Tools & Wizards About Us
classroom.bg screenshot

Report Summary

  • 20

    Performance

    Renders faster than
    37% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

classroom.bg

Онлайн Курсове по Английски език и Български за чужденци. Изпробвайте безплатно.

Page Load Speed

3.4 sec in total

First Response

548 ms

Resources Loaded

2.3 sec

Page Rendered

474 ms

classroom.bg screenshot

About Website

Click here to check amazing Classroom content for Bulgaria. Otherwise, check out these important facts you probably never knew about classroom.bg

Онлайн курсове по английски език от начинаещи до напреднали. Уроци с преподавател онлайн или самообучителен курс. Индивидуално и групово обучение във виртуална класна стая. Безплатни видео уроци с нов...

Visit classroom.bg

Key Findings

We analyzed Classroom.bg page load time and found that the first response time was 548 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

classroom.bg performance score

20

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value18.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value24.1 s

0/100

25%

SI (Speed Index)

Value38.4 s

0/100

10%

TBT (Total Blocking Time)

Value1,370 ms

16/100

30%

CLS (Cumulative Layout Shift)

Value0.051

99/100

15%

TTI (Time to Interactive)

Value24.8 s

0/100

10%

Network Requests Diagram

classroom.bg

548 ms

classroom.bg

574 ms

gtm.js

77 ms

cookieconsent.min.css

59 ms

cookieconsent.min.js

71 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 67% of them (31 requests) were addressed to the original Classroom.bg, 7% (3 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (668 ms) belongs to the original domain Classroom.bg.

Page Optimization Overview & Recommendations

Page size can be reduced by 325.6 kB (29%)

Content Size

1.1 MB

After Optimization

785.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Classroom.bg main page is 1.1 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. 50% of websites need less resources to load. Images take 597.3 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 35.2 kB

  • Original 46.3 kB
  • After minification 40.0 kB
  • After compression 11.1 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. This page needs HTML code to be minified as it can gain 6.2 kB, which is 13% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 35.2 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 28 B

  • Original 597.3 kB
  • After minification 597.3 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. Classroom images are well optimized though.

JavaScript Optimization

-41%

Potential reduce by 95.6 kB

  • Original 234.0 kB
  • After minification 209.5 kB
  • After compression 138.4 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 95.6 kB or 41% of the original size.

CSS Optimization

-84%

Potential reduce by 194.7 kB

  • Original 233.2 kB
  • After minification 208.0 kB
  • After compression 38.5 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. Classroom.bg needs all CSS files to be minified and compressed as it can save up to 194.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (43%)

Requests Now

40

After Optimization

23

  • Images
  • JavaScript
  • CSS

The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Classroom. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

classroom.bg

classroom.bg

548 ms

classroom.bg

classroom.bg

574 ms

gtm.js

gtm.js

77 ms

cookieconsent.min.css

cookieconsent.min.css

59 ms

cookieconsent.min.js

cookieconsent.min.js

71 ms

css

css

60 ms

bootstrap.min.css

bootstrap.min.css

440 ms

lity.min.css

lity.min.css

334 ms

template.css

template.css

668 ms

jquery.min.js

jquery.min.js

51 ms

jquery-ui.min.js

jquery-ui.min.js

58 ms

owl.carousel.css

owl.carousel.css

342 ms

owl.theme.css

owl.theme.css

352 ms

owl.carousel.js

owl.carousel.js

583 ms

player.js

player.js

94 ms

lity.min.js

lity.min.js

444 ms

bootstrap.min.js

bootstrap.min.js

459 ms

classroom.js

classroom.js

478 ms

ga.js

ga.js

132 ms

all.js

all.js

99 ms

logo_trimmed.png

logo_trimmed.png

150 ms

input_log_user.png

input_log_user.png

132 ms

input_log_pass.png

input_log_pass.png

189 ms

home_hero.jpg

home_hero.jpg

424 ms

s1_students-min.jpg

s1_students-min.jpg

189 ms

s1_highschool-min.jpg

s1_highschool-min.jpg

195 ms

s1_company-min.jpg

s1_company-min.jpg

224 ms

th_A1.png

th_A1.png

225 ms

th_A2.png

th_A2.png

409 ms

th_B1.png

th_B1.png

301 ms

th_B1_2.png

th_B1_2.png

423 ms

th_B2_1.png

th_B2_1.png

335 ms

th_B2_3.png

th_B2_3.png

447 ms

th_home_fsi-min.jpg

th_home_fsi-min.jpg

414 ms

th_home_engineering-min.jpg

th_home_engineering-min.jpg

448 ms

th_business-min.jpg

th_business-min.jpg

524 ms

tablet-stripe-min.jpg

tablet-stripe-min.jpg

526 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4kaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0B4kaVc.ttf

55 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4kaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsiH0B4kaVc.ttf

56 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4kaVc.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1x4kaVc.ttf

57 ms

icn_facebook.png

icn_facebook.png

462 ms

icn_twitter.png

icn_twitter.png

463 ms

all.js

all.js

22 ms

Simple-Line-Icons.woff

Simple-Line-Icons.woff

446 ms

__utm.gif

__utm.gif

36 ms

44 ms

Accessibility Review

classroom.bg accessibility score

88

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

classroom.bg best practices score

75

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

Page has valid source maps

SEO Factors

classroom.bg SEO score

90

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

Image elements do not have [alt] attributes

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

    BG

  • Language Claimed

    BG

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Classroom.bg can be misinterpreted by Google and other search engines. Our service has detected that Bulgarian is used on the page, and it matches the claimed language. Our system also found out that Classroom.bg 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

classroom.bg

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