Tools & Wizards About Us
jcdsboston.org screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

jcdsboston.org

JCDS Boston's Jewish Community Day School | Home

Page Load Speed

998 ms in total

First Response

49 ms

Resources Loaded

785 ms

Page Rendered

164 ms

jcdsboston.org screenshot

About Website

Welcome to jcdsboston.org homepage info - get ready to check JCDS Boston best content for United States right away, or after learning these important things about jcdsboston.org

The mission of JCDS, Boston's Jewish Community Day School, is to provide a premier education that nurtures each student's capacity for intellectual discovery and decision-making within a respe...

Visit jcdsboston.org

Key Findings

We analyzed Jcdsboston.org page load time and found that the first response time was 49 ms and then it took 949 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

jcdsboston.org performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.3 s

7/100

10%

LCP (Largest Contentful Paint)

Value21.3 s

0/100

25%

SI (Speed Index)

Value11.2 s

5/100

10%

TBT (Total Blocking Time)

Value700 ms

42/100

30%

CLS (Cumulative Layout Shift)

Value0.415

23/100

15%

TTI (Time to Interactive)

Value10.7 s

22/100

10%

Network Requests Diagram

jcdsboston.org

49 ms

www.jcdsboston.org

191 ms

analytics.js

78 ms

gtm.js

176 ms

jquery.min.js

37 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 34% of them (27 requests) were addressed to the original Jcdsboston.org, 45% (36 requests) were made to D18hjk6wpn1fl5.cloudfront.net and 9% (7 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (284 ms) relates to the external source D18hjk6wpn1fl5.cloudfront.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 877.2 kB (23%)

Content Size

3.9 MB

After Optimization

3.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jcdsboston.org main page is 3.9 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.4 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 76.1 kB

  • Original 94.7 kB
  • After minification 92.0 kB
  • After compression 18.6 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 76.1 kB or 80% of the original size.

Image Optimization

-20%

Potential reduce by 687.5 kB

  • Original 3.4 MB
  • After minification 2.7 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. Obviously, JCDS Boston needs image optimization as it can save up to 687.5 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-32%

Potential reduce by 97.7 kB

  • Original 301.9 kB
  • After minification 301.9 kB
  • After compression 204.3 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 97.7 kB or 32% of the original size.

CSS Optimization

-17%

Potential reduce by 16.0 kB

  • Original 95.3 kB
  • After minification 89.9 kB
  • After compression 79.3 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. Jcdsboston.org needs all CSS files to be minified and compressed as it can save up to 16.0 kB or 17% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (56%)

Requests Now

68

After Optimization

30

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JCDS Boston. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 17 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jcdsboston.org

jcdsboston.org

49 ms

www.jcdsboston.org

www.jcdsboston.org

191 ms

analytics.js

analytics.js

78 ms

gtm.js

gtm.js

176 ms

jquery.min.js

jquery.min.js

37 ms

ajax.min.js

ajax.min.js

54 ms

details-page-tab-toggle.js

details-page-tab-toggle.js

68 ms

jquery.flexslider-min.js

jquery.flexslider-min.js

69 ms

flexslider.min.css

flexslider.min.css

74 ms

jquery-ui.min.js

jquery-ui.min.js

114 ms

jquery-ui-1.9.1.custom.css

jquery-ui-1.9.1.custom.css

108 ms

bootstrap.min.js

bootstrap.min.js

108 ms

bootstrap.min.css

bootstrap.min.css

113 ms

override.min.css

override.min.css

166 ms

checkout.css

checkout.css

174 ms

myaccount.css

myaccount.css

177 ms

font-awesome.min.css

font-awesome.min.css

181 ms

jquery.mousewheel-3.0.2.pack.js

jquery.mousewheel-3.0.2.pack.js

181 ms

jquery.fancybox-1.3.0.pack.js

jquery.fancybox-1.3.0.pack.js

177 ms

jquery.fancybox-1.3.0.css

jquery.fancybox-1.3.0.css

178 ms

jquery.dragsort-0.5.1.min.js

jquery.dragsort-0.5.1.min.js

178 ms

chosen.jquery.min.js

chosen.jquery.min.js

188 ms

chosen.css

chosen.css

193 ms

core.min.js

core.min.js

195 ms

checkout.js

checkout.js

195 ms

myaccount.js

myaccount.js

197 ms

jquery.zoom.min.js

jquery.zoom.min.js

190 ms

css

css

171 ms

css

css

183 ms

Current-magnific-popup_css-323-30680-1.css

Current-magnific-popup_css-323-30680-1.css

215 ms

Current-magnificpopup-javascript_js-323-30681-1.js

Current-magnificpopup-javascript_js-323-30681-1.js

187 ms

Current-flexslider_css-323-31256-1.css

Current-flexslider_css-323-31256-1.css

183 ms

Current-jquery_flexslider-min_js-323-31257-1.js

Current-jquery_flexslider-min_js-323-31257-1.js

173 ms

shadowbox.css

shadowbox.css

213 ms

shadowbox.js

shadowbox.js

214 ms

Current-mapresizer_js-323-47738-1.js

Current-mapresizer_js-323-47738-1.js

186 ms

all.css

all.css

168 ms

Current-slick_css_css-323-49712-1.css

Current-slick_css_css-323-49712-1.css

181 ms

Current-slick_theme_css-323-49713-1.css

Current-slick_theme_css-323-49713-1.css

231 ms

Current-slick_min_js_js-323-49714-1.js

Current-slick_min_js_js-323-49714-1.js

232 ms

collect

collect

77 ms

collect

collect

93 ms

logo-new20160317095707.png

logo-new20160317095707.png

139 ms

tashlich_cover20180619135734.jpeg

tashlich_cover20180619135734.jpeg

134 ms

banner-ride-bus20191003061450.jpeg

banner-ride-bus20191003061450.jpeg

135 ms

nadav_cover20180619135731.jpeg

nadav_cover20180619135731.jpeg

138 ms

banner-home-connect20200917093323.jpeg

banner-home-connect20200917093323.jpeg

135 ms

connect-facebook20160406044234.png

connect-facebook20160406044234.png

99 ms

connect-twitter20160406044235.png

connect-twitter20160406044235.png

149 ms

connect-instagram20160406044234.png

connect-instagram20160406044234.png

167 ms

connect-vimeo20160406044236.png

connect-vimeo20160406044236.png

159 ms

connect-b20160406044234.png

connect-b20160406044234.png

172 ms

donate20160316085805.png

donate20160316085805.png

151 ms

apply20160316085805.png

apply20160316085805.png

165 ms

tour20160316085806.png

tour20160316085806.png

180 ms

contact20160316085805.png

contact20160316085805.png

181 ms

footer-facebook20160316055037.png

footer-facebook20160316055037.png

209 ms

footer-twitter20160316055039.png

footer-twitter20160316055039.png

191 ms

footer-instagram20160316055037.png

footer-instagram20160316055037.png

197 ms

footer-vimeo20160316055039.png

footer-vimeo20160316055039.png

203 ms

footer-b20160316055036.png

footer-b20160316055036.png

213 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4gaVQ.woff

70 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4gaVQ.woff

79 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1x4gaVQ.woff

78 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4gaVQ.woff

82 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVQ.woff

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgshZ1x4gaVQ.woff

81 ms

menu-img20160411092210.jpeg

menu-img20160411092210.jpeg

193 ms

img-edu-prog20160504061154.jpeg

img-edu-prog20160504061154.jpeg

221 ms

img-pluralism20160504061157.jpeg

img-pluralism20160504061157.jpeg

284 ms

img-school-com20160504061157.jpeg

img-school-com20160504061157.jpeg

262 ms

img-admissions20160504061154.jpeg

img-admissions20160504061154.jpeg

259 ms

img-support20160504061158.jpeg

img-support20160504061158.jpeg

251 ms

sdk.js

sdk.js

67 ms

z7NFdQDnbTkabZAIOl9il_O6KJj73e7Ff0GmDuXMQQ.woff

z7NFdQDnbTkabZAIOl9il_O6KJj73e7Ff0GmDuXMQQ.woff

66 ms

z7NFdQDnbTkabZAIOl9il_O6KJj73e7Ff1GhDuXMQQ.woff

z7NFdQDnbTkabZAIOl9il_O6KJj73e7Ff1GhDuXMQQ.woff

73 ms

collect

collect

52 ms

flexslider-icon.woff

flexslider-icon.woff

163 ms

sdk.js

sdk.js

11 ms

flexslider-icon.ttf

flexslider-icon.ttf

12 ms

flexslider-icon.svg

flexslider-icon.svg

28 ms

Accessibility Review

jcdsboston.org accessibility score

81

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

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

jcdsboston.org best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

jcdsboston.org SEO score

90

Search Engine Optimization Advices

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 Jcdsboston.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 Jcdsboston.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

jcdsboston.org

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