Tools & Wizards About Us
history.drofa-ventana.ru screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

history.drofa-ventana.ru

Группа компаний «Просвещение»

Page Load Speed

10.4 sec in total

First Response

682 ms

Resources Loaded

7.7 sec

Page Rendered

2 sec

history.drofa-ventana.ru screenshot

About Website

Welcome to history.drofa-ventana.ru homepage info - get ready to check History Drofa Ventana best content for Russia right away, or after learning these important things about history.drofa-ventana.ru

Официальный сайт группы компаний «Просвещение»

Visit history.drofa-ventana.ru

Key Findings

We analyzed History.drofa-ventana.ru page load time and found that the first response time was 682 ms and then it took 9.7 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

history.drofa-ventana.ru performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.5 s

2/100

10%

LCP (Largest Contentful Paint)

Value23.3 s

0/100

25%

SI (Speed Index)

Value16.2 s

0/100

10%

TBT (Total Blocking Time)

Value7,700 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.035

100/100

15%

TTI (Time to Interactive)

Value33.9 s

0/100

10%

Network Requests Diagram

history.drofa-ventana.ru

682 ms

history.rosuchebnik.ru

677 ms

prosv.ru

1622 ms

4c5e3911531b7883.css

488 ms

7369d1ef80e548de.css

607 ms

Our browser made a total of 137 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original History.drofa-ventana.ru, 71% (97 requests) were made to Prosv.ru and 28% (38 requests) were made to Storage.yandexcloud.net. The less responsive or slowest element that took the longest time to load (3.2 sec) relates to the external source Storage.yandexcloud.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 569.8 kB (21%)

Content Size

2.7 MB

After Optimization

2.1 MB

  • HTML
  • Images

In fact, the total size of History.drofa-ventana.ru main page is 2.7 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. 65% of websites need less resources to load. Images take 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 530.0 kB

  • Original 639.1 kB
  • After minification 638.8 kB
  • After compression 109.1 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. 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 530.0 kB or 83% of the original size.

Image Optimization

-2%

Potential reduce by 39.8 kB

  • Original 2.1 MB
  • After minification 2.0 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. History Drofa Ventana images are well optimized though.

Requests Breakdown

Number of requests can be reduced by 54 (43%)

Requests Now

125

After Optimization

71

  • Images
  • JavaScript
  • CSS

The browser has sent 125 CSS, Javascripts, AJAX and image requests in order to completely render the main page of History Drofa Ventana. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 34 to 1 for JavaScripts and from 22 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

history.drofa-ventana.ru

history.drofa-ventana.ru

682 ms

history.rosuchebnik.ru

history.rosuchebnik.ru

677 ms

prosv.ru

prosv.ru

1622 ms

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488 ms

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607 ms

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Accessibility Review

history.drofa-ventana.ru accessibility score

87

Accessibility Issues

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

Buttons do not have an accessible name

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

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.

Best Practices

history.drofa-ventana.ru best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

history.drofa-ventana.ru SEO score

98

Search Engine Optimization Advices

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 History.drofa-ventana.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 History.drofa-ventana.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

history.drofa-ventana.ru

Open Graph data is detected on the main page of History Drofa Ventana. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: