Tools & Wizards About Us
nationalgallery.sg screenshot

Report Summary

  • 10

    Performance

    Renders faster than
    23% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

nationalgallery.sg

Southeast Asian Art Museum | National Gallery Singapore

Page Load Speed

7.4 sec in total

First Response

54 ms

Resources Loaded

7 sec

Page Rendered

307 ms

nationalgallery.sg screenshot

About Website

Welcome to nationalgallery.sg homepage info - get ready to check National Gallery best content for Singapore right away, or after learning these important things about nationalgallery.sg

Experience the world's largest public display of modern Southeast Asian art at the National Gallery Singapore

Visit nationalgallery.sg

Key Findings

We analyzed Nationalgallery.sg page load time and found that the first response time was 54 ms and then it took 7.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

nationalgallery.sg performance score

10

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value19.1 s

0/100

25%

SI (Speed Index)

Value14.7 s

1/100

10%

TBT (Total Blocking Time)

Value3,340 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.633

9/100

15%

TTI (Time to Interactive)

Value12.5 s

14/100

10%

Network Requests Diagram

nationalgallery.sg

54 ms

www.nationalgallery.sg

2586 ms

style.css

817 ms

thegallery.css

1093 ms

sumoselect.css

64 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 65% of them (44 requests) were addressed to the original Nationalgallery.sg, 4% (3 requests) were made to Gstatic.com and 3% (2 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (3 sec) belongs to the original domain Nationalgallery.sg.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (8%)

Content Size

14.0 MB

After Optimization

12.8 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nationalgallery.sg main page is 14.0 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 65% of websites need less resources to load. Images take 13.3 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 84.4 kB

  • Original 107.3 kB
  • After minification 93.8 kB
  • After compression 22.8 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 13.5 kB, which is 13% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 84.4 kB or 79% of the original size.

Image Optimization

-8%

Potential reduce by 1.0 MB

  • Original 13.3 MB
  • After minification 12.3 MB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. National Gallery images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 14.8 kB

  • Original 474.7 kB
  • After minification 474.6 kB
  • After compression 459.8 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. This website has mostly compressed JavaScripts.

CSS Optimization

-19%

Potential reduce by 18.5 kB

  • Original 96.4 kB
  • After minification 96.4 kB
  • After compression 77.9 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Nationalgallery.sg needs all CSS files to be minified and compressed as it can save up to 18.5 kB or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 33 (50%)

Requests Now

66

After Optimization

33

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 66 CSS, Javascripts, AJAX and image requests in order to completely render the main page of National Gallery. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nationalgallery.sg

nationalgallery.sg

54 ms

www.nationalgallery.sg

www.nationalgallery.sg

2586 ms

style.css

style.css

817 ms

thegallery.css

thegallery.css

1093 ms

sumoselect.css

sumoselect.css

64 ms

jquery-3.7.1.min.js

jquery-3.7.1.min.js

1352 ms

jquery-migrate-1.4.1.min.js

jquery-migrate-1.4.1.min.js

1163 ms

slick.min.js

slick.min.js

1591 ms

api.js

api.js

71 ms

pinit.js

pinit.js

54 ms

addthis_widget.js

addthis_widget.js

92 ms

plugins.min.js

plugins.min.js

2367 ms

main.min.js

main.min.js

1347 ms

thegallery.js

thegallery.js

1373 ms

jquery.sumoselect.min.js

jquery.sumoselect.min.js

1398 ms

i9s19m13a1i9l12.js

i9s19m13a1i9l12.js

1658 ms

js

js

140 ms

api.js

api.js

402 ms

gtm-tracking.js

gtm-tracking.js

1657 ms

LightningBolt.js

LightningBolt.js

120 ms

vcd15cbe7772f49c399c6a5babf22c1241717689176015

vcd15cbe7772f49c399c6a5babf22c1241717689176015

105 ms

oct.js

oct.js

11 ms

gtm.js

gtm.js

67 ms

deco-sprite.png

deco-sprite.png

771 ms

logo.gif

logo.gif

546 ms

sprite-revamp.png

sprite-revamp.png

739 ms

logodonate2.png

logodonate2.png

782 ms

donate-now2.png

donate-now2.png

779 ms

left_arrow_normal.png

left_arrow_normal.png

814 ms

arrow_placeholder.png

arrow_placeholder.png

1011 ms

right_arrow_normal.png

right_arrow_normal.png

1045 ms

textured-bg.jpg

textured-bg.jpg

1569 ms

index-masthead-placeholder.png

index-masthead-placeholder.png

1065 ms

Picturing-a-Candle-Figment_featured_0.jpg

Picturing-a-Candle-Figment_featured_0.jpg

1821 ms

www.nationalgallery.sg

www.nationalgallery.sg

2983 ms

index-whats-on-placeholder.png

index-whats-on-placeholder.png

1318 ms

footer-google-play.png

footer-google-play.png

1422 ms

footer-app-store.png

footer-app-store.png

1512 ms

login-facebook.jpg

login-facebook.jpg

1592 ms

sdk.js

sdk.js

20 ms

sdk.js

sdk.js

6 ms

59 ms

recaptcha__en.js

recaptcha__en.js

24 ms

pinit_main.js

pinit_main.js

54 ms

player.min.js

player.min.js

1395 ms

mapping.js

mapping.js

31 ms

adsct

adsct

143 ms

adsct

adsct

174 ms

fallback

fallback

92 ms

discover-exhibitions-masthead.jpg

discover-exhibitions-masthead.jpg

813 ms

National-Gallery-Singapore_Former-Supreme-Court.png

National-Gallery-Singapore_Former-Supreme-Court.png

879 ms

20240325_JO3_8036_HIGHRES.jpg

20240325_JO3_8036_HIGHRES.jpg

928 ms

414A0343.jpg

414A0343.jpg

1726 ms

NGS-Homepage-Carousel2.png

NGS-Homepage-Carousel2.png

1423 ms

Installation-view-of-GLISTEN-wall-with-Songket-patterns-National-Gallery-Singapore-2024.jpg

Installation-view-of-GLISTEN-wall-with-Songket-patterns-National-Gallery-Singapore-2024.jpg

1094 ms

keppelcentre-highlights.jpg

keppelcentre-highlights.jpg

1152 ms

tours-for-all-highlight-img.jpg

tours-for-all-highlight-img.jpg

1203 ms

ngs-highlights-venice-biennale-2024.jpg

ngs-highlights-venice-biennale-2024.jpg

1374 ms

fas-highlights-img.jpg

fas-highlights-img.jpg

1425 ms

ngs-home-aug-4.png

ngs-home-aug-4.png

1489 ms

Members_0.jpeg

Members_0.jpeg

1649 ms

ngs-home-highlights_online-courses.jpg

ngs-home-highlights_online-courses.jpg

1686 ms

ng-ar-21.jpg

ng-ar-21.jpg

1697 ms

ARText_Highlights-Section_2.png

ARText_Highlights-Section_2.png

1768 ms

fallback__ltr.css

fallback__ltr.css

6 ms

css

css

37 ms

logo_48.png

logo_48.png

5 ms

font

font

18 ms

Accessibility Review

nationalgallery.sg accessibility score

74

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-hidden="true"] elements contain focusable descendents

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

nationalgallery.sg best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

nationalgallery.sg SEO score

71

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

Page is blocked from indexing

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nationalgallery.sg can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Nationalgallery.sg main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

nationalgallery.sg

Open Graph data is detected on the main page of National Gallery. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: