Image Extensions is a branded image (48px by 48px) shown next to the search ad. Clicking this branded image leads to the advertiser's landing page and is available for the first ad only.
Results: Some partners have seen an estimated lift of +1% CTR. Results may vary.
Markets: US, CA
Parameter: "enableImageInAds=1" (case sensitive)
HTTPS Support: Image in Ads will reuse API "enableHttpsFavicon" and keep https setting same with Favicon.
enableHttpsFavicon=0 (get Image in Ads with Http URL[Default Value])
enableHttpsFavicon=1 (get Image in Ads with Https URL)