Access devolo.nl. Overal internet - devolo maakt eind aan WiFi-problemen

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value12.3 s

0/100

25%

SI (Speed Index)

Value13.0 s

2/100

10%

TBT (Total Blocking Time)

Value15,560 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.237

52/100

15%

TTI (Time to Interactive)

Value23.8 s

1/100

10%

devolo.nl

296 ms

728 ms

css

59 ms

devolo.css

104 ms

jquery-1.11.3.min.js

3372 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Devolo.nl, 93% (62 requests) were made to Devolo.com and 3% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (3.4 sec) relates to the external source Devolo.com.

Content Size

783.7 kB

After Optimization

532.4 kB

In fact, the total size of Devolo.nl main page is 783.7 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. 40% of websites need less resources to load. Images take 459.8 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 43.5 kB

Original 54.5 kB
After minification 52.5 kB
After compression 11.1 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 43.5 kB or 80% of the original size.

Image Optimization

-3%

Potential reduce by 14.3 kB

Original 459.8 kB
After minification 445.6 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. Devolo images are well optimized though.

JavaScript Optimization

-69%

Potential reduce by 144.4 kB

Original 209.6 kB
After minification 171.1 kB
After compression 65.2 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 144.4 kB or 69% of the original size.

CSS Optimization

-82%

Potential reduce by 49.2 kB

Original 59.7 kB
After minification 49.2 kB
After compression 10.6 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. Devolo.nl needs all CSS files to be minified and compressed as it can save up to 49.2 kB or 82% of the original size.

Requests Now

After Optimization

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Devolo. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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.

High

Buttons do not have an accessible name

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

Language and Encoding

Language Detected

NL
Language Claimed

NL
Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Devolo.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it matches the claimed language. Our system also found out that Devolo.nl 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

devolo.nl

Open Graph data is detected on the main page of Devolo. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Overal internet - devolo maakt eind aan WiFi-problemen | devolo

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

devolo.nl

css

devolo.css

jquery-1.11.3.min.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

devolo.nl

css

devolo.css

jquery-1.11.3.min.js

jquery-regex.js

jquery.jcarouselLite.js

jquery.scrollTo.js

jquery.json-2.2.js

collection.js

analytics.js

default.png

domlang_box_new.png

domlang_flaggen_klein.gif

devolo-Home-Control-Starter-Pack-packshot-Starter-Kit-pm-3707.jpg

Computer-Easy-201511-xs-4097.jpg

iCreate-201511-xs-4096.jpg

AV-Test-20158-xs-3781.jpg

devolo-Home-Control-Metering-Plug-packshot-Single-Adapter-pm-3675.jpg

devolo-Home-Control-DoorWindow-Contact-packshot-Single-Adapter-pm-3664.jpg

devolo-Home-Control-Radiator-Thermostat-packshot-Single-Adapter-pm-3693.jpg

devolo-Home-Control-Motion-Sensor-packshot-Single-Adapter-pm-3691.jpg

devolo-Home-Control-Smoke-Detector-packshot-Single-Adapter-pm-3699.jpg

devolo-Home-Control-Wall-Switch-packshot-Single-Adapter-pm-3704.jpg

devolo-Home-Control-Key-Fob-Switch-packshot-Single-Adapter-pm-3695.jpg

devolo-Home-Control-Room-Thermostat-packshot-Single-Adapter-pm-3711.jpg

dLAN-1200+-packshot-Starter-Kit-pm-3090.jpg

CHIP-201410-xs-3331.jpg

Hardwareinfo-201410-xs-3299.jpg

dLAN-650+-packshot-Starter-Kit-pm-1677.jpg

Winmag-Pro-201410-xs-3294.jpg

Gadgetgearnl-20143-xs-2945.jpg

Diskideebe-20142-xs-2938.jpg

Het-Nieuwsblad-20142-xs-2943.jpg

Forward-Magazin-20142-xs-2940.jpg

PCM-20142-xs-2939.jpg

dLAN-650-triple+-packshot-Starter-Kit-pm-1698.jpg

Computer-Totaal-20145-xs-2992.jpg

dLAN-550-duo+-packshot-Starter-Kit-pm-3054.jpg

dLAN-500-duo+-packshot-Starter-Kit-pm-1316.jpg

dLAN-500-duo-packshot-Starter-Kit-pm-1293.jpg

dLAN-1200+-WiFi-ac-packshot-Starter-Kit-pm-3306.jpg

Reshift-Digital-201511-xs-4034.jpg

MacFan-20156-xs-3535.jpg

Computer-Idee-20154-xs-3460.jpg