sisd.ae website review

3 files block the first paint until they finish downloading. Deferring or inlining them could save about 1.0 s.

8 third-party services load with your homepage (Google Tag Manager, commoninja.com and Dynatrace and others), adding 1.5 MB and 1.2 s of main-thread time.

About 823 KiB of JavaScript is downloaded but never used on this page. Google estimates it would make the page about 450 ms faster on a phone.

Your mobile performance score is 53. Pages that score under 90 lose visitors before the first paint.

Google Tag Manager costs a phone 860 ms of main-thread work and 801 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.

About 104 KiB of CSS is downloaded but never applied on this page. Google estimates it would make the page about 450 ms faster on a phone.

28 files are served with short cache lifetimes, so returning visitors download them again (223 KiB).

commoninja.com costs a phone 312 ms of main-thread work and 671 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.

A phone's processor spends 2.7 s on main-thread work while loading, 1.5 s of it running JavaScript. Above 2 s, taps and scrolls feel sluggish.

9 long tasks block the main thread while loading, the longest for 252 ms. During a long task the page ignores taps.

1 image could be 35 KiB smaller with modern formats (WebP or AVIF) and sizes that fit a phone screen. Google estimates it would make the page about 150 ms faster on a phone.

Polyfills for old browsers add 7 KiB JavaScript that modern phones do not need.

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

Real Chrome users on phones do not pass Google's Core Web Vitals on this page (28-day field data from the Chrome UX Report (opens in a new tab)). Google uses this in ranking.

Real visitors see the first content after 3.1 s (75th percentile). Good is under 1.8 s.

The page becomes fully interactive after 14.9 s. Good is under 3.8 s.

Your largest element takes 5.7 s to render on a phone. Google's threshold for “good” is 2.5 s. The largest element is the element shown below.

Scripts block taps and scrolling for 926 ms in total while the page loads. Good is under 200 ms.

Real visitors wait 3.1 s for the largest content to appear (75th percentile). Good is under 2.5 s.

Real visitors wait 373 ms for the page to respond to a tap (75th percentile). Good is under 200 ms.

Real visitors wait 1.7 s for your server to start answering (75th percentile). Good is under 800 ms.

Visually, the page fills in at 5.3 s (Speed Index). Good is under 3.4 s.

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

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' tap response (inp) went from 286 ms to 298 ms at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Over the last 25 four-week periods to 2026-10-31, real Chrome visitors' largest content (lcp) went from 3.4 s to 3.0 s at the 75th percentile (Chrome UX Report (opens in a new tab) history).

Your homepage downloads 13.2 MB in 92 requests on a phone: media 10.8 MB (1), scripts 1.9 MB (48) and fonts 210 KiB (4). Under 2 MB keeps phones on slow connections fast.

By the Sustainable Web Design model, a visit to your homepage emits about 3.75 g of CO₂e: 450.4 kg a year at 10,000 visits a month. It scales with page weight, so every byte cut lowers it.

1 image has no alt text, which hurts accessibility and image search.

45 text elements don't have enough contrast against the background to read easily, especially outdoors on a phone.

2 form fields have no label, so screen readers announce an empty box and autofill guesses.

Elements with visible text labels do not have matching accessible names. (12 elements).

The homepage links to 135 pages on sisd.ae and 19 external pages.

There is no https://www.nordangliaeducation.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://www.nordangliaeducation.com/sisd-dubai/admissions/online-application-form is marked noindex but linked from your homepage. If it is meant to be found, remove the noindex.

https://www.nordangliaeducation.com/sisd-dubai and https://www.nordangliaeducation.com/sisd-dubai/admissions/online-application-form all use the title “Swiss International Scientific School Dubai”. Search engines can't tell which page to show for a search, so each competes with the others.

https://www.nordangliaeducation.com/sisd-dubai/admissions/online-application-form has no meta description, so Google writes the search snippet from whatever text it finds.

https://www.nordangliaeducation.com/sisd-dubai/admissions/online-application-form has no <h1> headline, so visitors and search engines get no clear main topic.

https://www.nordangliaeducation.com/sisd-dubai/academic-excellence/ibcp and https://www.nordangliaeducation.com/sisd-dubai/academic-excellence/bilingualism took over 3 s to send their HTML from our server.

We fetched 15 pages linked from your homepage (of 49 found) and read each the way a search engine does.

1 error was logged to the browser console while the page loaded, for example “Failed to load resource: net::ERR_FAILED”.

Large scripts ship without source maps.

Social proof on the homepage: 13 testimonial or review blocks. Pairing it with named testimonials or customer logos makes it far more convincing.

There is no link to Google or Apple Maps. A directions link is one tap for a phone visitor.

The homepage carries about 1,335 words of visible text.

Before a visitor clicks anything, the page loads Google Ads, Google Analytics and Google Tag Manager (measured from a US location before any click). No consent tool was detected. Visitors from the EU, UK and several US states must be asked first.

Opening the homepage sets 11 cookies (measured from a US location before any click).

No known cookie consent tool loads with the page. Some sites build their own banner, and some only show one to visitors from the EU.

Loading the homepage contacts 10 hosts run by other companies (fonts, scripts, analytics, ads), each of which sees the visitor's IP address.