300x250 Medium Rectangle (Desktop)
Build your brand with premium display banners. These ads deliver a richer experience to the user than traditional standard banners. They can include video, interactive content, dynamic data and expansion to offer more real estate.
Deliverables
Ad components | File type | Dimensions | Max file size |
---|---|---|---|
Initial File Load | HTML, CSS, JS, JPG, PNG, SVG | 300 x 250 | 150 KB |
Host-Initiated Subload | HTML, CSS, JS, JPG, PNG, SVG | 300 x 250 | 300 KB |
Host-Initiated Video | MP4 and WebM | 300 x 250 | 1.1 MB |
User-Initiated File Load | HTML, CSS, JS, JPG, PNG, SVG and/or MP4 and WebM | 300 x 250 | 2.2 MB |
Expandable File Load | HTML, CSS, JS, JPG, PNG, SVG and/or MP4 and WebM | 700 x 500 | 2.2 MB |
Backup/Static Image | JPG or PNG | 300 x 250 | 150 KB |
Available Features
Customizable. Reach out to the internal creative team to learn more about capabilities.
- Hour
- Minute
- Second
- AM/PM
- Day of Week
Layout
- Countdown placement & formatting are customizable
Copy Options
- Customizable
Countdown Required Deliverables
- Start and end dates of countdown
- Start and end time of countdown (including timezone)
Time of Day Required Deliverables
- List of times or days-of-week and corresponding messaging/creative.
Notes
- Supported across all time zones
- Leverages the user's clock (with IP-lookup as backup) to determine time
- Countdown clocks should only auto-animate the “seconds” for up to :15, per standard ad spec guideline. Can request an ad policy exception to have countdown animate indefinitely, as long as it is not too flashy or distracting
NOTE: Expand feature is currently disabled for the following right rail ad sizes serving via DSP across Yahoo O&O publishers: 300x250, 300x600 and 160x600.
Functionality
- Expansion is optional
- Only permitted upon user interaction with the ad via click or tap (rollover expansion not allowed)
Call-To-Action
- Must be clearly defined
Required Elements
Image
- File Types: JPG, GIF, PNG (Equirectangular)
- 2:1 aspect ratio (2048x1024 minimum)
- Up to 2MB
- Up to 2-6 touchpoints
- Include CTA
- Avoid putting price or inventory that could change
Source File Settings (In-Player):
Preferred frame sizes of 640x360 (or higher) for 16:9 video or 640x480 (or higher) for 4:3 video to maintain uniform video quality. The following settings are meant as a guideline for a good compromise of quality versus file size (feel free to increase bandwidth to increase quality).
Length: Autoplay = 15 seconds max; User-initiated = unlimited (Note: See max file weights under "Deliverables" above)
Format: MOV preferred, MP4
Frame Rate: 24+ fps
Key Frames: Every 24 frames
Rate Control Mode: Multi-pass
Audio Codec: AAC, 128 kbps, 44 kHz, stereo
Audio is muted by default; Audio is permitted upon user interaction with the ad
Minimum Bitrate, Video Bitrate, Frame Size:
1500 kbps, 1372 kbps, 480x360
1500 kbps, 1372 kbps, 480x270
Preferred Bitrate, Video Bitrate, Frame Size:
1200 kbps, 1072 kbps, 640x480
1200 kbps, 1072 kbps, 640x360
- Carousel size is customizable
- Up to 5 cards is recommended
- Static or video allowed
- Toggle functionality (< >) is required
Ad components | File type | Dimensions | Max file size |
---|---|---|---|
Pattern (Selected by Yahoo Creative Studio, Ads Team) | — | — | — |
CTA Copy/Graphic (e.g. “scan now” or “get offer”) | — | — | — |
Hex Color (e.g. Yahoo purple: #430297) | — | — | — |
Background Color (Choose light or dark configuration) | — | — | — |
Font Type (No customization allowed) | — | — | — |
(Optional) Brand Logo | PNG | Up to 20% of the code’s center | 5 MB |
Creative Best Practices
General
Served via 300x250 ad call
Screen Support
- Desktop
Animation
Autoplay: 15 seconds max
Back-up Static
- Required for instances when the user's browser does not support creative functionality (e.g., HTML5, JavaScript).
- 3rd Party served ad tags are responsible for delivering the back-up image experience.
Ad Vendor
Ads must be site served or served by an approved vendor.
3rd Party Ad Tags & Trackers
Approved 3rd party vendors are allowed to serve select ads. To find out which ad formats are approved to serve via 3rd party, reach out to your Sales POC.
Approved 3rd party vendor trackers (e.g. click, impression, etc.) are allowed across ad formats.
For a list of approved 3rd party vendors, please visit the 3rd Party Vendor List.
Ad Choices
Display Ads have an Ad Choices linkable icon or graphic with "AdChoices" label. Read about AdChoices for more information.
Ad Policies & Guidelines
Ads must comply with Global Yahoo Advertising Policies.
HTML5 Guidelines
HTML5 ad specifications must follow HTML5 Guidelines.
SSL Compliance
Ads & 3rd party vendors must be secure and SSL compliant.
Creative Submission Timelines
Refer to Creative Submission Guidelines for ad design & build SLAs.