Tools & Wizards About Us

Report Summary

  • 39

    Performance

    Renders faster than
    58% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 92% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

zarnitza.ru

Учебно-лабораторное оборудование и учебно-лабораторные стенды «Зарница» в Москве и по всей России

Page Load Speed

4.2 sec in total

First Response

344 ms

Resources Loaded

3.4 sec

Page Rendered

531 ms

About Website

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

Разрабатываем и производим! Производственное объединение «Зарница» предлагает вам купить учебные стенды и комплекты учебно-лабораторного оборудования с доставкой по Москве и России. Свыше 10 тысяч наи...

Visit zarnitza.ru

Key Findings

We analyzed Zarnitza.ru page load time and found that the first response time was 344 ms and then it took 3.9 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

zarnitza.ru performance score

39

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

55/100

10%

LCP (Largest Contentful Paint)

Value3.1 s

75/100

25%

SI (Speed Index)

Value13.0 s

2/100

10%

TBT (Total Blocking Time)

Value5,400 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.052

99/100

15%

TTI (Time to Interactive)

Value26.3 s

0/100

10%

Network Requests Diagram

zarnitza.ru

344 ms

zarnitza.ru

670 ms

template_0217bf3ca57d524f4d8ae297740f5e03_v1.css

215 ms

core.min.js

538 ms

dexie3.bundle.min.js

434 ms

Our browser made a total of 86 requests to load all elements on the main page. We found that 79% of them (68 requests) were addressed to the original Zarnitza.ru, 12% (10 requests) were made to Google.com and 6% (5 requests) were made to Gstatic.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Zarnitza.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 330.7 kB (8%)

Content Size

3.9 MB

After Optimization

3.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Zarnitza.ru main page is 3.9 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 3.3 MB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 222.3 kB

  • Original 261.4 kB
  • After minification 189.9 kB
  • After compression 39.1 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 71.5 kB, which is 27% 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 222.3 kB or 85% of the original size.

Image Optimization

-2%

Potential reduce by 56.9 kB

  • Original 3.3 MB
  • After minification 3.2 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. Zarnitza images are well optimized though.

JavaScript Optimization

-7%

Potential reduce by 15.9 kB

  • Original 244.5 kB
  • After minification 244.4 kB
  • After compression 228.5 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. This website has mostly compressed JavaScripts.

CSS Optimization

-30%

Potential reduce by 35.6 kB

  • Original 120.2 kB
  • After minification 120.2 kB
  • After compression 84.6 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. Zarnitza.ru needs all CSS files to be minified and compressed as it can save up to 35.6 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (32%)

Requests Now

79

After Optimization

54

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 79 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zarnitza. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

zarnitza.ru accessibility score

97

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.

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

zarnitza.ru best practices score

75

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

zarnitza.ru SEO score

90

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

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

    RU

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zarnitza.ru can be misinterpreted by Google and other search engines. Our service has detected that Russian is used on the page, and it matches the claimed language. Our system also found out that Zarnitza.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

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