Should your website use AMP or responsive design? Check functionality first, then address speed

If you need the same website to work on phones, tablets, and computers, responsive web design (RWD) can serve as your foundation. Evaluate AMP only after confirming that it supports the functionality you need; the two are not mutually exclusive.Google’s developer documentation states that AMP is not just for phones and recommends using responsive design to build AMP pages. If the available functionality meets your needs, you can consider standalone AMP pages that serve both desktop and mobile visitors. The decision should therefore center not on which label is better for SEO, but on functionality, usability across devices, and performance requirements. (S1)

If one URL needs to serve different devices, evaluate responsive design first

Responsive design delivers content using the same URL and HTML, then uses CSS to adjust its presentation on different screens. Semrush lists several practical advantages: links are easy to share, separate mobile URLs are unnecessary, and switching between device-specific versions requires no redirects. This can reduce related maintenance work and common errors. These are architectural conveniences, not a guarantee of improved rankings. (S5)

For example, a restaurant website should let visitors clearly read the menu and find the reservation option on their phones, rather than simply shrinking the desktop page. Semrush’s restaurant website guide also emphasizes readable images, text, and calls to action, along with navigation that makes it easy to view menus and book a table. (S28)

Before considering AMP, confirm that it supports all required functionality

The threshold question when evaluating AMP is whether it supports all the functionality you need. Google’s recommendation includes this condition and should not be interpreted as saying that every website should switch to AMP. The documentation also states that AMP pages must pass validation to work as intended. (S1)

• If you want the same AMP page to serve phones and computers, you can evaluate a standalone AMP approach with a responsive layout.
• If you have not yet confirmed support for essential functionality, you should not commit to adopting AMP across the site solely in anticipation of faster loading.
• Validating AMP and checking whether a page is easy to read and use are separate tasks that both need attention.

Reservations about AMP have also been expressed. In an article published by Semrush in 2016, the author chose to wait because they valued control over their website, while suggesting that they might reconsider if AMP later became an important ranking signal. This was a personal trade-off and hypothetical scenario at the time, not a current ranking rule. (S23)

A layout that adapts to the screen does not guarantee speed or usability

Responsive design is no substitute for performance improvements. An article on mobile optimization on Neil Patel’s website identifies speed, content, and readability as additional areas to address. Performance recommendations include reducing file and image sizes and evaluating a CDN and caching. (S15, S7)

Start your checks with specific questions: Does the expanded menu extend beyond the phone’s screen? Are text and buttons clear? Do images slow down loading? An awoo article on navigation design specifically warns that responsive navigation should prevent menus from extending beyond their container and becoming difficult to tap. Identify these problems first, then decide whether to improve the layout, compress resources, or evaluate AMP, rather than treating a technology choice as a substitute for a good user experience. (S16)