Access proftests.net. Профессиональное тестирование онлайн.

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value4.3 s

42/100

25%

SI (Speed Index)

Value4.9 s

65/100

10%

TBT (Total Blocking Time)

Value350 ms

73/100

30%

CLS (Cumulative Layout Shift)

Value0.03

100/100

15%

TTI (Time to Interactive)

Value6.5 s

59/100

10%

proftests.net

782 ms

styles.css

142 ms

plusone.js

9 ms

jquery.min.js

10 ms

jquery.colorbox.js

281 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 81% of them (74 requests) were addressed to the original Proftests.net, 7% (6 requests) were made to Apis.google.com and 2% (2 requests) were made to Counter.yadro.ru. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source An.yandex.ru.

Content Size

332.1 kB

After Optimization

233.4 kB

In fact, the total size of Proftests.net main page is 332.1 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 35% of websites need less resources to load. Javascripts take 207.6 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 91.2 kB

Original 107.1 kB
After minification 99.8 kB
After compression 15.9 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 91.2 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 10 B

Original 10.0 kB
After minification 9.9 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. Proftests images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 5.3 kB

Original 207.6 kB
After minification 207.6 kB
After compression 202.4 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. This website has mostly compressed JavaScripts.

CSS Optimization

-30%

Potential reduce by 2.2 kB

Original 7.4 kB
After minification 7.4 kB
After compression 5.2 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. Proftests.net needs all CSS files to be minified and compressed as it can save up to 2.2 kB or 30% of the original size.

Requests Now

After Optimization

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Proftests. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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

High

Links do not have a discernible name

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

High

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

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

Search Engine Optimization Advices

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

High

Image elements do not have [alt] attributes

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/).

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

Language Detected

RU
Language Claimed

N/A
Encoding

WINDOWS-1251

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

proftests.net

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

Профессиональное тестирование онлайн.

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

proftests.net

styles.css

plusone.js

jquery.min.js

jquery.colorbox.js

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

proftests.net

styles.css

plusone.js

jquery.min.js

jquery.colorbox.js

share.js

watch.js

cb=gapi.loaded_0

style.css

engine.css

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dlet_top_11.gif

dlet_ic_home.gif

dlet_ic_feedback.gif

dlet_ic_sitemap.gif

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spacer.gif

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