sonaesierra.com website review

31 files block the first paint until they finish downloading. Deferring or inlining them could save about 6.5 s.

About 669 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 3.3 s faster on a phone.

5 files are served with short cache lifetimes, so returning visitors download them again (403 KiB).

About 1.3 MB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 1.2 s faster on a phone.

Your mobile performance score is 56. Pages that score under 90 lose visitors before the first paint.

489 KiB could be saved by minifying JavaScript.

7 third-party services load with your homepage (Google Tag Manager, Cookiebot and Google CDN and others), adding 1.1 MB and 406 ms of main-thread time.

Google Tag Manager costs a phone 214 ms of main-thread work and 469 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

Google Maps costs a phone 0 ms of main-thread work and 392 KiB of downloads while your page loads. Loading it after the page is usable, or only on the pages that need it, takes that off the critical path.

3 long tasks block the main thread while loading, the longest for 174 ms. During a long task the page ignores taps.

7 KiB could be saved by minifying CSS.

Web fonts hide text while they load. Setting font-display: swap shows text immediately (about 100 ms).

1 image could be 32 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen.

Critical files load one after another instead of in parallel (3 chains). Preconnecting to key origins and preloading the hero image shortens the chain.

Your largest element takes 20.4 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the text “We use cookies to personalise content and ads, to provide s…”.

The first text or image appears after 7.5 s on a phone. Good is under 1.8 s.

The page becomes fully interactive after 20.4 s. Good is under 3.8 s.

Visually, the page fills in at 7.5 s (Speed Index). Good is under 3.4 s.

1 image have no width and height attributes, so the layout jumps as each one loads.

Chrome's UX Report (opens in a new tab) has too little real-visitor traffic for this site, so the figures here are lab measurements from Google's test phone on a throttled 4G connection.

Your homepage downloads 5.6 MB in 90 requests on a phone: scripts 3.9 MB (72), images 905 KiB (3) and stylesheets 728 KiB (8). Under 2 MB keeps phones on slow connections fast.

id-sonae-sierra.svg weighs 752 KiB. On a phone connection a single image that size takes seconds.

Banner-paginas-website-11-768x429.png.webp is on the first screen but marked loading="lazy", so the browser waits before fetching it and the page looks finished later. Load it eagerly (and give it fetchpriority="high" if it is the main image).

1 image further down the page (102 KiB) download before anyone scrolls to it. Adding loading="lazy" lets the first screen load first.

By the Sustainable Web Design model, a visit to your homepage emits about 1.60 g of CO₂e: 191.6 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

Elements must only use permitted ARIA attributes: 2 elements on the page fail this check, rated serious by axe-core.

Scrollable region must have keyboard access: 1 element on the page fails this check, rated serious by axe-core.

All page content should be contained by landmarks: 43 elements on the page fail this check, rated moderate by axe-core.

Heading levels should only increase by one: 1 element on the page fails this check, rated moderate by axe-core.

The page has no <main> landmark, so screen-reader users cannot jump straight to the content.

1 form field has no label, so screen readers announce an empty box and autofill guesses.

Headings should not be empty: 4 elements on the page fail this check, rated minor by axe-core.

Your meta description is only 48 characters: “We pursue an integrated approach to real estate.”. 70 to 160 characters is enough to sell the click.

Structured data found (BreadcrumbList, ImageObject, WebPage and WebSite) but with 3 problems, for example “WebPage: thumbnailUrl is not an absolute URL ("https://sonaesierra.com/wp-content/uploads/2023/01/SIERRA_PEOPLE_1x1_thumb1…”.

No XML sitemap at https://sonaesierra.com/sitemap.xml, so Google discovers your pages only by following links.

9 links use generic text like “click here” or “learn more”, which tells Google nothing about the page behind them.

The homepage links to 99 pages on sonaesierra.com and 9 external pages.

There is no Organization (or LocalBusiness) JSON-LD, so search engines and AI assistants have no machine-readable facts about who runs the site: its name, logo, profiles and contact details.

There is no https://sonaesierra.com/llms.txt, a short Markdown guide to your key pages for AI tools (llmstxt.org). It is optional and few AI tools read it yet, so treat it as a cheap extra.

/, https://sonaesierra.com/pt, https://sonaesierra.com/es, https://sonaesierra.com/de, https://sonaesierra.com/fr and https://sonaesierra.com/it all use the title “Sonae Sierra | Open mind Greater value”. Search engines can't tell which page to show for a search, so each competes with the others.

https://sonaesierra.com/personal-data-protection-commitment and https://sonaesierra.com/cookie-declaration use the same meta description. A description written for each page earns more clicks.

https://sonaesierra.com/pt, https://sonaesierra.com/es, https://sonaesierra.com/de, https://sonaesierra.com/fr, https://sonaesierra.com/it and https://sonaesierra.com/reports-posts/economic-environmental-and-social-report-2025 have no <h1> headline, so visitors and search engines get no clear main topic.

https://sonaesierra.com/cookie-declaration has under 150 words in the HTML. Thin pages rarely rank; if the text loads with JavaScript, crawlers that don't run it see even less.

We fetched 15 pages linked from your homepage (of 62 found) and read each the way a search engine does.

13 of 30 tappable elements near the top of the page are smaller than 24 px, hard to hit with a thumb.

2 errors were logged to the browser console while the page loaded, for example “Access to XMLHttpRequest at 'https://www.sonaesierra.com/wp-includes/css/dist/block-library/style.min.css?ver=6.9.10' f…”.

The page has no <!DOCTYPE html>, so browsers render it in quirks mode.

Large scripts ship without source maps.

Social proof on the homepage: a star rating. Pairing it with named testimonials or customer logos makes it far more convincing.

No phone number or email link on the homepage, so ready-to-buy visitors have one fewer way to reach you.

There is no form on the homepage, so every lead has to click through to another page first.

No guarantee or risk reducer (money-back, free trial, no credit card) is mentioned, which is often what tips a hesitant visitor.

The homepage carries about 857 words of visible text.

Before a visitor clicks anything, the page loads Google Analytics and Google Tag Manager (measured from a US location before any click). A consent tool (Cookiebot) is installed; check it blocks these until visitors agree where the law requires it.

Opening the homepage sets 2 cookies (measured from a US location before any click).

Loading the homepage contacts 8 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.