Tools & Wizards About Us
lazarski.supermemo.net screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 73

    SEO

    Google-friendlier than
    31% of websites

lazarski.supermemo.net

SuperMemo - language courses

Page Load Speed

4.5 sec in total

First Response

229 ms

Resources Loaded

3.6 sec

Page Rendered

675 ms

lazarski.supermemo.net screenshot

About Website

Click here to check amazing Lazarski Super Memo content for Spain. Otherwise, check out these important facts you probably never knew about lazarski.supermemo.net

Visit lazarski.supermemo.net

Key Findings

We analyzed Lazarski.supermemo.net page load time and found that the first response time was 229 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

lazarski.supermemo.net performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

38/100

10%

LCP (Largest Contentful Paint)

Value4.1 s

46/100

25%

SI (Speed Index)

Value9.7 s

11/100

10%

TBT (Total Blocking Time)

Value3,300 ms

2/100

30%

CLS (Cumulative Layout Shift)

Value0.046

99/100

15%

TTI (Time to Interactive)

Value10.3 s

25/100

10%

Network Requests Diagram

en

229 ms

breeze_4150b25813a8c5f0ada24a907bb96452.css

222 ms

breeze_4a0a4d5007065374e46f81f2ca728151.js

434 ms

breeze_1b2a727760a9f5d464d80f501e6a4160.js

336 ms

breeze_d2acfa966194c5d5da064f758ddffdd4.js

330 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Lazarski.supermemo.net, 3% (1 request) were made to Google.com and 3% (1 request) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (895 ms) relates to the external source Supermemo.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 345.7 kB (14%)

Content Size

2.5 MB

After Optimization

2.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lazarski.supermemo.net main page is 2.5 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. 40% of websites need less resources to load. Images take 1.9 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 150.9 kB

  • Original 173.6 kB
  • After minification 173.5 kB
  • After compression 22.6 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 150.9 kB or 87% of the original size.

Image Optimization

-10%

Potential reduce by 193.8 kB

  • Original 1.9 MB
  • After minification 1.7 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. Lazarski Super Memo images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 932 B

  • Original 388.6 kB
  • After minification 388.6 kB
  • After compression 387.7 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 0 B

  • Original 74.9 kB
  • After minification 74.9 kB
  • After compression 74.9 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. Lazarski.supermemo.net has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 12 (32%)

Requests Now

37

After Optimization

25

  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lazarski Super Memo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

en

en

229 ms

breeze_4150b25813a8c5f0ada24a907bb96452.css

breeze_4150b25813a8c5f0ada24a907bb96452.css

222 ms

breeze_4a0a4d5007065374e46f81f2ca728151.js

breeze_4a0a4d5007065374e46f81f2ca728151.js

434 ms

breeze_1b2a727760a9f5d464d80f501e6a4160.js

breeze_1b2a727760a9f5d464d80f501e6a4160.js

336 ms

breeze_d2acfa966194c5d5da064f758ddffdd4.js

breeze_d2acfa966194c5d5da064f758ddffdd4.js

330 ms

breeze_cf047163cc62a73e0dd7b9b28a0e6b3b.js

breeze_cf047163cc62a73e0dd7b9b28a0e6b3b.js

361 ms

api.js

api.js

76 ms

breeze_0c1e201527af2def0671bae05bf445cb.js

breeze_0c1e201527af2def0671bae05bf445cb.js

359 ms

breeze_fb2f1c554a09032187ab14bdc2afccf3.js

breeze_fb2f1c554a09032187ab14bdc2afccf3.js

704 ms

breeze_97f0aba41492cd9f754e9e61cceb4ece.js

breeze_97f0aba41492cd9f754e9e61cceb4ece.js

585 ms

breeze_9d0e2627fe5bc9a14ad25cb814fd65e5.js

breeze_9d0e2627fe5bc9a14ad25cb814fd65e5.js

585 ms

breeze_8579075116917a64c8ce3160116245cd.js

breeze_8579075116917a64c8ce3160116245cd.js

587 ms

breeze_6a17813d8676d6b911aeeb9a17ca2665.js

breeze_6a17813d8676d6b911aeeb9a17ca2665.js

586 ms

breeze_b59d935e915c8d9cd37d3281c6beaf7a.js

breeze_b59d935e915c8d9cd37d3281c6beaf7a.js

587 ms

logo-1.png

logo-1.png

170 ms

icon__menu-arrow-right--black.svg

icon__menu-arrow-right--black.svg

171 ms

icon__menu-arrow-right--orange.svg

icon__menu-arrow-right--orange.svg

171 ms

icon__world--black-color.svg

icon__world--black-color.svg

172 ms

supermemo.png

supermemo.png

356 ms

BC-ELTons_Email_Header_600x90_Finalist_Technology.png

BC-ELTons_Email_Header_600x90_Finalist_Technology.png

264 ms

icon__arrow-left.svg

icon__arrow-left.svg

263 ms

sprite-flags.svg

sprite-flags.svg

346 ms

300kursow-supermemo-icon.png

300kursow-supermemo-icon.png

263 ms

24jezykiobce-supermemo-icon.png

24jezykiobce-supermemo-icon.png

310 ms

icon-rpg-1.svg

icon-rpg-1.svg

339 ms

15minut-supermemo-icon.png

15minut-supermemo-icon.png

342 ms

wlasnekursy-supermemo-icon.png

wlasnekursy-supermemo-icon.png

342 ms

icon4.svg

icon4.svg

427 ms

supermemo-aplikacje-9.jpg

supermemo-aplikacje-9.jpg

883 ms

appstore.svg

appstore.svg

453 ms

google.svg

google.svg

455 ms

learn-supermemo.svg

learn-supermemo.svg

457 ms

supermemo-method.svg

supermemo-method.svg

463 ms

dialog-RPG-SuperMemo-2.png

dialog-RPG-SuperMemo-2.png

657 ms

chatting-dog-faces-745045-1-1.png

chatting-dog-faces-745045-1-1.png

895 ms

supermemo-pokochasz-nauke.png

supermemo-pokochasz-nauke.png

563 ms

img__recommendations-image.svg

img__recommendations-image.svg

569 ms

recaptcha__en.js

recaptcha__en.js

30 ms

Accessibility Review

lazarski.supermemo.net accessibility score

87

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

lazarski.supermemo.net 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

SEO Factors

lazarski.supermemo.net SEO score

73

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

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 Lazarski.supermemo.net 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 Lazarski.supermemo.net 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

lazarski.supermemo.net

Open Graph description is not detected on the main page of Lazarski Super Memo. 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: