Tools & Wizards About Us
chemical.ru screenshot

Report Summary

  • 26

    Performance

    Renders faster than
    46% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 35% of websites

  • 58

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 89

    SEO

    Google-friendlier than
    67% of websites

chemical.ru

Химико-лабораторная продукция, купить в компании «Химреактивснаб»

Page Load Speed

10.9 sec in total

First Response

1.5 sec

Resources Loaded

8.9 sec

Page Rendered

467 ms

chemical.ru screenshot

About Website

Click here to check amazing Chemical content for Russia. Otherwise, check out these important facts you probably never knew about chemical.ru

Продажа химико-лабораторной продукции с доставкой по России от компании «Химреактивснаб».

Visit chemical.ru

Key Findings

We analyzed Chemical.ru page load time and found that the first response time was 1.5 sec and then it took 9.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

chemical.ru performance score

26

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

34/100

10%

LCP (Largest Contentful Paint)

Value8.3 s

2/100

25%

SI (Speed Index)

Value7.9 s

23/100

10%

TBT (Total Blocking Time)

Value1,420 ms

15/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value15.9 s

6/100

10%

Network Requests Diagram

chemical.ru

1488 ms

www.chemical.ru

5408 ms

css

175 ms

css

273 ms

kernel_main.css

430 ms

Our browser made a total of 46 requests to load all elements on the main page. We found that 17% of them (8 requests) were addressed to the original Chemical.ru, 26% (12 requests) were made to Chemical.ru.images.1c-bitrix-cdn.ru and 13% (6 requests) were made to Chemical.ru.css.1c-bitrix-cdn.ru. The less responsive or slowest element that took the longest time to load (5.4 sec) belongs to the original domain Chemical.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 293.8 kB (54%)

Content Size

540.7 kB

After Optimization

246.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemical.ru main page is 540.7 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. 30% of websites need less resources to load. Javascripts take 341.7 kB which makes up the majority of the site volume.

HTML Optimization

-69%

Potential reduce by 14.7 kB

  • Original 21.3 kB
  • After minification 20.1 kB
  • After compression 6.5 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 14.7 kB or 69% of the original size.

Image Optimization

-19%

Potential reduce by 30.2 kB

  • Original 156.3 kB
  • After minification 126.2 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. Obviously, Chemical needs image optimization as it can save up to 30.2 kB or 19% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-68%

Potential reduce by 232.1 kB

  • Original 341.7 kB
  • After minification 341.6 kB
  • After compression 109.5 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 232.1 kB or 68% of the original size.

CSS Optimization

-78%

Potential reduce by 16.7 kB

  • Original 21.4 kB
  • After minification 18.8 kB
  • After compression 4.7 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. Chemical.ru needs all CSS files to be minified and compressed as it can save up to 16.7 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (49%)

Requests Now

35

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 35 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chemical. 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 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chemical.ru

chemical.ru

1488 ms

www.chemical.ru

www.chemical.ru

5408 ms

css

css

175 ms

css

css

273 ms

kernel_main.css

kernel_main.css

430 ms

template_017e9586467421f478c4f56afb6c44ed.css

template_017e9586467421f478c4f56afb6c44ed.css

442 ms

kernel_main.js

kernel_main.js

677 ms

template_b66752fb885f6d3367ea7ad1dd21ac1e.js

template_b66752fb885f6d3367ea7ad1dd21ac1e.js

553 ms

css

css

33 ms

css

css

57 ms

css

css

57 ms

ba.js

ba.js

1282 ms

ga.js

ga.js

237 ms

2744a3d9f9f27a8c8aaa52650c4daa98.jpg

2744a3d9f9f27a8c8aaa52650c4daa98.jpg

870 ms

search_button.gif

search_button.gif

157 ms

cycounter

cycounter

407 ms

links_catalog.gif

links_catalog.gif

204 ms

d7a2dd8860174b02cbaae964d4c488c9.gif

d7a2dd8860174b02cbaae964d4c488c9.gif

542 ms

992610562a430c4893504e60698b0a7b.gif

992610562a430c4893504e60698b0a7b.gif

546 ms

497c1852b994b32a1ac80d70918f6675.gif

497c1852b994b32a1ac80d70918f6675.gif

546 ms

5b36db09e88848222bf10c5a16397830.gif

5b36db09e88848222bf10c5a16397830.gif

547 ms

9b30a689d1c2c0404aa5373b365d0df1.gif

9b30a689d1c2c0404aa5373b365d0df1.gif

554 ms

2ee30742678c31071cd987e9db7ab9af.gif

2ee30742678c31071cd987e9db7ab9af.gif

652 ms

90817bfb96100d1da3b407abfc3ab54f.png

90817bfb96100d1da3b407abfc3ab54f.png

757 ms

fdea6d1b8ec6b1943747c30d884b19c9.jpg

fdea6d1b8ec6b1943747c30d884b19c9.jpg

749 ms

black-cart.png

black-cart.png

129 ms

h2_bg.gif

h2_bg.gif

258 ms

h2_bg.gif

h2_bg.gif

258 ms

links_help.gif

links_help.gif

400 ms

links_pusk.gif

links_pusk.gif

388 ms

map.gif

map.gif

540 ms

pkYDSlCHbDnBWPT5PPFFTA.ttf

pkYDSlCHbDnBWPT5PPFFTA.ttf

277 ms

g46X4VH_KHOWAAa-HpnGPi3USBnSvpkopQaUR-2r7iU.ttf

g46X4VH_KHOWAAa-HpnGPi3USBnSvpkopQaUR-2r7iU.ttf

379 ms

Q-gJrFokeE7JydPpxASt2w2IYcHYtuwSj-oRP2VhBQU.ttf

Q-gJrFokeE7JydPpxASt2w2IYcHYtuwSj-oRP2VhBQU.ttf

501 ms

OXYTDOzBcXU8MTNBvBHeSZdO5s5L0c0oSx6swJ31p1c.ttf

OXYTDOzBcXU8MTNBvBHeSZdO5s5L0c0oSx6swJ31p1c.ttf

461 ms

3219e5d7d9b1a3a10c6f28884a19f37e.png

3219e5d7d9b1a3a10c6f28884a19f37e.png

633 ms

9a59cb6eccda043668795f588b254629.png

9a59cb6eccda043668795f588b254629.png

641 ms

e7ba06ba74e1917577d1acebb5197db8.png

e7ba06ba74e1917577d1acebb5197db8.png

724 ms

bestweb.png

bestweb.png

372 ms

hit

hit

382 ms

watch.js

watch.js

1 ms

n3KBvfEQkw

n3KBvfEQkw

350 ms

__utm.gif

__utm.gif

41 ms

h2_bg.gif

h2_bg.gif

390 ms

collect

collect

240 ms

widget_ru_RU.js

widget_ru_RU.js

216 ms

Accessibility Review

chemical.ru accessibility score

69

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-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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.

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

<dl>'s do not contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

chemical.ru best practices score

58

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

chemical.ru SEO score

89

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

Image elements do not have [alt] attributes

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

    RU

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chemical.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Chemical.ru 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

chemical.ru

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