SEO and AMP (Accelerated Mobile Pages): How to Use This Technology to Improve Loading Speed

Introduction

In the digital age where everything is at your fingertips, a high-performing website has become essential for all businesses. Search engine optimization (SEO) and Accelerated Mobile Pages (AMP) are two key technologies that can significantly improve your website’s performance.

The term SEO is widely recognized in the field of online marketing. It is a practice that optimizes different aspects of your website so that it is easier for search engines to find. This can increase your website’s visibility and attract more traffic.

On the other hand, AMP is a relatively new technology designed to improve web page loading speed, especially on mobile devices. This technology promotes a smoother and faster user experience, which can encourage visitors to stay longer on your site and interact more with your content.

What is AMP and why is it important?

Accelerated Mobile Pages (AMP) is an open-source project launched by Google with the aim of improving the speed and performance of web pages on mobile devices. By using a simplified version of HTML, AMP removes non-essential elements that slow down page loading, enabling near-instant loading.

Although AMP is often associated with optimization for mobile devices, it can also improve the performance of your pages on desktop computers. Indeed, a fast-loading page is a key element for a good user experience, regardless of the platform used.

How to use AMP to improve loading speed

To implement AMP on your site, you will need to create an AMP version of each of your pages. This involves using simplified HTML code and removing certain elements such as forms or custom JavaScript scripts, which can slow down the loading of your pages.

It is also recommended to use Google’s AMP validation tool to check that your AMP pages are properly formatted and comply with the AMP project guidelines. In addition, don’t forget to add a link to the AMP version of each page in the code of the original page, so that Google can detect and index your AMP content correctly.

Finally, it is important to note that AMP is just one of many tools you can use to improve your site’s loading speed. Other strategies, such as image optimization, reducing CSS and JavaScript code, and using a content delivery network (CDN), can also help speed up your site.

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Mobile-first context: why speed has become crucial

Over the past decade, mobile browsing has surpassed desktop browsing in the majority of countries,
forcing a complete overhaul of SEO strategies. In 2018, Google made official «mobile-first indexing, that is to say,
the priority consideration of a site’s mobile version for ranking. This shift has made load speed
a decisive criterion, not only for SEO, but also for user experience,
conversion and retention. Deloitte studies have shown that a gain of just one second in mobile load time
can increase the conversion rate by 8 % in retail and by 10 % in travel. In this context, AMP has
quickly emerged as a responsive technology, incorporating a set of rules that constrain code to ensure
a near-instant display.

The technical fundamentals of AMP: lightweight HTML, asynchronous JavaScript, and built-in CDN

The AMP project is based on three pillars capable of drastically reducing latency. First, a subset of HTML
called AMP HTML, eliminating or replacing elements likely to block rendering (for example, img is replaced
by amp-img). Second pillar: a proprietary JavaScript library, presented as non-blocking, which manages
the asynchronous loading of resources and neutralizes document.write() and other calls likely to freeze the
main thread. Finally, Google leverages the concept of the AMP cache, a global CDN serving validated pages from
subdomains https://cdn.ampproject.org, which reduces the physical and logical distance between the server and the user.

Restricted HTML and strict validations

AMP validation is not a simple recommendation: it's a requirement. Any forbidden tag – for example,
<input type="file"> or <frame> – will return an error «AMP validation failed and will exclude the page from the
dedicated carousels in the SERP. By drastically limiting the variety of tags, AMP ensures non-blocking rendering,
but often requires rethinking features (menus, sliders, multi-step forms) as components
Authorized AMP (amp-carousel, amp-form, etc.). The developer is therefore not only constrained, he is
supported by an ecosystem of predefined web components optimized for performance.

The role of the AMP cache in perceived latency

When a user clicks on an AMP result in Google, it is served directly from Google's cache, which
eliminates TCP route discovery to the origin server, reduces the time to first byte and eliminates the initial
DNS lookup. At the scale of a media site whose audiences are global, the AMP CDN can represent several hundred
milliseconds saved, particularly on 3G networks still used in vast geographic areas. The logs
of ’El País« thus showed that in Latin America the median delay before display was divided by three after deployment
of AMP, going from 2.9 s to 1.0 s.

Measurable impact of AMP on the Core Web Vitals

Since 2021, Google has officially incorporated the Core Web Vitals (LCP, FID, CLS) into its algorithm. AMP was designed
precisely to meet these indicators even before they existed: the script amp-boilerplate forces the content to
not to shift, improving Cumulative Layout Shift (CLS), while asynchronous JavaScript minimizes the First
Input Delay (FID). As for Largest Contentful Paint (LCP), banning render-blocking scripts and using the CDN reduces
its threshold typically below 2.5 s. The British publisher The Guardian reports an average CLS of 0.02 on AMP pages
versus 0.09 on traditional mobile pages, a gap sufficient to move from a «Needs Improvement” rating to
«Good” according to Search Console.

Impact of AMP on crawl budget and indexing

Any high-traffic SEO team knows the constraint of crawl budget. Each additional URL is one less candidate
for the bot’s visit, especially on large e-commerce sites. AMP affects this budget in two ways. First,
potential duplication between non-AMP and AMP versions increases the total volume, but thanks to the use of tags
rel="canonical" and rel="amphtml", Googlebot can largely ignore redundancies. Second, AMP pages
respond faster; Google has confirmed that server response time is a parameter for regulating crawl rate.
A server capable of rendering pages in 100 ms will encourage Googlebot to consume more URLs, improving coverage of
overall indexing.

SEO best practices specific to AMP pages

Canonical tag: avoid cannibalization and PageRank dilution

Each AMP page must include a tag <link rel="canonical"> pointing to the non-AMP version (or to itself if
no other version exists). In addition, the non-AMP page adds <link rel="amphtml"> to the AMP version. This cross-linking
assures Google that this is one and the same resource, consolidating popularity signals and preventing
cannibalization. In 2016, several e-commerce merchants lost rankings after omitting the canonical, causing
internal competition between the two variants and splitting their link building in two.

Structured data: a visibility booster in the SERP

AMP does not negate the importance of markup structured data. . On the contrary, some «Top stories” carousels require the
presence of Article, NewsArticle or VideoObject. The recipe publisher Marmiton saw the share of «rich results”
increase by +18 % in Search Console after combining AMP and Recipe JSON-LD, creating a synergy between perceived speed
and visual appeal in the SERP. For a technical blog, inserting ’FAQPage or HowTo can also
unlock extended snippets, taking up more organic space.

Case studies: media, e-commerce and blogs

The Washington Post: 23 % increase in returning visits

One of AMP’s first partners, the Washington Post, migrated more than a thousand articles as early as 2016. The newspaper
observed an 88 % reduction in median load time and, above all, a snowball effect: after six months,
23 % of readers viewed at least three articles per session, compared with 14 % before AMP. Velocity therefore acts as a
facilitator of content consumption – a key parameter for media outlets dependent on programmatic advertising.

AliExpress and the e-commerce challenge

Although known for its PWA, AliExpress tested AMP on its product listing pages for certain emerging markets where
connectivity is limited. AMP product detail pages showed a click-through rate 10.5 % higher on the SERP
mobile, but the complexity of the checkout (incompatible with amp-form at the time) led the team to a hybrid model:
AMP for discovery, then redirection to the PWA for conversion. This experience is a reminder that AMP is sometimes a
first link in a broader funnel and must be designed as such.

Independent blogging: the Backlinko case

Brian Dean of Backlinko converted his blog to AMP in 2020. Result: +13 % organic traffic in 90 days, mainly
thanks to a better ranking on «how to queries. The streamlined structure reduced the dom size from 65 %, hence a
Largest Contentful Paint of 1.1 s. However, Dean highlights the need for careful AMP design; a version that is too
minimalist can reduce time spent on the page, a quality signal indirectly correlated with SEO.

Content strategy, monetization and AMP limitations

AMP implementation raises questions about advertising and analytics. Many ad serving networks have had to create
specific formats (amp-ad). While Google Ad Manager was quickly compatible, others, such as Amazon Transparent Ad
Marketplace, lagged behind, leading to a temporary decrease in eCPM. To make up for this shortfall, some
publishers adopted direct-sold «native” ads encapsulated in amp-iframe. On the analytics side, AMP requires double tagging:
analytics.js on the classic version and amp-analytics via a JSON configuration. Session discrepancies (often
3-5 % loss) must be anticipated in performance reports.

AMP vs PWA, SSR and CSR: choose or combine?

The question is not always AMP or PWA (Progressive Web App); it can be a coupling. Twitter Lite integrates
AMP for external linking while the PWA takes over once the user is authenticated. Likewise, frameworks
modern (Next.js, Nuxt, Astro) offer AMP-first or AMP-hybrid modes, coupling server-side rendering (SSR) for
bots and client-side hydration for advanced interactivity. Some companies, such as Booking.com, have
preferred to optimize their SSR pipeline rather than maintain two sources of truth (AMP/non-AMP). They rely on
the same performance principles as AMP (lazy-loading, preconnect, bundle splitting) without the rigidity of the format.

Progressive implementation: from audit to deployment

An AMP migration begins with a Lighthouse audit and a full crawl (Screaming Frog, Sitebulb) in order to identify the
priority templates: article, product, category pages. Then comes the creation of the validated AMP prototype by
https://validator.ampproject.org. . The most common strategy alternates a deployment side-by-side, leaving the choice
to the user (switch, header link) and observing performance on an A/B sample. The French agency Wexperience
adopted this approach for La Redoute, testing 10 % of traffic before generalization. The KPIs tracked include LCP, bounce rate,
revenue per session and bot crawl ratio.

AMP SEO-oriented deployment checklist

• Generate a distinct URL (suffixe /amp/ or parameter ?amp)
• Add the tag <html ⚡> to indicate AMP mode
• Implement <link rel="canonical"> and <link rel="amphtml">
• Load amp-boilerplate.css and the script https://cdn.ampproject.org/v0.js
• Check validation via the JavaScript console: AMP.printState()
• Update the sitemap.xml if the AMP version is self-canonical
• Submit AMP URLs in Search Console («Enhancements" report)
• Monitor specific structured errors (JSON-LD non-compliance, images 1200×800 px)
• Configure amp-analytics and link the View IDs to Google Analytics 4
• Test the impact on Ads via separate reports (eCPM, viewability, CLS)

Measure and iterate: diagnostic tools and KPIs

Deployment is only the first step; the continuous optimization phase is crucial.
Tools: PageSpeed Insights provides CrUX field data, WebPageTest lets you record loading
frame by frame, Lighthouse CI makes monitoring in CI/CD easier.
KPIs: beyond LCP <2.5 s, we will set a First Contentful Paint <1.8 s, a Total Blocking Time <200 ms, a CLS <0.1. In SEO, we will track AMP indexing coverage, pure mobile organic traffic, CTR on the Top Stories carousel, and of course, micro-conversions (sign-ups, add to cart). For a media outlet, the combination «Pages per session« + “Ad viewability” is relevant: if AMP makes the user leave after a single read, the objective is not met.

Advanced optimization: preloading, preconnecting, and next-gen images

AMP allows the attribute preload via amp-script to anticipate the critical resource.
Preconnect (<link rel="preconnect">) to the third-party API, for example Stripe or Algolia,
reduces handshake time, but watch out for quotas; too many preconnects weigh down the DNS cache.
On the image side, <amp-img> supports the format WebP and, since 2022, AVIF, provided that you offer a fallback jpg.
Tests on a hotel website showed a gain of 35 % in total page weight after migrating jpeg→WebP.
Finally, the use of amp-install-serviceworker can turn an AMP page into an entry point to a PWA,
combining AMP speed and PWA offline.

AMP and voice search: an underestimated asset

Voice assistants (Google Assistant, Alexa) use fast and structured content.
Google Assistant often retrieves the AMP version of an article for the «Read It . feature. .
Insert tags around key paragraphs and enrich the AMP with Speakable
improves the chances of being chosen as an answer. Libération.fr observed a 40 % increase in voice citations
after implementing Speakable on its AMP pages.

The future of AMP after the Page Experience Update

In 2021, Google removed the AMP requirement to access the «Top stories” carousel. .
However, AMP has not disappeared. Its source code is now managed by the OpenJS Foundation, gaining in open governance.
The roadmap includes the more permissive «amp-script” component, the integration of ES modules and the
gradual abandonment of the attribute ⚡ in favor of a loading="eager" native one.
For SEOs, this means a convergence between AMP best practices and modern Web standards.
Sites that master the AMP ecosystem will have a natural advantage to migrate to Chrome Fast Pages
or any future performance requirement from Google. On the other hand, those who relied exclusively on the AMP cache
will need to invest in more sustainable server and front-end optimizations.

Operational conclusion: decide, test, optimize

Adopting AMP to improve speed is neither about a magic plugin nor an obligation dictated by Google.
It’s a cross-functional project where UX, SEO, monetization, and technical strategy must converge.
The company must ask itself three questions: (1) Do my current pages already meet the Core Web Vitals?
(2) Do I have the resources to maintain two versions or should I aim for a single optimized code base?
(3) What tangible measured benefits (traffic, revenue, brand) justify the complexity?
By answering honestly, you define an action plan: pilot, monitoring, and continuous iteration.
Whether it’s a media outlet seeking retention, an e-merchant aiming for conversion, or a blogger
wishing to increase its reach, AMP can be an accelerator – provided it is integrated into an approach
overall performance and user experience.