The post author writes:<p>&gt; So, very soon, the days of pre-rendering PhantomJs snapshots and serving shadow content to spiders will be over.<p>To be clear: webmasters of sites with dynamic content should not celebrate yet. There are still influential spiders other than Google&#x27;s that do not parse JavaScript (for example, Facebook[1] and Twitter[2]).<p>[1] <a href="https:&#x2F;&#x2F;developers.facebook.com&#x2F;docs&#x2F;sharing&#x2F;webmasters&#x2F;crawler" rel="nofollow">https:&#x2F;&#x2F;developers.facebook.com&#x2F;docs&#x2F;sharing&#x2F;webmasters&#x2F;craw...</a><p>[2] Can&#x27;t find an official statement on this, but <a href="https:&#x2F;&#x2F;twittercommunity.com&#x2F;search?q=javascript%20crawl" rel="nofollow">https:&#x2F;&#x2F;twittercommunity.com&#x2F;search?q=javascript%20crawl</a>