Tools & Wizards About Us

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

se.vwr.com

VWR, Part of Avantor - Ledande leverantör av laboratorieutrustning och laboratoriekemikalier

Page Load Speed

6.3 sec in total

First Response

114 ms

Resources Loaded

5.7 sec

Page Rendered

473 ms

About Website

Welcome to se.vwr.com homepage info - get ready to check Se VWR best content for United States right away, or after learning these important things about se.vwr.com

VWR en global distributör av laboratorieutrustning som erbjuder kemikalier, life science, förbrukningsvaror, apparater, instrument, inredning, e-handel och service

Visit se.vwr.com

Key Findings

We analyzed Se.vwr.com page load time and found that the first response time was 114 ms and then it took 6.2 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

se.vwr.com performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

63/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value6.1 s

44/100

10%

TBT (Total Blocking Time)

Value1,430 ms

15/100

30%

CLS (Cumulative Layout Shift)

Value0.367

29/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

se.vwr.com

114 ms

se.vwr.com

51 ms

132 ms

master.css

55 ms

rocket-loader.min.js

18 ms

Our browser made a total of 108 requests to load all elements on the main page. We found that 97% of them (105 requests) were addressed to the original Se.vwr.com, 1% (1 request) were made to Cdn.auth0.com and 1% (1 request) were made to C.la2c1.salesforceliveagent.com. The less responsive or slowest element that took the longest time to load (2.1 sec) belongs to the original domain Se.vwr.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 324.5 kB (14%)

Content Size

2.3 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Se.vwr.com main page is 2.3 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. 55% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 292.1 kB

  • Original 339.7 kB
  • After minification 247.4 kB
  • After compression 47.6 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 92.3 kB, which is 27% 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 292.1 kB or 86% of the original size.

Image Optimization

-0%

Potential reduce by 20 B

  • Original 1.6 MB
  • After minification 1.6 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. Se VWR images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 30.7 kB

  • Original 256.1 kB
  • After minification 256.1 kB
  • After compression 225.4 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 30.7 kB or 12% of the original size.

CSS Optimization

-2%

Potential reduce by 1.7 kB

  • Original 103.3 kB
  • After minification 103.3 kB
  • After compression 101.6 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. Se.vwr.com has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 21 (20%)

Requests Now

105

After Optimization

84

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 105 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Se VWR. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

se.vwr.com accessibility score

96

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

[id] attributes on active, focusable elements are not unique

Best Practices

se.vwr.com 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

Page has valid source maps

SEO Factors

se.vwr.com 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

    SV

  • Language Claimed

    SV

  • Encoding

    UTF-8

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