Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 72

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

zdspb.ru

Срок регистрации домена истек

Page Load Speed

7.7 sec in total

First Response

1.1 sec

Resources Loaded

5.6 sec

Page Rendered

936 ms

zdspb.ru screenshot

About Website

Click here to check amazing Zdspb content for Russia. Otherwise, check out these important facts you probably never knew about zdspb.ru

Срок регистрации домена истек. Требуется продление, чтобы возобновить работу домена и его сервисов

Visit zdspb.ru

Key Findings

We analyzed Zdspb.ru page load time and found that the first response time was 1.1 sec and then it took 6.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

zdspb.ru performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value6.8 s

2/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value12.8 s

2/100

10%

TBT (Total Blocking Time)

Value1,240 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.037

100/100

15%

TTI (Time to Interactive)

Value16.3 s

5/100

10%

Network Requests Diagram

zdspb.ru

1132 ms

css

27 ms

css

40 ms

230 ms

jquery-1.8.3.min.js

401 ms

Our browser made a total of 165 requests to load all elements on the main page. We found that 61% of them (101 requests) were addressed to the original Zdspb.ru, 13% (22 requests) were made to Zdspb.spb.ru.images.1c-bitrix-cdn.ru and 4% (7 requests) were made to Api-maps.yandex.ru. The less responsive or slowest element that took the longest time to load (1.5 sec) relates to the external source Zdspb.spb.ru.images.1c-bitrix-cdn.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.8 MB (57%)

Content Size

3.2 MB

After Optimization

1.3 MB

In fact, the total size of Zdspb.ru main page is 3.2 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. 70% of websites need less resources to load. Javascripts take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 121.4 kB

  • Original 150.0 kB
  • After minification 139.1 kB
  • After compression 28.7 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 121.4 kB or 81% of the original size.

Image Optimization

-11%

Potential reduce by 104.9 kB

  • Original 928.0 kB
  • After minification 823.1 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, Zdspb needs image optimization as it can save up to 104.9 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

-75%

Potential reduce by 1.3 MB

  • Original 1.8 MB
  • After minification 1.4 MB
  • After compression 441.8 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 1.3 MB or 75% of the original size.

CSS Optimization

-85%

Potential reduce by 262.4 kB

  • Original 310.2 kB
  • After minification 235.4 kB
  • After compression 47.8 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. Zdspb.ru needs all CSS files to be minified and compressed as it can save up to 262.4 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 99 (63%)

Requests Now

156

After Optimization

57

The browser has sent 156 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zdspb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 50 to 1 for JavaScripts and from 31 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

zdspb.ru accessibility score

72

Accessibility Issues

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.

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

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

zdspb.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

High

Browser errors were logged to the console

SEO Factors

zdspb.ru SEO score

83

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

Image elements do not have [alt] attributes

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

    JA

  • Language Claimed

    RU

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Zdspb.ru can be misinterpreted by Google and other search engines. Our service has detected that Japanese is used on the page, and it does not match the claimed Russian language. Our system also found out that Zdspb.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 description is not detected on the main page of Zdspb. 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: