Tools & Wizards About Us
vt-spb.ru screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

vt-spb.ru

ВИБРОТЕХНИК - производитель лабораторного оборудования

Page Load Speed

11.4 sec in total

First Response

523 ms

Resources Loaded

10.4 sec

Page Rendered

423 ms

vt-spb.ru screenshot

About Website

Welcome to vt-spb.ru homepage info - get ready to check Vt Spb best content for Russia right away, or after learning these important things about vt-spb.ru

Официальный сайт ведущего российского разработчика и производителя лабораторного оборудования для измельчения и рассева материалов. Работаем с 1992 года.

Visit vt-spb.ru

Key Findings

We analyzed Vt-spb.ru page load time and found that the first response time was 523 ms and then it took 10.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

vt-spb.ru performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value10.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.9 s

0/100

25%

SI (Speed Index)

Value12.4 s

3/100

10%

TBT (Total Blocking Time)

Value4,860 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.048

99/100

15%

TTI (Time to Interactive)

Value20.1 s

2/100

10%

Network Requests Diagram

vt-spb.ru

523 ms

vt-spb.ru

832 ms

init

1087 ms

vt-spb.ru

342 ms

css

47 ms

Our browser made a total of 340 requests to load all elements on the main page. We found that 91% of them (308 requests) were addressed to the original Vt-spb.ru, 1% (4 requests) were made to Fonts.gstatic.com and 1% (4 requests) were made to Mc.yandex.com. The less responsive or slowest element that took the longest time to load (2.3 sec) belongs to the original domain Vt-spb.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.9 MB (28%)

Content Size

6.6 MB

After Optimization

4.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vt-spb.ru main page is 6.6 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. 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. Images take 4.7 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 477.3 kB

  • Original 545.5 kB
  • After minification 463.6 kB
  • After compression 68.2 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 81.9 kB, which is 15% 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 477.3 kB or 87% of the original size.

Image Optimization

-9%

Potential reduce by 419.2 kB

  • Original 4.7 MB
  • After minification 4.3 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. Vt Spb images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 689.4 kB

  • Original 1.1 MB
  • After minification 988.8 kB
  • After compression 376.4 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 689.4 kB or 65% of the original size.

CSS Optimization

-84%

Potential reduce by 276.7 kB

  • Original 328.8 kB
  • After minification 261.4 kB
  • After compression 52.1 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. Vt-spb.ru needs all CSS files to be minified and compressed as it can save up to 276.7 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 72 (22%)

Requests Now

333

After Optimization

261

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 333 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vt Spb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 43 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

vt-spb.ru

vt-spb.ru

523 ms

vt-spb.ru

vt-spb.ru

832 ms

init

init

1087 ms

vt-spb.ru

vt-spb.ru

342 ms

css

css

47 ms

css

css

64 ms

magnific-popup.min.css

magnific-popup.min.css

41 ms

jquery.mCustomScrollbar.min.css

jquery.mCustomScrollbar.min.css

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ui.design-tokens.min.css

ui.design-tokens.min.css

485 ms

ui.font.opensans.min.css

ui.font.opensans.min.css

521 ms

main.popup.bundle.min.css

main.popup.bundle.min.css

680 ms

style.css

style.css

523 ms

reset.css

reset.css

534 ms

colors.css

colors.css

535 ms

defaultTheme.css

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618 ms

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652 ms

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798 ms

impex-grup.jpg

impex-grup.jpg

796 ms

gxcf3apvmV

gxcf3apvmV

134 ms

rus-olovo.jpg

rus-olovo.jpg

786 ms

su-56.jpg

su-56.jpg

792 ms

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ng-kemikalz.jpg

785 ms

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altaiskie-minerali.jpg

795 ms

bmstu.jpg

bmstu.jpg

800 ms

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Inspectorate_logo.jpg

805 ms

1

1

152 ms

prognoz.jpg

prognoz.jpg

785 ms

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kazakhmys.jpg

796 ms

milord.jpg

milord.jpg

784 ms

terra.png

terra.png

793 ms

ksss.jpg

ksss.jpg

800 ms

kemz.jpg

kemz.jpg

810 ms

1

1

291 ms

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obnovlenie.jpg

780 ms

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zaom.jpg

798 ms

burinteh.jpg

burinteh.jpg

786 ms

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sevmash.jpg

793 ms

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megameid.jpg

799 ms

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stekloplastik.jpg

814 ms

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quadro-decor.jpg

780 ms

alt-logo.jpg

alt-logo.jpg

800 ms

Eremeevskoe.jpg

Eremeevskoe.jpg

785 ms

InzhGieoDrillingh.jpg

InzhGieoDrillingh.jpg

794 ms

ant.jpg

ant.jpg

800 ms

logo.png

logo.png

815 ms

partner.jpg

partner.jpg

777 ms

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lab-21-veka.jpg

795 ms

biyskenenergomash.jpg

biyskenenergomash.jpg

786 ms

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top-logo.jpg

796 ms

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h-logo-min.jpg

804 ms

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815 ms

zdorovie_nacii1-min.jpg

zdorovie_nacii1-min.jpg

782 ms

volgospecsnab-min.jpg

volgospecsnab-min.jpg

799 ms

DNS-min.jpg

DNS-min.jpg

785 ms

deltaMet.jpg

deltaMet.jpg

792 ms

ogneupori.jpg

ogneupori.jpg

802 ms

logodsu.jpg

logodsu.jpg

821 ms

komppos-min.jpg

komppos-min.jpg

780 ms

heidelberg.jpg

heidelberg.jpg

798 ms

cropped-min.jpg

cropped-min.jpg

782 ms

nerungri.jpg

nerungri.jpg

791 ms

bazalt.jpg

bazalt.jpg

802 ms

rusagro-min.jpg

rusagro-min.jpg

815 ms

razbez.jpg

razbez.jpg

781 ms

unnamed_2f242-min.jpg

unnamed_2f242-min.jpg

799 ms

rsfgt-min.jpg

rsfgt-min.jpg

784 ms

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oemk-min.jpg

789 ms

cergr.jpg

cergr.jpg

802 ms

bereleh-min.jpg

bereleh-min.jpg

803 ms

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vniigs-min.jpg

781 ms

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uni-nazarbaev-min.jpg

799 ms

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ralniistroi-min.jpg

782 ms

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zao-zavod-etalon.jpg

788 ms

Micron-min.jpg

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801 ms

specmash-min.jpg

specmash-min.jpg

792 ms

Zapadnaya-min.jpg

Zapadnaya-min.jpg

780 ms

institut-Romana-min.jpg

institut-Romana-min.jpg

797 ms

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784 ms

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785 ms

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800 ms

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795 ms

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780 ms

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799 ms

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razbez.jpg

798 ms

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777 ms

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798 ms

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792 ms

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logo_1-min%20(1)-min.jpg

781 ms

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gaCKGdGQTO8-min.jpg

800 ms

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797 ms

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781 ms

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800 ms

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784 ms

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780 ms

vnigni-min.jpg

vnigni-min.jpg

800 ms

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pro-minerals.jpg

796 ms

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10951.jpg

783 ms

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800 ms

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782 ms

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petromodeling.jpg

779 ms

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799 ms

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logo_berahim-min.jpg

796 ms

lar.jpg

lar.jpg

783 ms

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800 ms

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logo%20(1).jpg

781 ms

omskiy_kauchuk.jpg

omskiy_kauchuk.jpg

778 ms

clati_cfo.jpg

clati_cfo.jpg

799 ms

kuznecov.jpg

kuznecov.jpg

796 ms

cas_rostov.jpg

cas_rostov.jpg

784 ms

kzcdi.jpg

kzcdi.jpg

796 ms

veresk.jpg

veresk.jpg

789 ms

logo-new2.png

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779 ms

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798 ms

promkompl.jpg

promkompl.jpg

793 ms

rks.jpg

rks.jpg

787 ms

KGK.png

KGK.png

794 ms

glencore.jpg

glencore.jpg

793 ms

rob5.jpg

rob5.jpg

779 ms

cataler.jpg

cataler.jpg

821 ms

baubaresources.jpg

baubaresources.jpg

779 ms

intercement.jpg

intercement.jpg

790 ms

RichardsBayMinerals.jpg

RichardsBayMinerals.jpg

791 ms

angloamericanplatinum.jpg

angloamericanplatinum.jpg

796 ms

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evraz-gurevskij-banner-tv-copy-1280x163.png

779 ms

logo.png

logo.png

792 ms

sg_03.gif

sg_03.gif

804 ms

top.jpg

top.jpg

794 ms

IMG_00011.jpg

IMG_00011.jpg

788 ms

AVgroup_4.jpg

AVgroup_4.jpg

798 ms

853188.jpg

853188.jpg

779 ms

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2358846cc03828f861b8c8fbf7eeaa98.jpg

794 ms

logo-min.jpg

logo-min.jpg

802 ms

cvetmet.jpg

cvetmet.jpg

794 ms

KDV.jpg

KDV.jpg

787 ms

logotype.png

logotype.png

803 ms

trigal.jpg

trigal.jpg

782 ms

69511.png

69511.png

793 ms

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807 ms

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799 ms

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787 ms

qaimaq-client-dsl-caspian-1024x598.png

qaimaq-client-dsl-caspian-1024x598.png

804 ms

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783 ms

logo%20(7).png

logo%20(7).png

789 ms

metellaktivgr.png

metellaktivgr.png

810 ms

saria_lo.gif

saria_lo.gif

797 ms

dalpolometall_logo.png

dalpolometall_logo.png

790 ms

287.jpg

287.jpg

796 ms

dalpolometall_logo.png

dalpolometall_logo.png

792 ms

printHeader.jpg

printHeader.jpg

788 ms

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814 ms

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P1h7YyHu5yLt7urz.jpg

799 ms

szpgo_top_ru.png

szpgo_top_ru.png

790 ms

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796 ms

anozit.png

anozit.png

795 ms

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cropped-logo-e1501586264196.png

789 ms

pigment.jpg

pigment.jpg

795 ms

logo.img.png

logo.img.png

798 ms

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253173.jpg

793 ms

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1_value.png

794 ms

716112.jpg

716112.jpg

797 ms

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ekohim.png

791 ms

1187.gk-unihimtek.jpg

1187.gk-unihimtek.jpg

802 ms

title-(1).png

title-(1).png

797 ms

drazhnik.png

drazhnik.png

799 ms

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790 ms

specmat.png

specmat.png

802 ms

buer-300x117.jpg

buer-300x117.jpg

787 ms

logo%20(4).png

logo%20(4).png

807 ms

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799 ms

icon-list.png

icon-list.png

798 ms

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icon-new.png

786 ms

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icon-tech.png

800 ms

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logo-footer.png

784 ms

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up-arrows.png

837 ms

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795 ms

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slide-pattern.png

797 ms

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785 ms

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801 ms

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80 ms

Accessibility Review

vt-spb.ru accessibility score

52

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

vt-spb.ru best practices score

67

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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

vt-spb.ru SEO score

82

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vt-spb.ru can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Vt-spb.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

vt-spb.ru

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