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chemcentral.com screenshot

Report Summary

  • 48

    Performance

    Renders faster than
    66% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 74

    SEO

    Google-friendlier than
    31% of websites

chemcentral.com

Chemical Distribution and Ingredient Supplier | ChemCentral Marketplace | ChemCentral.com

Page Load Speed

2.2 sec in total

First Response

55 ms

Resources Loaded

2 sec

Page Rendered

190 ms

chemcentral.com screenshot

About Website

Welcome to chemcentral.com homepage info - get ready to check Chem Central best content right away, or after learning these important things about chemcentral.com

ChemCentral Marketplace is a chemical distributor and ingredient supply company, offering a portfolio of chemical and ingredient products from a trusted source.

Visit chemcentral.com

Key Findings

We analyzed Chemcentral.com page load time and found that the first response time was 55 ms and then it took 2.2 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

chemcentral.com performance score

48

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.2 s

44/100

10%

LCP (Largest Contentful Paint)

Value11.9 s

0/100

25%

SI (Speed Index)

Value6.9 s

33/100

10%

TBT (Total Blocking Time)

Value280 ms

81/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value13.1 s

12/100

10%

Network Requests Diagram

chemcentral.com

55 ms

chemcentral.com

54 ms

www.chemcentral.com

302 ms

calendar.css

41 ms

styles-m.css

55 ms

Our browser made a total of 190 requests to load all elements on the main page. We found that all of those requests were addressed to Chemcentral.com and no external sources were called. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Chemcentral.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 216.8 kB (65%)

Content Size

332.0 kB

After Optimization

115.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemcentral.com main page is 332.0 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. HTML takes 257.7 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 216.8 kB

  • Original 257.7 kB
  • After minification 211.9 kB
  • After compression 40.9 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. This page needs HTML code to be minified as it can gain 45.8 kB, which is 18% 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 216.8 kB or 84% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 49.5 kB
  • After minification 49.5 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. Chem Central images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 17 B

  • Original 655 B
  • After minification 655 B
  • After compression 638 B

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

-0%

Potential reduce by 0 B

  • Original 24.2 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.

Requests Breakdown

Number of requests can be reduced by 162 (91%)

Requests Now

178

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 178 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chem Central. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 160 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chemcentral.com

chemcentral.com

55 ms

chemcentral.com

chemcentral.com

54 ms

www.chemcentral.com

www.chemcentral.com

302 ms

calendar.css

calendar.css

41 ms

styles-m.css

styles-m.css

55 ms

styles-l.css

styles-l.css

84 ms

require.js

require.js

110 ms

mixins.js

mixins.js

112 ms

requirejs-config.js

requirejs-config.js

115 ms

find.js

find.js

114 ms

%7B%7BMEDIA_URL%7D%7Dstyles.css

%7B%7BMEDIA_URL%7D%7Dstyles.css

1142 ms

email-decode.min.js

email-decode.min.js

111 ms

jquery.js

jquery.js

32 ms

common.js

common.js

50 ms

dataPost.js

dataPost.js

44 ms

bootstrap.js

bootstrap.js

44 ms

app.js

app.js

43 ms

form-key-provider.js

form-key-provider.js

63 ms

mage-translation-dictionary.js

mage-translation-dictionary.js

64 ms

compat.js

compat.js

94 ms

jquery.validate.js

jquery.validate.js

64 ms

translate.js

translate.js

86 ms

jquery.autocomplete.js

jquery.autocomplete.js

92 ms

add-webp-class-to-body.js

add-webp-class-to-body.js

93 ms

theme.js

theme.js

102 ms

jquery-migrate.js

jquery-migrate.js

93 ms

template.js

template.js

108 ms

widget.js

widget.js

122 ms

main.js

main.js

125 ms

bootstrap.js

bootstrap.js

87 ms

domReady.js

domReady.js

129 ms

jquery-mixin.js

jquery-mixin.js

123 ms

confirm.js

confirm.js

130 ms

confirm-mixin.js

confirm-mixin.js

154 ms

types.js

types.js

155 ms

layout.js

layout.js

157 ms

text.js

text.js

179 ms

jquery.metadata.js

jquery.metadata.js

144 ms

mage.js

mage.js

140 ms

underscore.js

underscore.js

142 ms

core.js

core.js

146 ms

accordion.js

accordion.js

139 ms

autocomplete.js

autocomplete.js

154 ms

button.js

button.js

160 ms

datepicker.js

datepicker.js

166 ms

dialog.js

dialog.js

182 ms

draggable.js

draggable.js

190 ms

droppable.js

droppable.js

177 ms

effect-blind.js

effect-blind.js

191 ms

effect-bounce.js

effect-bounce.js

192 ms

effect-clip.js

effect-clip.js

208 ms

effect-drop.js

effect-drop.js

232 ms

effect-explode.js

effect-explode.js

220 ms

effect-fade.js

effect-fade.js

221 ms

effect-fold.js

effect-fold.js

222 ms

effect-highlight.js

effect-highlight.js

242 ms

effect-scale.js

effect-scale.js

296 ms

effect-pulsate.js

effect-pulsate.js

250 ms

effect-shake.js

effect-shake.js

249 ms

effect-slide.js

effect-slide.js

317 ms

effect-transfer.js

effect-transfer.js

235 ms

effect.js

effect.js

256 ms

menu.js

menu.js

237 ms

mouse.js

mouse.js

225 ms

position.js

position.js

254 ms

progressbar.js

progressbar.js

251 ms

resizable.js

resizable.js

238 ms

selectable.js

selectable.js

251 ms

selectmenu.js

selectmenu.js

240 ms

sortable.js

sortable.js

256 ms

spinner.js

spinner.js

248 ms

tabs.js

tabs.js

245 ms

timepicker.js

timepicker.js

238 ms

tooltip.js

tooltip.js

234 ms

smart-keyboard-handler.js

smart-keyboard-handler.js

247 ms

ie-class-fixer.js

ie-class-fixer.js

247 ms

has-webp.js

has-webp.js

283 ms

knockout.js

knockout.js

247 ms

knockout-es5.js

knockout-es5.js

242 ms

engine.js

engine.js

263 ms

bootstrap.js

bootstrap.js

249 ms

observable_array.js

observable_array.js

257 ms

bound-nodes.js

bound-nodes.js

240 ms

wrapper.js

wrapper.js

264 ms

version.js

version.js

273 ms

scripts.js

scripts.js

242 ms

modal.js

modal.js

243 ms

publisher.js

publisher.js

247 ms

main.js

main.js

246 ms

registry.js

registry.js

257 ms

console-logger.js

console-logger.js

239 ms

keycode.js

keycode.js

243 ms

unique-id.js

unique-id.js

245 ms

js-translation.json

js-translation.json

240 ms

data.js

data.js

220 ms

disable-selection.js

disable-selection.js

227 ms

focusable.js

focusable.js

245 ms

form.js

form.js

234 ms

ie.js

ie.js

219 ms

labels.js

labels.js

216 ms

jquery-patch.js

jquery-patch.js

223 ms

plugin.js

plugin.js

241 ms

safe-active-element.js

safe-active-element.js

238 ms

safe-blur.js

safe-blur.js

229 ms

scroll-parent.js

scroll-parent.js

236 ms

tabbable.js

tabbable.js

238 ms

controlgroup.js

controlgroup.js

233 ms

checkboxradio.js

checkboxradio.js

228 ms

jquery-var-for-color.js

jquery-var-for-color.js

230 ms

jquery.color.js

jquery.color.js

234 ms

effect-size.js

effect-size.js

232 ms

form-reset-mixin.js

form-reset-mixin.js

245 ms

knockout-repeat.js

knockout-repeat.js

205 ms

knockout-fast-foreach.js

knockout-fast-foreach.js

201 ms

events.js

events.js

232 ms

renderer.js

renderer.js

212 ms

resizable.js

resizable.js

223 ms

i18n.js

i18n.js

239 ms

scope.js

scope.js

216 ms

range.js

range.js

215 ms

mage-init.js

mage-init.js

218 ms

keyboard.js

keyboard.js

231 ms

optgroup.js

optgroup.js

221 ms

after-render.js

after-render.js

236 ms

autoselect.js

autoselect.js

227 ms

datepicker.js

datepicker.js

221 ms

outer_click.js

outer_click.js

229 ms

fadeVisible.js

fadeVisible.js

232 ms

collapsible.js

collapsible.js

225 ms

staticChecked.js

staticChecked.js

234 ms

simple-checked.js

simple-checked.js

220 ms

bind-html.js

bind-html.js

218 ms

tooltip.js

tooltip.js

226 ms

color-picker.js

color-picker.js

225 ms

observable_source.js

observable_source.js

225 ms

modal-popup.html

modal-popup.html

268 ms

modal-slide.html

modal-slide.html

224 ms

modal-custom.html

modal-custom.html

263 ms

key-codes.js

key-codes.js

225 ms

z-index.js

z-index.js

201 ms

require-optional.js

require-optional.js

215 ms

arrays.js

arrays.js

225 ms

compare.js

compare.js

235 ms

misc.js

misc.js

244 ms

objects.js

objects.js

218 ms

strings.js

strings.js

227 ms

template.js

template.js

233 ms

local.js

local.js

248 ms

logger.js

logger.js

227 ms

entry-factory.js

entry-factory.js

247 ms

console-output-handler.js

console-output-handler.js

236 ms

formatter.js

formatter.js

228 ms

message-pool.js

message-pool.js

258 ms

levels-pool.js

levels-pool.js

255 ms

logger-utils.js

logger-utils.js

253 ms

loader.js

loader.js

250 ms

async.js

async.js

234 ms

tooltip.html

tooltip.html

205 ms

spectrum.js

spectrum.js

202 ms

tinycolor.js

tinycolor.js

185 ms

class.js

class.js

186 ms

google-tag-manager.js

google-tag-manager.js

153 ms

moment.js

moment.js

93 ms

entry.js

entry.js

82 ms

ChemCentral_MarketplaceLogo_KO_Final.svg

ChemCentral_MarketplaceLogo_KO_Final.svg

70 ms

US_flag.png

US_flag.png

79 ms

silverdrum_univar.png

silverdrum_univar.png

107 ms

propylene_glycol_usp_kosher_99_480_chem.png

propylene_glycol_usp_kosher_99_480_chem.png

79 ms

bag_univar_1.png

bag_univar_1.png

119 ms

ethylene_glycol_99_515_chem.png

ethylene_glycol_99_515_chem.png

182 ms

polydrum_univar_3.png

polydrum_univar_3.png

246 ms

image_4_.png

image_4_.png

122 ms

am-recaptcha.js

am-recaptcha.js

93 ms

opensans-400.woff

opensans-400.woff

133 ms

opensans-300.woff

opensans-300.woff

217 ms

opensans-600.woff

opensans-600.woff

145 ms

opensans-700.woff

opensans-700.woff

367 ms

fa-regular-400.woff

fa-regular-400.woff

170 ms

fa-light-300.woff

fa-light-300.woff

165 ms

fa-solid-900.woff

fa-solid-900.woff

216 ms

dom-observer.js

dom-observer.js

193 ms

bindings.js

bindings.js

193 ms

Luma-Icons.woff

Luma-Icons.woff

231 ms

cookies.js

cookies.js

218 ms

image_4_-min.png

image_4_-min.png

151 ms

chemcentral-gtm.js

chemcentral-gtm.js

148 ms

main.js

main.js

20 ms

cookie-wrapper.js

cookie-wrapper.js

24 ms

js.cookie.js

js.cookie.js

27 ms

print.css

print.css

23 ms

Accessibility Review

chemcentral.com accessibility score

82

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

ARIA IDs are not unique

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

Low

No form fields have multiple labels

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

chemcentral.com best practices score

75

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

Browser errors were logged to the console

High

Page has valid source maps

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

chemcentral.com SEO score

74

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

High

Image elements do not have [alt] attributes

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Chemcentral.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 Chemcentral.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

chemcentral.com

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