Analyze Контактни лещи онлайн от магазин LENSIN.BG

Онлайн магазин за контактни лещи, разтвори за лещи и изкуствени сълзи. Предлагаме само утвърдени марки на пазара на контактни лещи по света като: Bausch + Lomb, CooperVision, Alcon и Johnson&Johnson.

Page load speed analysis

  • 59/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    565 ms

  • Resources loaded

    5.2 sec

  • Page rendered

    357 ms

  • Total page load time

    6.2 sec

Visit now to see the best up-to-date LENSIN content and also check out these interesting facts you probably never knew about

We analyzed page load time and found that the first response time was 565 ms and then it took 5.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Page optimization

  • HTML 384.4 kB
    Images 593.0 kB
    Javascripts 652.2 kB
    CSS 0 B

    In fact, the total size of 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. 40% of websites need less resources to load. Javascripts take 652.2 kB which makes up the majority of the site volume.

    • Original 384.4 kB
    • After minification 384.1 kB
    • After compression 103.5 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 280.9 kB or 73% of the original size.

    • Original 593.0 kB
    • After optimization 559.2 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. LENSIN images are well optimized though.

    • Original 652.2 kB
    • After minification 651.2 kB
    • After compression 219.3 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 432.9 kB or 66% of the original size.

Network requests diagram

  • stylesheet.css
  • 1200.css
  • flexslider.css
  • jquery-ui.css
  • colorbox.css
  • jqueryzoom.css
  • 1-nitro-combined-6da83c910ae70d4bad0bcb4a6e0cdae1.css
  • jquery.js
  • jquery-ui.js
  • jquerycookie.js
  • tabs.js
  • common.js
  • jquery-flexslider-min.js
  • adapt.js
  • jqueryzoom.js
  • jquery.colorbox-min.js
  • 1-nitro-combined-0635231b087eb423e1d75195b8eb08e4.js
  • addthis_widget.js
  • icustomfooter.css
  • css
  • analytics.js
  • fbevents.js
  • EU1.svg
  • BG1.svg
  • contacts-1-140x41_1.png
  • contacts-colors-1-140x41_1.png
  • raztvor-za-leshti-140x41_1.png
  • izkustveni-sulzi-140x41_1.png
  • module-stars-5.png
  • BIOFINITY-BLISTER_1_2_640x480_ec30c.jpg
  • FREQUENCY-55-ASPHERIC-BLISTER-1_1_2_640x480_ec30c.jpg
  • purevision-blister-2_1_2_640x480_ec30c.jpg
  • optima-fw-blister_1_2_640x480_ec30c.jpg
  • BIOFINITY-TORIC_1_2_640x480_ec30c.jpg
  • ReNu---360ml_1_2_640x480_ec30c.jpg
  • OPTI-Free-Express-355ML_1_2_640x480_ec30c.jpg
  • Sensitive-Eyes-Lens-Lubricant_1_2_640x480_ec30c.jpg
  • biofinity_toric_1-800x418_1.jpg
  • C7bP6N8yXZ-PGLzbFLtQKaCWcynf_cDxXwCLxiixG1c.ttf
  • PIbvSEyHEdL91QLOQRnZ12eP1y_Bkidl4ESyB_O2G_c.ttf
  • collect
  • jquery.fancybox.css
  • index.php
  • widget_v2.135.js
  • __$$__stringtable_lang_bg.js
  • compare-overlay.png
  • wishlist-overlay.png
  • 300lo.json
  • baner23-1920x400_1.jpg
  • sh.8e5f85691f9aaa082472a194.html
  • layers.e5ea973510bf60b3db41.js
  • bg.js
  • avatar_simple_visitor.png

Our browser made a total of 56 requests to load all elements on the main page. We found that 73% of them (41 requests) were addressed to the original, 7% (4 requests) were made to and 5% (3 requests) were made to The less responsive or slowest element that took the longest time to load (1.6 sec) belongs to the original domain

Additional info on


The browser has sent 52 CSS, Javascripts, AJAX and image requests in order to completely render the main page of LENSIN. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.











Possible request optimization













Normal result


As for redirects, our browser was forwarded to before it reached this domain.

IP address

This IP address is dedicated to This is the best domain hosting practice .

Normal result

IP Trace

DNS records

Type Host Target/ip TTL Other
A 55
NS 60
NS 60

60 Mname:
Serial: 2019110801
Refresh: 86400
Retry: 7200
Expire: 3600000
Minimum-ttl: 86400
MX 300 Pri: 10

Language and encoding

Good result


BG bg language flag


BG bg 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 Bulgarian is used on the page, and it matches the claimed 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.

Poor result

Visitor World Map

The server of is located in Bulgaria, 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 LENSIN. 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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