Standard IAB Formats

*All HTML5 creative needs to be hosted by a Telegraph approved 3rd party. The Telegraph does not have the ability to host HTML5. For more information on this, please email adops@telegraph.co.uk

• All third party tags need to be supplied as SSL secure iFrames.

• We do not accept blocking tags, for any brand safety concerns, please liaise with your sales rep.

• Maximum animation length is 30 seconds, but we recommend due to site refresh rules to keep this to below 15 seconds.

• All audio must be click to initiate

• Hover and click to expand is allowed on all creatives except for megabanners in which it must be click to expand

• Expandable ad formats must have a close button on the top right and must automatically close on roll out.

• Expansion panel must be set to remove flash objects, iFrames and java applets on the page.

• All expandable formats must have a clear second numerical count down.

• All assets need to be loaded from the same domain name and host. This includes any JS, CSS or any other assets.

• Cross domain file loading is not permitted

• Only one .html file should be used at the root of the file structure to start the advert i.e. index-.html

• All creative should have a solid colour background , or if white MUST have a 1x1pixel black solid border.

API Restrictions

We do not permit access to the following features of HTML5:

• No use of Web-SQL Server database

• No use of Web-Storage

• No use to IndexDB

• No use of WebSockets

• No use of WebWorkers

• No FileSystem API access

• No Geolocation API

• No use of Push API and Notification API