# December 2021 Product reviews update and your site

Wednesday, December 1, 2021

> [!IMPORTANT]
> We now post about product reviews updates on our [List of Google Search ranking updates](https://status.search.google.com/products/rGHU1u87FJnkP6W2GwMi/history) page. To learn how a product reviews update works and how you can assess and improve your content, see [Google Search's product reviews update and your website](https://developers.google.com/search/updates/product-reviews-update).


Back in April 2021, we shared a
[product reviews update](https://developers.google.com/search/blog/2021/04/product-reviews-update)
that was designed to
promote high quality product reviews. We are now rolling out a new update, the
first major update since April, that may change how your product reviews rank in
search results. In particular, if you have made positive changes to your
content, you may see that improvement reflected as part of this latest release.
However, note that our automated assessment of product review content is only
one of many factors used in ranking content, so changes can happen at any time
for various reasons.


Over time we have received more feedback from users on what
type of review content is deemed trustworthy and useful, motivating us to
provide additional product review guidance. Users have told us that they trust
reviews with evidence of products actually being tested, and prefer to have more
options to purchase the product.


Therefore we are introducing two new best practices for product reviews, to
take effect in a future update.

- Provide evidence such as visuals, audio, or other links of your own experience with the product, to support your expertise and reinforce the authenticity of your review.
- Consider including links to multiple sellers to give the reader the option to purchase from their merchant of choice, if it makes sense for your site.


These best practices, combined with the best practices shared back in April,
have now been merged into a single documentation page,
[Write high quality product reviews](https://developers.google.com/search/docs/specialty/ecommerce/write-high-quality-reviews).


For additional advice on creating great content or questions on the product
review best practices, please check out Google Search Central
[help pages](https://developers.google.com/search/docs)
and our public
[forums](https://support.google.com/webmasters/community).


Posted by Perry Liu, Software Engineer, Jianfei Zhu, Software Engineer, and [Alan Kent](https://twitter.com/akent99), Developer Advocate