said the buyer “does not intend to continue operations at this facility” and that the closure “will result in the elimination of all positions and jobs at the facility.”

Affected positions will include computer programmers, web designers, accountants, administrative workers and top executives. The job cuts are slated to occur between Sept. 26 and July 2011.

Insurance.com allows customers to compare rates  from car and home insurance companies.