CLS - Mobile Rollover-Event Takeover

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This ad format combines a total of 3 Mobile Interscroller ads in separate positions of the page.

Technical data

Technical specification:
Mobile Interscroller
(please see below)
Technical specification:
Mobile Interscroller
(please see below)
Technical specification:
Mobile Interscroller
(please see below)

Formats of delivery:

as physical file

Delivery of JPG, PNG, GIF and HTML5-Zip-File is possible (see HTML5-Guideline).

as 3rd-Party-redirect

Delivery of 3rd-Party redirect is not possible.

Agency counting pixels

External counting pixel for impression tracking by the agency is possible.

Special information for this ad format


Specific characteristics of advertising spaces such as delayed loading only with in-view mechanics may mean that not all ad components are initially loaded on a page. We therefore advise against interdependence of the ad components – e.g. via local-connect – where this circumstance has not already been taken into account by your creation.

CLS - complete delivery of ad components

For a better user experience and termination of visible layout movement, advertising spaces in the content are reserved for a maximum placement height. These spaces require an insertion of a noticeable advertising format, hiding or closing is not possible. If the above components are not supplied in full, iqd reserves the right to extend supplied components to the required areas or to use a fallback banner specified by the Publisher in order to avoid empty and white spaces.

Depending on the content and layout of a website, the number of actual advertising spaces may exceed the placements required for the advertising form. These spaces outside the above advertising form coverage will be filled with a fallback banner specified by the publisher in order to avoid empty and white spaces (if necessary). This must be taken into account in particular when booking "Exclusive Formats" for homepage and categories classified as standalone.

Please always note the following:


All elements of a campaign and the creative must be HTTPS-compatible (see SSL conformity (HTTPS)).

Calculation of file size and loading phases

The max. size of the specified ad component and its allocation to the loading phase in question (initial load/subload) refers to the value after the files (HTML, CSS, script, libraries, graphics and other assets) have been gzip-compressed (see File sizes and loading phases).


HTML, scripts and all components that form part of the ad presentation must remain in the ad iFrame tag of the marketer or the 3rd-party host and may not be positioned outside this tag. This means that no DOM insertion of ad components in the top window of the serving website is permitted.

Sound and animation

Ad creations must always be supplied with deactivated sound. Activation is only permitted based on deliberate interaction on the part of the user, and sound volume must comply with the loudness standard EBU R 128.
Animations should not exceed 30 seconds in total, looping is only permit within this time frame. It is important to make sure that these do not unnecessarily burden the processor of the computer.

In addition, since August 2020, the Google Chrome browser installs limits for ad resources (CPU load / loaded MBs) and will remove ads from the page that exceed these limits - "Heavy Ad Intervention".

An ad is considered heavy in terms of CPU load (defined by Chrome Browser),

  1. if the user has not previously interacted with it
  2. the ad scripting uses the main thread of the browser longer than 15 seconds in a 30-second window or in total longer than 60 seconds.

The technical specifications of iq digital for the provision of advertising material shows, that the current product range is well positioned with regard to the possible exceeding of the limit for the Chrome browser. Please adhere to the specifications already upon delivery of the material in order to avoid corrections. iq digital accepts no responsibility for advertisements unloaded by the browser.

Video content

If this ad is not a recognised instream or outstream ad, it is only possible to implement video content with processing as a 3rd-party redirect (if approved) in the host-initiated subload (max. 4 MB in the stationary Web and max 2 MB in the mobile Web); max. length 15 - 30 seconds, frame rate: 25 images per second (FPS). Due to the high bandwidth usage of video-content, videos on smartphones are served with broadband targeting. iq digital reserves its right to add broadband targeting on other platforms as well if it is necessary. Sound may only start upon user interaction.

Click tracking

The ad server of the marketer can only correctly measure the clicks on an ad if a click-sensitive surface to forward the user to the client target site is implemented in the creative code and the insertion of ad server macros for the counting of clicks is possible. An external click command URL (3rd-party click tracking incl. target URL for forwarding to the client landing page) is also to be delivered as follows depending on how the ads are provided:

In the case of delivery of physical IMAGE files Delivery of 1 click command per ad motif; allocation incl. ad server macro as full-area click forwarding by iq digital ad server templating.
In the case of delivery of a physical HTML5 zip file Delivery of 1 click command per ad motif or multi-click area – allocation incl. ad server macro in HTML5 creative code by creative agency - see OVK standard procedure for the transfer of click tag and forwarding - HTML5 Guideline
In the case of delivery of a 3rd-party redirect See Click tracking – Delivery of 3rd-party resources

Other tracking tools

The serving of additional scripts/services for tracking/measurement of parameters other than those required for reporting on campaign performance (e.g. impression counting, click counting and coordinated ad verification) is not permitted and must be communicated and approved in advance. Please refer in particular to the requirements for compliance with data protection regulations and the ban on the creation of profiles from the utilisation behaviour of users on the websites of iq digital (General Terms and Conditions of Business). iq digital reserves the right to reject this kind of tracking.

Ad identification and labelling

The labeling for the differentiation from editorial contributions is carried out for ads on in-page placements by the advertising space on the offering page.


iq digital reserves the right to approve each ad motif on the basis of a case-by-case decision. Ads that do not comply with the specifications, result in excessive reactance (CPU load of average user devices) or impair use and general performance of the pages must be corrected by the agency delivering the ad or can be rejected. The technical specifications of iq digital are subject to change. For this reason, technical specifications apply to the respective advertising order in the version valid at the time the advertising order is concluded.

IAB TCF 2.0 (GDPR macro)

iq digital only admits technology service providers (vendors) for the delivery of advertisements and coordinated tracking that comply with the rules of IAB-TCFv2.0 (Transparency and Consent Franemwork) and have been approved for inclusion on our customers websites (see: Overview technology provider).

The provision of tracking (e.g. tracking pixels) for advertising media or 3rd party redirects must be inclusive GDPR macro (gdpr and gdpr_consent). The creator of the tracking /3rd-party URL makes sure that these parameters are replaced with its ID value (GVL-ID), added only once and passed to services that expect and can handle them correctly.

URL parameter Corresponding Macro Representation in URL*
gdpr GDPR &'gdpr=${GDPR}
gdpr_consent GDPR_CONSENT_XXXXX -
XXXXX represents the numerical Vendor ID (Global Vendor List)
Example: &gdpr_consent=${GDPR_CONSENT_123} for Vendor ID 123.

Source: IAB GDPR-Transparency-and-Consent-Framework.

* The actual provision of the parameters within the final URL may differ from the above example with respect to separators (& or ;). nur IOS und Android-fähige Endgeräte

The individual specifications of the ad in question apply for this ad format combination. Please refer to the information on these ad formats below.

Mobile Interscroller

Schematic representation
Wherever possible, please send the ads in ZIP file format via downloadlink to:

Standard:5 working days before the insertion date


The mobile interscroller implements a large-format background image (size the same as an interstitial) in the viewport of the browser; the image is permanently fixed in the visible area of the user and is optionally clickable for forwarding to the client page. Implementation is based on a display mode in which the background also remains visible at all times as if looking through a window. Insertion of the individual elements with image-font combination knockouts creates a rollover effect when the user scrolls the page.

Technical data

Mobile Interscroller
640 x 920 px
File format:
jpg, png, gif, html5 (static or animated)
Initial Load: max. 100 KB
Host Initiated Subload: Please see File sizes and loading phases (subload)
For programmatic delivery:
320 x 460 px or 320 x 480 px

Formats of delivery:

as physical file

Delivery of JPG, PNG, GIF and HTML5-Zip-File is possible (see HTML5-Guideline).

as 3rd-Party-redirect

Delivery of 3rd-Party redirect is not possible.

Agency counting pixels

External counting pixel for impression tracking by the agency is possible.

Special information for this ad format


If the ad is bigger than the display, it is scaled down to ensure optimum presentation. If the display is bigger than the ad, the ad is centred on the display. Avoid large white spaces as only part of the creation is visible.


The ad is in a fixed position below the content and is only recognisable by the ad cutout if the user scrolls over it.


The cutouts extend across the full width of the screen. Actual height is the height of the scaled creative.

Mobile Interscroller in native apps

The Mobile Interscroller will be delivered in native apps as banner with the same size but without the rollover-effect due to technical restrictions.

Fallback creative for Mobile Interscroller in AMP-pages

The Mobile Interscroller works not inside AMP-pages. This required the additional dilivery of a fallback ad for fixed-position ads: Mobile Content Ad 1:1. Please check the specifications on the corresponding page.

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