Access bymath.net. Вся элементарная математика - Средняя математическая интернет-школа

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

89/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

95/100

25%

SI (Speed Index)

Value3.8 s

83/100

10%

TBT (Total Blocking Time)

Value880 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value7.6 s

47/100

10%

bymath.net

231 ms

style.css

341 ms

show_ads.js

7 ms

logoleft.png

367 ms

logorigth.png

368 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 20% of them (16 requests) were addressed to the original Bymath.net, 8% (6 requests) were made to Pagead2.googlesyndication.com and 8% (6 requests) were made to Googleads.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (659 ms) relates to the external source U6894.96.spylog.com.

Content Size

648.9 kB

After Optimization

479.2 kB

In fact, the total size of Bymath.net main page is 648.9 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. 40% of websites need less resources to load. Images take 409.5 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 27.1 kB

Original 34.3 kB
After minification 27.8 kB
After compression 7.1 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 6.5 kB, which is 19% 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 27.1 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 21.1 kB

Original 409.5 kB
After minification 388.4 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. Bymath images are well optimized though.

JavaScript Optimization

-59%

Potential reduce by 121.0 kB

Original 204.3 kB
After minification 195.3 kB
After compression 83.3 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 121.0 kB or 59% of the original size.

CSS Optimization

-56%

Potential reduce by 489 B

Original 871 B
After minification 721 B
After compression 382 B

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. Bymath.net needs all CSS files to be minified and compressed as it can save up to 489 B or 56% of the original size.

Requests Now

After Optimization

The browser has sent 70 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bymath. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 20 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-*] attributes do not match their roles

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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

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

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

High

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

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

High

Browser errors were logged to the console

Search Engine Optimization Advices

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 Bymath.net 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 Bymath.net 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

bymath.net

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

Вся элементарная математика - Средняя математическая интернет-школа

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

bymath.net

style.css

show_ads.js

logoleft.png

logorigth.png

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

bymath.net

style.css

show_ads.js

logoleft.png

logorigth.png

searchsite.png

videodisk.jpg

banner-88x31-rambler-green2.gif

ab0.png

www.bymath.net

logofon.png

go.png

uroki.gif

studyguide.png

studyguidecontent.png

problems.png

problemscontent.png

testsexams.png

testscontent.png

great_names.gif

ca-pub-3214015496007418.js

zrt_lookup.html

show_ads_impl.js

12102.js

cnt

hit

ga.js

ads

__utm.gif

osd.js

ads

ads

adj

beacon

12102.js

css

m_js_controller.js

abg.js

hit

dvbs_src.js

verify_selector.js

blank.gif

beacon.js