Tools & Wizards About Us

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

jpc.nl

Sieraden Kopen? Ontdek de Laatste Trends bij Siebel Juweliers | Direct Bestellen!

Page Load Speed

5.2 sec in total

First Response

507 ms

Resources Loaded

4.2 sec

Page Rendered

455 ms

About Website

Click here to check amazing Jpc content. Otherwise, check out these important facts you probably never knew about jpc.nl

De prachtigste sieraden vind je online bij Siebel Juweliers ✓ 10% Welkomstkorting ✓ Gratis bezorging vanaf €59,95 ✓ Gratis achteraf betalen

Visit jpc.nl

Key Findings

We analyzed Jpc.nl page load time and found that the first response time was 507 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

jpc.nl performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.9 s

52/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value30.2 s

0/100

10%

TBT (Total Blocking Time)

Value60,740 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.462

19/100

15%

TTI (Time to Interactive)

Value76.8 s

0/100

10%

Network Requests Diagram

jpc.nl

507 ms

sieraden.html

339 ms

sieraden

1203 ms

ad83bb946d315f6c3a35016e8d508fcd-1-SSL-1447956233.css

91 ms

4178ffa5a91126f31c1ef29d8a208244-1448018171.js

625 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Jpc.nl, 80% (45 requests) were made to Siebeljuweliers.nl and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source Siebeljuweliers.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 990.4 kB (64%)

Content Size

1.5 MB

After Optimization

545.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jpc.nl main page is 1.5 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. 35% of websites need less resources to load. Javascripts take 732.3 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 144.1 kB

  • Original 163.0 kB
  • After minification 122.7 kB
  • After compression 18.8 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 40.3 kB, which is 25% 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 144.1 kB or 88% of the original size.

Image Optimization

-7%

Potential reduce by 18.1 kB

  • Original 268.9 kB
  • After minification 250.8 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. Jpc images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 512.8 kB

  • Original 732.3 kB
  • After minification 732.3 kB
  • After compression 219.5 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 512.8 kB or 70% of the original size.

CSS Optimization

-85%

Potential reduce by 315.3 kB

  • Original 371.9 kB
  • After minification 368.3 kB
  • After compression 56.5 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. Jpc.nl needs all CSS files to be minified and compressed as it can save up to 315.3 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (24%)

Requests Now

50

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jpc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

jpc.nl accessibility score

77

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

jpc.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

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

jpc.nl SEO score

91

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

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

    NL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jpc.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 Jpc.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

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