Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 74

    SEO

    Google-friendlier than
    32% of websites

teletel.nl

Verlichting Systemen - Teletel

Page Load Speed

3.4 sec in total

First Response

286 ms

Resources Loaded

2.9 sec

Page Rendered

193 ms

teletel.nl screenshot

About Website

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

Visit teletel.nl

Key Findings

We analyzed Teletel.nl page load time and found that the first response time was 286 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

teletel.nl performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value11.1 s

0/100

25%

SI (Speed Index)

Value9.3 s

13/100

10%

TBT (Total Blocking Time)

Value400 ms

67/100

30%

CLS (Cumulative Layout Shift)

Value0.223

56/100

15%

TTI (Time to Interactive)

Value10.1 s

26/100

10%

Network Requests Diagram

teletel.nl

286 ms

autocomplete.css

192 ms

jquery.plugins.css

212 ms

jquery-ui-latest.css

221 ms

smartstore.core.css

216 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 96% of them (67 requests) were addressed to the original Teletel.nl, 3% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Teletel.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 708.0 kB (55%)

Content Size

1.3 MB

After Optimization

572.6 kB

In fact, the total size of Teletel.nl main page is 1.3 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. 45% of websites need less resources to load. Javascripts take 595.3 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 79.3 kB

  • Original 92.8 kB
  • After minification 92.6 kB
  • After compression 13.5 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 79.3 kB or 85% of the original size.

Image Optimization

-7%

Potential reduce by 28.3 kB

  • Original 404.6 kB
  • After minification 376.3 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. Teletel images are well optimized though.

JavaScript Optimization

-73%

Potential reduce by 435.9 kB

  • Original 595.3 kB
  • After minification 519.1 kB
  • After compression 159.3 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 435.9 kB or 73% of the original size.

CSS Optimization

-87%

Potential reduce by 164.4 kB

  • Original 187.9 kB
  • After minification 114.1 kB
  • After compression 23.5 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. Teletel.nl needs all CSS files to be minified and compressed as it can save up to 164.4 kB or 87% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (57%)

Requests Now

68

After Optimization

29

The browser has sent 68 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Teletel. 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.

Accessibility Review

teletel.nl accessibility score

92

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Links do not have a discernible name

Best Practices

teletel.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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

teletel.nl SEO score

74

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 doesn't use legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Teletel.nl can be misinterpreted by Google and other search engines. Our service has detected that English 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 Teletel.nl main page’s claimed encoding is iso-8859-1. 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 Teletel. 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: