Tools & Wizards About Us
serbianlesson.com screenshot

Report Summary

  • 5

    Performance

    Renders faster than
    21% of other websites

  • 71

    Accessibility

    Visual factors better than
    that of 37% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

serbianlesson.com

Serbian Lessons by Marina Petrović

Page Load Speed

1.2 sec in total

First Response

166 ms

Resources Loaded

848 ms

Page Rendered

146 ms

serbianlesson.com screenshot

About Website

Click here to check amazing Serbian Lesson content. Otherwise, check out these important facts you probably never knew about serbianlesson.com

My Serbian Lessons website offers hundreds of free Serbian Language exercises, fun games, online courses and lessons to help you learn Serbian.

Visit serbianlesson.com

Key Findings

We analyzed Serbianlesson.com page load time and found that the first response time was 166 ms and then it took 994 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster. This domain responded with an error, which can significantly jeopardize Serbianlesson.com rating and web reputation

Performance Metrics

serbianlesson.com performance score

5

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value17.2 s

0/100

10%

TBT (Total Blocking Time)

Value13,700 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.638

9/100

15%

TTI (Time to Interactive)

Value21.7 s

1/100

10%

Network Requests Diagram

serbianlesson.com

166 ms

cb=gapi.loaded_4

84 ms

cb=gapi.loaded_3

179 ms

cb=gapi.loaded_2

179 ms

cb=gapi.loaded_1

176 ms

Our browser made a total of 52 requests to load all elements on the main page. We found that 21% of them (11 requests) were addressed to the original Serbianlesson.com, 23% (12 requests) were made to Apis.google.com and 13% (7 requests) were made to Ssl.gstatic.com. The less responsive or slowest element that took the longest time to load (462 ms) belongs to the original domain Serbianlesson.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 111.6 kB (39%)

Content Size

286.8 kB

After Optimization

175.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Serbianlesson.com main page is 286.8 kB. 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 114.0 kB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 26.8 kB

  • Original 35.7 kB
  • After minification 35.3 kB
  • After compression 9.0 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 26.8 kB or 75% of the original size.

Image Optimization

-1%

Potential reduce by 1.4 kB

  • Original 114.0 kB
  • After minification 112.6 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. Serbian Lesson images are well optimized though.

JavaScript Optimization

-52%

Potential reduce by 49.4 kB

  • Original 95.6 kB
  • After minification 95.6 kB
  • After compression 46.3 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 49.4 kB or 52% of the original size.

CSS Optimization

-82%

Potential reduce by 34.0 kB

  • Original 41.4 kB
  • After minification 41.4 kB
  • After compression 7.4 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. Serbianlesson.com needs all CSS files to be minified and compressed as it can save up to 34.0 kB or 82% of the original size.

Requests Breakdown

Number of requests can be reduced by 23 (56%)

Requests Now

41

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Serbian Lesson. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

serbianlesson.com

serbianlesson.com

166 ms

cb=gapi.loaded_4

cb=gapi.loaded_4

84 ms

cb=gapi.loaded_3

cb=gapi.loaded_3

179 ms

cb=gapi.loaded_2

cb=gapi.loaded_2

179 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

176 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

179 ms

ga.js

ga.js

176 ms

ga.js

ga.js

18 ms

plusone.js

plusone.js

80 ms

003.png

003.png

203 ms

all.js

all.js

77 ms

classic-081711.css

classic-081711.css

175 ms

LogoEbook-LearnSerbianBySinging.jpg

LogoEbook-LearnSerbianBySinging.jpg

194 ms

StudySerbianLogo.jpg

StudySerbianLogo.jpg

266 ms

Serbian-Video-Lessons.jpg

Serbian-Video-Lessons.jpg

284 ms

banner.jpg

banner.jpg

462 ms

__utm.gif

__utm.gif

15 ms

collect

collect

140 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

55 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

83 ms

cb=gapi.loaded_2

cb=gapi.loaded_2

109 ms

subscribe_embed

subscribe_embed

242 ms

cb=gapi.loaded_3

cb=gapi.loaded_3

91 ms

sharebutton

sharebutton

150 ms

147 ms

xd_arbiter.php

xd_arbiter.php

124 ms

xd_arbiter.php

xd_arbiter.php

222 ms

postmessageRelay

postmessageRelay

106 ms

rs=AGLTcCP1XWuWX_iCC9WgWr0vKsRUFWxeag

rs=AGLTcCP1XWuWX_iCC9WgWr0vKsRUFWxeag

18 ms

rs=AGLTcCNEeBXwi31Sa43CyaFD4uWCwotgXw

rs=AGLTcCNEeBXwi31Sa43CyaFD4uWCwotgXw

43 ms

bdHGHleUa-ndQCOrdpfxfw.ttf

bdHGHleUa-ndQCOrdpfxfw.ttf

93 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

102 ms

www-subscribe-embed-vflTum1sJ.css

www-subscribe-embed-vflTum1sJ.css

80 ms

www-subscribe-embed.js

www-subscribe-embed.js

87 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

108 ms

rpc:shindig_random.js

rpc:shindig_random.js

73 ms

like.php

like.php

171 ms

www-hitchhiker-vflvB63an.png

www-hitchhiker-vflvB63an.png

14 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

7 ms

cb=gapi.loaded_4

cb=gapi.loaded_4

7 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

12 ms

border_3.gif

border_3.gif

18 ms

subscribe_embed

subscribe_embed

54 ms

spacer.gif

spacer.gif

17 ms

border_3.gif

border_3.gif

20 ms

bubbleSprite_3.png

bubbleSprite_3.png

29 ms

bubbleDropR_3.png

bubbleDropR_3.png

36 ms

bubbleDropB_3.png

bubbleDropB_3.png

36 ms

www-subscribe-embed-card-vflqARhQ4.css

www-subscribe-embed-card-vflqARhQ4.css

3 ms

www-subscribe-embed-card.js

www-subscribe-embed-card.js

4 ms

qeKvIRsJabD.js

qeKvIRsJabD.js

136 ms

LVx-xkvaJ0b.png

LVx-xkvaJ0b.png

149 ms

Accessibility Review

serbianlesson.com accessibility score

71

Accessibility Issues

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

serbianlesson.com 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

serbianlesson.com SEO score

83

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

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

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 Serbianlesson.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 Serbianlesson.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

serbianlesson.com

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