How do I add reviews to my website?

The default for any business with a Maps listing, because Google reviews carry the most weight with a reader who has never heard of you. Depth is the thing to check when comparing tools: Google's official API hands back five reviews per request with no way to ask for others, so a widget built on it alone shows five. Zyff collects from the public Maps listing instead and can load up to 200, keeping everything it has already collected.

Worth doing wherever your customers use Yelp — in the US, typically restaurants and local services — and two things are worth knowing first. Yelp's own API returns short excerpts rather than whole reviews, so a widget built on it alone can only show snippets; Zyff reads your public business page instead and shows the reviews in full. And Yelp's software decides which reviews to recommend, so the rating worth showing is the one Yelp publishes, not an average of whatever a widget happened to collect.

Worth doing if your audience found you on Facebook, and useful precisely because it is a different set of people from your Google reviewers. One wrinkle to expect: Facebook retired star ratings in 2018 and replaced them with a yes-or-no recommendation, so a page with no legacy rating has a percentage of people recommending it rather than a score out of five. A widget that draws five stars anyway is inventing a number nobody gave.

The right answer when your customers will not leave a public review but will happily send you an email saying something generous — common in B2B, consulting and anything with a long sales cycle. You control the wording, the ordering and the photograph, which is both the advantage and the reason a reader discounts them slightly.

Attribute them honestly: a name, a role and a company that can be checked is worth several anonymous raves. Never write one yourself.

Stacking a Google widget, a Facebook widget and a testimonial wall on one page works well, and each block being visibly from a different source is part of why. What does not work is merging them into a single averaged star rating, which is a number no platform publishes and you cannot substantiate.

The other thing to avoid is adding review structured data to the page. Marking up reviews about your own business with aggregate-rating properties is self-serving review markup — an explicit Google violation, and a manual action taken against your domain rather than the widget's.