Creative Advertising Specs & Placeholders

Creative Advertising Specs & Placeholders

Display Ad Specs: 

Standard display banner sizes:

  • Mobile Banner (320 x 50)
  • Leaderboard (728 x 90)
  • Wide Skyscraper (160 x 600)
  • Medium Rectangle (300 x 250)
  • Half-Page Skyscraper (300 x 600)
  • Billboard (970 x 250)
  • Mobile Full-Page Interstitial - Portrait (320 x 480)
  • Mobile Full-Page Interstitial - Landscape (480 x 320)
  • Tablet Full-Page Interstitial - Portrait (768 x 1024)
  • Tablet Full-Page Interstitial - Landscape (1024 x 768)

The following file formats are accepted: JPG, PNG, GIF, or HTML5. 

Optimal file size: 150 KB

Creative must be high resolution (The creative must be a minimum of 72 pixels per inch and is recommended to be 144 pixels per inch).

To learn more about rich media creative guidelines please refer to this article.

Facebook/Instagram Specs: 

  1. 1200x628px (Facebook Placements)
  2. 1080x1080px (Instagram/Facebook Placements)
  3. 1080x1920 (Instagram/Facebook Stories & Reels)
  4. Image Format: JPG or PNG 
  5. Video Format: MP4

    Ad Text Requirements:

  6. Primary Text (required) - 125 characters recommended (up to 1,000)
  7. Headline (required) - 40 characters recommended (up to 225) 
  8. Description (optional) - 30 characters recommended (up to 500) 

LinkedIn Specs: 

Design Recommendations
  1. File Type: jpg, png, or gif
  2. File Size: 5 MB
  3. Image Ratio:
  4. 1.91:1 (horizontal, desktop and mobile) 
  5. 1:1 (square, desktop and mobile)
  6. 1:1.91 (vertical, mobile only)

Text Recommendations
  1. Ad name (optional): 255 characters
  2. Headline: 70 characters
  3. Introductory text:  150 characters
  4. Description (LAN only): 70 characters. Only required if using LinkedIn Audience Network (LAN).

Technical Requirements
  1. File Type: jpg, png, or gif
  2. File Size: 5 MB

Horizontal / Landscape
  1. **Horizontal images will deliver to both desktop and mobile
  2. Minimum: 640 x 360 pixels
  3. Maximum: 7680 x 4320 pixels
  4. Recommended: 1.91:1 - 1200 x 628 pixels

Square
  1. **LinkedIn recommends this aspect ratio for delivery across both desktop and mobile
  2. Minimum: 360 x 360 pixels
  3. Maximum: 4320 x 4320 pixels
  4. Recommended: 1:1 - 1200 x 1200 pixels

Vertical
  1. **LinkedIn recommends this aspect ratio for best performance on CTR on mobile (vertical images do not deliver to desktop)
  2. Minimum: 360 x 640 pixels
  3. Maximum: 2430 x 4320 pixels
  4. Recommended: 
  5. 1:1.91 - 628 x 1200 pixels
  6. 2:3 - 600 x 900 pixels
  7. 4:5 - 720 x 900 pixels

Call To Action Options
  1. Apply
  2. Download
  3. View Quote
  4. Learn More
  5. Sign Up
  6. Subscribe
  7. Register
  8. Join
  9. Attend
  10. Request Demo

URL Requirements
  1. Landing page URL: Required
  2. URL prefix: http:// or https://
  3. URL characters: 2000 characters for destination field URL


YouTube Specs:

Resolution

1080p (Full HD)

Recommended pixels (px) for HD:
  1. 1920 x 1080px (horizontal)
  2. 1080 x 1920px (vertical)
  3. 1080 x 1080px (square)
Aspect Ratio
  1. 16:9 for horizontal
  1. 9:16 for vertical
  1. 1:1 for square
Format

.MPG (MPEG-2 or MPEG-4), .WMV, .AVI, .MOV and .FLV .MPEG-1, .MP4, .MPEGPS, 3GPP, WebM, DNxHR, ProRes, CineForm and HEVC (h265)

File Size

≤256 GB


Connected TV / OTT Specs:

  1. Resolution
    • 1280x720 for 720p
    • 1920x1080 for 1080p
  2. Duration
    • 15 and 30 seconds recommended
    • Creatives that are not exactly 15 or 30 seconds will experience limited scale
    • 60 seconds maximum
  3. Aspect ratio: 16:9

  4. File format: MP4

  5. File size: 1 GB maximum


Tip: If you’re not sure that your video meets the aspect ratio requirement, check the dimensions and calculate the aspect ratio manually. Divide the first number by the second number. If the result is 1.77, then it meets the 16:9 requirement. For example, if your video's dimensions are 2560x1440 → 2560 / 1440 = 1.77.

Programmatic Audio Specs: 

  • Supported File Formats: OGG, MP3, MP4, WAV, FLAC, AAC. 
  • Companion Banner: 300x250. Format JPG, PNG, GIF. Up to 700 KB
  • API Framework: VAST 2.0+ supported
  • Max File Size: <500MB, smaller is better
  • Bit Rate: Publisher dependent, 128–160 Kbps recommended. Max bit rate supported is 320.

Duration: 15s or 30s recommended. 


Spotify Specs: 

File type
  1. MP3, .OGG, or WAV format
  2. For Programmatic .OGG format required
File size
  1. 1MB
  2. For private marketplace and programmatic max file size is 500MB
Companion Banner
  1. Aspect Ratio: 1x1
  2. Dimensions: 640x640
  3. File type: JPEG, .PNG

Sample rate of 44.1kHz
Audio with the wrong sample rate runs the risk of playing at the wrong speed.

Bit rate of 192kbps

Important for good quality audio. Think of bit depth like the resolution of a digital photograph.

Stereo

If your ad has music or sound effects (SFX), it will likely sound crowded in mono. Most music tracks are stereo, and bouncing to a mono file will flatten any spatial mixing on the track. Bouncing in stereo
also allows you to place different components of the ad (music, SFX, VO) in different parts of the sound field for more engaging audio.

Overall loudness: -16 LUFS
Integrated average loudness of -16 LUFS (+/- 1.5 LUFS) and a True Peak limit of -2.0 dBTP. This ensures the ad volume is consistent with content and throughout the ad itself. If listeners feel the need to adjust their volume for an ad, they’re more likely to skip or feel interrupted.

Creative Asset Placeholders:

Leaderboard (728x90px)
Big Box (300x250px)
Skyscraper (160x600px)




    • Related Articles

    • Radio & Digital Creative Best Practices

      View the slides below, or download a PDF at the bottom of this page!

    • Creative Placeholders

      If you get the following error while trying to upload creatives: Please feel free to download the following placeholders to upload in place of a Leaderboard, Big Box, and Skycraper.

    • SoCast Reach Sales Enablement: Uploading Creative

      This process is usually done by the sales person. As you create your campaign, you'll need to upload creative. Below are the suggested sizes and specifications. A proposal / campaign cannot be submitted without creative. Leaderboard Dimensions: 728px ...

    • Programmatic Display Advertising Training Deck

      Click the link in the "Attachment" section to download the full training deck on Programmatic Display Advertising:

    • Creative Assets Request Form

      If your client requests Creative Assets for their upcoming campaign, please have them fill out the following Creative Intake Form: SoCast Customer Creative Intake Form: CLICK HERE: https://zfrmz.com/eTMfc1wDAcUnxqtc5F06 Note: Additional charges may ...