Should i use meta keywords?

No, you generally shouldn't bother using meta keywords for SEO purposes, since Google publicly confirmed back in 2009 that it completely disregards the meta keywords tag when determining search rankings, and Bing and other major search engines have similarly stated they either ignore it entirely or give it negligible weight at best. The meta keywords tag was originally intended to help search engines understand a page's topic in the early days of the internet, but it was heavily abused by websites stuffing irrelevant or excessive keywords to try to manipulate rankings, which led search engines to abandon it as a ranking factor entirely. Using it today provides no ranking benefit whatsoever, and continuing to maintain it across your website is essentially wasted effort that could be spent on strategies that actually move the needle. Instead, your time is far better invested in writing compelling, keyword-relevant meta titles and meta descriptions, since these directly influence click-through rates from search results even though they don't directly boost rankings either, along with focusing on genuinely valuable on-page content, proper header structure, and earning quality backlinks. There's no harm in leaving old meta keywords tags in place if they already exist, but actively adding new ones isn't worth your time.