Access lerc.ru. Стройматериалы оптом

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value3.8 s

54/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value40 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.27

45/100

15%

TTI (Time to Interactive)

Value4.1 s

86/100

10%

lerc.ru

516 ms

lerc.ru

683 ms

h-bootstrap.css

126 ms

h-main.min.css

246 ms

pencil-ruler.svg

360 ms

Our browser made a total of 55 requests to load all elements on the main page. We found that 96% of them (53 requests) were addressed to the original Lerc.ru, 2% (1 request) were made to Cdn.jsdelivr.net and 2% (1 request) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Lerc.ru.

Content Size

402.7 kB

After Optimization

315.0 kB

In fact, the total size of Lerc.ru main page is 402.7 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. 30% of websites need less resources to load. Images take 278.7 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 77.2 kB

Original 94.3 kB
After minification 85.9 kB
After compression 17.2 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 77.2 kB or 82% of the original size.

Image Optimization

-4%

Potential reduce by 10.1 kB

Original 278.7 kB
After minification 268.5 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. Lerc images are well optimized though.

CSS Optimization

-1%

Potential reduce by 407 B

Original 29.8 kB
After minification 29.8 kB
After compression 29.3 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. Lerc.ru has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 53 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lerc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 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 keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

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

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

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

RU
Encoding

UTF-8

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

lerc.ru

Open Graph data is detected on the main page of Lerc. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook:

Report Summary

Performance

Accessibility

Best Practices

SEO

Стройматериалы оптом

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

lerc.ru

lerc.ru

h-bootstrap.css

h-main.min.css

pencil-ruler.svg

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

lerc.ru

lerc.ru

h-bootstrap.css

h-main.min.css

pencil-ruler.svg

envelope-open.svg

phone-office.svg

clock.svg

logo.png

whatsapp.svg

f-jquery.fancybox.min.css

f-01_jquery-3.2.1.min.js

f-jquery.fancybox.min.js

f-main.js

bootstrap.min.js

jquery.fancybox.min.js

main-top-lq.jpg

s_demontazh-chastnyh-domov.jpg

s_demontazh-mnogoehtazhnogo.jpg

s_demontazh-derevyannogo-doma.jpg

s_demontazh-kirpichnogo-doma.jpg

s_demontazh-angara.jpg

s_demontazh-zavoda.jpg

s_demontazh-garazha.jpg

s_promyshlennyj-demontazh.jpg

t_demontazh-sten.jpg

t_demontazh-kommunikacij.jpg

t_demontazh-zabora.jpg

t_demontazh-krovli.jpg

t_demontazh-metallokonstrukcij.jpg

t_demontazh-fundamenta.jpg

gs_1-lq.jpg

search.svg

gs_2-lq.jpg

gs_3-lq.jpg

gs_4-lq.jpg

phone-call.svg

factory.svg

delivery.svg

instrument.svg

umbrella.svg

f1690600951.jpg

f1686805396.jpg

map-marker.svg