Enter your video URL below to start the validation
Choose a profile your video ad creative should be tested against. Then enter the URL to your video file (mp4, webm, or ogg formats are supported) and click "Validate Video" to begin the analysis.
What we test for
When you run a test in our Video Validator, we check your video file for the following common properties and best practices of video ad creatives:
Video Duration Test
Video Duration test analysis value is total length of the video in seconds. For video ads, it is recommended to keep the duration between 3 to 60 seconds to maintain viewer engagement, where longer videos may lead to higher abandonment rates. For display ads, shorter durations of 15 to 30 seconds are often more effective. Display video ads exceeding 30 seconds may face heavy ad intervention.
Video Duration Test Profile Test video duration to ensure it meets industry standards and delivers optimal performance across platforms.Video duration is a critical factor in ad effectiveness. Different ad formats and platforms have varying optimal duration ranges to maximize viewer engagement.Video Duration Checker
Video File Size Test
Video File Size test analysis describes the size of the video file in a human-readable format. The video file size is an important factor for ad delivery and user experience. Your video file size should be optimized to balance quality and loading times and sit within a minimum size of 500.00 KB and a maximum size of 2.00 MB for display ads and up to 10.00 MB for VAST video ads.
Video File Size test Profile Test video file size to ensure it meets industry standards and delivers optimal performance across platforms.There is no single IAB VAST file size standard; instead, the Interactive Advertising Bureau recommends providing multiple video files to optimize ad delivery for different connection speeds. The latest VAST 4.x specification emphasizes supplying low, medium, and high-quality options, as well as a "mezzanine" file, rather than enforcing a single file size limit.Video File Size Checker
Video Extension Test
Video Extension test analysis checks if the video file extension (e.g., mp4, webm, ogg) is supported for ad delivery.
Video Extension test Profile Test Video File Extension is the suffix at the end of a file name that indicates the file format..Common video file extensions include .mp4, .webm, and .ogg. Using standard file extensions ensures compatibility across various devices and platforms.Video Extension Checker
Video File Format Test
Video File Format test analysis checks if the video file format (e.g., MPEG-4, QuickTime) is supported for ad delivery.
Video Format test Profile Video File Format is the container that holds the video and metadata streams. Using a widely supported format ensures compatibility across different devices and platforms.Best practices recommend using MP4 (with H.264 codec) for broad compatibility across web and mobile platforms. Other formats cause compatibility issues or unsupported playback issues.Video Format Checker
Video Resolution Test
Video Resolution test analysis. Value is total pixel count (width * height).
Video Resolution test Profile Test video resolution to ensure it meets industry standards and delivers optimal performance across platforms.Common video resolutions used in advertising include 1920x1080 (Full HD), 1280x720 (HD), and 640x360 (SD). Higher resolutions provide better quality but require more bandwidth, so it is important to balance quality and performance based on the target platform and ad format.Video Resolution Checker
Video Frame Rate (fps) Test
Value is how many frames per second (fps) your video plays. Standard frame rates are 23.976, 24, 25, 29.97, 30
Video Frames Per Second test Profile Test video frames per second to ensure it meets industry standards and delivers optimal performance across platforms.IAB does not mandate a specific frame rate for video ads but recommends using standard frame rates such as 23.976, 24, 25, 29.97, 30 fps to ensure compatibility across various devices and platforms.Video Frame Rate Checker
Video Bit Rate Test
Video Bit Rate test analysis (bitrate indicates video quality level) the higher the bit rate, the better the quality.
Video Bitrate test Profile Test video bitrate to ensure it meets industry standards and delivers optimal performance across platforms.Recommended bitrates vary based on ad format and resolution and frame rate. For example, a 1080p video for a CTV video ad might have a recommended bitrate range of 3,000 to 6,000 kbps, while a 720p video for a web display ad might be optimized between 1,500 to 3,000 kbps.Video Bitrate Checker
Video Codec Test
Codec determines how video data is compressed and decompressed. Modern codecs like H.264 and H.265 offer better quality at lower bit rates compared to older codecs.
Video Codec test Profile Test video codec to ensure it meets industry standards and delivers optimal performance across platforms.Common video codecs include H.264 (AVC), H.265 (HEVC), VP8, VP9, and AV1. Using widely supported codecs ensures compatibility across various devices and platforms.Video Codec Checker
Moov Atom Location Test
The MOOV atom contains important metadata for video files. It should be located at the beginning of the file for optimal playback. This allows for faster streaming and playback start times by enabling the video player to access necessary metadata without downloading the entire file first.
Video Moov Atom Location test Profile Test video Moov Atom location to ensure it meets industry standards and delivers optimal performance across platforms.The MOOV atom should be located at the beginning of the file for optimal playback. This allows for faster streaming and playback start times by enabling the video player to access necessary metadata without downloading the entire file first.Video Moov Atom Location Checker
Video Aspect Ratio Test
Video Aspect Ratio test analysis describes the proportional relationship between the width and height of the video. Common aspect ratios include 16:9 (widescreen) and 4:3 (standard). Using standard aspect ratios ensures compatibility across various devices and platforms, providing a better viewing experience.
Video Aspect Ratio test Profile Accurate aspect ratios are essential for consistent visual rendering. Misaligned ratios can cause display issues, distortions, or rejections across ad delivery systems, ultimately reducing campaign effectiveness.Common video aspect ratios include 16:9 (widescreen) and 4:3 (standard). Knowing the target platform’s requirements is crucial for optimal ad delivery.Video Aspect Ratio Checker
Video Color Space Test
Color space defines how colors are represented and displayed. Common spaces include Rec. 709 (HD), Rec. 2020 (4K/HDR), and sRGB.
Video Color Space test Profile Video Color Space defines how colors are represented and displayed. Generally RGB (typically sRGB) is assumed, which is the standard color space for the internet and web-based content. sRGB is the de facto standard for web content, as it aligns with the broadcast standard for high-definition television (Rec. 709). The Interactive Advertising Bureau (IAB) does not mandate a universal color space standard. Instead, it provides contextual guidelines—favoring RGB (typically sRGB) for web display ads and YUV for video content. In digital video, industry standards commonly employ YUV chroma subsampling formats such as 4:2:0 or 4:2:2, with codec profiles like H.264 specifying further technical details.Important Considerations:
The specific color space and other technical requirements depend on the ad format (e.g., display vs. video) and the delivery platform (e.g., web vs. connected TV).
The Interactive Advertising Bureau (IAB) does not mandate a universal color space standard. Instead, it provides contextual guidelines—favoring RGB (typically sRGB) for web display ads and YUV for video content. In digital video, industry standards commonly employ YUV chroma subsampling formats such as 4:2:0 or 4:2:2, with codec profiles like H.264 specifying further technical details.Video Color Space Checker
Video Scan Type Test
Scan type indicates how the video frames are displayed. Progressive scan displays all lines in each frame sequentially, while interlaced scan alternates between odd and even lines. Progressive scan is preferred for online video content as it provides smoother motion and better quality on digital displays.
Video Scan Type test Profile Test video scan type to ensure it meets industry standards and delivers optimal performance across platforms.Understanding the scan type can help optimize video content for its intended platform, ensuring the best possible viewing experience for the audience.Video Scan Type Checker
Why validate video ads
Video ads don’t just need to play — they need to meet industry standards, deliver a seamless user experience, and perform reliably across every environment. Validating your video ads ensures compliance with IAB specifications such as VAST, OMID, and SIMID, which define how ads should load, track, and interact with players. When these standards aren’t met, ads can fail to render correctly, misreport impressions, or break entirely in certain placements.
A key reason to validate is to prevent issues flagged by Heavy Ad Intervention (HAI) — Google Chrome’s system that automatically unloads ads consuming excessive CPU, network, or memory resources. Heavy ads not only waste media spend but also degrade page performance and user trust. By validating your creatives, you can identify oversized files, inefficient scripts, and playback errors before they reach the end user.
Ultimately, video ad validation protects both your ad performance and your audience’s experience. Valid ads load quickly, respect device resources, and track properly — leading to better completion rates, accurate analytics, and higher engagement. It’s the difference between a flawless, standards-compliant ad and one that disrupts the viewer, drains resources, or gets blocked entirely.
Looking to validate your VAST tags?
Once your video file is validated, take the next step with our VAST Tag Tester It helps you understand how your ad behaves in real-world VAST players — verifying tracking events, error responses, wrapper chains for true IAB compliance and much more. Learn by our VAST examples on how to structure and optimize your VAST tags for maximum ad performance.