Report Summary

  • 37

    Performance

    Renders faster than
    56% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

orenlib.ru

Оренбургская областная универсальная научная библиотека им. Н.К. Крупской

Page Load Speed

7.6 sec in total

First Response

490 ms

Resources Loaded

6.4 sec

Page Rendered

726 ms

orenlib.ru screenshot

About Website

Visit orenlib.ru now to see the best up-to-date Orenlib content for Russia and also check out these interesting facts you probably never knew about orenlib.ru

Общие сведения о библиотеке. Правила пользования, режим работы, услуги. Электронные каталоги и базы данных библиотеки. Полнотекстовые базы данных. Афиша мероприятий. Виртуальная справка.

Visit orenlib.ru

Key Findings

We analyzed Orenlib.ru page load time and found that the first response time was 490 ms and then it took 7.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 85% of websites can load faster.

Performance Metrics

orenlib.ru performance score

37

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

56/100

10%

LCP (Largest Contentful Paint)

Value16.1 s

0/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value410 ms

66/100

30%

CLS (Cumulative Layout Shift)

Value0.196

63/100

15%

TTI (Time to Interactive)

Value13.3 s

12/100

10%

Network Requests Diagram

orenlib.ru

490 ms

orenlib.ru

992 ms

jquery-1.js

408 ms

jquery.colorbox.js

367 ms

script.js

366 ms

Our browser made a total of 155 requests to load all elements on the main page. We found that 87% of them (135 requests) were addressed to the original Orenlib.ru, 3% (5 requests) were made to Elibrary.orenlib.ru and 3% (5 requests) were made to Top-fwz1.mail.ru. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Orenlib.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 538.9 kB (10%)

Content Size

5.6 MB

After Optimization

5.1 MB

In fact, the total size of Orenlib.ru main page is 5.6 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. 70% of websites need less resources to load. Images take 5.2 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 77.8 kB

  • Original 97.2 kB
  • After minification 89.3 kB
  • After compression 19.4 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 77.8 kB or 80% of the original size.

Image Optimization

-7%

Potential reduce by 370.5 kB

  • Original 5.2 MB
  • After minification 4.9 MB

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. Orenlib images are well optimized though.

JavaScript Optimization

-33%

Potential reduce by 83.1 kB

  • Original 252.1 kB
  • After minification 252.1 kB
  • After compression 169.0 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 83.1 kB or 33% of the original size.

CSS Optimization

-27%

Potential reduce by 7.4 kB

  • Original 27.5 kB
  • After minification 27.5 kB
  • After compression 20.0 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. Orenlib.ru needs all CSS files to be minified and compressed as it can save up to 7.4 kB or 27% of the original size.

Requests Breakdown

Number of requests can be reduced by 43 (29%)

Requests Now

148

After Optimization

105

The browser has sent 148 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Orenlib. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and from 11 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

orenlib.ru accessibility score

88

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

orenlib.ru best practices score

75

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

Page has valid source maps

SEO Factors

orenlib.ru SEO score

82

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

    RU

  • Language Claimed

    RU

  • Encoding

    WINDOWS-1251

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Orenlib.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 Orenlib.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

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