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jec-p.org screenshot

Report Summary

  • 53

    Performance

    Renders faster than
    70% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

jec-p.org

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Page Load Speed

1.2 sec in total

First Response

106 ms

Resources Loaded

829 ms

Page Rendered

308 ms

jec-p.org screenshot

About Website

Welcome to jec-p.org homepage info - get ready to check Jec P best content right away, or after learning these important things about jec-p.org

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Visit jec-p.org

Key Findings

We analyzed Jec-p.org page load time and found that the first response time was 106 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

jec-p.org performance score

53

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

58/100

25%

SI (Speed Index)

Value3.6 s

87/100

10%

TBT (Total Blocking Time)

Value1,000 ms

27/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

jec-p.org

106 ms

bootstrap.min.css

84 ms

slick.css

75 ms

slick-theme.css

98 ms

style.css

77 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 69% of them (25 requests) were addressed to the original Jec-p.org, 19% (7 requests) were made to Unpkg.com and 3% (1 request) were made to Polyfill.io. The less responsive or slowest element that took the longest time to load (452 ms) relates to the external source Polyfill.io.

Page Optimization Overview & Recommendations

Page size can be reduced by 58.0 kB (16%)

Content Size

364.9 kB

After Optimization

307.0 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jec-p.org main page is 364.9 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. 60% of websites need less resources to load. Javascripts take 201.6 kB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 45.1 kB

  • Original 49.8 kB
  • After minification 25.0 kB
  • After compression 4.7 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 24.8 kB, which is 50% 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 45.1 kB or 91% of the original size.

Image Optimization

-26%

Potential reduce by 146 B

  • Original 565 B
  • After minification 419 B

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, Jec P needs image optimization as it can save up to 146 B or 26% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 1.8 kB

  • Original 201.6 kB
  • After minification 201.6 kB
  • After compression 199.8 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

-10%

Potential reduce by 10.8 kB

  • Original 112.9 kB
  • After minification 112.9 kB
  • After compression 102.1 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. Jec-p.org has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 27 (87%)

Requests Now

31

After Optimization

4

  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jec P. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jec-p.org

jec-p.org

106 ms

bootstrap.min.css

bootstrap.min.css

84 ms

slick.css

slick.css

75 ms

slick-theme.css

slick-theme.css

98 ms

style.css

style.css

77 ms

nice-select.css

nice-select.css

95 ms

animate.css

animate.css

112 ms

jquery.mCustomScrollbar.min.css

jquery.mCustomScrollbar.min.css

122 ms

ionicons.min.css

ionicons.min.css

124 ms

style-main.css

style-main.css

209 ms

responsive.css

responsive.css

144 ms

mathlive

mathlive

78 ms

polyfill.min.js

polyfill.min.js

452 ms

tex-mml-chtml.js

tex-mml-chtml.js

70 ms

jquery-3.5.1.min.js

jquery-3.5.1.min.js

171 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

188 ms

pre-loader.js

pre-loader.js

163 ms

jquery.parallax-scroll.js

jquery.parallax-scroll.js

168 ms

jquery.nice-select.min.js

jquery.nice-select.min.js

204 ms

wow.min.js

wow.min.js

222 ms

jquery.mCustomScrollbar.concat.min.js

jquery.mCustomScrollbar.concat.min.js

222 ms

ionicons.js

ionicons.js

72 ms

jquery.magnific-popup.min.js

jquery.magnific-popup.min.js

221 ms

plugins.js

plugins.js

230 ms

ionicons.js

ionicons.js

59 ms

main.js

main.js

249 ms

theme.js

theme.js

286 ms

3.4.1

3.4.1

17 ms

mathlive@0.98.6

mathlive@0.98.6

17 ms

mathlive.min.js

mathlive.min.js

22 ms

css2

css2

30 ms

hashtag.svg

hashtag.svg

74 ms

question-1.png

question-1.png

70 ms

ElegantIcons.woff

ElegantIcons.woff

109 ms

ionicons.js

ionicons.js

14 ms

ionicons.js

ionicons.js

25 ms

Accessibility Review

jec-p.org accessibility score

87

Accessibility Issues

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

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

jec-p.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

jec-p.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

    ZH

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jec-p.org can be misinterpreted by Google and other search engines. Our service has detected that Chinese is used on the page, and it does not match the claimed English language. Our system also found out that Jec-p.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

jec-p.org

Open Graph description is not detected on the main page of Jec P. 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: