I’ve seen hreflang tags either going missing or break in the rendered HTML. And make sure the entire hreflang cluster is provided on each page that’s included in the cluster.

Moreover, if a page doesn’t even have any meta tags, and for some reason you use JavaScript to add a “noindex” tag, Google will honor the “noindex” request.

With the release of Firefox 23, the HTML tag is no longer supported by any major browser. Firefox 23 also introduces a new, simplified logo, and the option to turn JavaScript off has been removed ...

Google has updated its JavaScript SEO help document to add a new section on how to properly inject canonical link tags using JavaScript. The document says Google does not recommend using ...