Tools & Wizards About Us
certell.org screenshot

Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

certell.org

Certell – Fostering a Generation of Independent Thinkers

Page Load Speed

2.4 sec in total

First Response

594 ms

Resources Loaded

1.5 sec

Page Rendered

348 ms

certell.org screenshot

About Website

Click here to check amazing Certell content for United States. Otherwise, check out these important facts you probably never knew about certell.org

Visit certell.org

Key Findings

We analyzed Certell.org page load time and found that the first response time was 594 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

certell.org performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value7.1 s

31/100

10%

TBT (Total Blocking Time)

Value110 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.03

100/100

15%

TTI (Time to Interactive)

Value9.5 s

30/100

10%

Network Requests Diagram

certell.org

594 ms

style.min.css

93 ms

video-container.min.css

74 ms

css2

29 ms

css2

44 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 87% of them (45 requests) were addressed to the original Certell.org, 4% (2 requests) were made to Fonts.googleapis.com and 4% (2 requests) were made to Clarity.ms. The less responsive or slowest element that took the longest time to load (594 ms) belongs to the original domain Certell.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 494.5 kB (34%)

Content Size

1.5 MB

After Optimization

966.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Certell.org main page is 1.5 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. 45% of websites need less resources to load. Images take 800.0 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 61.4 kB

  • Original 76.4 kB
  • After minification 74.7 kB
  • After compression 14.9 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 61.4 kB or 80% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 800.0 kB
  • After minification 800.0 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. Certell images are well optimized though.

JavaScript Optimization

-67%

Potential reduce by 224.5 kB

  • Original 337.3 kB
  • After minification 336.8 kB
  • After compression 112.8 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 224.5 kB or 67% of the original size.

CSS Optimization

-84%

Potential reduce by 208.6 kB

  • Original 247.4 kB
  • After minification 239.8 kB
  • After compression 38.8 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. Certell.org needs all CSS files to be minified and compressed as it can save up to 208.6 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 34 (68%)

Requests Now

50

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Certell. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

certell.org

certell.org

594 ms

style.min.css

style.min.css

93 ms

video-container.min.css

video-container.min.css

74 ms

css2

css2

29 ms

css2

css2

44 ms

style.css

style.css

72 ms

owl.carousel.min.css

owl.carousel.min.css

73 ms

jquery.modal.min.css

jquery.modal.min.css

75 ms

style.css

style.css

97 ms

jquery.min.js

jquery.min.js

143 ms

jquery-migrate.min.js

jquery-migrate.min.js

99 ms

js

js

101 ms

basic.min.css

basic.min.css

178 ms

theme-ie11.min.css

theme-ie11.min.css

100 ms

theme.min.css

theme.min.css

107 ms

comment-reply.min.js

comment-reply.min.js

105 ms

jquery.lazy.min.js

jquery.lazy.min.js

107 ms

jquery.cycle2.min.js

jquery.cycle2.min.js

183 ms

owl.carousel.min.js

owl.carousel.min.js

188 ms

wow.min.js

wow.min.js

186 ms

functions.js

functions.js

186 ms

jquery.modal.min.js

jquery.modal.min.js

187 ms

dom-ready.min.js

dom-ready.min.js

186 ms

hooks.min.js

hooks.min.js

186 ms

i18n.min.js

i18n.min.js

192 ms

a11y.min.js

a11y.min.js

192 ms

jquery.json.min.js

jquery.json.min.js

195 ms

gravityforms.min.js

gravityforms.min.js

195 ms

conditional_logic.min.js

conditional_logic.min.js

195 ms

placeholders.jquery.min.js

placeholders.jquery.min.js

194 ms

utils.min.js

utils.min.js

194 ms

vendor-theme.min.js

vendor-theme.min.js

194 ms

scripts-theme.min.js

scripts-theme.min.js

221 ms

gp-conditional-logic-dates.min.js

gp-conditional-logic-dates.min.js

226 ms

e-202251.js

e-202251.js

13 ms

f2hrlxgdtv

f2hrlxgdtv

92 ms

header-logo.webp

header-logo.webp

101 ms

33_percent.webp

33_percent.webp

103 ms

25_percent.webp

25_percent.webp

102 ms

3_billion.webp

3_billion.webp

101 ms

calls_to_action-flask.webp

calls_to_action-flask.webp

103 ms

calls_to_action-certificate.webp

calls_to_action-certificate.webp

103 ms

calls_to_action-books.webp

calls_to_action-books.webp

104 ms

calls_to_action-globe.webp

calls_to_action-globe.webp

103 ms

hs-students-at-computers.jpg

hs-students-at-computers.jpg

165 ms

hs-students-at-computer.jpg

hs-students-at-computer.jpg

187 ms

hs-students-at-computers2-1.jpg

hs-students-at-computers2-1.jpg

189 ms

footer-logo.webp

footer-logo.webp

122 ms

Four-Star-Rating-Badge-Full-Color.png

Four-Star-Rating-Badge-Full-Color.png

145 ms

clarity.js

clarity.js

27 ms

icomoon.ttf

icomoon.ttf

51 ms

c.gif

c.gif

8 ms

Accessibility Review

certell.org accessibility score

98

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

certell.org best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

certell.org SEO score

86

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

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

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 Certell.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 Certell.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

certell.org

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