Access len-krov.ru. Монтаж кровли в Санкт-Петербурге, кровельные работы в СПб

name

value

score

weighting

FCP (First Contentful Paint)

Value3.3 s

41/100

10%

LCP (Largest Contentful Paint)

Value19.4 s

0/100

25%

SI (Speed Index)

Value9.4 s

12/100

10%

TBT (Total Blocking Time)

Value160 ms

94/100

30%

CLS (Cumulative Layout Shift)

Value0.006

100/100

15%

TTI (Time to Interactive)

Value24.7 s

0/100

10%

len-krov.ru

509 ms

style.css

126 ms

jquery-1.7.2.min.js

374 ms

mobilyslider.js

246 ms

scripts.js

255 ms

Our browser made a total of 98 requests to load all elements on the main page. We found that 95% of them (93 requests) were addressed to the original Len-krov.ru, 3% (3 requests) were made to Mc.yandex.ru and 2% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.5 sec) belongs to the original domain Len-krov.ru.

Content Size

5.0 MB

After Optimization

4.8 MB

In fact, the total size of Len-krov.ru main page is 5.0 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. 55% of websites need less resources to load. Images take 4.7 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 48.9 kB

Original 60.1 kB
After minification 55.6 kB
After compression 11.2 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 48.9 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 7.6 kB

Original 4.7 MB
After minification 4.7 MB

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. Len Krov images are well optimized though.

JavaScript Optimization

-60%

Potential reduce by 139.1 kB

Original 232.5 kB
After minification 232.5 kB
After compression 93.4 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 139.1 kB or 60% of the original size.

CSS Optimization

-80%

Potential reduce by 31.3 kB

Original 39.2 kB
After minification 37.8 kB
After compression 7.9 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. Len-krov.ru needs all CSS files to be minified and compressed as it can save up to 31.3 kB or 80% of the original size.

Requests Now

After Optimization

The browser has sent 91 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Len Krov. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and as a result speed up the page load time.

Accessibility Issues

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 interpretation of your content by users in different locales.

High

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

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

Form elements do not have associated labels

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

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

N/A
Encoding

UTF-8

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

len-krov.ru

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

Монтаж кровли в Санкт-Петербурге, кровельные работы в СПб

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

len-krov.ru

style.css

jquery-1.7.2.min.js

mobilyslider.js

scripts.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

len-krov.ru

style.css

jquery-1.7.2.min.js

mobilyslider.js

scripts.js

highslide.js

m_bg.jpg

head_bg.png

name_bg.png

logo.png

call_back.png

sl_im.jpg

theme_icons.png

eye.png

th1.jpg

callout.png

h_33.jpg

h_37.jpg

h_31.jpg

h_35.jpg

im21.jpg

th2.jpg

im23.jpg

h_32.jpg

h_26.jpg

h_24.jpg

im22.jpg

th40.jpg

h_90.jpg

th4.jpg

im24.jpg

im27.jpg

im29.jpg

im26.jpg

th30.jpg

h_80.jpg

h_81.jpg

h_82.jpg

th20.jpg

h_70.jpg

h_71.jpg

watch.js

analytics.js