Access vlib.by. ГУ "ВИТЕБСКАЯ ОБЛАСТНАЯ БИБЛИОТЕКА ИМ. В.И. ЛЕНИНА"

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About Website

Visit vlib.by now to see the best up-to-date Vlib content for Belarus and also check out these interesting facts you probably never knew about vlib.by

ГУ "ВИТЕБСКАЯ ОБЛАСТНАЯ БИБЛИОТЕКА ИМ. В.И. ЛЕНИНА"

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name

value

score

weighting

FCP (First Contentful Paint)

Value14.5 s

0/100

10%

LCP (Largest Contentful Paint)

Value27.6 s

0/100

25%

SI (Speed Index)

Value25.7 s

0/100

10%

TBT (Total Blocking Time)

Value100 ms

98/100

30%

CLS (Cumulative Layout Shift)

Value0.197

63/100

15%

TTI (Time to Interactive)

Value24.0 s

1/100

10%

1106 ms

typography2.php

448 ms

widgetkit-2aba6eae.css

570 ms

jd.gallery.css

290 ms

layout.css

294 ms

Our browser made a total of 123 requests to load all elements on the main page. We found that 98% of them (121 requests) were addressed to the original Vlib.by, 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Vlib.by.

Content Size

3.0 MB

After Optimization

2.4 MB

In fact, the total size of Vlib.by main page is 3.0 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. 30% of websites need less resources to load. Images take 2.3 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 46.4 kB

Original 58.9 kB
After minification 54.6 kB
After compression 12.5 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 46.4 kB or 79% of the original size.

Image Optimization

-2%

Potential reduce by 34.3 kB

Original 2.3 MB
After minification 2.2 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. Vlib images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 407.6 kB

Original 597.6 kB
After minification 584.4 kB
After compression 190.1 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 407.6 kB or 68% of the original size.

CSS Optimization

-84%

Potential reduce by 105.3 kB

Original 125.0 kB
After minification 106.9 kB
After compression 19.6 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. Vlib.by needs all CSS files to be minified and compressed as it can save up to 105.3 kB or 84% of the original size.

Requests Now

121

After Optimization

The browser has sent 121 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vlib. 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 from 17 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Form elements do not have associated labels

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Language and Encoding

Language Detected

Language Claimed

Encoding

UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vlib.by can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Vlib.by 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

vlib.by

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

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Performance

Accessibility

Best Practices

SEO

ГУ "ВИТЕБСКАЯ ОБЛАСТНАЯ БИБЛИОТЕКА ИМ. В.И. ЛЕНИНА"

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)