Tools & Wizards About Us

Report Summary

  • 29

    Performance

    Renders faster than
    49% of other websites

  • 92

    Accessibility

    Visual factors better than
    that of 78% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 88

    SEO

    Google-friendlier than
    65% of websites

ab-c.nl

Home | ab-c media

Page Load Speed

2.7 sec in total

First Response

375 ms

Resources Loaded

2.2 sec

Page Rendered

167 ms

About Website

Click here to check amazing Ab C content. Otherwise, check out these important facts you probably never knew about ab-c.nl

ab-c media is een bureau dat producten ontwikkelt op gebied van cultureel erfgoed. Onze producten gaan inhoudelijk over archeologie, geschiedenis, kunst en literatuur.

Visit ab-c.nl

Key Findings

We analyzed Ab-c.nl page load time and found that the first response time was 375 ms and then it took 2.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

ab-c.nl performance score

29

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value9.7 s

0/100

25%

SI (Speed Index)

Value9.8 s

10/100

10%

TBT (Total Blocking Time)

Value890 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value15.0 s

7/100

10%

Network Requests Diagram

www.ab-c.nl

375 ms

bootstrap.css

597 ms

font-awesome.min.css

7 ms

sticky-footer-navbar.css

382 ms

style.css

353 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that 71% of them (20 requests) were addressed to the original Ab-c.nl, 7% (2 requests) were made to Maxcdn.bootstrapcdn.com and 7% (2 requests) were made to S7.addthis.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Ab-c.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 523.4 kB (39%)

Content Size

1.3 MB

After Optimization

804.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ab-c.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. Images take 549.7 kB which makes up the majority of the site volume.

HTML Optimization

-68%

Potential reduce by 32.9 kB

  • Original 48.7 kB
  • After minification 47.8 kB
  • After compression 15.8 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 32.9 kB or 68% of the original size.

Image Optimization

-1%

Potential reduce by 4.4 kB

  • Original 549.7 kB
  • After minification 545.3 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. Ab C images are well optimized though.

JavaScript Optimization

-61%

Potential reduce by 329.8 kB

  • Original 543.9 kB
  • After minification 519.9 kB
  • After compression 214.1 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 329.8 kB or 61% of the original size.

CSS Optimization

-84%

Potential reduce by 156.4 kB

  • Original 185.3 kB
  • After minification 156.4 kB
  • After compression 28.9 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. Ab-c.nl needs all CSS files to be minified and compressed as it can save up to 156.4 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 10 (45%)

Requests Now

22

After Optimization

12

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 22 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ab C. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

ab-c.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

ab-c.nl best practices score

83

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

ab-c.nl SEO score

88

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ab-c.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 Ab-c.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 Ab C. 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: