HTML5 Creative Specifications

File Types

HTML, JS, CSS, JPG, JPEG, GIF, PNG, and SVG

File Sizes

Initial Load
Subload
Max Initial Load Count
Max Subload File Count
Max File Size
User-Initiated

300 KB maximum
600 KB maximum
10 files
100 files
5 MB maximum
2.2 MB maximum (RCMD)

JavaScript and
CSS Libraries

Commonly used JavaScript and CSS libraries (such as jQuery) do not need to be included with the creative.

Image Sprite

To help increase performance from HTML ads, include image sprites instead of many images to decrease the number of file requests made by your creative.

Video Tags

We do not recommend the use of video tags in HTML5.

MUST READ: Most Common Reasons for Rejected Ads
  • URL’s can not be hard coded in the HTML file. It must be a clickTAG for Keynes to track clicks.
  • Compressed file format. Please read below for the full exact format needed.

HTML5 File
Formatting

The following packaging options are available for HTML5 creatives:

  • A single HTML file
  • A single root/main HTML file with supporting images
  • A single root/main HTML file with supporting images and additional supporting JS and CSS files.
  • When packaging HTML5 creatives, zip the assets, not the folder containing the assets.

Single HTML File:

  • All information for serving the creative (with the exception of commonly used JavaScript and CSS libraries) should be included in the HTML file.
  • The maximum HTML file size is 200 kilobytes

Zip Compressed File

  • All files for displaying the creative (with the exception of commonly used JavaScript and CSS libraries) should be included in the Zip file.
  • The primary HTML file should be located in the root of the zip file.
  • Zip files must contain no more than 100 files, including at least one HTML file for use as the initiating
  • File for display. (We suggest keeping the file count low to minimize browser performance impact.)
  • The maximum size of any automatically started video should be less than 1.1 megabytes
  • The maximum size of any individual file is 2.2 megabytes.
  • The maximum size of the primary HTML file should be 100 kilobytes.
  • The Zip file should be smaller than 10 megabytes compressed and the contents should be smaller than 12 megabytes uncompressed.
  • Only file types of HTML, JS, CSS, JPG, JPEG, GIF, PNG, and SVG may be included in the Zip file.

HTML5 ClickTAG
Parameters

The ClickTAG parameter is provided to the primary .HTML file as a URL parameter. The name of the URL parameter is customizable at the time of creative upload or during editing. This system is similar to how we provide click-tracking information for hosted Flash ads.

We suggest using JavaScript to read the parameter from the document location URL and using it to set up the landing page for your clicks. You can use single quotes (‘) or double quotes (“) in your code, but you can not mix them. Use either all single quote or all double quotes.

Backup/Default Clickthrough Parameter

  • To correctly call the clickthrough page through the backup ad image, you must supply a clickthrough parameter for that purpose. If you wish to also use that clickthrough URL in your HTML5 creative, you can configure the creative to use the Backup Clickthrough URL as the Default Clickthrough URL.

Retrieving the Click-Tag Parameter

The Click Tag URL can be retrieved using the following code:

function getParameterByName(name) { name = name.replace(/[\[]/, “\\[“).replace(/[\]]/, “\\]”); var regex = new RegExp(“[\\?&]” + name + “=([^&#]*)”), results = regex.exec(location.search); return results === null ? “” : decodeURIComponent(results[1].replace(/\+/g, ” “)); } Plain Text

 

Using Multiple Clickthrough URLs

By appending a URL escaped landing page to the click tag URL, our system will track the click and redirect the request to the given landing page

var clickTag = getParameterByName() +
encodeURIComponent();

Different landing pages can be used for different actions.

Using the Click-Tracking Parameter

When the advertisement is clicked on, the creative must direct the user to the correct click tag page in a new window.

Sample Creative
HTML using
ClickTAG

The following code block shows one way to retrieve and implement a creative with a clickthrough URL that has been specified in the DSP.

In this example, a single image is wrapped with an anchor tag which, when clicked, opens a new window with the address stored in the creative’s clickTAG URL query parameter. The URL to open the window with is stored in window.clickTAG at line 11.

A creative may use any number of ways to open a new window to that address on click. This is one just one example.

<html>
<head>
<script type=”text/javascript” charset=”utf-8″>
function getParameterByName(name) {
name = name.replace(/[\[]/, “\\[“).replace(/[\]]/,
“\\]”);
var regex = new RegExp(“[\\?&]” + name + “=([^&#]*)”),
results = regex.exec(location.search);
return results === null ? “” :
decodeURIComponent(results[1].replace(/\+/g, ” “));
}
var clickTAG = getParameterByName(“clickTAG”);
//At this point, the value for the clickthrough URL
is stored in the variable “window.clickTAG”
//clickTAGs are case-sensitive, so make sure
TAG/Tag/tag is uniform throughout the creative and any
supporting files
</script>
</head><body>
<a
href=”javascript:window.open(window.clickTAG);
void(0);”>
<img src=”clickme.jpg”/>
</a>
</body>
</html>

Check to see if your video assets are high enough quality for the TV screen.