Tools & Wizards About Us

Report Summary

  • 51

    Performance

    Renders faster than
    69% of other websites

  • 67

    Accessibility

    Visual factors better than
    that of 32% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

tessla.ru

Рекламные мониторы, Рекламные плееры, USB зарядки TESSLA

Page Load Speed

8.9 sec in total

First Response

855 ms

Resources Loaded

7.8 sec

Page Rendered

266 ms

About Website

Welcome to tessla.ru homepage info - get ready to check TESSLA best content for Russia right away, or after learning these important things about tessla.ru

Рекламный мониторы, рекламные плееры, медиакомплексы для рекламы, USB зарядки в транспорт от производителя TESSLA. Лучшие цены и гарантия.

Visit tessla.ru

Key Findings

We analyzed Tessla.ru page load time and found that the first response time was 855 ms and then it took 8 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

tessla.ru performance score

51

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.4 s

16/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

39/100

25%

SI (Speed Index)

Value7.9 s

22/100

10%

TBT (Total Blocking Time)

Value470 ms

61/100

30%

CLS (Cumulative Layout Shift)

Value0.104

89/100

15%

TTI (Time to Interactive)

Value6.8 s

56/100

10%

Network Requests Diagram

tessla.ru

855 ms

css

36 ms

j-strap.css

554 ms

font-awesome.min.css

714 ms

jquery-ui-slider.min.css

1522 ms

Our browser made a total of 91 requests to load all elements on the main page. We found that 93% of them (85 requests) were addressed to the original Tessla.ru, 3% (3 requests) were made to Mc.yandex.com and 1% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (3.7 sec) belongs to the original domain Tessla.ru.

Page Optimization Overview & Recommendations

Page size can be reduced by 121.8 kB (16%)

Content Size

747.0 kB

After Optimization

625.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Tessla.ru main page is 747.0 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. 50% of websites need less resources to load. Images take 317.7 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 68.4 kB

  • Original 80.7 kB
  • After minification 67.1 kB
  • After compression 12.3 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 13.5 kB, which is 17% 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 68.4 kB or 85% of the original size.

Image Optimization

-8%

Potential reduce by 25.1 kB

  • Original 317.7 kB
  • After minification 292.5 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. TESSLA images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 15.9 kB

  • Original 257.7 kB
  • After minification 257.7 kB
  • After compression 241.8 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

-14%

Potential reduce by 12.4 kB

  • Original 91.0 kB
  • After minification 91.0 kB
  • After compression 78.6 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. Tessla.ru needs all CSS files to be minified and compressed as it can save up to 12.4 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 50 (57%)

Requests Now

88

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 88 CSS, Javascripts, AJAX and image requests in order to completely render the main page of TESSLA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 28 to 1 for JavaScripts and from 24 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

tessla.ru accessibility score

67

Accessibility Issues

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

Buttons do not have an accessible name

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

tessla.ru best practices score

67

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

Browser errors were logged to the console

SEO Factors

tessla.ru SEO score

85

Search Engine Optimization Advices

Content Best Practices

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

Impact

Issue

High

Links do not have descriptive text

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Tessla.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 Tessla.ru 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 data is detected on the main page of TESSLA. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: