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sealib.com.ua screenshot

Report Summary

  • 97

    Performance

    Renders faster than
    94% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

sealib.com.ua

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Page Load Speed

1.4 sec in total

First Response

342 ms

Resources Loaded

944 ms

Page Rendered

113 ms

sealib.com.ua screenshot

About Website

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Key Findings

We analyzed Sealib.com.ua page load time and found that the first response time was 342 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

sealib.com.ua performance score

97

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.9 s

88/100

10%

LCP (Largest Contentful Paint)

Value2.0 s

97/100

25%

SI (Speed Index)

Value2.3 s

99/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.079

94/100

15%

TTI (Time to Interactive)

Value1.9 s

100/100

10%

Network Requests Diagram

sealib.com.ua

342 ms

sealib.com.ua

510 ms

i.css

15 ms

all.js

44 ms

logo.png

29 ms

Our browser made a total of 7 requests to load all elements on the main page. We found that all of those requests were addressed to Sealib.com.ua and no external sources were called. The less responsive or slowest element that took the longest time to load (510 ms) belongs to the original domain Sealib.com.ua.

Page Optimization Overview & Recommendations

Page size can be reduced by 47.6 kB (84%)

Content Size

56.4 kB

After Optimization

8.8 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Sealib.com.ua main page is 56.4 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Images take 35.7 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 11.8 kB

  • Original 14.9 kB
  • After minification 10.2 kB
  • After compression 3.1 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. This page needs HTML code to be minified as it can gain 4.7 kB, which is 32% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 11.8 kB or 79% of the original size.

Image Optimization

-99%

Potential reduce by 35.2 kB

  • Original 35.7 kB
  • After minification 436 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, Sealib needs image optimization as it can save up to 35.2 kB or 99% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-47%

Potential reduce by 303 B

  • Original 640 B
  • After minification 640 B
  • After compression 337 B

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 303 B or 47% of the original size.

CSS Optimization

-6%

Potential reduce by 325 B

  • Original 5.3 kB
  • After minification 5.3 kB
  • After compression 4.9 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. Sealib.com.ua has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

5

After Optimization

5

  • Images
  • JavaScript
  • CSS

The browser has sent 5 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sealib. According to our analytics all requests are already optimized.

Network Requests Diagram

sealib.com.ua

sealib.com.ua

342 ms

sealib.com.ua

sealib.com.ua

510 ms

i.css

i.css

15 ms

all.js

all.js

44 ms

logo.png

logo.png

29 ms

discount.svg

discount.svg

51 ms

gift.png

gift.png

15 ms

Accessibility Review

sealib.com.ua accessibility score

84

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

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 valid value for its [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

Image elements do not have [alt] attributes

Best Practices

sealib.com.ua best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

sealib.com.ua SEO score

85

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

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 Sealib.com.ua 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 Sealib.com.ua 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

sealib.com.ua

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