Report Summary

  • 57

    Performance

    Renders faster than
    73% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 71

    SEO

    Google-friendlier than
    30% of websites

d4l.co

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Page Load Speed

4.5 sec in total

First Response

251 ms

Resources Loaded

4.1 sec

Page Rendered

151 ms

d4l.co screenshot

About Website

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Key Findings

We analyzed D4l.co page load time and found that the first response time was 251 ms and then it took 4.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

d4l.co performance score

57

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

26/100

10%

LCP (Largest Contentful Paint)

Value6.7 s

7/100

25%

SI (Speed Index)

Value4.9 s

64/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.156

74/100

15%

TTI (Time to Interactive)

Value6.7 s

56/100

10%

Network Requests Diagram

d4l.co

251 ms

www.d4ll.co

671 ms

jquery.min.js

26 ms

d1139c07470335796c893f572c8ab203.css

527 ms

e572fe896a98530c7099403ea5ef11aa.js

1034 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original D4l.co, 79% (26 requests) were made to D4ll.co and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.6 sec) relates to the external source D4ll.co.

Page Optimization Overview & Recommendations

Page size can be reduced by 123.6 kB (28%)

Content Size

443.5 kB

After Optimization

319.9 kB

In fact, the total size of D4l.co main page is 443.5 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. 20% of websites need less resources to load. Images take 181.3 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 67.8 kB

  • Original 76.4 kB
  • After minification 70.6 kB
  • After compression 8.7 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. 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 67.8 kB or 89% of the original size.

Image Optimization

-3%

Potential reduce by 6.0 kB

  • Original 181.3 kB
  • After minification 175.3 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. D4l images are well optimized though.

JavaScript Optimization

-27%

Potential reduce by 45.3 kB

  • Original 166.1 kB
  • After minification 165.9 kB
  • After compression 120.9 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 45.3 kB or 27% of the original size.

CSS Optimization

-23%

Potential reduce by 4.5 kB

  • Original 19.6 kB
  • After minification 19.4 kB
  • After compression 15.1 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. D4l.co needs all CSS files to be minified and compressed as it can save up to 4.5 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (39%)

Requests Now

31

After Optimization

19

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of D4l. 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 as a result speed up the page load time.

Accessibility Review

d4l.co accessibility score

96

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.

Best Practices

d4l.co 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

SEO Factors

d4l.co SEO score

71

Search Engine Optimization Advices

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 D4l.co 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 D4l.co 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 D4l. 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: