Why doesn't YouTube generate Video Rich Snippets for it's embeds?
There's a simple reason for that, of course. The EMBED tag is not valid for XHTML. It was valid for HTML 4.01, but has since been deprecated. In XHTML, we must use the OBJECT tag for placement of multimedia on a page. YouTube does, in fact, use the OBJECT tag, but they then place the EMBED tag within it, rendering the XHTML code invalid.
In SEO, once rich snippets are added to a WordPress site, how long will it be before Google and Bing index this data?
“Rich Snippets are search results for a website that are “richer” than a normal search result. An examples from our own site, combining Video, Product and Author markup can be found by googling for [Google Analytics plugin]:Testing whether code is technically correctTo test whether your page has all the right markup to be eligible for rich snippets, you can use Google’s Structured Data Testing tool. This tool would, in the preview, show the product markup you see above (the reviews bit, with the stars and the price; “Free” in this case. It does not show the video preview in the testing tool, but if you scroll down the page you would see a http://schema.org/videoobjectobject listed.If it’s implemented correctly but not showing, it might be that Google hasn’t spidered the page yet since implementation. If you go into Google Search Console (former Google Webmaster Tools), under Search Appearance > Structured Data, you should see the specific type of markup. For WooCommerce, this is Product, for Video SEO, it’s VideoObject. If you’re combining data types, like showing videos on product page as we do on Yoast, VideoObject might not show, as Google sees Product as the main type of that page and VideoObject as a part of that Schema. Funnily enough, even though Google clearly combines the two in search results as you can see above, the Structured Data Testing tool can throw an error for the combination.If you see that it’s correctly setup in the structured data testing tool, but it’s not correct in Google Search Console (formerly Google Webmaster Tools), try to update the content in Google’s cache by using Fetch as Googlebot.Why don’t my snippets show in search results?There are several reasons why Google could decide not to show rich snippets for your site. First of all, you have to make sure that technically, your markup is correct, see below on how to check that. If it is technically correct and showing in Google Search Console (formerly Google Webmaster Tools) but not showing in search results, this Google help page might be very helpful. Unfortunately we can’t do much more if it’s all technically correct. In that case it might make more sense to order one of our website reviews, so we can do a full review of your site and tell you what to improve to become more trustworthy to Google.”Source ~ Rich Snippets in search results - Yoast Knowledge Base
Does embedding a YouTube video help or hinder on-page SEO?
68% of YouTube users come to the platform for help in making a purchase decision. Therefore, the issue of product reviews continues to gain momentum for both vloggers and advertisers. In addition, Google “loves” YouTube. In 20% of cases, extended snippets of video are displayed in the search results.Monitor trends on YouTube by using free tools like Trends Map, Trends Dashboard, Trends Blogs.Research to find the top video queries that appear on the first page of Google’s search results. Most often they are:How To videosReviewsInstructionsSports subjectsFunny and cute videosUse the keyword in the title and in the description of the file. Start the title with the keyword, put it in the first 25 words, and repeat it 3-4 times in the description. Add links to the site and social networks in the video description.Do not close comments. The discussion area under the video is a good signal for search engines. Comments are a great way to improve your video SEO strategy!Monitor the position of your video. Thanks to video SEO for YouTube, you’ll get data for adjustments to SEO elements, and information for future strategizing (which videos are better ranked and why).What to expect?Your video could have 50 times more chances to rank well in organic output than text content.Video has CTR 41% higher than text.So yes, YouTube video help on-page SEO.Be sure to check the full version of my last article about video SEO - Video SEO: How to Make Video the Central Element of SEOGood luck!