What Is AMP?
This past October, Google announced Accelerated Mobile Pages (AMP), a very accessible framework for creating fast-loading mobile web pages. The open-source initiative is designed to enable publishers to easily improve speed (and consequently, the user experience) for their mobile readership without sacrificing any ad revenue that they may rely upon.
Although experienced developers can often achieve similar results through intensive performance optimizations, publishers often neglect this due to resource constraints. AMP allows these optimizations to be easily achieved without altering the primary mobile web experience.
There’s also the added benefit of its future usage by Google and other prominent web technology companies, who are encouraging its use by integrating it heavily into their respective platforms.
How Does AMP Work?
Essentially a framework for creating mobile web pages, AMP consists of three basic parts:
- AMP HTML:A subset of HTML, this markup language has some custom tags and properties and many restrictions. But if you are familiar with regular HTML, you should not have difficulty adapting existing pages to AMP HTML. For more details on how it differs from basic HTML, check out AMP Project’s list of required markup that your AMP HTML page “must” have.
- AMP CDN:An optional Content Delivery Network, it will take your AMP-enabled pages, cache them and automatically make some performance optimizations.
How Will You AMP Your Site?
For starters, you will have to maintain at least two versions of any article page: The original version of your article page that users will typically see, and the AMP version of that page.
It is also likely that you will have to rewrite your site template to accommodate the restrictions. For example, all CSS in AMP must be in-line and be less than 50KB. Due to loading-intensiveness of custom fonts, they must be loaded using a special amp-font extension, in order to better control that loading.
Multimedia must be handled specially. For example, images need to utilize the custom amp-img element
and must include an explicit width and height.
Like images, there is a custom tag that must be used to embed locally hosted videos via HTML5, called amp-video. For embedding YouTube video, however — which the majority of web videos are — there is a separate extended component, amp-youtube.
There is also support for things such as slideshows via amp-carousel and image lightboxes via amp-image-lightbox, as well social media embeds for Twitter, Instagram, Facebook, Pinterest and Vine via their own extended components.
These tag and extended components aren’t difficult to use; they just require some planning in your site design.
In order for Google (and other technologies supporting the AMP Project) to detect the AMP version of your article, you will need to modify the original version of the article page. The original article page must include the following tag, essentially a canonical tag for AMP pages:
<link rel="amphtml" href="http://www.example.com/blog-post/amp/">
The AMP Discovery page also mentions that some platforms that support AMP will require Schema.org meta data to specify the content type of the page. (Currently, “article,” “recipe,” “review” and “video” are listed as page type examples on GitHub.)
Moreover, it also indicates that Schema.org meta data “is a requirement to make your content eligible to appear in the demo of the Google Search news carousel.” So if you’re trying to get a future benefit from Google by implementing AMP, make sure you get your schema right!