Report Summary

  • 99

    Performance

    Renders faster than
    96% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 62

    SEO

    Google-friendlier than
    22% of websites

sch57.ru

Пятьдесят седьмая школа

Page Load Speed

1.7 sec in total

First Response

494 ms

Resources Loaded

1.1 sec

Page Rendered

161 ms

sch57.ru screenshot

About Website

Visit sch57.ru now to see the best up-to-date Sch 57 content for Russia and also check out these interesting facts you probably never knew about sch57.ru

Сайт Пятьдесят седьмой школы: новости, приём в школу, жизнь школы, поездки и фотографии. Статьи и книги учителей школы.

Visit sch57.ru

Key Findings

We analyzed Sch57.ru page load time and found that the first response time was 494 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

sch57.ru performance score

99

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.6 s

94/100

10%

LCP (Largest Contentful Paint)

Value1.6 s

99/100

25%

SI (Speed Index)

Value2.7 s

96/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value1.6 s

100/100

10%

Network Requests Diagram

sch57.ru

494 ms

main.css

139 ms

album.css

269 ms

jquery.fancybox-1.3.4.css

273 ms

common.js

274 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that all of those requests were addressed to Sch57.ru and no external sources were called. The less responsive or slowest element that took the longest time to load (494 ms) belongs to the original domain Sch57.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 83.1 kB (48%)

Content Size

172.4 kB

After Optimization

89.3 kB

In fact, the total size of Sch57.ru main page is 172.4 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. Only 10% of websites need less resources to load. Javascripts take 101.0 kB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 5.7 kB

  • Original 8.5 kB
  • After minification 8.2 kB
  • After compression 2.8 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 5.7 kB or 67% of the original size.

Image Optimization

-0%

Potential reduce by 177 B

  • Original 48.9 kB
  • After minification 48.7 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. Sch 57 images are well optimized though.

JavaScript Optimization

-65%

Potential reduce by 65.9 kB

  • Original 101.0 kB
  • After minification 100.4 kB
  • After compression 35.1 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 65.9 kB or 65% of the original size.

CSS Optimization

-81%

Potential reduce by 11.4 kB

  • Original 14.1 kB
  • After minification 10.7 kB
  • After compression 2.7 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. Sch57.ru needs all CSS files to be minified and compressed as it can save up to 11.4 kB or 81% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

12

After Optimization

12

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sch 57. According to our analytics all requests are already optimized.

Accessibility Review

sch57.ru accessibility score

94

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

Links do not have a discernible name

Best Practices

sch57.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

SEO Factors

sch57.ru SEO score

62

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

Document doesn't have a valid hreflang

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    RU

  • Encoding

    KOI8-R

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sch57.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 Sch57.ru main page’s claimed encoding is koi8-r. 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

Open Graph description is not detected on the main page of Sch 57. 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: