![]() ![]() ![]() Open Graph protocol also specifies the use of property and content attributes for markup ( ) while Twitter cards use name and content. Note that while Open Graph recommends specifying the “og” RDFa Core 1.1 CURIE prefix mapping via, no such markup is required for Twitter cards and its use of the twitter: prefix in a HTML meta element’s name attribute. This allows for both to be defined on the page independently, and minimizes the amount of duplicate markup required to describe content and experience. When the Twitter card processor looks for tags on a page, it first checks for the Twitter-specific property, and if not present, falls back to the supported Open Graph property. When using Open Graph protocol to describe data on a page, it is easy to generate a Twitter card without duplicating tags and data. Twitter card tags look similar to Open Graph tags, and are based on the same conventions as the Open Graph protocol. URLs with cards are processed in order of appearance in the Tweet, first to last.Images or media attached to Tweets will have precedence over any card attached to a URL.Here is the order of precedence when processing multiple URLs: In some circumstances, users may want to Tweet multiple URLs. For Ad formats with a call-to-action, visit Twitter Ads for Website Cards.For photos and animated GIFs, upload the media directly with the Tweet or consider using the Twitter API to upload media.Accounts can pin a Tweet to the top of their timeline, which auto-expands the Tweet and displays the Card.If you are looking to bring media (photos, videos and Cards) into the timeline, consider one of the following options: ![]() In limited circumstances, Cards may appear in the timeline, such as in images posted to Twitter, Ad formats, and Twitter-run experiments. Twitter Cards generated from meta tags only appear when a Tweet is either expanded in the timeline (on web) or viewed on the Tweet’s individual page (by clicking on the date from the timeline, either on web or on mobile). If you encounter issues with cards in Tweets not appearing properly, see the Cards Troubleshooting Guide. To verify this, run the following command:Ĭontent is cached by Twitter for 7 days after a link to a page with card markup has been published in a Tweet. The server’s robots.txt file must be saved as plain text with ASCII character encoding. Here is another example, which specifies which directories are allowed to be crawled by Twitterbot (in this case, disallowing all except the images and archives directories): Twitter uses the User-Agent of Twitterbot (with version, such as Twitterbot/1.0), which can be used to create an exception in the robots.txt file.įor example, here is a robots.txt which disallows crawling for all robots, except Twitter’s fetcher: If an image URL is blocked, no thumbnail or photo will be shown. If a page with card markup is blocked, no card will be shown. Twitter’s crawler respects Google’s robots.txt specification when scanning URLs. This applies to the Summary with Large Image card.Ĭonfigure card attribution using the following properties: Card for the website used in the card for the content creator / author. For example, may set the the website attribution to “ for front page articles, and “ for articles in the Arts & Entertainment section.Ĭreator Attribution: Indicates the individual user that created the content within the card. Note that a service may set separate Twitter accounts for different pages/sections of their website, and the most appropriate Twitter account should be used to provide the best context for the user. Website Attribution: Indicates the Twitter account for the website or platform on which the content was published. Users will be able to follow and view the profiles of attributed accounts directly from the card. If more than one twitter:card value exists in the page, the “last” one in sequence will take priority.Įach card has built-in content attribution, which surfaces appropriate Twitter accounts for the content as specified by you. Only one card type per-page is supported. ![]() The card type, which will be one of “summary”, “summary_large_image”, “app”, or “player”. The combined collection of properties defines the overall card experience on Twitter, and each card type supports and requires a specific set of properties.Īll cards have one basic property in common - the card type value: Card Property To get started with implementing Cards markup, specify the type of card for your content by adding the following HTML markup to the HEAD section of the page:Ĭard properties are simple key-value pairs, each defined in an HTML meta tag as seen above. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |