Tools & Wizards About Us
carbonthirteen.com screenshot

Report Summary

  • 3

    Performance

    Renders faster than
    20% 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

  • 78

    SEO

    Google-friendlier than
    39% of websites

carbonthirteen.com

Home - Carbon13

Page Load Speed

12.4 sec in total

First Response

214 ms

Resources Loaded

10.6 sec

Page Rendered

1.6 sec

carbonthirteen.com screenshot

About Website

Welcome to carbonthirteen.com homepage info - get ready to check Carbonthirteen best content right away, or after learning these important things about carbonthirteen.com

Visit carbonthirteen.com

Key Findings

We analyzed Carbonthirteen.com page load time and found that the first response time was 214 ms and then it took 12.2 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

carbonthirteen.com performance score

3

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.2 s

19/100

10%

LCP (Largest Contentful Paint)

Value40.5 s

0/100

25%

SI (Speed Index)

Value15.7 s

0/100

10%

TBT (Total Blocking Time)

Value3,610 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value1

2/100

15%

TTI (Time to Interactive)

Value20.1 s

2/100

10%

Network Requests Diagram

carbonthirteen.com

214 ms

carbonthirteen.com

435 ms

frontend.css

363 ms

tribe-events-pro-mini-calendar-block.min.css

371 ms

css2

50 ms

Our browser made a total of 187 requests to load all elements on the main page. We found that 81% of them (151 requests) were addressed to the original Carbonthirteen.com, 10% (18 requests) were made to Fonts.gstatic.com and 1% (2 requests) were made to Js.hs-scripts.com. The less responsive or slowest element that took the longest time to load (2.8 sec) belongs to the original domain Carbonthirteen.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 412.7 kB (3%)

Content Size

12.4 MB

After Optimization

12.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Carbonthirteen.com main page is 12.4 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. Only a small number of websites need less resources to load. Images take 11.1 MB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 308.3 kB

  • Original 366.2 kB
  • After minification 358.9 kB
  • After compression 57.9 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 308.3 kB or 84% of the original size.

Image Optimization

-1%

Potential reduce by 67.4 kB

  • Original 11.1 MB
  • After minification 11.0 MB

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. Carbonthirteen images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 16.1 kB

  • Original 587.3 kB
  • After minification 586.3 kB
  • After compression 571.2 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

-6%

Potential reduce by 20.9 kB

  • Original 337.9 kB
  • After minification 337.8 kB
  • After compression 317.0 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. Carbonthirteen.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 117 (75%)

Requests Now

157

After Optimization

40

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 157 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Carbonthirteen. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 85 to 1 for JavaScripts and from 34 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

carbonthirteen.com

carbonthirteen.com

214 ms

carbonthirteen.com

carbonthirteen.com

435 ms

frontend.css

frontend.css

363 ms

tribe-events-pro-mini-calendar-block.min.css

tribe-events-pro-mini-calendar-block.min.css

371 ms

css2

css2

50 ms

frontend.css

frontend.css

342 ms

template.css

template.css

355 ms

icons.css

icons.css

346 ms

backend.css

backend.css

401 ms

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779 ms

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756 ms

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2006 ms

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Accessibility Review

carbonthirteen.com accessibility score

67

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

carbonthirteen.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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

carbonthirteen.com SEO score

78

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

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 Carbonthirteen.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 Carbonthirteen.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

carbonthirteen.com

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