Tools & Wizards About Us
concordiashanghai.org screenshot

Report Summary

  • 2

    Performance

    Renders faster than
    20% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

concordiashanghai.org

Concordia International School Shanghai | P12 American Education

Page Load Speed

5.2 sec in total

First Response

258 ms

Resources Loaded

4.3 sec

Page Rendered

665 ms

concordiashanghai.org screenshot

About Website

Welcome to concordiashanghai.org homepage info - get ready to check Concordia Shanghai best content for China right away, or after learning these important things about concordiashanghai.org

Concordia is one of the Shanghai's top international schools, offering a holistic American education to students from Preschool to Grade 12.

Visit concordiashanghai.org

Key Findings

We analyzed Concordiashanghai.org page load time and found that the first response time was 258 ms and then it took 5 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

concordiashanghai.org performance score

2

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value17.0 s

0/100

25%

SI (Speed Index)

Value14.2 s

1/100

10%

TBT (Total Blocking Time)

Value2,650 ms

4/100

30%

CLS (Cumulative Layout Shift)

Value0.981

2/100

15%

TTI (Time to Interactive)

Value18.1 s

3/100

10%

Network Requests Diagram

concordiashanghai.org

258 ms

www.concordiashanghai.org

2087 ms

gtm.js

111 ms

gtm.js

210 ms

application-bce5d22b68b57b3828b229556241a394e69dd8de5abfa2a018868e63ffc6d9cc.css

241 ms

Our browser made a total of 30 requests to load all elements on the main page. We found that 37% of them (11 requests) were addressed to the original Concordiashanghai.org, 17% (5 requests) were made to Fonts.gstatic.com and 10% (3 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Concordiashanghai.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 112.8 kB (12%)

Content Size

969.7 kB

After Optimization

856.8 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Concordiashanghai.org main page is 969.7 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Javascripts take 732.0 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 106.6 kB

  • Original 127.0 kB
  • After minification 124.4 kB
  • After compression 20.3 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 106.6 kB or 84% of the original size.

JavaScript Optimization

-1%

Potential reduce by 6.2 kB

  • Original 732.0 kB
  • After minification 732.0 kB
  • After compression 725.8 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

-0%

Potential reduce by 0 B

  • Original 110.7 kB
  • After minification 110.7 kB
  • After compression 110.7 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. Concordiashanghai.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 19 (86%)

Requests Now

22

After Optimization

3

  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Concordia Shanghai. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

concordiashanghai.org

concordiashanghai.org

258 ms

www.concordiashanghai.org

www.concordiashanghai.org

2087 ms

gtm.js

gtm.js

111 ms

gtm.js

gtm.js

210 ms

application-bce5d22b68b57b3828b229556241a394e69dd8de5abfa2a018868e63ffc6d9cc.css

application-bce5d22b68b57b3828b229556241a394e69dd8de5abfa2a018868e63ffc6d9cc.css

241 ms

styles.cfm

styles.cfm

261 ms

main.css

main.css

80 ms

in_layout_head2-73f5b703a9352363cd8c423e976eae1fa1c206d1e456d555def0817fedae4217.js

in_layout_head2-73f5b703a9352363cd8c423e976eae1fa1c206d1e456d555def0817fedae4217.js

781 ms

weglot.min.js

weglot.min.js

61 ms

4619166.js

4619166.js

77 ms

js

js

236 ms

application-d0ae73b9982e07a48d326601717eda341e4fc980422a901374bafcda698e6823.js

application-d0ae73b9982e07a48d326601717eda341e4fc980422a901374bafcda698e6823.js

1455 ms

main.js

main.js

76 ms

vcd15cbe7772f49c399c6a5babf22c1241717689176015

vcd15cbe7772f49c399c6a5babf22c1241717689176015

100 ms

hm.js

hm.js

1042 ms

poweredby-7fe9cdfc8db6c2419477639e585e15f5fceee483b4a26452877dabab357cb391.svg

poweredby-7fe9cdfc8db6c2419477639e585e15f5fceee483b4a26452877dabab357cb391.svg

250 ms

leadflows.js

leadflows.js

155 ms

web-interactives-embed.js

web-interactives-embed.js

203 ms

4619166.js

4619166.js

175 ms

fb.js

fb.js

141 ms

4619166.js

4619166.js

222 ms

icomoon.woff

icomoon.woff

54 ms

webfontloader.js

webfontloader.js

39 ms

main.js

main.js

52 ms

css

css

81 ms

1Ptyg83HX_SGhgqO0yLcmjzUAuWexaFR8aevHg.ttf

1Ptyg83HX_SGhgqO0yLcmjzUAuWexaFR8aevHg.ttf

21 ms

1Ptyg83HX_SGhgqO0yLcmjzUAuWexZNR8aevHg.ttf

1Ptyg83HX_SGhgqO0yLcmjzUAuWexZNR8aevHg.ttf

80 ms

1Ptyg83HX_SGhgqO0yLcmjzUAuWexXRW8aevHg.ttf

1Ptyg83HX_SGhgqO0yLcmjzUAuWexXRW8aevHg.ttf

111 ms

1Ptyg83HX_SGhgqO0yLcmjzUAuWexTpW8aevHg.ttf

1Ptyg83HX_SGhgqO0yLcmjzUAuWexTpW8aevHg.ttf

112 ms

1Ptwg83HX_SGhgqk2hAjQlW_mEuZ0FsSKeOfGZQ_.ttf

1Ptwg83HX_SGhgqk2hAjQlW_mEuZ0FsSKeOfGZQ_.ttf

112 ms

Accessibility Review

concordiashanghai.org accessibility score

98

Accessibility Issues

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.

Best Practices

concordiashanghai.org best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

concordiashanghai.org SEO score

82

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

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

High

Tap targets are not sized appropriately

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 Concordiashanghai.org 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 Concordiashanghai.org 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

concordiashanghai.org

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