Tools & Wizards About Us

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

el-spec.java.net

GitHub - javaee/el-spec: Expression Language 3.0 specification, JSR341

Page Load Speed

2.6 sec in total

First Response

631 ms

Resources Loaded

1.6 sec

Page Rendered

354 ms

About Website

Welcome to el-spec.java.net homepage info - get ready to check El Spec Java best content for China right away, or after learning these important things about el-spec.java.net

Expression Language 3.0 specification, JSR341. Contribute to javaee/el-spec development by creating an account on GitHub.

Visit el-spec.java.net

Key Findings

We analyzed El-spec.java.net page load time and found that the first response time was 631 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

el-spec.java.net performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

12/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

26/100

25%

SI (Speed Index)

Value7.9 s

22/100

10%

TBT (Total Blocking Time)

Value5,000 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value11.3 s

19/100

10%

Network Requests Diagram

el-spec

631 ms

light-5178aee0ee76.css

270 ms

dark-217d4f9c8e70.css

288 ms

primer-a8d2a8e3b2d5.css

284 ms

global-8b708e970131.css

416 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original El-spec.java.net, 6% (3 requests) were made to Avatars.githubusercontent.com and 2% (1 request) were made to Github.com. The less responsive or slowest element that took the longest time to load (766 ms) relates to the external source Github.githubassets.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 155.5 kB (51%)

Content Size

306.4 kB

After Optimization

150.9 kB

  • HTML
  • Images
  • CSS

In fact, the total size of El-spec.java.net main page is 306.4 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. 70% of websites need less resources to load. HTML takes 179.5 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 149.2 kB

  • Original 179.5 kB
  • After minification 170.4 kB
  • After compression 30.3 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 149.2 kB or 83% of the original size.

Image Optimization

-20%

Potential reduce by 1.3 kB

  • Original 6.5 kB
  • After minification 5.2 kB

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, El Spec Java needs image optimization as it can save up to 1.3 kB or 20% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-4%

Potential reduce by 5.0 kB

  • Original 120.4 kB
  • After minification 116.1 kB
  • After compression 115.4 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. El-spec.java.net has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 43 (90%)

Requests Now

48

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 48 CSS, Javascripts, AJAX and image requests in order to completely render the main page of El Spec Java. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 39 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

el-spec.java.net accessibility score

90

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

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

el-spec.java.net best practices score

92

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

Page has valid source maps

SEO Factors

el-spec.java.net SEO score

91

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 El-spec.java.net 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 El-spec.java.net 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

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