How many headlines can a responsive search ad have?
Up to 15 headlines, with a minimum of 3, and each can be 30 characters. You can also add 2 to 4 descriptions of up to 90 characters, and Google shows up to 3 headlines at a time.
What is the Google Search description character limit?
90 characters per description, and you can add up to 4. The 2 display path fields allow 15 characters each, and the final URL can run to 2,048 characters.
How long can sitelink text be?
25 characters in most languages, or 12 in double-width languages such as Chinese, Japanese and Korean. You need at least 2 sitelinks for them to show, and an ad can show up to 6 on desktop and 8 on mobile.
What is the callout character limit?
25 characters, or 12 in double-width languages. Callouts are not clickable, so use them for short selling points such as delivery, support or pricing terms.
What size are Google Search image assets?
Square 1:1 images are required, at 1200 × 1200 px recommended and 300 × 300 px minimum. Landscape 1.91:1 images are optional, at 1200 × 628 px. Both must be PNG or JPG up to 5,120 KB, with up to 20 per campaign.
How many values does a structured snippet need?
At least 3 values per header, and Google suggests 4 or more. The header comes from a fixed list of 13, such as Brands, Models or Types, and desktop ads can show up to 2 headers at once.
Can a Google Search ad link to my app?
Yes, with 1 app asset per ad. It adds a link to your Google Play or App Store listing below the ad, while the headline still goes to your website. If installs are the main goal, Google points to app promotion ads instead.
Do pinned headlines always show?
Only 3 positions are guaranteed: Headline 1, Headline 2 and Description 1. Text pinned to Headline 3 or Description 2 may not show, so put required wording in a guaranteed slot.
Sources. Specs checked on 3 October 2026 against Google's Search campaign specs, About responsive search ads, About sitelink assets, About callout assets, About structured snippet assets, About image assets for Search campaigns, About business information, About price assets, About app assets, About Ad Strength for responsive search ads, Best practices for responsive search ads, Use as many asset types as possible, Campaign-level headlines and descriptions. Platforms update specs often, so confirm them in the ad manager before you upload.