Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 54% of websites

  • 69

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

darkmatters.org

Forums - DarkMatters

Page Load Speed

4.7 sec in total

First Response

149 ms

Resources Loaded

3.8 sec

Page Rendered

812 ms

darkmatters.org screenshot

About Website

Visit darkmatters.org now to see the best up-to-date Dark Matters content for United States and also check out these interesting facts you probably never knew about darkmatters.org

Visit darkmatters.org

Key Findings

We analyzed Darkmatters.org page load time and found that the first response time was 149 ms and then it took 4.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster. This domain responded with an error, which can significantly jeopardize Darkmatters.org rating and web reputation

Performance Metrics

darkmatters.org performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

28/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value8.6 s

17/100

10%

TBT (Total Blocking Time)

Value3,660 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.149

76/100

15%

TTI (Time to Interactive)

Value18.0 s

4/100

10%

Network Requests Diagram

darkmatters.org

149 ms

index.php

500 ms

index.php

137 ms

prototype.js

40 ms

scriptaculous.js

51 ms

Our browser made a total of 141 requests to load all elements on the main page. We found that 30% of them (43 requests) were addressed to the original Darkmatters.org, 13% (19 requests) were made to Bh.contextweb.com and 4% (6 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (2.5 sec) relates to the external source Rdcdn.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 356.2 kB (29%)

Content Size

1.2 MB

After Optimization

893.2 kB

In fact, the total size of Darkmatters.org main page is 1.2 MB. 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. Images take 849.7 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 112.1 kB

  • Original 130.0 kB
  • After minification 103.8 kB
  • After compression 17.8 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 26.2 kB, which is 20% 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 112.1 kB or 86% of the original size.

Image Optimization

-8%

Potential reduce by 64.8 kB

  • Original 849.7 kB
  • After minification 784.9 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. Dark Matters images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 179.3 kB

  • Original 269.8 kB
  • After minification 267.7 kB
  • After compression 90.5 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 179.3 kB or 66% of the original size.

Requests Breakdown

Number of requests can be reduced by 68 (54%)

Requests Now

125

After Optimization

57

The browser has sent 125 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dark Matters. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

darkmatters.org accessibility score

82

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

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

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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

darkmatters.org best practices score

69

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

High

Registers an unload listener

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

darkmatters.org SEO score

90

Search Engine Optimization Advices

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

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Darkmatters.org 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 Darkmatters.org main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

Open Graph description is not detected on the main page of Dark Matters. 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: