4th Line Annotations

Note: Verizon Media is now known as Yahoo.

The 4th Line Annotation is a second description line that contains the best annotation for the ad, based on content from the advertiser's landing page and relevant to the user's search query. It provides relevant and engaging at-a-glance information, such as product details or venue information, from reputable third-party sources.

Fourth line annotation example

Results: Some partners have seen an estimated lift of +1.7% CTR and +2.1% RPM when combined with Callout Extensions and 4th Line Annotations. Results may vary.

Markets: NAR (US, CA), EMEA (UK, FR, DE, ES, IT, NL, de-CH, fr-CH, it-CH, SE)

Parameter: "adEnable4thLine" (case sensitive)


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Show off rave reviews alongside your search ads potentially increasing CTR.


Image Extension

Posting a small image next to an ad is a great way to get noticed.


Official Site Badge

Some Partners have seen a +2% CTR lift from this badge, displayed next to your ad headline.