Analyze Isobar Poland | Global Digital Agency

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Page load speed analysis

  • 60/100

    Normal result
  • 8

    Successful tests
  • 0

    Failed test
  • First response

    467 ms

  • Resources loaded

    4.6 sec

  • Page rendered

    304 ms

  • Total page load time

    5.3 sec

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We analyzed page load time and found that the first response time was 467 ms and then it took 4.9 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 160.0 kB
    Images 1.4 MB
    Javascripts 580.3 kB
    CSS 2 B

    In fact, the total size of main page is 2.2 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. 50% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

    • Original 160.0 kB
    • After minification 157.5 kB
    • After compression 16.2 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 143.8 kB or 90% of the original size.

    • Original 1.4 MB
    • After optimization 1.3 MB

    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. E Sender images are well optimized though.

    • Original 580.3 kB
    • After minification 409.6 kB
    • After compression 116.5 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 463.8 kB or 80% of the original size.

    • Original 2 B

    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.

Network requests diagram

  • home
  • jquery.js
  • styles.css
  • home.css
  • polyfills.js
  • global.js
  • home.js
  • 295c39
  • analytics.js
  • gtm.js
  • orange.svg
  • 295C39_0_0.woff
  • isobaricons-regular.woff
  • 295C39_2_0.woff
  • collect
  • 295C39_1_0.woff
  • collect
  • collect
  • forrester-wave-leader_hd_super_sized.jpg
  • forrester-wave-leader_hd_case_study_hero.png
  • isobar-welcomes-emerald-to-the-network_hd_super_sized.png
  • isobar-welcomes-emerald-to-the-network_hd_case_study_hero.png
  • isobar-greece-launches-in-athens_hd_super_sized.png
  • isobar-greece-launches-in-athens_hd_case_study_hero.png
  • magic-quadrant_hd_super_sized.jpg
  • magic-quadrant_hd_case_study_hero.png
  • forrester-wave_hd_super_sized.jpg
  • forrester-wave_hd_case_study_hero.png
  • forrester-digital-experience-wave_hd_super_sized.png
  • forrester-digital-experience-wave_hd_case_study_thumbnail.png
  • magic-quadrant-caresoul_hd_super_sized.jpg
  • magic-quadrant-caresoul_hd_case_study_thumbnail.jpg
  • forrester-wave-1_hd_super_sized.jpg
  • forrester-wave-1_hd_case_study_thumbnail.jpg

Our browser made a total of 37 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original, 43% (16 requests) were made to and 32% (12 requests) were made to The less responsive or slowest element that took the longest time to load (1.2 sec) relates to the external source

Additional info on


The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of E Sender. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 6 to 1 for JavaScripts and as a result speed up the page load time.









Possible request optimization











Normal result


As for redirects, our browser reached this domain in three steps. The first redirect led to, then it was forwarded to, and afterwards it was sent to before we finally managed to reach this website. We strongly recommend that the redirects should be reduced, as the more redirects a site has, the slower it loads.

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 300
NS 300
NS 300
NS 300

300 Mname:
Serial: 2016031501
Refresh: 7200
Retry: 3600
Expire: 604800
Minimum-ttl: 3600

Language and encoding

Normal result


EN en language flag


PL pl 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 Polish 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 Poland, 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

Good result

Social Sharing Optimization

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

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