This time, Mueller said that implementing security headers does not affect search engine optimization (SEO) in any way. Other response security headers include 404, a response status code instructing the browser to return an error page, and 301, a permanent redirect from one URL to another. That’s because, while security headers don’t affect SEO, they do provide an additional layer of safety and privacy that protects your visitors. If you want to ensure the best user experience possible, implementing security headers is an excellent option. More SEO News You Can UseMost SEO Pros Are Not Impressed With Search Generative Experience – Poll: Can Google’s SGE search engine live up to the hype?