Tools & Wizards About Us

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

ru.vwr.com

VWR, Part of Avantor - Chemicals and Laboratory Scientific Supplies

Page Load Speed

3.7 sec in total

First Response

132 ms

Resources Loaded

3.1 sec

Page Rendered

478 ms

About Website

Click here to check amazing Ru VWR content for United States. Otherwise, check out these important facts you probably never knew about ru.vwr.com

VWR International, a global laboratory supplier and distributor of chemicals, life science products, consumables, equipment, instruments, furniture, e-commerce and services

Visit ru.vwr.com

Key Findings

We analyzed Ru.vwr.com page load time and found that the first response time was 132 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

ru.vwr.com performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value12.3 s

0/100

25%

SI (Speed Index)

Value6.5 s

39/100

10%

TBT (Total Blocking Time)

Value2,330 ms

5/100

30%

CLS (Cumulative Layout Shift)

Value0.425

22/100

15%

TTI (Time to Interactive)

Value11.6 s

18/100

10%

Network Requests Diagram

ru.vwr.com

132 ms

export.vwr.com

183 ms

238 ms

master.css

57 ms

rocket-loader.min.js

30 ms

Our browser made a total of 108 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Ru.vwr.com, 96% (104 requests) were made to Export.vwr.com and 1% (1 request) were made to Cdn.auth0.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Export.vwr.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 327.0 kB (14%)

Content Size

2.3 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ru.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

-87%

Potential reduce by 294.6 kB

  • Original 339.9 kB
  • After minification 244.3 kB
  • After compression 45.3 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 95.6 kB, which is 28% 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 294.6 kB or 87% 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. Ru VWR images are well optimized though.

JavaScript Optimization

-12%

Potential reduce by 30.7 kB

  • Original 256.0 kB
  • After minification 256.0 kB
  • After compression 225.3 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. Ru.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 Ru 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

ru.vwr.com accessibility score

98

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.

Best Practices

ru.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

ru.vwr.com SEO score

91

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

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

    RU

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Ru.vwr.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Russian language. Our system also found out that Ru.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 Ru 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: