Tools & Wizards About Us
alfa-college.nl screenshot

Report Summary

  • 32

    Performance

    Renders faster than
    52% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

alfa-college.nl

Alfa-college - Samen vinden we het uit | mbo-opleidingen | Alfa-college

Page Load Speed

2.9 sec in total

First Response

372 ms

Resources Loaded

2.4 sec

Page Rendered

157 ms

alfa-college.nl screenshot

About Website

Welcome to alfa-college.nl homepage info - get ready to check Alfa College best content for Netherlands right away, or after learning these important things about alfa-college.nl

Het Alfa-college is een ROC voor Noord- en Oost-Nederland waar je terecht kunt voor een mbo-opleiding, educatief traject of een bedrijfsopleiding. >

Visit alfa-college.nl

Key Findings

We analyzed Alfa-college.nl page load time and found that the first response time was 372 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

alfa-college.nl performance score

32

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value6.5 s

9/100

25%

SI (Speed Index)

Value6.9 s

34/100

10%

TBT (Total Blocking Time)

Value1,100 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value10.6 s

23/100

10%

Network Requests Diagram

alfa-college.nl

372 ms

www.alfa-college.nl

499 ms

gtm.js

63 ms

css2

33 ms

custom

268 ms

Our browser made a total of 26 requests to load all elements on the main page. We found that 35% of them (9 requests) were addressed to the original Alfa-college.nl, 23% (6 requests) were made to Fonts.gstatic.com and 15% (4 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (804 ms) belongs to the original domain Alfa-college.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 53.5 kB (5%)

Content Size

1.1 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Alfa-college.nl main page is 1.1 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. Images take 860.6 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 43.3 kB

  • Original 55.1 kB
  • After minification 52.6 kB
  • After compression 11.8 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. 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 43.3 kB or 79% of the original size.

Image Optimization

-1%

Potential reduce by 5.4 kB

  • Original 860.6 kB
  • After minification 855.2 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. Alfa College images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.4 kB

  • Original 189.9 kB
  • After minification 189.9 kB
  • After compression 188.5 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. This website has mostly compressed JavaScripts.

CSS Optimization

-32%

Potential reduce by 3.3 kB

  • Original 10.4 kB
  • After minification 10.4 kB
  • After compression 7.1 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. Alfa-college.nl needs all CSS files to be minified and compressed as it can save up to 3.3 kB or 32% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (71%)

Requests Now

17

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Alfa College. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

alfa-college.nl

alfa-college.nl

372 ms

www.alfa-college.nl

www.alfa-college.nl

499 ms

gtm.js

gtm.js

63 ms

css2

css2

33 ms

custom

custom

268 ms

modernizr-custom.js

modernizr-custom.js

288 ms

vendor

vendor

616 ms

custom

custom

391 ms

webReader.js

webReader.js

664 ms

cse.js

cse.js

57 ms

custom-footer

custom-footer

554 ms

js

js

48 ms

banner-scholieren.jpg

banner-scholieren.jpg

804 ms

image.focuspoints.io

image.focuspoints.io

76 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4n.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsgH1y4n.ttf

24 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4n.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsg-1y4n.ttf

30 ms

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4n.ttf

memSYaGs126MiZpBA-UvWbX2vVnXBbObj2OVZyOOSr4dVJWUgsjZ0C4n.ttf

64 ms

_icon-font.woff

_icon-font.woff

230 ms

cse_element__nl.js

cse_element__nl.js

30 ms

default+nl.css

default+nl.css

61 ms

default.css

default.css

64 ms

async-ads.js

async-ads.js

62 ms

clear.png

clear.png

53 ms

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9XzyYzQ.ttf

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9XzyYzQ.ttf

55 ms

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9ZjyYzQ.ttf

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9ZjyYzQ.ttf

49 ms

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9gTuYzQ.ttf

vEF72_JTCgwQ5ejvMV0Ox_Kg1UwJ0tKfX4zNpD8E4ASzH1r9gTuYzQ.ttf

140 ms

Accessibility Review

alfa-college.nl accessibility score

96

Accessibility Issues

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

alfa-college.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

SEO Factors

alfa-college.nl SEO score

98

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

    UTF-8

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

alfa-college.nl

Open Graph data is detected on the main page of Alfa College. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: