: Should have an alt tag? I want to follow good SEO practices by adding alt tags to all my images. For Facebook sharing, I have this code: <meta property="og:image" content="..."> Can

@Nimeshi995

No, you do not need an alt attribute on that meta tag. In fact, it is not even allowed as others have already said.

However, (today) Open Graph specifies and even suggests to provide the image alt text via an og:image:alt property. See ogp.me/#structured.
Note that the og:image meta tag is not an image tag, but rather a hint on which image should be used when displaying that page somewhere else. Thus, the specified alt text will probably improve the image usage for that other site that embeds your page, e.g. Facebook.

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@Welton855

No, a meta element cannot have an alt attribute in any HTML specification. Technically, you could have the attribute title="Facebook image", since the title attribute is allowed for all elements according to HTML5 LC (though not HTML 4.01), but it is very unlikely that any browser or search engine cares about it for meta; so it would matter as comment-like documentation only.

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