Report Summary

  • 13

    Performance

    Renders faster than
    25% of other websites

  • 83

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 100

    SEO

    Google-friendlier than
    95% of websites

datalabs.edu.gr

Datalabs - Κέντρο Δια Βίου Μάθησης - Πιστοποιημένα σεμινάρια επαγγελματικής κατάρτισης

Page Load Speed

20.4 sec in total

First Response

2.4 sec

Resources Loaded

17.6 sec

Page Rendered

430 ms

datalabs.edu.gr screenshot

About Website

Click here to check amazing Datalabs content for Greece. Otherwise, check out these important facts you probably never knew about datalabs.edu.gr

Υψηλής ποιότητας εκπαιδευτικά προγράμματα, βραχυπρόσθεσμα, αλλά και ετήσια. Βασισμένα στις ανάγκες της σημερινής αγοράς εργασίας και διαθέσιμα ΄δια ζώσης, αλλά και εξ αποστάσεως

Visit datalabs.edu.gr

Key Findings

We analyzed Datalabs.edu.gr page load time and found that the first response time was 2.4 sec and then it took 18 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. This domain responded with an error, which can significantly jeopardize Datalabs.edu.gr rating and web reputation

Performance Metrics

datalabs.edu.gr performance score

13

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.9 s

4/100

10%

LCP (Largest Contentful Paint)

Value10.5 s

0/100

25%

SI (Speed Index)

Value12.7 s

3/100

10%

TBT (Total Blocking Time)

Value2,250 ms

6/100

30%

CLS (Cumulative Layout Shift)

Value0.198

62/100

15%

TTI (Time to Interactive)

Value12.5 s

14/100

10%

Network Requests Diagram

datalabs.edu.gr

2437 ms

masterslider.css

657 ms

style.css

768 ms

bootstrap.css

4603 ms

font-awesome.css

2446 ms

Our browser made a total of 87 requests to load all elements on the main page. We found that 72% of them (63 requests) were addressed to the original Datalabs.edu.gr, 9% (8 requests) were made to Apis.google.com and 3% (3 requests) were made to Maps.google.com. The less responsive or slowest element that took the longest time to load (8.9 sec) belongs to the original domain Datalabs.edu.gr.

Page Optimization Overview & Recommendations

Page size can be reduced by 930.6 kB (49%)

Content Size

1.9 MB

After Optimization

985.9 kB

In fact, the total size of Datalabs.edu.gr main page is 1.9 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. 55% of websites need less resources to load. Javascripts take 833.9 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 111.2 kB

  • Original 125.2 kB
  • After minification 88.0 kB
  • After compression 14.0 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. This page needs HTML code to be minified as it can gain 37.3 kB, which is 30% 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 111.2 kB or 89% of the original size.

Image Optimization

-7%

Potential reduce by 46.3 kB

  • Original 658.1 kB
  • After minification 611.7 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. Datalabs images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 518.1 kB

  • Original 833.9 kB
  • After minification 820.1 kB
  • After compression 315.7 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 518.1 kB or 62% of the original size.

CSS Optimization

-85%

Potential reduce by 254.9 kB

  • Original 299.4 kB
  • After minification 252.6 kB
  • After compression 44.5 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. Datalabs.edu.gr needs all CSS files to be minified and compressed as it can save up to 254.9 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 48 (60%)

Requests Now

80

After Optimization

32

The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Datalabs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 39 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

datalabs.edu.gr accessibility score

83

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.

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

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

Links do not have a discernible name

Best Practices

datalabs.edu.gr best practices score

67

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

datalabs.edu.gr SEO score

100

Search Engine Optimization Advices

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

    EL

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Datalabs.edu.gr can be misinterpreted by Google and other search engines. Our service has detected that Greek is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Datalabs.edu.gr 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 data is detected on the main page of Datalabs. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: