Tools & Wizards About Us
jpnarts.org screenshot

Report Summary

  • 82

    Performance

    Renders faster than
    87% of other websites

  • 59

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

jpnarts.org

Japanese Art & Cultural Center, San Jose, CA - Home

Page Load Speed

7.4 sec in total

First Response

232 ms

Resources Loaded

6.5 sec

Page Rendered

699 ms

jpnarts.org screenshot

About Website

Welcome to jpnarts.org homepage info - get ready to check Jpn Art S best content right away, or after learning these important things about jpnarts.org

JACC is a place to learn traditional Japanese Martial Arts and Fine Arts including Karate (Shotokan), Kendo, Aikido, Kyudo, Iaido and more.

Visit jpnarts.org

Key Findings

We analyzed Jpnarts.org page load time and found that the first response time was 232 ms and then it took 7.2 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

jpnarts.org performance score

82

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

57/100

25%

SI (Speed Index)

Value4.3 s

75/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.8 s

97/100

10%

Network Requests Diagram

jpnarts.org

232 ms

css

23 ms

user.js

107 ms

jquery.js

673 ms

simplegallery.js

122 ms

Our browser made a total of 65 requests to load all elements on the main page. We found that 92% of them (60 requests) were addressed to the original Jpnarts.org, 2% (1 request) were made to Fonts.googleapis.com and 2% (1 request) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (5 sec) belongs to the original domain Jpnarts.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 72.5 kB (2%)

Content Size

3.0 MB

After Optimization

2.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jpnarts.org main page is 3.0 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. 35% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 57.1 kB

  • Original 67.9 kB
  • After minification 67.1 kB
  • After compression 10.8 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. 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 57.1 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 251 B

  • Original 2.9 MB
  • After minification 2.9 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. Jpn Art S images are well optimized though.

JavaScript Optimization

-31%

Potential reduce by 12.8 kB

  • Original 41.6 kB
  • After minification 41.6 kB
  • After compression 28.9 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 12.8 kB or 31% of the original size.

CSS Optimization

-43%

Potential reduce by 2.3 kB

  • Original 5.4 kB
  • After minification 5.4 kB
  • After compression 3.1 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. Jpnarts.org needs all CSS files to be minified and compressed as it can save up to 2.3 kB or 43% of the original size.

Requests Breakdown

Number of requests can be reduced by 8 (14%)

Requests Now

59

After Optimization

51

  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jpn Art S. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jpnarts.org

jpnarts.org

232 ms

css

css

23 ms

user.js

user.js

107 ms

jquery.js

jquery.js

673 ms

simplegallery.js

simplegallery.js

122 ms

photo_album.js

photo_album.js

353 ms

PrebuiltBlockStructure.css

PrebuiltBlockStructure.css

322 ms

template.css

template.css

149 ms

layout1.css

layout1.css

203 ms

website.css

website.css

183 ms

icwebsiteelement.css

icwebsiteelement.css

250 ms

PrebuiltBlockStructure.css

PrebuiltBlockStructure.css

270 ms

addthis_widget.js

addthis_widget.js

11 ms

badge.js

badge.js

2484 ms

30b

30b

65 ms

header_bg.jpg

header_bg.jpg

110 ms

77_jacc_logo_with_japanese_478x500.jpg

77_jacc_logo_with_japanese_478x500.jpg

109 ms

94_dove1.jpg

94_dove1.jpg

111 ms

270_Shodo_Class_flyer.jpg

270_Shodo_Class_flyer.jpg

293 ms

218_JACC_gate_sign.jpg

218_JACC_gate_sign.jpg

349 ms

258_JACC_MartialArt_classes_2024.jpg

258_JACC_MartialArt_classes_2024.jpg

521 ms

258_shomen-1.jpg

258_shomen-1.jpg

281 ms

235_JACC_instructors_and_volunteers.jpg

235_JACC_instructors_and_volunteers.jpg

760 ms

539_JACC_iaido_class_2018.jpg

539_JACC_iaido_class_2018.jpg

574 ms

539_Zazen_photo.JPG

539_Zazen_photo.JPG

496 ms

539_IMAG0305.jpg

539_IMAG0305.jpg

1496 ms

539_kihon_practice.JPG

539_kihon_practice.JPG

558 ms

539_IMG_9678.JPG

539_IMG_9678.JPG

1297 ms

539_IMG_9676.JPG

539_IMG_9676.JPG

803 ms

539_Kyudo_image-1.jpg

539_Kyudo_image-1.jpg

1032 ms

539_Kyudo_class_photo.JPG

539_Kyudo_class_photo.JPG

1554 ms

539_IMG_9687.JPG

539_IMG_9687.JPG

1516 ms

539_IMG_9691.JPG

539_IMG_9691.JPG

1653 ms

539_IMG_9694.JPG

539_IMG_9694.JPG

1374 ms

539_cleaning-up.jpg

539_cleaning-up.jpg

1886 ms

250_Dojo_photo-1.jpg

250_Dojo_photo-1.jpg

2722 ms

250_JACC_entrance.jpg

250_JACC_entrance.jpg

1689 ms

250_2017_summer_festival.jpg

250_2017_summer_festival.jpg

3114 ms

250__22799_31085_12426_2014_65288_39080_33337_37347_12426_65289_.jpg

250__22799_31085_12426_2014_65288_39080_33337_37347_12426_65289_.jpg

1901 ms

250_IMG_9644.JPG

250_IMG_9644.JPG

1962 ms

250_JACC_OpenHouse_2013-09-01.006.jpg

250_JACC_OpenHouse_2013-09-01.006.jpg

1970 ms

250_IMG_9688.JPG

250_IMG_9688.JPG

2748 ms

250_JACC_Halloween_photo_2010_2.jpg

250_JACC_Halloween_photo_2010_2.jpg

2158 ms

250_child_photo.JPG

250_child_photo.JPG

2548 ms

250_karate_group_photo-1.JPG

250_karate_group_photo-1.JPG

3462 ms

250_karate_funny_photo.JPG

250_karate_funny_photo.JPG

2474 ms

250_1010154.jpg

250_1010154.jpg

3191 ms

250_JACC_Poster_Artwork_MA.jpg

250_JACC_Poster_Artwork_MA.jpg

2912 ms

250_Classroom_photo.jpg

250_Classroom_photo.jpg

2998 ms

250_IMG_9642.JPG

250_IMG_9642.JPG

3309 ms

250_IMG_9638.JPG

250_IMG_9638.JPG

3746 ms

250_IMG_9646.JPG

250_IMG_9646.JPG

3537 ms

250_IMG_9649.JPG

250_IMG_9649.JPG

4396 ms

250_2011_Halloween_photo-1.jpg

250_2011_Halloween_photo-1.jpg

4056 ms

250_2016-10-23-Sensei-Paul--1.jpg

250_2016-10-23-Sensei-Paul--1.jpg

3449 ms

250_children_photo.JPG

250_children_photo.JPG

3720 ms

250_dojo_painting.jpg

250_dojo_painting.jpg

3904 ms

250_Karate_image_1.JPG

250_Karate_image_1.JPG

4999 ms

250_JACC_Poster_Artwork_FA.jpg

250_JACC_Poster_Artwork_FA.jpg

3634 ms

250_JACC_Poster_Musash.jpg

250_JACC_Poster_Musash.jpg

4337 ms

213_JACC_sign.jpg

213_JACC_sign.jpg

3725 ms

left_content_bg.jpg

left_content_bg.jpg

3692 ms

footer_bg.jpg

footer_bg.jpg

3598 ms

ss61726233675884

ss61726233675884

37 ms

print.css

print.css

64 ms

Accessibility Review

jpnarts.org accessibility score

59

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

jpnarts.org 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

jpnarts.org SEO score

62

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

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jpnarts.org can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Jpnarts.org main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

jpnarts.org

Open Graph description is not detected on the main page of Jpn Art S. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: