Tools & Wizards About Us
harteveld.ch screenshot

Report Summary

  • 100

    Performance

    Renders faster than
    97% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

harteveld.ch

Harteveld Rare Books Ltd. - Buecher, Livres, Antiquarian Books

Page Load Speed

2.9 sec in total

First Response

447 ms

Resources Loaded

1.7 sec

Page Rendered

742 ms

harteveld.ch screenshot

About Website

Welcome to harteveld.ch homepage info - get ready to check Harteveld best content right away, or after learning these important things about harteveld.ch

antiquarian books, antiquaire, livre, Bücher, Antiquariat, livres d'occasion, livres anciens, livres usagés, vente de livres, achat de livres

Visit harteveld.ch

Key Findings

We analyzed Harteveld.ch page load time and found that the first response time was 447 ms and then it took 2.4 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

harteveld.ch performance score

100

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value1.7 s

99/100

25%

SI (Speed Index)

Value1.1 s

100/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value0.7 s

100/100

10%

Network Requests Diagram

harteveld.ch

447 ms

114536_2.jpg

312 ms

114533.jpg

416 ms

108344_1.jpg

312 ms

106862.jpg

329 ms

Our browser made a total of 24 requests to load all elements on the main page. We found that all of those requests were addressed to Harteveld.ch and no external sources were called. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Harteveld.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.1 MB (14%)

Content Size

7.5 MB

After Optimization

6.5 MB

  • HTML
  • Images

In fact, the total size of Harteveld.ch main page is 7.5 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. 65% of websites need less resources to load. Images take 7.5 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 22.5 kB

  • Original 26.6 kB
  • After minification 20.2 kB
  • After compression 4.1 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 6.3 kB, which is 24% 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 22.5 kB or 85% of the original size.

Image Optimization

-14%

Potential reduce by 1.1 MB

  • Original 7.5 MB
  • After minification 6.4 MB

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. Obviously, Harteveld needs image optimization as it can save up to 1.1 MB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

We found no issues to fix!

Requests Now

23

After Optimization

23

  • Images

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Harteveld. According to our analytics all requests are already optimized.

Network Requests Diagram

harteveld.ch

harteveld.ch

447 ms

114536_2.jpg

114536_2.jpg

312 ms

114533.jpg

114533.jpg

416 ms

108344_1.jpg

108344_1.jpg

312 ms

106862.jpg

106862.jpg

329 ms

101264_2.jpg

101264_2.jpg

501 ms

101264.jpg

101264.jpg

502 ms

Bookin_web.jpg

Bookin_web.jpg

727 ms

Harteveld_cat282.png

Harteveld_cat282.png

934 ms

Harteveld_cat281.png

Harteveld_cat281.png

982 ms

Harteveld_cat280.png

Harteveld_cat280.png

834 ms

Harteveld_cat279.png

Harteveld_cat279.png

1118 ms

Harteveld_cat278.2.png

Harteveld_cat278.2.png

994 ms

Harteveld_cat278.png

Harteveld_cat278.png

936 ms

Harteveld_cat277.png

Harteveld_cat277.png

1043 ms

Harteveld_cat276.png

Harteveld_cat276.png

1040 ms

Harteveld_cat275.png

Harteveld_cat275.png

1047 ms

Harteveld_cat274.png

Harteveld_cat274.png

1098 ms

Harteveld_cat273.png

Harteveld_cat273.png

1125 ms

Harteveld_cat272.png

Harteveld_cat272.png

1152 ms

Harteveld_cat271.png

Harteveld_cat271.png

1157 ms

l-vebuku.gif

l-vebuku.gif

1158 ms

l-ilab.gif

l-ilab.gif

1210 ms

logo-ilab-eng.png

logo-ilab-eng.png

1242 ms

Accessibility Review

harteveld.ch accessibility score

86

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

harteveld.ch best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

SEO Factors

harteveld.ch SEO score

67

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

Language and Encoding

  • Language Detected

    FR

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Harteveld.ch can be misinterpreted by Google and other search engines. Our service has detected that French 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 Harteveld.ch main page’s claimed encoding is windows-1252. 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

harteveld.ch

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