Alphabet Inc.'s Google said on Thursday it was tackling unlawful discrimination by barring housing, employment and credit ads from being targeted to users based on their postal code, gender, age, parental status or marital status.

The new policy, which will go into effect by the end of the year, comes more than a year after the U.S. Department of Housing and Urban Development (HUD) sued Facebook Inc. for selling discriminatory housing ads and said that it was looking into similar concerns about Google and Twitter Inc.

Google and Facebook (FB) together account for just over half of internet ad sales globally, making their policy actions influential in the industry.

U.S. protests following the death of George Floyd, a black man, in Minneapolis police custody have placed a spotlight on racial inequities in the country, including the challenges black people face in finding jobs and housing. But Google said its new policy was not a reaction to the protests.

"We had been working constructively with HUD on these issues since last year, and our timeline has not been driven by current events," Google spokesperson Elijah Lawal said.

The housing department did not respond to request for comment. The status of its case against Facebook was not immediately clear.

Google (GOOGL) had previously barred advertisers from choosing whom to show ads to based on users' race, religion, ethnicity, or sexual orientation. But researchers investigating discrimination have said advertisers could still use other data to exclude lower-income individuals and racial minorities from their potential customer pool.

For example, ZIP codes, which refer to geography, could be a proxy for race as people of similar background sometimes cluster in neighborhoods.

Facebook banned advertisers from using ZIP codes, age and gender to decide who would see ads days before it was sued by the United States.