Tools & Wizards About Us
vaf.nl screenshot

Report Summary

  • 23

    Performance

    Renders faster than
    41% of other websites

  • 89

    Accessibility

    Visual factors better than
    that of 71% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

vaf.nl

Home - VAF Instruments

Page Load Speed

2.9 sec in total

First Response

468 ms

Resources Loaded

2.1 sec

Page Rendered

303 ms

vaf.nl screenshot

About Website

Visit vaf.nl now to see the best up-to-date VAF content for Russia and also check out these interesting facts you probably never knew about vaf.nl

Visit vaf.nl

Key Findings

We analyzed Vaf.nl page load time and found that the first response time was 468 ms and then it took 2.4 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

vaf.nl performance score

23

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

6/100

10%

LCP (Largest Contentful Paint)

Value15.8 s

0/100

25%

SI (Speed Index)

Value10.9 s

6/100

10%

TBT (Total Blocking Time)

Value1,170 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.016

100/100

15%

TTI (Time to Interactive)

Value17.6 s

4/100

10%

Network Requests Diagram

www.vaf.nl

468 ms

gtm.js

51 ms

miu2isa.css

63 ms

style.min.css

73 ms

d340d18ad2e137e77eaf203cb466eea1.css

219 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 74% of them (28 requests) were addressed to the original Vaf.nl, 16% (6 requests) were made to Fonts.gstatic.com and 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (543 ms) belongs to the original domain Vaf.nl.

Page Optimization Overview & Recommendations

Page size can be reduced by 196.4 kB (8%)

Content Size

2.6 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vaf.nl main page is 2.6 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. 40% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 66.6 kB

  • Original 83.1 kB
  • After minification 80.2 kB
  • After compression 16.5 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 66.6 kB or 80% of the original size.

Image Optimization

-2%

Potential reduce by 28.4 kB

  • Original 1.8 MB
  • After minification 1.8 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. VAF images are well optimized though.

JavaScript Optimization

-13%

Potential reduce by 51.3 kB

  • Original 409.3 kB
  • After minification 409.3 kB
  • After compression 358.1 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 51.3 kB or 13% of the original size.

CSS Optimization

-19%

Potential reduce by 50.1 kB

  • Original 267.5 kB
  • After minification 267.5 kB
  • After compression 217.4 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. Vaf.nl needs all CSS files to be minified and compressed as it can save up to 50.1 kB or 19% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (43%)

Requests Now

28

After Optimization

16

  • Images
  • JavaScript
  • CSS

The browser has sent 28 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VAF. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.vaf.nl

www.vaf.nl

468 ms

gtm.js

gtm.js

51 ms

miu2isa.css

miu2isa.css

63 ms

style.min.css

style.min.css

73 ms

d340d18ad2e137e77eaf203cb466eea1.css

d340d18ad2e137e77eaf203cb466eea1.css

219 ms

c20cf85a1d896aea3168db4072a05c73.css

c20cf85a1d896aea3168db4072a05c73.css

407 ms

01bf9ffbaf4d1d1c659efc37312fab53.js

01bf9ffbaf4d1d1c659efc37312fab53.js

286 ms

4ef764b3e9634571cd9f99a3cb631890.js

4ef764b3e9634571cd9f99a3cb631890.js

204 ms

09faf81e98779aaa23f969705fb70612.css

09faf81e98779aaa23f969705fb70612.css

288 ms

d62297fa1c9b3b732818d7a8e4c31d14.css

d62297fa1c9b3b732818d7a8e4c31d14.css

234 ms

4a551cc1463f7cf33c845b5143ec635f.js

4a551cc1463f7cf33c845b5143ec635f.js

543 ms

underscore.min.js

underscore.min.js

284 ms

vc_grid.min.js

vc_grid.min.js

288 ms

css

css

35 ms

p.css

p.css

21 ms

logo-vaf.svg

logo-vaf.svg

68 ms

the7-chevron-down.svg

the7-chevron-down.svg

70 ms

header-home-v2.jpg

header-home-v2.jpg

341 ms

brandelement-squares-left.svg

brandelement-squares-left.svg

71 ms

vaf-2.jpg

vaf-2.jpg

200 ms

20221121-VAF-Instruments_072.jpg

20221121-VAF-Instruments_072.jpg

332 ms

20221121-VAF-Instruments_035.jpg

20221121-VAF-Instruments_035.jpg

335 ms

20221121-VAF-Instruments_074.jpg

20221121-VAF-Instruments_074.jpg

484 ms

brandelement-squares-right.svg

brandelement-squares-right.svg

137 ms

vpiathens23_toplogo_W32495.png

vpiathens23_toplogo_W32495.png

205 ms

visual-viscosense-vaf-01_W32495.jpg

visual-viscosense-vaf-01_W32495.jpg

266 ms

odme-skid_W65695.jpg

odme-skid_W65695.jpg

271 ms

vaf-logo-white.png

vaf-logo-white.png

333 ms

aalbert-footer.png

aalbert-footer.png

306 ms

fa-solid-900.woff

fa-solid-900.woff

366 ms

fa-regular-400.woff

fa-regular-400.woff

366 ms

KFOmCnqEu92Fr1Mu4mxM.woff

KFOmCnqEu92Fr1Mu4mxM.woff

50 ms

KFOlCnqEu92Fr1MmEU9fBBc-.woff

KFOlCnqEu92Fr1MmEU9fBBc-.woff

75 ms

KFOlCnqEu92Fr1MmWUlfBBc-.woff

KFOlCnqEu92Fr1MmWUlfBBc-.woff

80 ms

nwpBtKy2OAdR1K-IwhWudF-R9QMylBJAV3Bo8Ky462EK9C0.woff

nwpBtKy2OAdR1K-IwhWudF-R9QMylBJAV3Bo8Ky462EK9C0.woff

80 ms

nwpBtKy2OAdR1K-IwhWudF-R9QMylBJAV3Bo8Kxm7GEK9C0.woff

nwpBtKy2OAdR1K-IwhWudF-R9QMylBJAV3Bo8Kxm7GEK9C0.woff

104 ms

nwpBtKy2OAdR1K-IwhWudF-R9QMylBJAV3Bo8Kxf7GEK9C0.woff

nwpBtKy2OAdR1K-IwhWudF-R9QMylBJAV3Bo8Kxf7GEK9C0.woff

135 ms

fa-brands-400.woff

fa-brands-400.woff

405 ms

Accessibility Review

vaf.nl accessibility score

89

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

vaf.nl best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

vaf.nl SEO score

90

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

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vaf.nl can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Vaf.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

vaf.nl

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