Tools & Wizards About Us

Report Summary

  • 17

    Performance

    Renders faster than
    32% of other websites

  • 74

    Accessibility

    Visual factors better than
    that of 40% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

dllab.eu

Direct Language Lab – Direct Method for English: Coursebooks for teaching languages with the direct method

Page Load Speed

6.5 sec in total

First Response

847 ms

Resources Loaded

4.5 sec

Page Rendered

1.1 sec

About Website

Click here to check amazing Dl Lab content for Poland. Otherwise, check out these important facts you probably never knew about dllab.eu

Direct Language Lab – our mission is to provide language schools with coursebooks for learning foreign languages by means of the direct method

Visit dllab.eu

Key Findings

We analyzed Dllab.eu page load time and found that the first response time was 847 ms and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 75% of websites can load faster.

Performance Metrics

dllab.eu performance score

17

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

28/100

10%

LCP (Largest Contentful Paint)

Value35.8 s

0/100

25%

SI (Speed Index)

Value11.5 s

5/100

10%

TBT (Total Blocking Time)

Value2,380 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.131

81/100

15%

TTI (Time to Interactive)

Value33.3 s

0/100

10%

Network Requests Diagram

www.dllab.eu

847 ms

all.css

799 ms

font-awesome.min.css

612 ms

css

616 ms

css

643 ms

Our browser made a total of 114 requests to load all elements on the main page. We found that 66% of them (75 requests) were addressed to the original Dllab.eu, 13% (15 requests) were made to Fonts.gstatic.com and 5% (6 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Dllab.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.3 MB (22%)

Content Size

10.7 MB

After Optimization

8.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dllab.eu main page is 10.7 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 10.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 68.7 kB

  • Original 82.8 kB
  • After minification 80.8 kB
  • After compression 14.1 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. 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 68.7 kB or 83% of the original size.

Image Optimization

-19%

Potential reduce by 1.9 MB

  • Original 10.1 MB
  • After minification 8.2 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. Obviously, Dl Lab needs image optimization as it can save up to 1.9 MB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-17%

Potential reduce by 25.5 kB

  • Original 148.4 kB
  • After minification 148.4 kB
  • After compression 122.9 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 25.5 kB or 17% of the original size.

CSS Optimization

-74%

Potential reduce by 312.5 kB

  • Original 422.4 kB
  • After minification 422.2 kB
  • After compression 109.9 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. Dllab.eu needs all CSS files to be minified and compressed as it can save up to 312.5 kB or 74% of the original size.

Requests Breakdown

Number of requests can be reduced by 37 (38%)

Requests Now

97

After Optimization

60

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 97 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dl Lab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 24 to 1 for JavaScripts and from 15 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

dllab.eu accessibility score

74

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

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

dllab.eu best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

dllab.eu SEO score

86

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

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 Dllab.eu 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 Dllab.eu 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

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