Access prevolio.com. Портфолио профессиональной деятельности, тесты на выбор профессии онлайн бесплатно

name

value

score

weighting

FCP (First Contentful Paint)

Value8.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value21.7 s

0/100

10%

TBT (Total Blocking Time)

Value36,000 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value50.8 s

0/100

10%

prevolio.com

2776 ms

tinytips.css

255 ms

main.css

508 ms

jquery-ui-1.8.17.custom.css

506 ms

customstyles.css

1244 ms

Our browser made a total of 135 requests to load all elements on the main page. We found that 62% of them (84 requests) were addressed to the original Prevolio.com, 6% (8 requests) were made to Pagead2.googlesyndication.com and 4% (6 requests) were made to Cm.g.doubleclick.net. The less responsive or slowest element that took the longest time to load (3.2 sec) belongs to the original domain Prevolio.com.

Content Size

1.6 MB

After Optimization

966.5 kB

In fact, the total size of Prevolio.com 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. 70% of websites need less resources to load. Javascripts take 902.0 kB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 76.5 kB

Original 101.0 kB
After minification 91.9 kB
After compression 24.5 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 76.5 kB or 76% of the original size.

Image Optimization

-3%

Potential reduce by 15.0 kB

Original 501.0 kB
After minification 486.0 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. Prevolio images are well optimized though.

JavaScript Optimization

-55%

Potential reduce by 496.2 kB

Original 902.0 kB
After minification 808.4 kB
After compression 405.9 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 496.2 kB or 55% of the original size.

CSS Optimization

-21%

Potential reduce by 13.0 kB

Original 63.1 kB
After minification 63.1 kB
After compression 50.1 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. Prevolio.com needs all CSS files to be minified and compressed as it can save up to 13.0 kB or 21% of the original size.

Requests Now

126

After Optimization

The browser has sent 126 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Prevolio. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 63 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

High

[aria-*] attributes do not match their roles

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

High

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

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

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

High

Page has valid source maps

Search Engine Optimization Advices

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

High

robots.txt is not valid

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

Language and Encoding

Language Detected

EN
Language Claimed

EN
Encoding

UTF-8

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

Report Summary

Performance

Accessibility

Best Practices

SEO

Портфолио профессиональной деятельности, тесты на выбор профессии онлайн бесплатно

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)

Network Requests Diagram

prevolio.com

tinytips.css

main.css

jquery-ui-1.8.17.custom.css

customstyles.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

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Accessibility Review

Accessibility Issues

Best Practices

Areas of Improvement

SEO Factors

Search Engine Optimization Advices

Language and Encoding

Language Detected

Language Claimed

Encoding

Social Sharing Optimization

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