Tools & Wizards About Us
kartable.com screenshot

Report Summary

  • 68

    Performance

    Renders faster than
    80% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

kartable.com

Kartable: Lessons and exercises for High School

Page Load Speed

1.3 sec in total

First Response

8 ms

Resources Loaded

410 ms

Page Rendered

920 ms

kartable.com screenshot

About Website

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

The best learning platform for high school students. All subjects and courses to master math from 9th to 12th grade: Precalculus, Calculus, Algebra 1 & 2, Geometry, Trigonometry, Statistics and Probab...

Visit kartable.com

Key Findings

We analyzed Kartable.com page load time and found that the first response time was 8 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

kartable.com performance score

68

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

57/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

51/100

25%

SI (Speed Index)

Value3.3 s

91/100

10%

TBT (Total Blocking Time)

Value330 ms

75/100

30%

CLS (Cumulative Layout Shift)

Value0.011

100/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

Network Requests Diagram

kartable.com

8 ms

kartable.com

10 ms

www.kartable.com

33 ms

main.min.1723472745.css

82 ms

runtime.59bd10237bcac906.js

22 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 29% of them (8 requests) were addressed to the original Kartable.com, 71% (20 requests) were made to Assets.kartable.com. The less responsive or slowest element that took the longest time to load (326 ms) relates to the external source Assets.kartable.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 135.5 kB (6%)

Content Size

2.2 MB

After Optimization

2.1 MB

  • HTML
  • Images
  • CSS

In fact, the total size of Kartable.com main page is 2.2 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. 25% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 135.5 kB

  • Original 155.4 kB
  • After minification 154.6 kB
  • After compression 19.9 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 135.5 kB or 87% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 2.0 MB
  • After minification 2.0 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. Kartable images are well optimized though.

CSS Optimization

-1%

Potential reduce by 49 B

  • Original 4.8 kB
  • After minification 4.8 kB
  • After compression 4.7 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. Kartable.com has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

25

After Optimization

25

  • Images
  • JavaScript
  • CSS

The browser has sent 25 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Kartable. According to our analytics all requests are already optimized.

Network Requests Diagram

kartable.com

kartable.com

8 ms

kartable.com

kartable.com

10 ms

www.kartable.com

www.kartable.com

33 ms

main.min.1723472745.css

main.min.1723472745.css

82 ms

runtime.59bd10237bcac906.js

runtime.59bd10237bcac906.js

22 ms

polyfills.c249f8cc36dd12e0.js

polyfills.c249f8cc36dd12e0.js

21 ms

main.7a4600a3af6bbb11.js

main.7a4600a3af6bbb11.js

46 ms

kartable-logo.svg

kartable-logo.svg

90 ms

home-background-us.jpg

home-background-us.jpg

326 ms

cours-en-live-frame.svg

cours-en-live-frame.svg

81 ms

navigation-us.jpg

navigation-us.jpg

191 ms

mask-down-flat.svg

mask-down-flat.svg

86 ms

devices-home-us.png

devices-home-us.png

206 ms

mask-up-flat.svg

mask-up-flat.svg

114 ms

dashboard-us.jpg

dashboard-us.jpg

279 ms

covid.svg

covid.svg

145 ms

testimonial-1.png

testimonial-1.png

167 ms

testimonial-2.png

testimonial-2.png

195 ms

testimonial-3.png

testimonial-3.png

199 ms

testimonial-4.png

testimonial-4.png

279 ms

testimonial-5.png

testimonial-5.png

279 ms

testimonial-6.png

testimonial-6.png

280 ms

testimonial-7.png

testimonial-7.png

282 ms

testimonial-8.png

testimonial-8.png

308 ms

generic_icons.svg

generic_icons.svg

28 ms

us.png

us.png

25 ms

testimonials-mask.svg

testimonials-mask.svg

276 ms

footerBackground.svg

footerBackground.svg

219 ms

Accessibility Review

kartable.com accessibility score

91

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.

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

kartable.com best practices score

83

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

Missing source maps for large first-party JavaScript

SEO Factors

kartable.com SEO score

93

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

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 Kartable.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 Kartable.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

kartable.com

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