Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 55

    SEO

    Google-friendlier than
    20% of websites

opac.skunb.ru

Электронный каталог -СКУНБПоиск- Absopac

Page Load Speed

39.7 sec in total

First Response

3.1 sec

Resources Loaded

36.5 sec

Page Rendered

165 ms

opac.skunb.ru screenshot

About Website

Click here to check amazing Opac Skunb content for Russia. Otherwise, check out these important facts you probably never knew about opac.skunb.ru

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Key Findings

We analyzed Opac.skunb.ru page load time and found that the first response time was 3.1 sec and then it took 36.7 sec to load all DOM resources and completely render a web page. This is an excellent result, as only a small number of websites can load faster. Unfortunately, there was 1 request timeout, which can generally increase the web page load time, as the browser stays idle while waiting for website response.

Performance Metrics

opac.skunb.ru performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value12.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value12.9 s

0/100

25%

SI (Speed Index)

Value14.8 s

1/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value14.5 s

8/100

10%

Network Requests Diagram

opac.skunb.ru

3079 ms

cake.generic.my.css

601 ms

style.css

814 ms

tables.css

425 ms

print.css

634 ms

Our browser made a total of 56 requests to load all elements on the main page. We found that 88% of them (49 requests) were addressed to the original Opac.skunb.ru, 5% (3 requests) were made to Top-fwz1.mail.ru and 4% (2 requests) were made to Informer.yandex.ru. The less responsive or slowest element that took the longest time to load (20.4 sec) relates to the external source Informer.yandex.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (83%)

Content Size

1.6 MB

After Optimization

276.8 kB

In fact, the total size of Opac.skunb.ru main page is 1.6 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. 15% of websites need less resources to load. Javascripts take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 37.7 kB

  • Original 46.4 kB
  • After minification 45.8 kB
  • After compression 8.7 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 37.7 kB or 81% of the original size.

Image Optimization

-14%

Potential reduce by 140 B

  • Original 1.0 kB
  • After minification 866 B

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, Opac Skunb needs image optimization as it can save up to 140 B or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-83%

Potential reduce by 1.2 MB

  • Original 1.5 MB
  • After minification 887.2 kB
  • After compression 248.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 1.2 MB or 83% of the original size.

CSS Optimization

-83%

Potential reduce by 88.5 kB

  • Original 107.3 kB
  • After minification 97.1 kB
  • After compression 18.8 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. Opac.skunb.ru needs all CSS files to be minified and compressed as it can save up to 88.5 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (79%)

Requests Now

52

After Optimization

11

The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Opac Skunb. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

opac.skunb.ru accessibility score

65

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

Internationalization and localization

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

Impact

Issue

High

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

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

Form elements do not have associated labels

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

opac.skunb.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

opac.skunb.ru SEO score

55

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

Language and Encoding

  • Language Detected

    RU

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Opac.skunb.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 Opac.skunb.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 Opac Skunb. 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: