Report Summary

  • 7

    Performance

    Renders faster than
    22% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 82% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    56% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

elro.eu

Welkom bij ELRO | Voor een comfortabele en veilige leefomgeving ELRO

Page Load Speed

3.8 sec in total

First Response

344 ms

Resources Loaded

3.3 sec

Page Rendered

157 ms

elro.eu screenshot

About Website

Click here to check amazing ELRO content for Germany. Otherwise, check out these important facts you probably never knew about elro.eu

Het grootste assortiment op het gebied van elektronische beveiliging. ✅ Op werkdagen voor 11.00 uur besteld, volgende dag in huis ✅ Bekijk ons assortiment nu! ✅

Visit elro.eu

Key Findings

We analyzed Elro.eu page load time and found that the first response time was 344 ms and then it took 3.5 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

elro.eu performance score

7

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value17.5 s

0/100

25%

SI (Speed Index)

Value13.4 s

2/100

10%

TBT (Total Blocking Time)

Value1,290 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.708

7/100

15%

TTI (Time to Interactive)

Value22.1 s

1/100

10%

Network Requests Diagram

elro.eu

344 ms

www.elro.eu

369 ms

966 ms

jquery.min.js

32 ms

jquery-ui.min.js

52 ms

Our browser made a total of 47 requests to load all elements on the main page. We found that 89% of them (42 requests) were addressed to the original Elro.eu, 4% (2 requests) were made to Ajax.googleapis.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (966 ms) belongs to the original domain Elro.eu.

Page Optimization Overview & Recommendations

Page size can be reduced by 200.1 kB (38%)

Content Size

519.8 kB

After Optimization

319.8 kB

In fact, the total size of Elro.eu main page is 519.8 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. 30% of websites need less resources to load. Images take 236.6 kB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 20.0 kB

  • Original 26.0 kB
  • After minification 24.6 kB
  • After compression 6.0 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 20.0 kB or 77% of the original size.

Image Optimization

-5%

Potential reduce by 11.3 kB

  • Original 236.6 kB
  • After minification 225.2 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. ELRO images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 125.3 kB

  • Original 203.6 kB
  • After minification 188.0 kB
  • After compression 78.3 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 125.3 kB or 62% of the original size.

CSS Optimization

-81%

Potential reduce by 43.5 kB

  • Original 53.7 kB
  • After minification 42.8 kB
  • After compression 10.2 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. Elro.eu needs all CSS files to be minified and compressed as it can save up to 43.5 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (41%)

Requests Now

44

After Optimization

26

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ELRO. 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 from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

elro.eu accessibility score

93

Accessibility Issues

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-hidden="true"] elements contain focusable descendents

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

Links do not have a discernible name

Best Practices

elro.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

Missing source maps for large first-party JavaScript

SEO Factors

elro.eu 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

Document doesn't have a valid hreflang

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

    NL

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Elro.eu can be misinterpreted by Google and other search engines. Our service has detected that Dutch 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 Elro.eu main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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