Tools & Wizards About Us
rera.nl screenshot

Report Summary

  • 73

    Performance

    Renders faster than
    83% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

rera.nl

Domein Gereserveerd - Mijndomein.nl

Page Load Speed

21.6 sec in total

First Response

10.1 sec

Resources Loaded

11.3 sec

Page Rendered

152 ms

rera.nl screenshot

About Website

Welcome to rera.nl homepage info - get ready to check Rera best content right away, or after learning these important things about rera.nl

ReRa Solutions has many years of experience in the development of Photovoltaic Measurement Systems. This resulted in complete measurement systems, tooling and software for solar cell and module measur...

Visit rera.nl

Key Findings

We analyzed Rera.nl page load time and found that the first response time was 10.1 sec and then it took 11.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

rera.nl performance score

73

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

41/100

25%

SI (Speed Index)

Value3.7 s

85/100

10%

TBT (Total Blocking Time)

Value160 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value4.3 s

84/100

10%

Network Requests Diagram

rera.nl

10088 ms

style.css

412 ms

front-end.css

356 ms

dashicons.min.css

525 ms

thickbox.css

360 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Rera.nl, 87% (40 requests) were made to Rerasolutions.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (10.1 sec) belongs to the original domain Rera.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 206.3 kB (53%)

Content Size

386.9 kB

After Optimization

180.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rera.nl main page is 386.9 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. 25% of websites need less resources to load. Javascripts take 217.0 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 17.1 kB

  • Original 22.5 kB
  • After minification 21.2 kB
  • After compression 5.4 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 17.1 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 227 B

  • Original 52.0 kB
  • After minification 51.7 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. Rera images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 132.3 kB

  • Original 217.0 kB
  • After minification 210.2 kB
  • After compression 84.7 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 132.3 kB or 61% of the original size.

CSS Optimization

-59%

Potential reduce by 56.6 kB

  • Original 95.4 kB
  • After minification 85.6 kB
  • After compression 38.8 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. Rera.nl needs all CSS files to be minified and compressed as it can save up to 56.6 kB or 59% of the original size.

Requests Breakdown

Number of requests can be reduced by 35 (78%)

Requests Now

45

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 45 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Rera. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rera.nl

rera.nl

10088 ms

style.css

style.css

412 ms

front-end.css

front-end.css

356 ms

dashicons.min.css

dashicons.min.css

525 ms

thickbox.css

thickbox.css

360 ms

styles.css

styles.css

362 ms

tablepress-combined.min.css

tablepress-combined.min.css

301 ms

ytprefs.min.css

ytprefs.min.css

449 ms

frontend.css

frontend.css

480 ms

jquery.js

jquery.js

733 ms

jquery-migrate.min.js

jquery-migrate.min.js

482 ms

ytprefs.min.js

ytprefs.min.js

551 ms

external-tracking.min.js

external-tracking.min.js

593 ms

suckerfish_ie.js

suckerfish_ie.js

638 ms

script.js

script.js

618 ms

comment-reply.min.js

comment-reply.min.js

578 ms

thickbox.js

thickbox.js

587 ms

jquery.form.min.js

jquery.form.min.js

748 ms

scripts.js

scripts.js

703 ms

fitvids.min.js

fitvids.min.js

704 ms

wp-emoji-release.min.js

wp-emoji-release.min.js

378 ms

iframe_api

iframe_api

53 ms

ga.js

ga.js

29 ms

twitter-a.png

twitter-a.png

97 ms

sheet.png

sheet.png

191 ms

header.jpg

header.jpg

354 ms

nav.png

nav.png

193 ms

menuitem.png

menuitem.png

187 ms

spacer.gif

spacer.gif

186 ms

subitem.png

subitem.png

197 ms

post_b.png

post_b.png

309 ms

post_t.png

post_t.png

312 ms

post.png

post.png

327 ms

spequest1-150x150.png

spequest1-150x150.png

393 ms

refcell-150x150.png

refcell-150x150.png

392 ms

LOTsimulator1-150x150.png

LOTsimulator1-150x150.png

422 ms

postbullets.png

postbullets.png

424 ms

block_b.png

block_b.png

454 ms

block_t.png

block_t.png

482 ms

block.png

block.png

523 ms

home-icon.png

home-icon.png

528 ms

search.png

search.png

531 ms

footer.png

footer.png

543 ms

__utm.gif

__utm.gif

16 ms

www-widgetapi.js

www-widgetapi.js

6 ms

loadingAnimation.gif

loadingAnimation.gif

482 ms

Accessibility Review

rera.nl accessibility score

68

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

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.

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

rera.nl best practices score

75

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

SEO Factors

rera.nl SEO score

77

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

High

robots.txt is not valid

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

    NL

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Rera.nl can be misinterpreted by Google and other search engines. Our service has detected that Dutch is used on the page, and it does not match the claimed English language. Our system also found out that Rera.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

rera.nl

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