Tools & Wizards About Us

Report Summary

  • 59

    Performance

    Renders faster than
    74% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

ab57.ru

Компьютерный практикум.

Page Load Speed

4.9 sec in total

First Response

523 ms

Resources Loaded

3.5 sec

Page Rendered

847 ms

About Website

Welcome to ab57.ru homepage info - get ready to check Ab 57 best content for Russia right away, or after learning these important things about ab57.ru

Список команд CMD Windows. Примеры командных файлов и работы с командной строкой. Практика восстановления работоспособности систем.

Visit ab57.ru

Key Findings

We analyzed Ab57.ru page load time and found that the first response time was 523 ms and then it took 4.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

ab57.ru performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.2 s

79/100

10%

LCP (Largest Contentful Paint)

Value2.2 s

94/100

25%

SI (Speed Index)

Value5.2 s

59/100

10%

TBT (Total Blocking Time)

Value850 ms

34/100

30%

CLS (Cumulative Layout Shift)

Value0.229

54/100

15%

TTI (Time to Interactive)

Value9.1 s

33/100

10%

Network Requests Diagram

ab57.ru

523 ms

ab57.ru

695 ms

context.js

983 ms

1149268551.js

1492 ms

all.js

953 ms

Our browser made a total of 23 requests to load all elements on the main page. We found that 9% of them (2 requests) were addressed to the original Ab57.ru, 17% (4 requests) were made to Top-fwz1.mail.ru and 17% (4 requests) were made to Site.yandex.net. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Cdn-rtb.sape.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 79.8 kB (25%)

Content Size

314.7 kB

After Optimization

234.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Ab57.ru main page is 314.7 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. 30% of websites need less resources to load. Javascripts take 215.9 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 74.0 kB

  • Original 97.2 kB
  • After minification 95.5 kB
  • After compression 23.2 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 74.0 kB or 76% of the original size.

Image Optimization

-21%

Potential reduce by 348 B

  • Original 1.6 kB
  • After minification 1.3 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, Ab 57 needs image optimization as it can save up to 348 B or 21% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-3%

Potential reduce by 5.5 kB

  • Original 215.9 kB
  • After minification 215.9 kB
  • After compression 210.4 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.

Requests Breakdown

Number of requests can be reduced by 12 (57%)

Requests Now

21

After Optimization

9

  • AJAX
  • Images
  • JavaScript

The browser has sent 21 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ab 57. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

ab57.ru accessibility score

78

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

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

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

ab57.ru best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

ab57.ru SEO score

100

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

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 Ab57.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 Ab57.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 data is detected on the main page of Ab 57. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: