Tools & Wizards About Us
johjvisser.com screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 64

    Accessibility

    Visual factors better than
    that of 29% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    20% of websites

  • 62

    SEO

    Google-friendlier than
    23% of websites

johjvisser.com

johjvisser, doorlinkpagina naar websites van Johan Visser

Page Load Speed

2 sec in total

First Response

351 ms

Resources Loaded

1.2 sec

Page Rendered

393 ms

johjvisser.com screenshot

About Website

Visit johjvisser.com now to see the best up-to-date Johj Visser content and also check out these interesting facts you probably never knew about johjvisser.com

Overzicht sites van johjvisser, Joh. J. Visser, Johan Visser, Genealogie VHBS, Interieurarchitect, ICT, Persoonlijke site, ICT en Computerhulp

Visit johjvisser.com

Key Findings

We analyzed Johjvisser.com page load time and found that the first response time was 351 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 35% of websites can load faster.

Performance Metrics

johjvisser.com performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.0 s

100/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

91/100

25%

SI (Speed Index)

Value1.2 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)

Value1.0 s

100/100

10%

Network Requests Diagram

johjvisser.com

351 ms

tess1011.css

101 ms

bgRight.gif

176 ms

Animation4a.gif

345 ms

index%20data.htm

108 ms

Our browser made a total of 28 requests to load all elements on the main page. We found that all of those requests were addressed to Johjvisser.com and no external sources were called. The less responsive or slowest element that took the longest time to load (649 ms) belongs to the original domain Johjvisser.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 16.1 kB (3%)

Content Size

555.6 kB

After Optimization

539.5 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Johjvisser.com main page is 555.6 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. Images take 539.9 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 7.4 kB

  • Original 9.4 kB
  • After minification 9.1 kB
  • After compression 2.0 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 7.4 kB or 79% of the original size.

Image Optimization

-2%

Potential reduce by 8.3 kB

  • Original 539.9 kB
  • After minification 531.6 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. Johj Visser images are well optimized though.

CSS Optimization

-7%

Potential reduce by 424 B

  • Original 6.3 kB
  • After minification 6.3 kB
  • After compression 5.9 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. Johjvisser.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 13 (48%)

Requests Now

27

After Optimization

14

  • AJAX
  • Images
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Johj Visser. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

Network Requests Diagram

johjvisser.com

johjvisser.com

351 ms

tess1011.css

tess1011.css

101 ms

bgRight.gif

bgRight.gif

176 ms

Animation4a.gif

Animation4a.gif

345 ms

index%20data.htm

index%20data.htm

108 ms

ext1024_cmp_tessie-voor-johan010_hbtn.gif

ext1024_cmp_tessie-voor-johan010_hbtn.gif

172 ms

ext1024_cmp_tessie-voor-johan010_hbtn_a.gif

ext1024_cmp_tessie-voor-johan010_hbtn_a.gif

175 ms

ext1026_cmp_tessie-voor-johan010_hbtn.gif

ext1026_cmp_tessie-voor-johan010_hbtn.gif

177 ms

ext1026_cmp_tessie-voor-johan010_hbtn_a.gif

ext1026_cmp_tessie-voor-johan010_hbtn_a.gif

175 ms

ext1025_cmp_tessie-voor-johan010_hbtn.gif

ext1025_cmp_tessie-voor-johan010_hbtn.gif

174 ms

ext1025_cmp_tessie-voor-johan010_hbtn_a.gif

ext1025_cmp_tessie-voor-johan010_hbtn_a.gif

217 ms

ext1027_cmp_tessie-voor-johan010_hbtn.gif

ext1027_cmp_tessie-voor-johan010_hbtn.gif

234 ms

ext1027_cmp_tessie-voor-johan010_hbtn_a.gif

ext1027_cmp_tessie-voor-johan010_hbtn_a.gif

249 ms

ext1028_cmp_tessie-voor-johan010_hbtn.gif

ext1028_cmp_tessie-voor-johan010_hbtn.gif

250 ms

ext1028_cmp_tessie-voor-johan010_hbtn_a.gif

ext1028_cmp_tessie-voor-johan010_hbtn_a.gif

252 ms

ext1032_cmp_tessie-voor-johan010_hbtn.gif

ext1032_cmp_tessie-voor-johan010_hbtn.gif

295 ms

ext1032_cmp_tessie-voor-johan010_hbtn_a.gif

ext1032_cmp_tessie-voor-johan010_hbtn_a.gif

286 ms

ext1030_cmp_tessie-voor-johan010_hbtn.gif

ext1030_cmp_tessie-voor-johan010_hbtn.gif

304 ms

ext1030_cmp_tessie-voor-johan010_hbtn_a.gif

ext1030_cmp_tessie-voor-johan010_hbtn_a.gif

308 ms

bgLeft.gif

bgLeft.gif

310 ms

test2.jpg

test2.jpg

442 ms

johint2.gif

johint2.gif

318 ms

help.jpg

help.jpg

488 ms

johcomp2.gif

johcomp2.gif

339 ms

familieregister.jpg

familieregister.jpg

438 ms

johgen2.gif

johgen2.gif

355 ms

Img_3785b.jpg

Img_3785b.jpg

649 ms

johjoh2.gif

johjoh2.gif

410 ms

Accessibility Review

johjvisser.com accessibility score

64

Accessibility Issues

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

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

Best Practices

johjvisser.com best practices score

58

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

High

Serves images with low resolution

SEO Factors

johjvisser.com SEO score

62

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

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    NL

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1252

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Johjvisser.com 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 Johjvisser.com 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

johjvisser.com

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