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name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value11.5 s

0/100

25%

SI (Speed Index)

Value10.1 s

9/100

10%

TBT (Total Blocking Time)

Value8,180 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.231

54/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

sestek.ru

1073 ms

style.css

252 ms

bootstrap-theme-cerulean.css

392 ms

bar.css

259 ms

font-awesome.min.css

12 ms

Our browser made a total of 116 requests to load all elements on the main page. We found that 83% of them (96 requests) were addressed to the original Sestek.ru, 3% (4 requests) were made to Maxcdn.bootstrapcdn.com and 3% (4 requests) were made to Top-fwz1.mail.ru. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Sestek.ru.

Content Size

1.6 MB

After Optimization

1.1 MB

In fact, the total size of Sestek.ru 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. 60% of websites need less resources to load. Images take 995.8 kB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 99.9 kB

Original 114.4 kB
After minification 104.2 kB
After compression 14.5 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 99.9 kB or 87% of the original size.

Image Optimization

-8%

Potential reduce by 77.3 kB

Original 995.8 kB
After minification 918.6 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. Sestek images are well optimized though.

JavaScript Optimization

-70%

Potential reduce by 205.8 kB

Original 294.2 kB
After minification 241.4 kB
After compression 88.5 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 205.8 kB or 70% of the original size.

CSS Optimization

-81%

Potential reduce by 157.5 kB

Original 193.6 kB
After minification 186.9 kB
After compression 36.0 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. Sestek.ru needs all CSS files to be minified and compressed as it can save up to 157.5 kB or 81% of the original size.

Requests Now

110

After Optimization

The browser has sent 110 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sestek. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 7 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 input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

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

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

High

Links are not crawlable

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

Language and Encoding

Language Detected

RU
Language Claimed

RU
Encoding

WINDOWS-1251

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

sestek.ru

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

Интернет магазин светодиодных ламп, купить LED лампы, ленты, прожекторы с доставкой по России, купить светодиодные лампы, распродажа светодиодных ламп...

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

sestek.ru

style.css

bootstrap-theme-cerulean.css

bar.css

font-awesome.min.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

sestek.ru

style.css

bootstrap-theme-cerulean.css

bar.css

font-awesome.min.css

menu.css

jquery.formstyler.css

font-awesome.min.css

jquery.min.js

bootstrap.js

jquery.formstyler.js

phpshop.js

jqfunc.js

jquery.cookie.js

waypoints.min.js

visualcart.js

checked_v1.gif

fbnp_b3.png

small2.gif

fongray2.jpg

logo%20small.png

predlojenie.jpg

img1468_12212_big.jpg

bbk.png

download.png

nestandart%20led.jpg

no_photo.gif

E27.jpg

e14.jpg

gu10.gif

gu5-3.jpg

gx53.png

g9.jpg

g4.jpg

12v.jpg

pled-hp-t_30w.0x490.jpg

led-ted-w-3528-120-led-ted-ru.jpg

images.jpg

1111.jpg

b6d7efbab20d985a0d667ae6e5cc4a2d.jpg

blister_led_lenta_smd_3528_60_beliy_2_0m_ip65_foto_large.jpg

402909030_676-500x500.jpg

434324.jpg