Access sarov-school20.ru. Официальный сайт Муниципального бюджетного общеобразовательного учреждения "Школа № 20" города Саров...

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

78/100

10%

LCP (Largest Contentful Paint)

Value2.3 s

94/100

25%

SI (Speed Index)

Value4.8 s

67/100

10%

TBT (Total Blocking Time)

Value130 ms

96/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value7.4 s

48/100

10%

sarov-school20.ru

439 ms

analytics.js

137 ms

bundle-playback.js

206 ms

wombat.js

221 ms

ruffle.js

226 ms

Our browser made a total of 101 requests to load all elements on the main page. We found that 36% of them (36 requests) were addressed to the original Sarov-school20.ru, 42% (42 requests) were made to Edusarov.ru and 11% (11 requests) were made to Archive.org. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Pravo.gov.ru.

Content Size

1.3 MB

After Optimization

1.1 MB

In fact, the total size of Sarov-school20.ru main page is 1.3 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 1.0 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 81.5 kB

Original 101.0 kB
After minification 89.8 kB
After compression 19.5 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 11.2 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 81.5 kB or 81% of the original size.

Image Optimization

-11%

Potential reduce by 109.9 kB

Original 1.0 MB
After minification 929.6 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, Sarovschool 20 needs image optimization as it can save up to 109.9 kB or 11% 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 27.5 kB

Original 203.1 kB
After minification 203.1 kB
After compression 175.6 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 27.5 kB or 14% of the original size.

CSS Optimization

-28%

Potential reduce by 1.4 kB

Original 4.9 kB
After minification 4.9 kB
After compression 3.6 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. Sarov-school20.ru needs all CSS files to be minified and compressed as it can save up to 1.4 kB or 28% of the original size.

Requests Now

After Optimization

The browser has sent 62 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sarovschool 20. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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

High

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

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.

High

Image elements do not have [alt] attributes

High

<input type="image"> elements do not have [alt] text

High

Form elements do not have associated labels

High

Links do not have a discernible name

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links are not crawlable

High

robots.txt is not valid

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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 Sarov-school20.ru 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 Sarov-school20.ru 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

sarov-school20.ru

Open Graph description is not detected on the main page of Sarovschool 20. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Официальный сайт Муниципального бюджетного общеобразовательного учреждения "Школа № 20" города Сарова

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

sarov-school20.ru

analytics.js

bundle-playback.js

wombat.js

ruffle.js

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

sarov-school20.ru

analytics.js

bundle-playback.js

wombat.js

ruffle.js

banner-styles.css

iconochive.css

index.php

engine.css

jquery.min.js

watch.js

uGost31.js

sarov-school20.ru

sarov-school20.ru

sarov-school20.ru

style.css

sarov-school20.ru

donate.php

gor-line-ex2017-1.jpg

family.png

vse_ros_kon_so16.png

1.png

3_1_FFFFFFFF_EFEFEFFF_0_pageviews

20ministerstvo.jpg

1_Fed_sl_nadz.jpg

MINOBR_TWITT.jpg

ico.jpg

14pravitNN.jpg

25minobr.jpg

NIRO_NN.jpg

ROSATOM.jpg

NEWS_RUS.jpg

ban_in_razvit.jpg

edutainme.jpg

Edin_kollekciya.jpg

Edin_okno_dostupa_O_R.jpg

Fed_sentr_I_O_R.jpg

Big_pravit.jpg

OB_obrazovanii_1.jpg

6777.png

RG_RU.jpg

dnevnik.jpg

EG_RU.jpg