Tools & Wizards About Us
chem-service.com screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

chem-service.com

Химреактивы, химические реактивы купить в Москве, магазин хим реактивов - продажа химических реагентов | ЗАО Химсервис

Page Load Speed

4 sec in total

First Response

380 ms

Resources Loaded

3.5 sec

Page Rendered

210 ms

chem-service.com screenshot

About Website

Welcome to chem-service.com homepage info - get ready to check Chem Service best content for Russia right away, or after learning these important things about chem-service.com

ЗАО Химсервис - магазин хим реактивов, реализует химреактивы, химические реагенты, реактивы. Продажа химреактивов, цены, купить химреактивы в интернет-магазине.

Visit chem-service.com

Key Findings

We analyzed Chem-service.com page load time and found that the first response time was 380 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

chem-service.com performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.6 s

5/100

10%

LCP (Largest Contentful Paint)

Value10.8 s

0/100

25%

SI (Speed Index)

Value9.1 s

13/100

10%

TBT (Total Blocking Time)

Value420 ms

65/100

30%

CLS (Cumulative Layout Shift)

Value0.024

100/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

chem-service.com

380 ms

chem-service.com

774 ms

kernel_main.css

127 ms

kernel_socialservices.css

250 ms

template_1b7a2def2c48781eff6f0ef6ccebbfb9_d62db78a62aee57a8d278d7bd5e2123f.css

359 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 90% of them (56 requests) were addressed to the original Chem-service.com, 3% (2 requests) were made to Counter.yadro.ru and 2% (1 request) were made to Ajax.googleapis.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Chem-service.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 834.5 kB (47%)

Content Size

1.8 MB

After Optimization

930.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chem-service.com main page is 1.8 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. 35% of websites need less resources to load. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 32.7 kB

  • Original 43.3 kB
  • After minification 38.7 kB
  • After compression 10.6 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 4.6 kB, which is 11% 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 32.7 kB or 75% of the original size.

Image Optimization

-49%

Potential reduce by 784.8 kB

  • Original 1.6 MB
  • After minification 828.3 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, Chem Service needs image optimization as it can save up to 784.8 kB or 49% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-14%

Potential reduce by 13.0 kB

  • Original 91.6 kB
  • After minification 91.6 kB
  • After compression 78.6 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 13.0 kB or 14% of the original size.

CSS Optimization

-23%

Potential reduce by 4.0 kB

  • Original 17.3 kB
  • After minification 17.3 kB
  • After compression 13.3 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. Chem-service.com needs all CSS files to be minified and compressed as it can save up to 4.0 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 7 (13%)

Requests Now

54

After Optimization

47

  • Images
  • JavaScript
  • CSS

The browser has sent 54 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chem Service. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

chem-service.com

chem-service.com

380 ms

chem-service.com

chem-service.com

774 ms

kernel_main.css

kernel_main.css

127 ms

kernel_socialservices.css

kernel_socialservices.css

250 ms

template_1b7a2def2c48781eff6f0ef6ccebbfb9_d62db78a62aee57a8d278d7bd5e2123f.css

template_1b7a2def2c48781eff6f0ef6ccebbfb9_d62db78a62aee57a8d278d7bd5e2123f.css

359 ms

jquery.min.js

jquery.min.js

23 ms

kernel_main.js

kernel_main.js

486 ms

kernel_socialservices.js

kernel_socialservices.js

379 ms

template_9076f3b0117aee0e4910b36160846a07_5e792864cf734a5bdf546a5bf1fc2a2b.js

template_9076f3b0117aee0e4910b36160846a07_5e792864cf734a5bdf546a5bf1fc2a2b.js

496 ms

css

css

42 ms

js

js

66 ms

logo.png

logo.png

247 ms

lang-set.png

lang-set.png

126 ms

sertificat.png

sertificat.png

120 ms

bgmenu.png

bgmenu.png

121 ms

bgsearch.png

bgsearch.png

122 ms

loupe.png

loupe.png

121 ms

lineupslider.png

lineupslider.png

241 ms

e28851bf5b5ea01b79c990900c806f01.jpg

e28851bf5b5ea01b79c990900c806f01.jpg

1066 ms

8de99d547493d621700868c67f5210e7.jpg

8de99d547493d621700868c67f5210e7.jpg

1182 ms

364b55e061949efb7bce02a2a0e99d9e.jpg

364b55e061949efb7bce02a2a0e99d9e.jpg

1192 ms

cf9d9f0f9357f5efc2dad101d36d92ad.gif

cf9d9f0f9357f5efc2dad101d36d92ad.gif

249 ms

6bf8ff6276734b0fcc280ff98db1a161.png

6bf8ff6276734b0fcc280ff98db1a161.png

361 ms

dec33a3e35aff40219f8b2a9790f3c0e.gif

dec33a3e35aff40219f8b2a9790f3c0e.gif

368 ms

1c1c1df3306e80deceb39e8b94cf9219.png

1c1c1df3306e80deceb39e8b94cf9219.png

375 ms

024619650336f2f5f6e515ecf3843262.png

024619650336f2f5f6e515ecf3843262.png

479 ms

a45dabf1e5206c55dc8f90b96e7af091.png

a45dabf1e5206c55dc8f90b96e7af091.png

494 ms

61e0eed3698ed1d0e874ccb303efe9cc.jpg

61e0eed3698ed1d0e874ccb303efe9cc.jpg

499 ms

154535377a0d19c7edbbcbb48e9d5788.gif

154535377a0d19c7edbbcbb48e9d5788.gif

717 ms

46d19fca54d85ec348ab6436599f1722.jpg

46d19fca54d85ec348ab6436599f1722.jpg

617 ms

bar-control-slide.png

bar-control-slide.png

596 ms

offer.png

offer.png

712 ms

callmaneger.png

callmaneger.png

723 ms

productinquiry.png

productinquiry.png

806 ms

smallbskt.png

smallbskt.png

836 ms

lefthead.png

lefthead.png

848 ms

bgli.png

bgli.png

925 ms

certificates.png

certificates.png

960 ms

requisites.png

requisites.png

973 ms

slline.jpg

slline.jpg

1043 ms

slmore.png

slmore.png

1084 ms

slbuy.png

slbuy.png

1100 ms

hline.jpg

hline.jpg

121 ms

f546053fc6167cd8b8aac48fd5a4ebe8.JPG

f546053fc6167cd8b8aac48fd5a4ebe8.JPG

1150 ms

5f4f1aa9df9922bbb8205dcd6855bd9a.jpg

5f4f1aa9df9922bbb8205dcd6855bd9a.jpg

1162 ms

620fd82cf33076594a9a56742d600603.jpg

620fd82cf33076594a9a56742d600603.jpg

1207 ms

50c327c965591b7195aef81643ee11bf.JPG

50c327c965591b7195aef81643ee11bf.JPG

1348 ms

watch.js

watch.js

1 ms

hit

hit

533 ms

PTN57F_W.woff

PTN57F_W.woff

1535 ms

PTN77F_W.woff

PTN77F_W.woff

1654 ms

nsvus.png

nsvus.png

1192 ms

linecheckers.png

linecheckers.png

1194 ms

ispecprice.jpg

ispecprice.jpg

1241 ms

hline.jpg

hline.jpg

1521 ms

irecommendbuy.png

irecommendbuy.png

1193 ms

irecommend.png

irecommend.png

1244 ms

control-slide-active.png

control-slide-active.png

1260 ms

control-slide.png

control-slide.png

1192 ms

arrowleftrect.png

arrowleftrect.png

1243 ms

arrowrightrect.png

arrowrightrect.png

1260 ms

hit

hit

132 ms

Accessibility Review

chem-service.com accessibility score

84

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.

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Links do not have a discernible name

Best Practices

chem-service.com best practices score

50

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

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

chem-service.com SEO score

77

Search Engine Optimization Advices

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    N/A

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Chem-service.com 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 Chem-service.com main page’s claimed encoding is windows-1251. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

chem-service.com

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