i recently discovered that there are sites posting my content including text and photos automatically as soon as i make a post on my news website. can i prevent it? how? actually some are giving links but when they post it as soon as i post, then how will google understand i am the original poster? how do they do this? what should i do? those sites copy from lot of sites, i am sure i am not the first victim about it... what must i do? some of these sites are outside of US
they use your rss feed to scrap your content, there is not much you can do about that, I mean directly. You can use a copyright service, put some clear DMCA on your site, eventually watermark your pictures (though it could annoy your readers). if you use wordpress, you can eventually use this plugin, https://wordpress.org/plugins/digiproveblog/ it adds some copywriting notice in your post. You can also use yoast seo to block some of your rss feed.