Analyze Challenging Skills

Защита от коррозии - антикоррозионные покрытия ЭЛЦ.

Page load speed analysis

  • 55/100

    Normal result
  • 7

    Successful tests
  • 1

    Failed test
  • First response

    875 ms

  • Resources loaded

    3.6 sec

  • Page rendered

    325 ms

  • Total page load time

    4.8 sec

Click here to check amazing Elzn content. Otherwise, check out these important facts you probably never knew about

We analyzed page load time and found that the first response time was 875 ms and then it took 3.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Page optimization

  • HTML 39.3 kB
    Images 226.1 kB
    Javascripts 188.9 kB
    CSS 79.7 kB

    In fact, the total size of main page is 534.0 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. 15% of websites need less resources to load. Images take 226.1 kB which makes up the majority of the site volume.

    • Original 39.3 kB
    • After minification 38.0 kB
    • After compression 7.0 kB

    HTML optimization

    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 32.3 kB or 82% of the original size.

    • Original 226.1 kB
    • After optimization 226.1 kB

    Image optimization

    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. Elzn images are well optimized though.

    • Original 188.9 kB
    • After minification 187.8 kB
    • After compression 67.0 kB

    JavaScript optimization

    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 121.9 kB or 65% of the original size.

    • Original 79.7 kB
    • After minification 77.1 kB
    • After compression 12.9 kB

    CSS optimization

    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. needs all CSS files to be minified and compressed as it can save up to 66.7 kB or 84% of the original size.

Network requests diagram

  • elzn1.css
  • logo.png
  • indexjs.php
  • icon1.jpg
  • icon2.jpg
  • icon3.jpg
  • icon4.jpg
  • foot_logo.png
  • 1488754.js
  • jquery.min.js
  • jquery.easing.1.3.js
  • camera.js
  • bootstrap.js
  • superfish.js
  • jquery.prettyPhoto.js
  • jquery.tweet.js
  • myscript.js
  • bg.jpg
  • phone_block.png
  • email_block.png
  • menu_shadow.png
  • welcome_bg.png
  • welc_shadow.png
  • watch.js
  • analytics.js
  • collect
  • top100.scn
  • code.js
  • 553797.js
  • cnt.js
  • hit
  • 1087922.js
  • hit
  • counter2
  • slider_prev.png
  • slider_next.png
  • slide1.jpg
  • cnt
  • counter
  • f.gif
  • slide2.jpg
  • hotlog_redirects
  • pixel
  • pixel
  • pixel
  • collect
  • tracker
  • cnt

Our browser made a total of 50 requests to load all elements on the main page. We found that 60% of them (30 requests) were addressed to the original, 10% (5 requests) were made to and 6% (3 requests) were made to The less responsive or slowest element that took the longest time to load (875 ms) belongs to the original domain

Additional info on


The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Elzn. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and as a result speed up the page load time.











Possible request optimization













Normal result

IP address uses IP address which is currently shared with 1 other domain. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Normal result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 295
NS 300
NS 300

300 Mname:
Serial: 2021072800
Refresh: 3600
Retry: 1800
Expire: 1209600
Minimum-ttl: 86400
MX 300 Pri: 0

Language and encoding

Normal result


EN en language flag


RU ru language flag





Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it does not match the claimed Russian language. Our system also found out that 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.

HTTPS certificate

SSL Certificate has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

The server of is located in United States, but, unfortunately, we cannot identify the countries where the visitors come from and thus it’s impossible to define if the distance can potentially affect the page load time.

Good result

Poor result

Social Sharing Optimization

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

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