Report Summary

  • 30

    Performance

    Renders faster than
    50% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

zoekopnummer.nl

Telefoonnummer Zoeken | Bel 1838 (90cpm) | Op Nummer Zoeken

Page Load Speed

1.8 sec in total

First Response

284 ms

Resources Loaded

1.4 sec

Page Rendered

140 ms

zoekopnummer.nl screenshot

About Website

Click here to check amazing Zoek Op Nummer content for Netherlands. Otherwise, check out these important facts you probably never knew about zoekopnummer.nl

☎ 1838 (90cpm) | Zoek Op Nummer is al meer dan 17 jaar de telefoongids om een telefoonnummer te zoeken, een postcode te zoeken, een adres te zoeken of een mobiel nummer. Bel 1838 en onze call agents h...

Visit zoekopnummer.nl

Key Findings

We analyzed Zoekopnummer.nl page load time and found that the first response time was 284 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

zoekopnummer.nl performance score

30

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value9.7 s

11/100

10%

TBT (Total Blocking Time)

Value1,210 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0.038

100/100

15%

TTI (Time to Interactive)

Value7.4 s

49/100

10%

Network Requests Diagram

zoekopnummer.nl

284 ms

Logo_25gry.gif

24 ms

show_ads.js

5 ms

top.gif

127 ms

b1.gif

167 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 32% of them (12 requests) were addressed to the original Zoekopnummer.nl, 38% (14 requests) were made to Watchdog.eu and 11% (4 requests) were made to Pagead2.googlesyndication.com. The less responsive or slowest element that took the longest time to load (411 ms) belongs to the original domain Zoekopnummer.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 22.2 kB (38%)

Content Size

58.5 kB

After Optimization

36.3 kB

In fact, the total size of Zoekopnummer.nl main page is 58.5 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. 20% of websites need less resources to load. Javascripts take 31.8 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 22.0 kB

  • Original 26.7 kB
  • After minification 24.8 kB
  • After compression 4.7 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 22.0 kB or 83% of the original size.

JavaScript Optimization

-1%

Potential reduce by 159 B

  • Original 31.8 kB
  • After minification 31.7 kB
  • After compression 31.6 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 17 (47%)

Requests Now

36

After Optimization

19

The browser has sent 36 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zoek Op Nummer. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Review

zoekopnummer.nl accessibility score

98

Accessibility Issues

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

zoekopnummer.nl best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

zoekopnummer.nl SEO score

99

Search Engine Optimization Advices

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

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zoekopnummer.nl 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 Zoekopnummer.nl main page’s claimed encoding is . 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 Zoek Op Nummer. 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: