3.9 sec in total
408 ms
3 sec
552 ms
Welcome to rensa.nl homepage info - get ready to check Rensa best content for Netherlands right away, or after learning these important things about rensa.nl
300.000+ producten voor verwarming, ventilatie, duurzame installaties en onderdelen | Alles voor cv-ketel, warmtepomp en PV | Voor 18.00 uur besteld = volgende werkdag geleverd
Visit rensa.nlWe analyzed Rensa.nl page load time and found that the first response time was 408 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 60% of websites can load faster.
rensa.nl performance score
name
value
score
weighting
Value2.9 s
53/100
10%
Value30.6 s
0/100
25%
Value13.0 s
2/100
10%
Value4,330 ms
1/100
30%
Value0.083
94/100
15%
Value27.6 s
0/100
10%
408 ms
658 ms
57 ms
631 ms
774 ms
Our browser made a total of 54 requests to load all elements on the main page. We found that 50% of them (27 requests) were addressed to the original Rensa.nl, 15% (8 requests) were made to Youtube.com and 4% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Rensa.nl.
Page size can be reduced by 1.1 MB (30%)
3.6 MB
2.5 MB
In fact, the total size of Rensa.nl main page is 3.6 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. 75% 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 3.1 MB which makes up the majority of the site volume.
Potential reduce by 85.1 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 85.1 kB or 80% of the original size.
Potential reduce by 689.7 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. Obviously, Rensa needs image optimization as it can save up to 689.7 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.
Potential reduce by 24.9 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 24.9 kB or 33% of the original size.
Potential reduce by 310.1 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. Rensa.nl needs all CSS files to be minified and compressed as it can save up to 310.1 kB or 85% of the original size.
Number of requests can be reduced by 21 (48%)
44
23
The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rensa. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and as a result speed up the page load time.
rensa.nl
408 ms
rensa.nl
658 ms
gtm.js
57 ms
styles1.css
631 ms
global.min.css
774 ms
copypastesubscribeformlogic.js
35 ms
bodyend1.js
1295 ms
global.min.js
605 ms
js
359 ms
richmarker.min.js
603 ms
angular-locale_nl-nl.js
695 ms
nl_nl.js
702 ms
analytics.js
277 ms
hotjar-2975305.js
518 ms
js
103 ms
collect
210 ms
Rensa_Logo_PNG.png
157 ms
topbanner_donkergroen.png
172 ms
icon_nieuws_midblue.png
168 ms
0922_Burgerhout3.png
1333 ms
Henrad_ECO.jpg
523 ms
0922_Uponor2.png
1346 ms
play_icon.png
271 ms
0622_Alphainnotec.jpg
273 ms
footer_2019.png
669 ms
Part%20of%20the%20Rensa%20family%20DIAP.png
669 ms
fbevents.js
102 ms
OpenSans-Regular.woff
654 ms
OpenSans-Semibold.woff
665 ms
OpenSans-ExtraBold.woff
643 ms
OpenSans-Bold.woff
664 ms
yAzClu4uN-U
217 ms
Bannerhomepage%20de%20kracht%20van%208%20-%20week%2035.jpg
1192 ms
Homepagebanner%20-%20revisie-4.png
1197 ms
modules.8203b45d0468dcab4b64.js
93 ms
montserrat-v14-latin-600.woff
788 ms
montserrat-v14-latin-700.woff
850 ms
410811546371907
80 ms
www-player.css
17 ms
www-embed-player.js
14 ms
base.js
76 ms
fetch-polyfill.js
9 ms
ad_status.js
352 ms
WmYtwbYsvJeTDmsuIOmqRAOrqYQ4FznKv6GQB7SOtoo.js
327 ms
embed.js
203 ms
gen_204
107 ms
KFOmCnqEu92Fr1Mu4mxP.ttf
103 ms
KFOlCnqEu92Fr1MmEU9fBBc9.ttf
114 ms
id
55 ms
iframe_api
59 ms
box-69edcc3187336f9b0a3fbb4c73be9fe6.html
73 ms
Create
133 ms
www-widgetapi.js
15 ms
GenerateIT
14 ms
rensa.nl accessibility score
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
[role] values are not valid
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
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
rensa.nl best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Displays images with incorrect aspect ratio
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Missing source maps for large first-party JavaScript
rensa.nl SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
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
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
Document uses legible font sizes
Tap targets are not sized appropriately
NL
NL
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rensa.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 Rensa.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.
rensa.nl
Open Graph description is not detected on the main page of Rensa. 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: