Campaign Setup

Reddit Ad Unit Specifications

There are a couple different ways to get your brand in front of Reddit users. Each has different pros, and each has different post types and ad specs associated. Choose your own adventure, and size it up:

Ad specifications for Takeover:

Ad specifications for Auction:

Jump to: Reddit Ad Terms, Call-to-Actions

Overview: Takeover Ad Units

Our takeover ad units are available on a reserved CPM. If you’re interested in a Takeover, please reach out to our managed services team

About Reddit Takeover Ad Units

The largest package you can buy (Front Page Takeover + Trending Takeover)

Be the top brand users see for a whole 24 hours whenever they’re cruising Home, Popular, or Search.

Reddit Takeover Includes:

  • Promoted Post (first in-feed ad placement)
  • Top banner (300x600 or 300x250)
  • Sticky banner (300x250)
  • Trending unit on Popular
  • Trending unit on Search
  • Trending landing page

See full specs

About Front Page Takeover Ad Units

Own the Front Page for 24 hours

Be the top brand users see on the most visited real estate — Home and Popular — for 24 hours.

Front Page Takeover Includes:

  • Promoted Post (first in-feed ad placement)
  • Top banner (300x600 or 300x250)
  • Sticky banner (300x250)

See full specs

Amplify your trend across Popular and Search for 24 hours

Be the only brand seen in Trending Today where people discover the most popular topics on Reddit.

Trending Takeover includes:

  • Trending unit on Popular
  • Trending unit on Search
  • Trending landing page

See full specs

About Category Takeover Ad Units

Own top communities in your selected category for 24 hours

Pick from our full list of categories across 9 verticals. When anyone visits those communities, your brand will be the first one they see.

Category Takeover includes:

  • Promoted Post (first in-feed ad placement)
  • Top banner (300x600 or 300x250)
  • Sticky banner (300x250)
  • Optional CTA

See full specs

About First View Ad Units

Take the most direct path to reaching the most engaged Reddit users

Be the first brand seen on the most-visited real estate on Reddit for the entire day. When anyone visits Home or Popular, your brand will be the first ad they see.

First View Includes:

  • Promoted Post or Video (first in-feed ad placement)

See full specs

Reddit Takeover Specs (Front Page Takeover + Trending Takeover specs)

Promoted Post (first in-feed ad placement)

  • Headline/Post Title
    • Placement in Feed: 300 character max
  • Enable/disable comments
  • Call-to-Action button (optional)
  • Destination/Clickthrough URL (optional) (for Video)
  • Display URL (optional)
  • Username (up to 20 characters)
  • Post Type:
    • For Text
      • Post text: 40,000 character max (optional)
    • For Link
      • Card image: 1200x628px, 3MB max file size
      • Thumbnail image: 400x300px or aspect ratio of 4:3, 500 kb max file size 
    • For Video
      • Format: MP4 or MOV (ProRes NOT accepted)
      • File size: 1 GB max file size
      • Dimensions: 1:1 Square; 4:5 Vertical; 4:3 Classic; 16:9 Full Landscape
      • Thumbnail image: 400x300px or aspect ratio of 4:3, 500 kb max file size
      • Length: 0:05 - 0:30s recommended
      • Frame Rate: 30FPS
      • Autoplay if native, click to play if third party video
      • Select thumbnail of video with this icon 

Banner Specs:

  • JPG/PNG, 150k max file size 
  • Top banner: 300x600px or 300x250px (Above the Fold Banner)
  • Sticky banner:300x250px (Sticky Below the Fold Banner)

 

Front Page Takeover Ad Specs

Promoted Post (first in-feed ad placement)

  • Headline/Post Title
    • Placement in Feed: 300 character max
  • Enable/disable comments
  • Call-to-Action button (optional)
  • Destination/Clickthrough URL (optional) (for Video)
  • Display URL (optional)
  • Username (up to 20 characters)
  • Post Type:
    • For Text
      • Post text: 40,000 character max (optional)
    • For Link
      • Card Image: 1200x628px, 3MB max file size
      • Thumbnail image: 400x300px or aspect ratio of 4:3, 500 kb max file size
    • For Video
      • Formats: MP4 or MOV (ProRes NOT accepted)
      • File size: 1 GB max file size
      • Dimensions: 1:1 Square; 4:5 Vertical; 4:3 Classic; 16:9 Full Landscape
      • Thumbnail image: 400x300px or aspect ratio of 4:3, 500 kb max file size
      • Length: 0:05 - 0:30s recommended
      • Frame Rate: 30FPS
      • Autoplay if native, click to play if third party video
      • Select thumbnail of video with this icon 

Banners Specs:

  • JPG/PNG, 150k max file size
  • Top banner: 300x600px or 300x250px (Above the Fold Banner)
  • Sticky banner:300x250px (Sticky Below the Fold Banner)

 

Trending Unit on Popular and Search Ad Specs

  • Headline (Mobile and Desktop): 15 character max
  • Mobile Card Image: 219x96px
    • Optional Thumbnail Image: 105x105px, JPG, PNG,1MB Max File Size
      • Displays in the Steady State search unit
  • Desktop Card Image: 237x178px
    • Sub-Headline (desktop only): 50 character max

Trending Landing Page Specs (Mobile and Desktop):

  • Thumbnail: 400x300px, max file size 500kb
  • Creative:
    • Card Image: 1200x628px, max file size 3MB
    • Video asset
      • Frame Rate: 30FPS
      • Acceptable formats: .Mov, MP4.
      • 1.9:1 aspect ratio
  • Headline/Post Title: 300 character max
  • Destination/ Clickthrough URL
  • Call-to-Action button (optional)

Category Takeover Ad Specs

Promoted Post (first in-feed ad placement)

  • Headline/Post Title
    • Placement in Feed: 300 character max
  • Enable/disable comments
  • Call-to-Action button (optional)
  • Destination/Clickthrough URL (optional) (for Video)
  • Display URL (optional) 
  • Username (up to 20 characters)
  • Post Type:
    • For Text
      • Post text: 40,000 character max (optional)
    • For Link
      • Card image: 1200x628px, 3MB max file size
      • Thumbnail image: 400x300px or aspect ratio of 4:3, 500 kb max file size 
    • For Video
      • Formats: MP4 or MOV (ProRes NOT accepted)
      • File size: 1 GB max file size
      • Dimensions: 1:1 Square; 4:5 Vertical; 4:3 Classic; 16:9 Full Landscape
      • Thumbnail image: 400x300px or aspect ratio of 4:3, 500 kb max file size
      • Length: 0:05 - 0:30s recommended
      • Frame Rate: 30FPS
      • Autoplay if native, click to play if third party video
      • Select thumbnail of video with this icon 

Banner Specs:

  • JPG/PNG, 150k max file size
  • Top banner: 300x600px or 300x250px (Above the Fold Banner)
  • Sticky banner:300x250px (Sticky Below the Fold Banner)

First View Ad Specs

Promoted Post (first in-feed ad placement)

  • Headline/Post Title
    • Placement in Feed: 300 character max
  • Enable/disable comments
  • Call-to-Action button (optional)
  • Destination/Clickthrough URL (optional) (for Video)
  • Display URL (optional) 
  • Username (up to 20 characters)
  • Post Type:
    • For Text
      • Post text: 40,000 character max (optional)
    • For Link
      • Card Image: 1200x628px, 3MB max file size 
      • Thumbnail image: 400x300px or aspect ratio of 4:3, 500kb max file size
    • For Video
      • Formats: MP4 or MOV (ProRes NOT accepted)
      • File size: 1 GB max file size
      • Dimensions: 1:1 Square; 4:5 Vertical; 4:3 Classic; 16:9 Full Landscape
      • Thumbnail image: 400x300px or aspect ratio of 4:3, 500 kb max file size
      • Length: 0:05 - 0:30s recommended
      • Frame Rate: 30FPS
      • Autoplay if native, click to play if third party video
      • Select thumbnail of video with this icon 

 

Overview: Auction units

Our Auction units are a self-serve option you can kick off right from your Ads Dashboard. These units are available with CPM, CPC, and CPV bids.

Key Features

  • Image,Text, Video, or Carousel 
  • Call-To-Action button (optional)
  • Multiple bid types (CPM, CPC, CPV)
  • Ad Placement in Feed, Conversation, or Both

Reddit’s Creative Testing Toolkit

Feed placement

To learn more about our placement options, check out our Ad Placements article.

Promoted Post: Text Ad Specs

  • Headline/Post Title 
    • Placement in Feed: 300 character max
    • Placement in Conversations: 250 character max for Desktop, 100 character max for Mobile
  • Post copy: 40,000 character max (optional)
  • Enable/disable comments

Promoted Post: Video Ad Specs

  • Headline/Post Title 
    • Placement in Feed: 300 character max
  • Destination/Clickthrough URL (optional)
  • Display URL (optional)
  • Username (up to 20 characters)
  • Thumbnail image: 400x300px or aspect ratio of 4:3, 500 kb max file size 
  • Video
    • Formats: MP4 or MOV (ProRes NOT accepted)
    • File size: 1 GB max file size
    • Dimensions: 1:1 Square; 4:5 Vertical; 4:3 Classic; 16:9 Full Landscape
    • Length: 0:05 - 0:30s recommended
    • Frame Rate: up to 30FPS
    • Autoplay if native, click to play if third party video
  • Select thumbnail of video with this icon 
  • Enable/disable comments
  • Call-To-Action button (optional)
    • Download
    • Install
    • Shop Now
    • View More
    • Sign Up
    • Learn More
    • Contact Us
    • Get Showtimes
    • Get Quote
    • See Menu
    • Apply Now
    • Watch Now
    • Play Now
    • Pre-order Now
  • Post Title (headline):
    • 300 character max
  • Destination/Clickthrough URL
  • Display URL (optional)
  • Username (up to 20 characters)
  • Card image: 1200x628px, 3MB max file size
  • Thumbnail image: 400x300px or aspect ratio of 4:3, 500 kb max file size
  • Enable/disable comments
  • Call-to-Action button (optional)
  • Headline/Post title:
    • Placement in Feed: 300 character max
  • Destination/Clickthrough URL: This is required for each card. The URL can be the same across cards or different.
    Note: URLs must start with HTTPS and can't end in a semicolon (;)
  • Display URL (optional)
  • Username (up to 20 characters)
  • Card images:
    • Minimum: 2 cards | Maximum: 6 cards
    • 1200x1200px square image, 20MB max file size, JPG or PNG. GIFs: 3MB max file size, 3-10s in length.
      • For desktop-only campaign, we can also support 1200x628 px
  • Caption text (appears under card image): 45 character limit
  • Additional options:
    • Add a Thumbnail image (recommended for classic mode viewing): 400x300 px (JPG; 500KB Max File Size, Aspect Ratio: 4:3)
    • Reorder your cards as needed to tell your story
  • Impression and click trackers: Impression trackers are only available at the ad level, while click trackers are available at the card level. 
  • Ability to enable/disable comments
  • Call-To-Action button (optional)

Conversation placement

To learn more about our placement options, check out our Ad Placements article.

Conversation Placement ad specs are the same as the ad specs for a Promoted Post in Feed.  These are a few best practice recommendations:

  • Headline copy character limit is shorter than the Feed (which is 300 max). Headlines that exceed the character limit will be cut off.
    • Mobile & mWeb: 100 characters max
    • Desktop: 250 characters max

  • Card Image Spec: 
    • We highly recommend using a 400x300 thumbnail image which renders best in the Convo placement
    • If a 400x300 is not available, we will use the standard 1200x628 image, however the resizing of a large image into a compact thumbnail space may impact the creative quality.

  • Video assets: While video is supported, they are click-to-play. Video assets will be thumbnail size, and expand and play on click. The Convo placement should not be used if video view rate is a primary success metric.

  • NOT supported: 
    • Cannot be used with Promoted Carousel
    • Text only posts. We will show a placeholder image if no image/video post is uploaded.

Call-to-Actions

  • Download
  • Install
  • Shop Now
  • View More
  • Sign Up
  • Learn More
  • Contact Us
  • Get Showtimes
  • Get Quote
  • See Menu
  • Apply Now
  • Watch Now
  • Play Now
  • Pre-order Now
  • Order Now

 

Terms

  • Reddit Inc. has final approval for all ads with respect to editorial/creative content.
  • Reddit Inc. reserves the right to remove an advertisement from its websites at any time for any reason.
  • Reddit Inc. reserves the right to terminate a campaign at any indication that it is not being properly served.
  • Changes to an existing campaign must be received at least one business day prior to the change.
  • Reddit Inc. reserves the right to refuse any advertising without explanation and to modify and/or append these guidelines without advance notice.
  • Full policies & guidelines

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