Google Limits ‘aggregateRating’ and ‘review’ Properties

JS Morisset Leave a comment Schema, WPSSO JSON

Google has recently updated their Review snippet structured data guidelines to limit the Schema ‘aggregateRating’ and ‘review’ properties to only a select handful of approved Schema types.

The upcoming release of the WPSSO JSON v2.10.0 add-on will follow these new Review snippet structured data guidelines, instead of conforming to the official Schema standard, as the current version does.

If you notice a “not a known valid target type for the itemReviewed property” error in Google structured data validator results, the ‘aggregateRating’ and/or ‘review’ may be included in a non-approved Schema type.

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Schema Article AMP 1:1, 4:3, and 16:9 images for Google

JS Morisset Leave a comment Schema, WPSSO Core, WPSSO JSON

The latest release of WPSSO Core v6.3.0 and the WPSSO JSON v2.9.0 add-on include new image sizes in Schema Article AMP markup for Google.

A few months ago, Google quietly updated their AMP structured data guidelines to suggest that:

For best results, provide multiple high-resolution images with the following aspect ratios: 16×9, 4×3, and 1×1.

Quote from Google’s AMP with structured data

Since WPSSO Core and its add-ons already use a variety of image sizes for different markup standards (ie. Open Graph, Twitter Cards, Schema, etc.), it was fairly easy to add support for Google’s new Article AMP image sizes. You can find the new images sizes, along with all other WPSSO image sizes, under the WordPress Settings > SSO Image Sizes settings page.

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Sharper Thumbnails for Facebook, Google, Open Graph, Pinterest, Schema, SEO, Twitter, etc.

JS Morisset Open Graph, Pinterest Rich Pins, Rich Cards, Schema, SEO, Twitter Cards, WPSSO TIE

Pop quiz! Did you know?

1) WordPress creates thumbnails automatically?

WordPress uses the larger / full-size image you upload to create smaller thumbnail images (see your WordPress Settings > Media page for the complete list of sizes).

For example: A photo gallery page will show small thumbnails of the larger / full-size images you uploaded. Themes will often include the featured image you selected in a predefined image size and location in the webpage.

2) All images must be sharpened after resizing?

This is such a standard process that Photoshop, for example, automatically applies a default amount of sharpening when resizing any image — you must specifically uncheck an option in Photoshop to avoid sharpenning an image during the resize process!

3) WordPress does not sharpen resized images?

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Better Schema for WooCommerce Step-by-step Guide

JS Morisset WooCommerce, WPSSO Core, WPSSO JSON

Google’s Structured Data Testing Tool and/or Google’s Search Console for site owners may report the following errors for the default Schema JSON-LD markup offered by WooCommerce:

  • The aggregateRating field is recommended.
  • The brand field is recommended.
  • The review field is recommended.
  • This Product is missing a global identifier (e.g. isbn, mpn or gtin8).

I’ve written a simple Step-by-step Guide for WooCommerce and WPSSO that explains these issues, and offers a quick and easy solution.

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[Solution] Google “Missing Product ID” for WooCommerce

JS Morisset Rich Cards, Schema, SEO, WooCommerce, WPSSO Core, WPSSO JSON

WooCommerce manages information on product Availability (aka Stock), Prices, SKU, etc., but additional WooCommerce product attributes must be created to provide more product information for Google.

The WPSSO Core Pro plugin (and its WPSSO Schema JSON-LD Markup Pro add-on), for example, include a variety of WooCommerce product attribute values in its Schema markup, including the product Brand, Color, Condition, EAN, GTIN-8, GTIN-12, GTIN-13, GTIN-14, ISBN, Material, MPN (aka Manufacturer Part Number), Size, and Gender.

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Why WordPress Image Sizes for Social Sharing and SEO?

JS Morisset Open Graph, Rich Cards, Schema, SEO, Twitter Cards, WPSSO Core

All social and SEO plugins – except one that I know of – use the full size image URL from the WordPress media library when adding image meta tags to the webpage (ie. og:image, twitter:image, etc.), and/or adding images to Schema JSON-LD markup for the webpage. This can be problematic for several reasons…

  1. The image resolution may be too small.
  2. The image resolution may be too large and the file size too big.
  3. The aspect ratio (width or height) may exceed a maximum value.
  4. The image displayed on the social / search site is center cropped.

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Custom Product Attributes in WPSSO for WooCommerce

JS Morisset WooCommerce, WPSSO Core

WPSSO Core Pro and the WPSSO JSON Pro add-on provide complete Schema markup (aka Google’s Product Rich Card) for WooCommerce products, including all variations and extensive product information (size, weight, sale prices / dates, color, condition, etc.) – far beyond the basic Schema markup provided by the WooCommerce plugin itself.

WPSSO Core Pro can also read several custom WooCommerce product attributes, if / when you create them in your WooCommerce store:

  • Brand
  • Color
  • Condition
  • EAN
  • GTIN-8
  • GTIN-12
  • GTIN-13
  • GTIN-14
  • ISBN
  • Material
  • Size
  • Gender

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WPBakery Bug in Change Handler

JS Morisset jQuery, WPBakery

The WPBakery (aka Visual Composer) changeHandler function uses the “vc.accordion” data attribute without first checking for it’s existence.

Any plugin or theme using a jQuery show / hide event trigger will trip this bug, and the post editing page will fail to load properly.

I’ve posted a bug report to the Visual Composer channel on Slack, but the channel does not seem to be read by WPBakery employees, so this bug may continue to go unfixed. If you are a WPBakery customer affected by this issue, you may want to report the bug to WPBakery.

The unminified WPBakery code looks like this – notice that the data("vc.accordion") attribute is being used here without first checking if the attribute actually exists or not.

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Social and SEO Plugins with Quality Assurance Features

JS Morisset Open Graph, Plugins, Schema, SEO

Most social and SEO plugins can use a post’s featured image, or offer a way to select a custom social image, but do little else to make sure an image is suitable for social sharing – they assume the article author / editor is aware of each social site’s image requirements (minimum and maximum image resolution, aspect ratio, and maximum image file size) and has selected an appropriate image. For example, Facebook requires that all images be larger than 200x200px, preferably 600x315px, or (even better) 1200x630px for high-resolution displays like retina laptops and phones, have an aspect ratio no wider / taller than 3:1, and less than 8 MB in size. Twitter and Google also have their own requirements, which are different than Facebook’s.

Using a social or SEO plugin that creates resized images from the originals you upload, and checks those resized images to make sure they conform to the requirements of each social site, is only part of a complete Quality Assurance solution. All too often, themes also include a few basic social meta tags in their templates (they shouldn’t, but they often do), that prevent social crawlers from reading your webpage meta tags correctly – some meta tags should never be duplicated (Facebook, for example, can reject all meta tags because of a single duplicate), or the theme may include the full size featured image before all other meta tags, so the wrong image will be used for social shares (this is fairly common). If your social or SEO plugin does not check for duplicate meta tags, you may never realize that you have a problem.

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Redirect Attachment Pages for SEO? Read This First!

JS Morisset 2 Comments SEO, WordPress

Last month Yoast added a feature to their Yoast SEO (aka WordPress SEO) plugin to allow redirecting attachment pages to the media itself (image, video, PDF, etc). For example, an attachment page with an image would be redirected to the full size image. The reason given by Yoast is that attachment pages are simply an HTML wrapper around an image, and provide little to no value for SEO.

This may be true IF the attachment page does not include any Schema markup — either as JSON-LD or microdata — to provide Google (Bing and Pinterest too) with information about the media, AND you’ve not entered a title, caption, alternative text, and description for your media in the WordPress Media library (if you haven’t, you really should).

And if you’re using the WPSSO Core plugin with its WPSSO Schema JSON-LD Markup add-on, for example, you probably would NOT want to redirect attachment pages to the media file — you’ll just be throwing away all that awesome SEO markup about the media. ;-)

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