Tools & Wizards About Us
co2now.org screenshot

Report Summary

  • 41

    Performance

    Renders faster than
    60% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

co2now.org

Earth's CO2 Home Page

Page Load Speed

4.3 sec in total

First Response

266 ms

Resources Loaded

3.2 sec

Page Rendered

759 ms

co2now.org screenshot

About Website

Visit co2now.org now to see the best up-to-date CO2 Now content for United States and also check out these interesting facts you probably never knew about co2now.org

CO2.Earth connects the general public with the latest data and information for stabilizing earth's atmosphere, climate and living environments.

Visit co2now.org

Key Findings

We analyzed Co2now.org page load time and found that the first response time was 266 ms and then it took 4 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

co2now.org performance score

41

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.8 s

27/100

10%

LCP (Largest Contentful Paint)

Value6.1 s

12/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value640 ms

47/100

30%

CLS (Cumulative Layout Shift)

Value0.123

83/100

15%

TTI (Time to Interactive)

Value10.9 s

21/100

10%

Network Requests Diagram

co2now.org

266 ms

www.co2.earth

486 ms

bootstrap.min.css

251 ms

bootstrap-responsive.min.css

253 ms

modal.css

253 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Co2now.org, 90% (44 requests) were made to Co2.earth and 4% (2 requests) were made to Assets.show.earth. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Assets.show.earth.

Page Optimization Overview & Recommendations

Page size can be reduced by 587.9 kB (33%)

Content Size

1.8 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Co2now.org main page is 1.8 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. 35% of websites need less resources to load. Images take 995.6 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 35.7 kB

  • Original 46.7 kB
  • After minification 45.3 kB
  • After compression 11.0 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 35.7 kB or 76% of the original size.

Image Optimization

-2%

Potential reduce by 14.9 kB

  • Original 995.6 kB
  • After minification 980.6 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. CO2 Now images are well optimized though.

JavaScript Optimization

-66%

Potential reduce by 335.9 kB

  • Original 506.6 kB
  • After minification 499.6 kB
  • After compression 170.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 335.9 kB or 66% of the original size.

CSS Optimization

-84%

Potential reduce by 201.4 kB

  • Original 240.3 kB
  • After minification 237.7 kB
  • After compression 38.9 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. Co2now.org needs all CSS files to be minified and compressed as it can save up to 201.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 22 (49%)

Requests Now

45

After Optimization

23

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CO2 Now. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

co2now.org

co2now.org

266 ms

www.co2.earth

www.co2.earth

486 ms

bootstrap.min.css

bootstrap.min.css

251 ms

bootstrap-responsive.min.css

bootstrap-responsive.min.css

253 ms

modal.css

modal.css

253 ms

docs.css

docs.css

254 ms

mootools-core.js

mootools-core.js

336 ms

core.js

core.js

332 ms

mootools-more.js

mootools-more.js

582 ms

jquery.min.js

jquery.min.js

419 ms

jquery-noconflict.js

jquery-noconflict.js

336 ms

jquery-migrate.min.js

jquery-migrate.min.js

336 ms

caption.js

caption.js

583 ms

bootstrap.min.js

bootstrap.min.js

590 ms

modal.js

modal.js

590 ms

utils.js

utils.js

591 ms

stickyfooter.js

stickyfooter.js

670 ms

prettify.js

prettify.js

829 ms

jquery.innerfade.js

jquery.innerfade.js

830 ms

impacto.js

impacto.js

834 ms

template.css.php

template.css.php

854 ms

template-responsive.css.php

template-responsive.css.php

861 ms

style-orange.css

style-orange.css

169 ms

joomla30-orange-extended.css

joomla30-orange-extended.css

88 ms

font-awesome.min.css

font-awesome.min.css

97 ms

kc-monthly-0600.png

kc-monthly-0600.png

778 ms

banner-top.jpg

banner-top.jpg

179 ms

wordmark-tagline_co2earth_copyright-prooxygen_510x146.png

wordmark-tagline_co2earth_copyright-prooxygen_510x146.png

263 ms

teaser_bg_sm.png

teaser_bg_sm.png

330 ms

background-stars-horizon_2000w_260k.jpg

background-stars-horizon_2000w_260k.jpg

538 ms

banner_co2_earth_has-launched_853x171.jpg

banner_co2_earth_has-launched_853x171.jpg

510 ms

temperature-horserace_noaa-esrl_2015-oct_870w.jpg

temperature-horserace_noaa-esrl_2015-oct_870w.jpg

429 ms

blank.png

blank.png

265 ms

banner_are-we-stabilzing-yet_275x60.jpg

banner_are-we-stabilzing-yet_275x60.jpg

349 ms

banner_track-the-trend_rocket-snail_275x60.jpg

banner_track-the-trend_rocket-snail_275x60.jpg

348 ms

banner_dot-earth_proud-founding-member_275x60.jpg

banner_dot-earth_proud-founding-member_275x60.jpg

433 ms

banner_who-discovered-climate-change_275x60.jpg

banner_who-discovered-climate-change_275x60.jpg

433 ms

twitter-orange.png

twitter-orange.png

511 ms

facebook-orange.png

facebook-orange.png

515 ms

10-earths-CO2_creative-commons-prooxygen-1833w.jpg

10-earths-CO2_creative-commons-prooxygen-1833w.jpg

768 ms

COP21_United_controlled-use_300x200.jpg

COP21_United_controlled-use_300x200.jpg

658 ms

10-earths-footer-CO2_creative-commons-prooxygen-600x119.png

10-earths-footer-CO2_creative-commons-prooxygen-600x119.png

757 ms

mauna-loa-observatory-0315.jpg

mauna-loa-observatory-0315.jpg

1078 ms

24a.png

24a.png

607 ms

alt_flagsa.png

alt_flagsa.png

527 ms

footer_bg.png

footer_bg.png

788 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

722 ms

analytics.js

analytics.js

48 ms

collect

collect

25 ms

Accessibility Review

co2now.org accessibility score

78

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

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

co2now.org 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

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

co2now.org SEO score

90

Search Engine Optimization Advices

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 Co2now.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 Co2now.org 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

co2now.org

Open Graph data is detected on the main page of CO2 Now. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: