Tools & Wizards About Us
ni.vwr.com screenshot

Report Summary

  • 25

    Performance

    Renders faster than
    44% 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

ni.vwr.com

VWR, Part of Avantor - Chemicals and laboratory scientific supplies

Page Load Speed

2.4 sec in total

First Response

120 ms

Resources Loaded

1.9 sec

Page Rendered

398 ms

ni.vwr.com screenshot

About Website

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

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

Visit ni.vwr.com

Key Findings

We analyzed Ni.vwr.com page load time and found that the first response time was 120 ms and then it took 2.3 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

ni.vwr.com performance score

25

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

64/100

10%

LCP (Largest Contentful Paint)

Value12.0 s

0/100

25%

SI (Speed Index)

Value5.4 s

56/100

10%

TBT (Total Blocking Time)

Value1,120 ms

23/100

30%

CLS (Cumulative Layout Shift)

Value0.358

30/100

15%

TTI (Time to Interactive)

Value11.6 s

18/100

10%

Network Requests Diagram

ni.vwr.com

120 ms

ni.vwr.com

55 ms

170 ms

master.css

56 ms

modernizr.min.js

38 ms

Our browser made a total of 105 requests to load all elements on the main page. We found that 95% of them (100 requests) were addressed to the original Ni.vwr.com, 1% (1 request) were made to Cdn.auth0.com and 1% (1 request) were made to Static.cloudflareinsights.com. The less responsive or slowest element that took the longest time to load (524 ms) belongs to the original domain Ni.vwr.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 236.9 kB (11%)

Content Size

2.2 MB

After Optimization

1.9 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Ni.vwr.com main page is 2.2 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. 60% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 235.0 kB

  • Original 310.8 kB
  • After minification 310.3 kB
  • After compression 75.9 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 235.0 kB or 76% of the original size.

Image Optimization

-0%

Potential reduce by 20 B

  • Original 1.5 MB
  • After minification 1.5 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. Ni VWR images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 209 B

  • Original 210.1 kB
  • After minification 210.1 kB
  • After compression 209.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-2%

Potential reduce by 1.7 kB

  • Original 103.2 kB
  • After minification 103.2 kB
  • After compression 101.5 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. Ni.vwr.com has all CSS files already compressed.

Requests Breakdown

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

Requests Now

102

After Optimization

82

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ni 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 12 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

ni.vwr.com

ni.vwr.com

120 ms

ni.vwr.com

ni.vwr.com

55 ms

170 ms

master.css

master.css

56 ms

modernizr.min.js

modernizr.min.js

38 ms

jquery-3.6.1.min.js

jquery-3.6.1.min.js

49 ms

jquery-migrate-3.4.0.min.js

jquery-migrate-3.4.0.min.js

48 ms

unified-responsive-2022.min.js

unified-responsive-2022.min.js

42 ms

datatables-1.12.1.min.js

datatables-1.12.1.min.js

53 ms

jquery-ui-custom-1.13.1.min.js

jquery-ui-custom-1.13.1.min.js

117 ms

auth0.min.js

auth0.min.js

23 ms

generictagmanager.js

generictagmanager.js

116 ms

jquery.cookiesdirective2.js

jquery.cookiesdirective2.js

110 ms

vcd15cbe7772f49c399c6a5babf22c1241717689176015

vcd15cbe7772f49c399c6a5babf22c1241717689176015

32 ms

gtm.js

gtm.js

261 ms

insight.min.js

insight.min.js

176 ms

battery-90x90.png

battery-90x90.png

164 ms

segment_life_science_2019_90.jpg

segment_life_science_2019_90.jpg

165 ms

s2s-90x90.jpg

s2s-90x90.jpg

166 ms

c2t-9090.jpg

c2t-9090.jpg

167 ms

iggy_logo_70_2017.jpg

iggy_logo_70_2017.jpg

165 ms

mt_chrom.png

mt_chrom.png

165 ms

chrom-knowledge-centre-7070.jpg

chrom-knowledge-centre-7070.jpg

175 ms

chrom-application-library-7070.jpg

chrom-application-library-7070.jpg

185 ms

hichrom_column_90_90.jpg

hichrom_column_90_90.jpg

176 ms

analytical_chemistry_2021_100x100.jpg

analytical_chemistry_2021_100x100.jpg

173 ms

mega_menu_34607_1.jpg

mega_menu_34607_1.jpg

185 ms

bioprocessing_solutions_antibody_90.jpg

bioprocessing_solutions_antibody_90.jpg

180 ms

thumb_master_flex.jpg

thumb_master_flex.jpg

185 ms

safety_and_cleaning_100x100.jpg

safety_and_cleaning_100x100.jpg

187 ms

3d_glass.png

3d_glass.png

190 ms

brady_32836_img_90.jpg

brady_32836_img_90.jpg

216 ms

21280438_90x90.jpg

21280438_90x90.jpg

220 ms

controlled_environment_main_90.jpg

controlled_environment_main_90.jpg

221 ms

Research_thumb.jpg

Research_thumb.jpg

220 ms

science-delivered-100x100.jpg

science-delivered-100x100.jpg

219 ms

covid_19_90x90.jpg

covid_19_90x90.jpg

219 ms

designed_science_thumbnail_90.png

designed_science_thumbnail_90.png

233 ms

banner_chemcial_corner_70.png

banner_chemcial_corner_70.png

240 ms

611-2536_70.jpg

611-2536_70.jpg

237 ms

611-8461_70.jpg

611-8461_70.jpg

236 ms

banner_chemcial_corner_90_v2.png

banner_chemcial_corner_90_v2.png

234 ms

avantor-fluid-handling-100x100.jpg

avantor-fluid-handling-100x100.jpg

233 ms

mt_rd.png

mt_rd.png

252 ms

EntrisIIBCA90x90.jpg

EntrisIIBCA90x90.jpg

248 ms

seradigm_ultimate_grade_fbs_90x90.jpg

seradigm_ultimate_grade_fbs_90x90.jpg

255 ms

production_segment_2018_90.jpg

production_segment_2018_90.jpg

260 ms

production_chemicals_22803feature_9090.jpg

production_chemicals_22803feature_9090.jpg

256 ms

prod-3rd-col-nitrile-gloves.jpg

prod-3rd-col-nitrile-gloves.jpg

259 ms

mt_qc.png

mt_qc.png

261 ms

f_b_100.jpg

f_b_100.jpg

273 ms

mt_healthcare.png

mt_healthcare.png

136 ms

health_q4_2015_1.jpg

health_q4_2015_1.jpg

118 ms

health_q4_2015_2.jpg

health_q4_2015_2.jpg

118 ms

health_q4_2015_3.jpg

health_q4_2015_3.jpg

150 ms

segment_microbiology_teaser.jpg

segment_microbiology_teaser.jpg

111 ms

microscopy_qc_thumb.jpg

microscopy_qc_thumb.jpg

124 ms

thumbnailbrochure_whitepaper.png

thumbnailbrochure_whitepaper.png

127 ms

insight_tag_errors.gif

insight_tag_errors.gif

194 ms

thumb_segment_education_reversed.png

thumb_segment_education_reversed.png

122 ms

asecos_7070.png

asecos_7070.png

120 ms

vwr_ecommerce_70.jpg

vwr_ecommerce_70.jpg

125 ms

furniture_segment_thumb_012014.png

furniture_segment_thumb_012014.png

128 ms

furniture_q4_2015_1.jpg

furniture_q4_2015_1.jpg

133 ms

furniture_q4_2015_2.jpg

furniture_q4_2015_2.jpg

124 ms

JTBaker-RoboticTips-100x100.jpg

JTBaker-RoboticTips-100x100.jpg

126 ms

vwrcatalyst_services_90.jpg

vwrcatalyst_services_90.jpg

135 ms

avantor_logo_300w.png

avantor_logo_300w.png

140 ms

services_solutions_FR_thumb.jpg

services_solutions_FR_thumb.jpg

105 ms

clinical_trials_70.jpg

clinical_trials_70.jpg

105 ms

vwr_catalyst_70.jpg

vwr_catalyst_70.jpg

116 ms

e_commerce_without_logo_90.jpg

e_commerce_without_logo_90.jpg

115 ms

thumb_tech_serv.png

thumb_tech_serv.png

139 ms

emolecules_rev_thumb.png

emolecules_rev_thumb.png

118 ms

Labtools_Mainthumb.png

Labtools_Mainthumb.png

104 ms

thumb_e_newsletter.jpg

thumb_e_newsletter.jpg

112 ms

308963-B1-1230x400.jpg

308963-B1-1230x400.jpg

121 ms

Sustain_report_banner2024.jpg

Sustain_report_banner2024.jpg

123 ms

308963-B3img.png

308963-B3img.png

118 ms

308963-B4-1230x400.jpg

308963-B4-1230x400.jpg

120 ms

354600-new2.jpg

354600-new2.jpg

112 ms

340494.jpg

340494.jpg

120 ms

300224.jpg

300224.jpg

120 ms

312223.jpg

312223.jpg

123 ms

285455.jpg

285455.jpg

126 ms

322041.jpg

322041.jpg

112 ms

277445newimg.jpg

277445newimg.jpg

115 ms

300159.jpg

300159.jpg

119 ms

298708.jpg

298708.jpg

116 ms

277390.jpg

277390.jpg

118 ms

handy_guides_selection_2021.png

handy_guides_selection_2021.png

108 ms

focus_pharma_2021.png

focus_pharma_2021.png

121 ms

vwr_logo_printheader.jpg

vwr_logo_printheader.jpg

121 ms

helpers.css

helpers.css

30 ms

webfonts.css

webfonts.css

30 ms

jquery-ui.css

jquery-ui.css

25 ms

hinted-Averta-Regular.woff

hinted-Averta-Regular.woff

128 ms

hinted-Averta-Light.woff

hinted-Averta-Light.woff

197 ms

hinted-Averta-Bold.woff

hinted-Averta-Bold.woff

524 ms

jquery-ui.structure.css

jquery-ui.structure.css

31 ms

jquery-ui.theme.css

jquery-ui.theme.css

28 ms

datatables.min.css

datatables.min.css

23 ms

mediagallery2.css

mediagallery2.css

32 ms

jquery.fancybox.min.css

jquery.fancybox.min.css

35 ms

legacy_css.css

legacy_css.css

35 ms

Accessibility Review

ni.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

ni.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

ni.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

    EN

  • Encoding

    UTF-8

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

ni.vwr.com

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