Tools & Wizards About Us

Report Summary

  • 94

    Performance

    Renders faster than
    93% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 50

    SEO

    Google-friendlier than
    18% of websites

javascript-source.com

Javascript Obfuscator - Stop theft of your JavaScript sources!

Page Load Speed

1.5 sec in total

First Response

238 ms

Resources Loaded

975 ms

Page Rendered

261 ms

About Website

Visit javascript-source.com now to see the best up-to-date Javascript Source content for United States and also check out these interesting facts you probably never knew about javascript-source.com

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Key Findings

We analyzed Javascript-source.com page load time and found that the first response time was 238 ms and then it took 1.2 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

javascript-source.com performance score

94

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

85/100

10%

LCP (Largest Contentful Paint)

Value2.5 s

89/100

25%

SI (Speed Index)

Value2.5 s

98/100

10%

TBT (Total Blocking Time)

Value20 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value3.8 s

89/100

10%

Network Requests Diagram

javascript-source.com

238 ms

style.css

67 ms

layout.css

124 ms

rollover.js

129 ms

vlightbox.css

131 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that all of those requests were addressed to Javascript-source.com and no external sources were called. The less responsive or slowest element that took the longest time to load (367 ms) belongs to the original domain Javascript-source.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 14.9 kB (4%)

Content Size

400.8 kB

After Optimization

385.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Javascript-source.com main page is 400.8 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. 25% of websites need less resources to load. Images take 347.4 kB which makes up the majority of the site volume.

HTML Optimization

-74%

Potential reduce by 11.6 kB

  • Original 15.6 kB
  • After minification 14.5 kB
  • After compression 4.0 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 11.6 kB or 74% of the original size.

Image Optimization

-0%

Potential reduce by 717 B

  • Original 347.4 kB
  • After minification 346.7 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. Javascript Source images are well optimized though.

JavaScript Optimization

-5%

Potential reduce by 1.8 kB

  • Original 33.5 kB
  • After minification 33.3 kB
  • After compression 31.7 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

-16%

Potential reduce by 697 B

  • Original 4.2 kB
  • After minification 4.2 kB
  • After compression 3.5 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. Javascript-source.com needs all CSS files to be minified and compressed as it can save up to 697 B or 16% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (33%)

Requests Now

43

After Optimization

29

  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Javascript Source. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

javascript-source.com accessibility score

67

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

javascript-source.com best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

javascript-source.com SEO score

50

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

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Javascript-source.com 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 Javascript-source.com 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 description is not detected on the main page of Javascript Source. 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: