Tools & Wizards About Us
jfcsholocaustcenter.org screenshot

Report Summary

  • 35

    Performance

    Renders faster than
    55% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

jfcsholocaustcenter.org

JFCS Holocaust Center - Northern California's Primary Resource

Page Load Speed

2.3 sec in total

First Response

122 ms

Resources Loaded

1.6 sec

Page Rendered

589 ms

jfcsholocaustcenter.org screenshot

About Website

Click here to check amazing JFCS Holocaust Center content for United States. Otherwise, check out these important facts you probably never knew about jfcsholocaustcenter.org

JFCS Holocaust Center is Northern California’s primary resource for education about the Holocaust and other genocides.

Visit jfcsholocaustcenter.org

Key Findings

We analyzed Jfcsholocaustcenter.org page load time and found that the first response time was 122 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

jfcsholocaustcenter.org performance score

35

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value8.4 s

0/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value10.8 s

6/100

10%

TBT (Total Blocking Time)

Value450 ms

63/100

30%

CLS (Cumulative Layout Shift)

Value0.009

100/100

15%

TTI (Time to Interactive)

Value29.5 s

0/100

10%

Network Requests Diagram

jfcsholocaustcenter.org

122 ms

holocaustcenter.jfcs.org

331 ms

animations.css

49 ms

select2.min.css

61 ms

iconfonts.css

66 ms

Our browser made a total of 162 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Jfcsholocaustcenter.org, 85% (138 requests) were made to Holocaustcenter.jfcs.org and 12% (19 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (456 ms) relates to the external source Widget.usersnap.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 571.6 kB (9%)

Content Size

6.7 MB

After Optimization

6.1 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Jfcsholocaustcenter.org main page is 6.7 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. Only a small number of websites need less resources to load. Images take 6.3 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 200.1 kB

  • Original 235.1 kB
  • After minification 229.4 kB
  • After compression 35.0 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 200.1 kB or 85% of the original size.

Image Optimization

-6%

Potential reduce by 371.5 kB

  • Original 6.3 MB
  • After minification 6.0 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. JFCS Holocaust Center images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 113.2 kB
  • After minification 113.2 kB
  • After compression 113.2 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.

Requests Breakdown

Number of requests can be reduced by 110 (82%)

Requests Now

134

After Optimization

24

  • Images
  • JavaScript
  • CSS

The browser has sent 134 CSS, Javascripts, AJAX and image requests in order to completely render the main page of JFCS Holocaust Center. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 56 to 1 for JavaScripts and from 56 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jfcsholocaustcenter.org

jfcsholocaustcenter.org

122 ms

holocaustcenter.jfcs.org

holocaustcenter.jfcs.org

331 ms

animations.css

animations.css

49 ms

select2.min.css

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61 ms

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66 ms

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74 ms

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106 ms

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55 ms

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108 ms

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357 ms

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349 ms

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341 ms

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328 ms

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456 ms

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158 ms

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163 ms

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243 ms

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270 ms

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244 ms

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Accessibility Review

jfcsholocaustcenter.org accessibility score

82

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-*] attributes do not match their roles

High

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

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

Buttons do not have an accessible name

High

Links do not have a discernible name

Best Practices

jfcsholocaustcenter.org best practices score

83

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

jfcsholocaustcenter.org SEO score

84

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

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 Jfcsholocaustcenter.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 Jfcsholocaustcenter.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

jfcsholocaustcenter.org

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