Tools & Wizards About Us
classoos.com screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 89

    SEO

    Google-friendlier than
    66% of websites

classoos.com

Classoos | Online textbooks for students, teachers and schools

Page Load Speed

4 sec in total

First Response

175 ms

Resources Loaded

2.2 sec

Page Rendered

1.7 sec

classoos.com screenshot

About Website

Welcome to classoos.com homepage info - get ready to check Classoos best content for Israel right away, or after learning these important things about classoos.com

One platform, one login, every subject! Classoos makes it easy to use online textbooks designed for students, teachers and schools

Visit classoos.com

Key Findings

We analyzed Classoos.com page load time and found that the first response time was 175 ms and then it took 3.9 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

classoos.com performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value10.6 s

7/100

10%

TBT (Total Blocking Time)

Value4,380 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value26.7 s

0/100

10%

Network Requests Diagram

classoos.com

175 ms

www.classoos.com

450 ms

jquery.min.js

128 ms

jquery-migrate.min.js

197 ms

flatpickr.min.js

275 ms

Our browser made a total of 95 requests to load all elements on the main page. We found that 84% of them (80 requests) were addressed to the original Classoos.com, 3% (3 requests) were made to Js-eu1.hsforms.net and 3% (3 requests) were made to Hubspot-no-cache-eu1-prod.s3.amazonaws.com. The less responsive or slowest element that took the longest time to load (742 ms) belongs to the original domain Classoos.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 541.4 kB (12%)

Content Size

4.5 MB

After Optimization

3.9 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Classoos.com main page is 4.5 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. 60% of websites need less resources to load. Images take 4.0 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 407.8 kB

  • Original 467.8 kB
  • After minification 460.9 kB
  • After compression 60.0 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 407.8 kB or 87% of the original size.

Image Optimization

-3%

Potential reduce by 129.9 kB

  • Original 4.0 MB
  • After minification 3.8 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. Classoos images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 3.6 kB

  • Original 29.2 kB
  • After minification 29.2 kB
  • After compression 25.6 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 3.6 kB or 12% of the original size.

Requests Breakdown

Number of requests can be reduced by 45 (49%)

Requests Now

92

After Optimization

47

  • Images
  • JavaScript

The browser has sent 92 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Classoos. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 46 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

classoos.com

classoos.com

175 ms

www.classoos.com

www.classoos.com

450 ms

jquery.min.js

jquery.min.js

128 ms

jquery-migrate.min.js

jquery-migrate.min.js

197 ms

flatpickr.min.js

flatpickr.min.js

275 ms

select2.min.js

select2.min.js

280 ms

js

js

81 ms

shell.js

shell.js

608 ms

v2.js

v2.js

626 ms

current.js

current.js

471 ms

v2.js

v2.js

681 ms

eae.min.js

eae.min.js

153 ms

v4-shims.min.js

v4-shims.min.js

154 ms

animated-main.min.js

animated-main.min.js

208 ms

particles.min.js

particles.min.js

209 ms

magnific.min.js

magnific.min.js

222 ms

vegas.min.js

vegas.min.js

221 ms

25503485.js

25503485.js

486 ms

frontend.min.js

frontend.min.js

277 ms

dlm-xhr.min.js

dlm-xhr.min.js

277 ms

asl-prereq.js

asl-prereq.js

288 ms

asl-core.js

asl-core.js

290 ms

asl-results-vertical.js

asl-results-vertical.js

288 ms

asl-load.js

asl-load.js

290 ms

asl-wrapper.js

asl-wrapper.js

343 ms

jquery.smartmenus.min.js

jquery.smartmenus.min.js

345 ms

imagesloaded.min.js

imagesloaded.min.js

355 ms

webpack-pro.runtime.min.js

webpack-pro.runtime.min.js

357 ms

webpack.runtime.min.js

webpack.runtime.min.js

358 ms

frontend-modules.min.js

frontend-modules.min.js

360 ms

wp-polyfill-inert.min.js

wp-polyfill-inert.min.js

411 ms

regenerator-runtime.min.js

regenerator-runtime.min.js

413 ms

wp-polyfill.min.js

wp-polyfill.min.js

423 ms

hooks.min.js

hooks.min.js

423 ms

i18n.min.js

i18n.min.js

425 ms

frontend.min.js

frontend.min.js

428 ms

waypoints.min.js

waypoints.min.js

478 ms

core.min.js

core.min.js

480 ms

frontend.min.js

frontend.min.js

491 ms

elements-handlers.min.js

elements-handlers.min.js

492 ms

jquery.sticky.min.js

jquery.sticky.min.js

493 ms

4ed472ddc3.js

4ed472ddc3.js

247 ms

lazyload.min.js

lazyload.min.js

496 ms

gtm.js

gtm.js

35 ms

fbevents.js

fbevents.js

41 ms

fa-solid-900.woff

fa-solid-900.woff

138 ms

web-interactives-embed.js

web-interactives-embed.js

451 ms

banner.js

banner.js

440 ms

25503485.js

25503485.js

513 ms

51f2c909-a859-44e3-a105-71a356fd14e8.png

51f2c909-a859-44e3-a105-71a356fd14e8.png

397 ms

classoos_logo_s.png

classoos_logo_s.png

77 ms

Classoos-Pack-Shot-Fixed@1024-4-1-1-1-1-1-1-2-1.png

Classoos-Pack-Shot-Fixed@1024-4-1-1-1-1-1-1-2-1.png

416 ms

Curriculum_on-lineX1.png

Curriculum_on-lineX1.png

209 ms

Classoos-Pack-Shot-Fixed@1024-2-1-2-1-1-1-1-1-2.png

Classoos-Pack-Shot-Fixed@1024-2-1-2-1-1-1-1-1-2.png

480 ms

Pearson-digital-textbooks.png

Pearson-digital-textbooks.png

142 ms

Hodder_Ed_logo.png

Hodder_Ed_logo.png

130 ms

oxford_university_press@2x.png

oxford_university_press@2x.png

211 ms

cambridge-digital-textbooks.png

cambridge-digital-textbooks.png

198 ms

harpercollins-logosvg-2000x321-1-300x48.png

harpercollins-logosvg-2000x321-1-300x48.png

210 ms

bloomsbury-logo.jpg

bloomsbury-logo.jpg

266 ms

pg-online-digital-textbooks.png

pg-online-digital-textbooks.png

277 ms

Taylor-Francis-digital-textbooks.png

Taylor-Francis-digital-textbooks.png

345 ms

Color-point.png

Color-point.png

279 ms

elmwoode-digital-textbooks.png

elmwoode-digital-textbooks.png

334 ms

Ruslan-Russian.png

Ruslan-Russian.png

345 ms

Galore-Park-digital-textbooks.png

Galore-Park-digital-textbooks.png

346 ms

Red-Squer-Ruslan--e1617796109773.png

Red-Squer-Ruslan--e1617796109773.png

402 ms

Rising-Stars-digital-textbooks.png

Rising-Stars-digital-textbooks.png

413 ms

book-123-digital-textbooks.png

book-123-digital-textbooks.png

413 ms

cgp-logo.png

cgp-logo.png

416 ms

book_10812_m_1.jpg

book_10812_m_1.jpg

470 ms

book_8370_m_2.jpg

book_8370_m_2.jpg

548 ms

book_13092_m_1.jpg

book_13092_m_1.jpg

482 ms

book_15192_m_1.png

book_15192_m_1.png

616 ms

book_11476_m_1.jpg

book_11476_m_1.jpg

482 ms

book_12934_m_1.jpg

book_12934_m_1.jpg

537 ms

book_19101_m_1.png

book_19101_m_1.png

546 ms

book_19128_m_2.png

book_19128_m_2.png

549 ms

book_19089_m_1.png

book_19089_m_1.png

685 ms

book_19158_m_1.png

book_19158_m_1.png

605 ms

book_19127_m_1.png

book_19127_m_1.png

615 ms

book_19135_m_1.png

book_19135_m_1.png

681 ms

Enrich.png

Enrich.png

618 ms

Apple-iPad-Air-2-Silver-E-Reader-Notes-723x1024.png

Apple-iPad-Air-2-Silver-E-Reader-Notes-723x1024.png

742 ms

Devide_680.png

Devide_680.png

683 ms

9fd23e01-5630-43eb-b86d-eb38cf1d5cb2.png

9fd23e01-5630-43eb-b86d-eb38cf1d5cb2.png

398 ms

2c9f2f4d-8a61-461a-9a58-3ea400759518.png

2c9f2f4d-8a61-461a-9a58-3ea400759518.png

432 ms

appstore_170.png

appstore_170.png

613 ms

play_170.png

play_170.png

603 ms

winstore_170.png

winstore_170.png

623 ms

Upload.png

Upload.png

613 ms

School-Learning-Resources.png

School-Learning-Resources.png

623 ms

Heather-Hanbury3-e1511333449668-300x300.jpg

Heather-Hanbury3-e1511333449668-300x300.jpg

548 ms

JXM.jpg

JXM.jpg

546 ms

Marc.jpg

Marc.jpg

602 ms

Accessibility Review

classoos.com accessibility score

96

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.

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

Links do not have a discernible name

Best Practices

classoos.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

Page has valid source maps

SEO Factors

classoos.com SEO score

89

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

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 Classoos.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 Classoos.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

classoos.com

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