These guidelines are designed in accordance with the IAB Creative Display Guidance with the aim to ensure a positive consumer experience in balance with both publishers’ and advertisers’ needs, namely faster page load and the trend towards rich media creative. This general guidelines do not include Youtube as it has its own technical specifications.

Editorial All creatives are subject to final senior editorial approval prior campaign launch.
Sound Audio must be user-initiated.
Skip Button All video ads must be skippable after 5 sec., unless otherwise stated. Servus.com allows unskippable video ads.
Click-Through All ads must lead to a new browser window (target=_blank).
Display Creative Color Palette All creatives with partially black or white colored backgrounds must have a visible (contrasting) border (min one pixel).

Flash Please note that Adobe flash is not accepted.
Mute Button For all ads featuring audio, a “Mute” button or equivalent is mandatory.
Audio Full MIX stereo is accepted.
Creative rotation Please note that the maximum of 4 creative revisions per ad placement per flight are accepted. If you plan to have more, please notify your Key Account Manager upfront.
QA Rich media & HTML creatives are subject to testing, such creatives must be delivered min. 5 days prior the campaign start date. Please note that rich media creatives should be hosted by 3rd party.
3rd party served:
  • All rich media (HTML) creatives need to be 3rd party hosted. Advertiser needs to provide placement tags. Streaming links are not accepted.
  • ONLY 3rd party tags from certified vendors are accepted.
  • Please always include detailed implementation directions.
  • iFRAME tags are accepted.
  • All VAST tags must include a skip button(5sec.). Servus.com VAST tag does not need to include skip button.
  • Tags must include multiple mp4 / h264 video files.
  • FLV i.e. Flash Video is not accepted.
  • Usage of HTTPS is mandatory
  • Maximum number of file requests per creative is 25
Click Tag For all rich media and HTML, a DFP compatible click tag is mandatory.
Tracking pixels 1x1 tracking pixels can be used with all ad units for tracking ads performance e.g. impressions served and clicks generated. Please note that retargeting pixels are not accepted.

For RBMH hosted: Please send the respective file formats and click URL at least 3 days prior to launch for standard media & 5 days for rich media. Please note that only image files(.jpg, .png…) and .gif are accepted for hosting. We cannot host rich media banners or banners via streaming links.

For 3rd Party hosted: Please send the respective placement tags at least 5 days prior to campaign for testing, all third-party tags are subject to QA and testing prior campaign start.

Tracking: With picture/gif creative please keep in mind that we can only implement click and impression trackers. Click tracker should redirect to the target page. If you want to include more trackers, please send us a placement tag with the tracking on the creative already implemented.

  • File type: .jpeg, .png, .gif
  • Max animation length: 15 seconds
  • Max loops: 3
  • Min submission time: 3 business days
Size Device Creative dimensions Max file size Properties
Leaderboard desktop tablet 728x90 50K ALL
MPU desktop tablet mobile 300x250 70K ALL
Billboard desktop 970x250 70K ALL
Half-page desktop 300x600 70K ALL
Skyscraper desktop 160x600 50K ALL
Mobile smartphone 320x50 50K ALL

  • File type: HTML5 (needs to be hosted by the agency/advertiser and sent to us as a placement tag). Fully working iFrame tags are accepted as well.
  • Max animation length: Max 15 seconds on mobile. Desktop no limit (recommended max 30 seconds).
  • Max loops: 3
  • Min submission time: 5 business days
Size Device Creative Dimensions Max initial file load Properties
Leaderboard desktop tablet 728x90 200K,Host-initiated subload 100K
MPU desktop tablet 300x250 200K,Host-initiated subload 300K
Billboard desktop tablet 970x250 250K,Host-initiated subload 500K
Half-page desktop tablet 300x600 250K,Host-initiated subload 500K
Skyscraper desktop tablet 160x600 250K,Host-initiated subload 300K
Mobile smartphone 320x50 50K, Host-initiated subload 100K
  • Initial File Load = includes all assets and files necessary (.html, .js, .ccs. .woff, images, etc. for completing the first visual display of the ad. The initial file load size of an ad is limited in order to preserve the page load performance and thus the user’s web browsing experience. For non-rich media ads, the initial file load size limit is all that’s allowed for the ad. Host Initiated Subload = the additional file limit allowed for rich-media ads that is auto-initiated. For more information, please consult the iAB Display Advertising Guidelines.

  • File type: .jpeg, .png, .gif; HTML5 (needs to be hosted by the agency/advertiser and sent to us as a placement tag)
  • Min submission time: 5 business days
  • Max file size: 150K
Ad group Creative dimensions
Interstitial 320x480 / 480x320
MPU 300x250

For detailed information please visit the following links from YouTube:

Youtube Technical specifications

Certified vendor list

  • Delivery of video is only supported as:

    • Video URL: Upload a video on YouTube (public or unlisted) and provide us with URL.
    • Vast tag (NON-EEA countries only): the tag needs to be from certified vendor and secure. VPAID is not allowed. Please make sure it adheres to the YouTube Technical specifications above.
  • Allowed tracking pixels:
    • EEA: comScore, DoubleVerify, IAS, MOAT, Nielsen, Kantar, and Research Now.
    • Outisde EEA: In addition to those allowed in EEA, also Sizmek, Innovid, Flashtalking, Extreme Reach, C3 Metrics, Adform, Weborama, Adocean.

No other pixels are allowed in VAST tags or as seperate tracking pixels.

  • Creative dimensions: 16:9
  • Min. submission time: 3 business days
Ad group Max. Length Is skippable Comments
In-stream Select 6 minutes (recommended up to 60 seconds) Yes
In-stream 15 seconds No
20 seconds(EMEA ONLY) No
6 seconds No Only in US, CA, BR, GB, DE, FR, JP, AU, NL, CH, IT
  • Optional Companion Banner:
    • size: max 150K
    • dimensions: 300x60
    • jpeg, gif, VAST tag served - up to 24fps.
    • max. 30 seconds animation (including loops), user initiated sound, no sound user-initiated/auto play allowed.

  • Submission time: min. 10 business days prior to campaign start.
  • Frame Size: 1920x1080
  • Aspect Ratio: 16:9 - Full Frame
  • Scan Type: Native (do not convert)
  • Frame Rate: Native (do not convert)
  • File Type: ProResHQ
  • Audio Format: Stereo
  • Audio Loudness: -23 LUFS
  • Audio Peak: max -8dBTP (True Peak)
Ad Group Max. length (in s)
Mid-roll 30

  • Creative dimensions: 16:9;1920x1080 or 1280x720
  • File type: .mov, .mp4, VAST tag (only IMA3 conform Skip Ad Button)
  • Min. submission time: 5 business days
Ad group Sound Max. length Max. file size
Pre-Roll, Mid-Roll, Post-roll YES ( -23 LUFS). Stereo audio track required. 20 seconds* <100MB (VAST up to 5MB)
  • Spots with length of more than 20 seconds upon request.

  • Creative dimensions: 16:9;1920x1080 or 1280x720
  • File type: .mov, .mp4, VAST tag
  • Min. submission time: 5 business days
  • Video will start muted.
Ad group Sound Max. file size
Video/Outstream YES ( -23 LUFS). Stereo audio track required. <100 (VAST up to 5MB)

Please feel free to use contacts for your region and we will be happy to advise you.