Report Summary

  • 48

    Performance

    Renders faster than
    67% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 58

    SEO

    Google-friendlier than
    20% of websites

jcow.net

Jcow PHP Social Network Script | make your own social website and mobile app

Page Load Speed

15.9 sec in total

First Response

491 ms

Resources Loaded

8.1 sec

Page Rendered

7.3 sec

jcow.net screenshot

About Website

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Key Findings

We analyzed Jcow.net page load time and found that the first response time was 491 ms and then it took 15.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

jcow.net performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

39/100

10%

LCP (Largest Contentful Paint)

Value7.5 s

4/100

25%

SI (Speed Index)

Value4.3 s

75/100

10%

TBT (Total Blocking Time)

Value480 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0.055

98/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

Network Requests Diagram

www.jcow.net

491 ms

jquery.tooltip.css

156 ms

jquery.min.js

1198 ms

jquery.countdown.min.js

1734 ms

jquery.dimensions.min.js

400 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 44% of them (7 requests) were addressed to the original Jcow.net, 19% (3 requests) were made to Maxcdn.bootstrapcdn.com and 13% (2 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (3.2 sec) relates to the external source Google-analytics.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 163.4 kB (24%)

Content Size

693.6 kB

After Optimization

530.2 kB

In fact, the total size of Jcow.net main page is 693.6 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 454.2 kB which makes up the majority of the site volume.

HTML Optimization

-62%

Potential reduce by 6.3 kB

  • Original 10.2 kB
  • After minification 10.1 kB
  • After compression 3.9 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 6.3 kB or 62% of the original size.

Image Optimization

-0%

Potential reduce by 1.7 kB

  • Original 454.2 kB
  • After minification 452.5 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. Jcow images are well optimized though.

JavaScript Optimization

-30%

Potential reduce by 18.3 kB

  • Original 61.8 kB
  • After minification 54.3 kB
  • After compression 43.5 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 18.3 kB or 30% of the original size.

CSS Optimization

-82%

Potential reduce by 137.1 kB

  • Original 167.4 kB
  • After minification 162.8 kB
  • After compression 30.3 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. Jcow.net needs all CSS files to be minified and compressed as it can save up to 137.1 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (71%)

Requests Now

14

After Optimization

4

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jcow. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

jcow.net accessibility score

72

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.

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

Best Practices

jcow.net best practices score

67

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

Page has valid source maps

SEO Factors

jcow.net SEO score

58

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

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 Jcow.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 Jcow.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 description is not detected on the main page of Jcow. 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: