Analyze

esn-rotterdam.nl: ESN Rotterdam - Erasmus Student Network (ESN) Rotterdam

Welcome to ESN Rotterdam. We aim to create a home for all international students in Rotterdam and offer over 150 different events throughout the year.

Page load speed analysis

  • 61/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    784 ms

  • Resources loaded

    2.7 sec

  • Page rendered

    189 ms

  • Total page load time

    3.6 sec

Click here to check amazing ESN Rotterdam content for Netherlands. Otherwise, check out these important facts you probably never knew about esn-rotterdam.nl

We analyzed Esn-rotterdam.nl page load time and found that the first response time was 784 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Page optimization

  • HTML 97.4 kB
    Images 558.8 kB
    Javascripts 254.2 kB
    CSS 234.6 kB

    In fact, the total size of Esn-rotterdam.nl main page is 1.1 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 558.8 kB which makes up the majority of the site volume.

    • Original 97.4 kB
    • After minification 91.5 kB
    • After compression 15.2 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 82.2 kB or 84% of the original size.

    • Original 558.8 kB
    • After optimization 515.7 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. ESN Rotterdam images are well optimized though.

    • Original 254.2 kB
    • After minification 252.7 kB
    • After compression 77.3 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 176.9 kB or 70% of the original size.

    • Original 234.6 kB
    • After minification 233.2 kB
    • After compression 25.3 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. Esn-rotterdam.nl needs all CSS files to be minified and compressed as it can save up to 209.3 kB or 89% of the original size.

Network requests diagram

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Our browser made a total of 61 requests to load all elements on the main page. We found that 93% of them (57 requests) were addressed to the original Esn-rotterdam.nl, 3% (2 requests) were made to Staticxx.facebook.com and 2% (1 request) were made to Connect.facebook.net. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Esn-rotterdam.nl.

Additional info on esn-rotterdam.nl

Requests

The browser has sent 60 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ESN Rotterdam. 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.

6

Javascripts

40

Images

3

CSS

11

AJAX

60

All

Possible request optimization

1

Javascripts

40

Images

3

CSS

11

AJAX

5

Optimized

55

All

Normal result

IP address

Esn-rotterdam.nl uses IP address which is currently shared with 4 other domains. 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.

Poor result

IP Trace

esn-rotterdam.nl

foei.org

yonego.com

favou.com

piramidehuis.nl

141.138.169.211

DNS records

Type Host Target/ip TTL Other
A

esn-rotterdam.nl

141.138.169.211 292
NS

esn-rotterdam.nl

ns2.transip.eu 300
NS

esn-rotterdam.nl

ns0.transip.net 300
NS

esn-rotterdam.nl

ns1.transip.nl 300
SOA

esn-rotterdam.nl

300 Mname: ns0.transip.net
Rname: hostmaster.transip.nl
Serial: 2020102401
Refresh: 14400
Retry: 1800
Expire: 2419200
Minimum-ttl: 300

Language and encoding

Normal result

Language

N/A  language flag

Detected

EN en language flag

Claimed

Encoding

UTF-8

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Esn-rotterdam.nl can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else), while the claimed language is English. Our system also found out that Esn-rotterdam.nl 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

Esn-rotterdam.nl 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

Country of origin for 70.9% of all visits is Netherlands. It’s good for Esn-rotterdam.nl that their server is also located in Netherlands, as that enables the majority of their visitors to benefit from a much faster page load time.

Good result

Poor result

Social Sharing Optimization

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

esn-rotterdam.nl

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