Tools & Wizards About Us
lero.com.pl screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    74% of other websites

  • 73

    Accessibility

    Visual factors better than
    that of 38% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

lero.com.pl

Drabiny aluminiowe, rusztowania teleskopowe, podnośniki osobowe | Lemar

Page Load Speed

3.7 sec in total

First Response

378 ms

Resources Loaded

3.1 sec

Page Rendered

310 ms

lero.com.pl screenshot

About Website

Click here to check amazing Lero Com content. Otherwise, check out these important facts you probably never knew about lero.com.pl

Lemar ma w swojej ofercie duży wybór rusztowań aluminiowych, jezdnych i przejezdnych, drabiny oraz podnośniki towarowe. Towar wysyłamy w każde miejsce w Polsce darmowym transportem.

Visit lero.com.pl

Key Findings

We analyzed Lero.com.pl page load time and found that the first response time was 378 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

lero.com.pl performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

31/100

10%

LCP (Largest Contentful Paint)

Value3.9 s

53/100

25%

SI (Speed Index)

Value7.0 s

32/100

10%

TBT (Total Blocking Time)

Value390 ms

69/100

30%

CLS (Cumulative Layout Shift)

Value0.008

100/100

15%

TTI (Time to Interactive)

Value8.4 s

38/100

10%

Network Requests Diagram

lero.com.pl

378 ms

e-lemar.pl

1114 ms

bootstrap.min.css

240 ms

50f881606ff017daafb470d6b6bf5e18.css

533 ms

js

47 ms

Our browser made a total of 62 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Lero.com.pl, 73% (45 requests) were made to E-lemar.pl and 10% (6 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source E-lemar.pl.

Page Optimization Overview & Recommendations

Page size can be reduced by 293.4 kB (18%)

Content Size

1.6 MB

After Optimization

1.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Lero.com.pl 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. 70% of websites need less resources to load. Images take 969.3 kB which makes up the majority of the site volume.

HTML Optimization

-86%

Potential reduce by 137.1 kB

  • Original 159.4 kB
  • After minification 135.8 kB
  • After compression 22.2 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. This page needs HTML code to be minified as it can gain 23.6 kB, which is 15% 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 137.1 kB or 86% of the original size.

Image Optimization

-11%

Potential reduce by 102.4 kB

  • Original 969.3 kB
  • After minification 866.9 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. Obviously, Lero Com needs image optimization as it can save up to 102.4 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-10%

Potential reduce by 39.0 kB

  • Original 398.2 kB
  • After minification 398.2 kB
  • After compression 359.2 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

-23%

Potential reduce by 14.9 kB

  • Original 63.9 kB
  • After minification 63.9 kB
  • After compression 49.1 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. Lero.com.pl needs all CSS files to be minified and compressed as it can save up to 14.9 kB or 23% of the original size.

Requests Breakdown

Number of requests can be reduced by 21 (36%)

Requests Now

59

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 59 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lero Com. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 17 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

lero.com.pl

lero.com.pl

378 ms

e-lemar.pl

e-lemar.pl

1114 ms

bootstrap.min.css

bootstrap.min.css

240 ms

50f881606ff017daafb470d6b6bf5e18.css

50f881606ff017daafb470d6b6bf5e18.css

533 ms

js

js

47 ms

b59fd68c8212fa8f9be210f01481ac8f.js

b59fd68c8212fa8f9be210f01481ac8f.js

594 ms

jquery.cookie.js

jquery.cookie.js

250 ms

jquery.md5.js

jquery.md5.js

357 ms

platform.js

platform.js

24 ms

LeaseLinkLib.min.js

LeaseLinkLib.min.js

373 ms

905b84.js

905b84.js

720 ms

gtm.js

gtm.js

103 ms

c9ff0bbf55f280d347cd1669d4be1f77.jpg

c9ff0bbf55f280d347cd1669d4be1f77.jpg

125 ms

cfe2eaa91de460f4dc7293a0366dcbbe.png

cfe2eaa91de460f4dc7293a0366dcbbe.png

246 ms

thumb_13221341802.jpg

thumb_13221341802.jpg

243 ms

thumb_5.jpg

thumb_5.jpg

246 ms

thumb_504.jpg

thumb_504.jpg

247 ms

thumb_313.jpg

thumb_313.jpg

252 ms

thumb_1466493555509.jpg

thumb_1466493555509.jpg

591 ms

thumb_513.jpg

thumb_513.jpg

523 ms

thumb_511.jpg

thumb_511.jpg

379 ms

thumb_269.jpg

thumb_269.jpg

382 ms

thumb_517.jpg

thumb_517.jpg

522 ms

thumb_531.jpg

thumb_531.jpg

380 ms

thumb_309.jpg

thumb_309.jpg

522 ms

thumb_1322133672268.jpg

thumb_1322133672268.jpg

523 ms

thumb_270.jpg

thumb_270.jpg

523 ms

thumb_361.jpg

thumb_361.jpg

609 ms

small_100.jpg

small_100.jpg

609 ms

63ee13c35528e-2.png

63ee13c35528e-2.png

614 ms

small_70735-521B-Rescue-35m-extended-angel-ver-2020-1-scaled.jpg

small_70735-521B-Rescue-35m-extended-angel-ver-2020-1-scaled.jpg

621 ms

4.png

4.png

625 ms

small_echelle-crochet-faite-010.jpg

small_echelle-crochet-faite-010.jpg

710 ms

small_miniatura.png

small_miniatura.png

728 ms

1.png

1.png

725 ms

small_IMG-7260.JPG

small_IMG-7260.JPG

734 ms

small_T440005-RS-44-POWER-2-75m-4-stabs-full-1.jpg

small_T440005-RS-44-POWER-2-75m-4-stabs-full-1.jpg

742 ms

small_IMG-7323.JPG

small_IMG-7323.JPG

748 ms

small_MINIATURKA.png

small_MINIATURKA.png

833 ms

pobrane.jpg

pobrane.jpg

848 ms

deliver_box1.jpg

deliver_box1.jpg

850 ms

wersja%201.gif

wersja%201.gif

974 ms

small_rozbudowa.png

small_rozbudowa.png

864 ms

small_T450000.png

small_T450000.png

872 ms

small_IMG-3787.png

small_IMG-3787.png

956 ms

small_IMG-7251.JPG

small_IMG-7251.JPG

973 ms

facebook.png

facebook.png

910 ms

glyphicons-halflings-regular.woff

glyphicons-halflings-regular.woff

870 ms

youtube.png

youtube.png

869 ms

allegrolink.png

allegrolink.png

842 ms

newsletter.png

newsletter.png

855 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

6 ms

badge

badge

89 ms

m=_b,_tp

m=_b,_tp

13 ms

js

js

51 ms

no_rating.png

no_rating.png

51 ms

m=vhDjqd

m=vhDjqd

42 ms

api.js

api.js

5 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

6 ms

m=Wt6vjf,hhhU8,FCpbqb,WhJNk

m=Wt6vjf,hhhU8,FCpbqb,WhJNk

23 ms

m=lwddkf,EFQ78c

m=lwddkf,EFQ78c

31 ms

m=RqjULd

m=RqjULd

7 ms

Accessibility Review

lero.com.pl accessibility score

73

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

[id] attributes on active, focusable elements are not unique

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

lero.com.pl best practices score

75

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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

lero.com.pl SEO score

93

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    PL

  • Language Claimed

    PL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lero.com.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Lero.com.pl 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

lero.com.pl

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