Analyze ISES Home | ISES

International Solar Energy Society

Page load speed analysis

  • 48/100

    Normal result
  • 4

    Successful tests
  • 4

    Failed tests
  • First response

    362 ms

  • Resources loaded

    3.2 sec

  • Page rendered

    151 ms

  • Total page load time

    3.7 sec

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

We analyzed page load time and found that the first response time was 362 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 55% of websites can load faster.

Page optimization

  • HTML 48.3 kB
    Images 497.8 kB
    Javascripts 629.8 kB
    CSS 310.5 kB

    In fact, the total size of main page is 1.5 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. Javascripts take 629.8 kB which makes up the majority of the site volume.

    • Original 48.3 kB
    • After minification 41.9 kB
    • After compression 9.3 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. This page needs HTML code to be minified as it can gain 6.4 kB, which is 13% 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 38.9 kB or 81% of the original size.

    • Original 497.8 kB
    • After optimization 439.9 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. Obviously, ISES needs image optimization as it can save up to 58.0 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

    • Original 629.8 kB
    • After minification 489.6 kB
    • After compression 157.1 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 472.7 kB or 75% of the original size.

    • Original 310.5 kB
    • After minification 296.5 kB
    • After compression 54.9 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 255.6 kB or 82% of the original size.

Network requests diagram

  • style.css
  • style.css
  • style.css
  • stylesheet_10fc50c807.css
  • main.css
  • startseite.css
  • jquery-1.10.x-1.10.x.js
  • jquery.nivoslider-3.2.min.js
  • modernizr.custom.46884.js
  • jquery.slicebox-1.1.0.min.js
  • socialshareprivacy.js
  • facebook.js
  • twitter.js
  • gplus.js
  • linkedin.js
  • javascript_30dfc31e5a.js
  • widget.js
  • back.png
  • loading.gif
  • csm_01_ises_head_2b489c0246.jpg
  • ises_titel_03.jpg
  • csm_Dsf3_3a2e3ec4db.jpg
  • csm_Banner_eb91d91056.png
  • csm_EuroSun_2014_Closing_Group_Photo_4057703fc8.jpg
  • ises_logo.png
  • login.png
  • csm_Join_button_website_solar_community_6efd9e871f.jpg
  • S-xyU3m5ec8
  • csm_FB-f-Logo__blue_07_46724d6d51.jpg
  • csm_twitter-bird-white-on-blue_web_02_96d5905cc6.jpg
  • csm_LinkedIn_logo_50x50px_01_8cae5cc6b8.jpg
  • csm_g_icon_50px_02_b58dc23b86.jpg
  • csm_YouTube-logo-full_color-1_2930a9c42b.png
  • csm_Man_Child_Sunset_Image_275230fea8.jpg
  • csm_Kopf_Flaggen_794x194_5790556774.jpg
  • csm_cb_Lleida1_new_e8b2cfab63.jpg
  • csm_BSW_thermie_1113a5135c.jpg
  • logo_banner_Adler_Solar_245x150.jpg
  • alanod.jpg
  • elsevier.jpg
  • csm_Hukseflux_245x150_c395d3456b.jpg
  • jms.jpg
  • tp-solar.jpg
  • csm_100_renewables_logo_245x150px_01_227430acd5.png
  • Go100percentRE_logo_245x150px.png
  • REN_Alliance_logo_245x150px.gif
  • IRELP_logo_245x150px.jpg
  • SEE4ALL_logo_245x150px.jpg
  • REN21_logo_245x150px.jpg
  • search_back.png
  • search.png
  • members.png
  • clear.png
  • experts.png
  • widget
  • analytics.js
  • collect
  • socialshareprivacy.css
  • conference.png
  • blog.png
  • collect
  • www-embed-player-vflfNyN_r.css
  • www-embed-player.js
  • fBnyGA8Aionz5086-mElmoOSPUuyQ1M9Un647_EjucU.js
  • ad_status.js
  • 2UX7WLTfW3W8TclTUvlFyQ.woff
  • RxZJdnzeo3R5zSexge8UUT8E0i7KZn-EPnyo3HZu7kw.woff
  • csm_Webinar_Images_Fotolia_Cropped_1143d8a22c.jpg
  • dummy_facebook.png
  • dummy_twitter.png
  • dummy_gplus.png
  • dummy_linkedin.png
  • nav.png
  • options.png
  • common.css
  • buffer.css
  • delicious.css
  • disqus.css
  • facebook.css
  • flattr.css
  • gplus.css
  • hackernews.css
  • linkedin.css
  • mail.css
  • pinterest.css
  • reddit.css
  • stumbleupon.css
  • tumblr.css
  • twitter.css
  • xing.css
  • socialshareprivacy_on_off.png
  • arrows.png
  • bullets.png

Our browser made a total of 94 requests to load all elements on the main page. We found that 87% of them (82 requests) were addressed to the original, 2% (2 requests) were made to and 2% (2 requests) were made to The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain

Additional info on


The browser has sent 90 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ISES. 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 from 24 to 1 for CSS and as a result speed up the page load time.











Possible request optimization













Normal result

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 300
NS 300
NS 300

300 Mname:
Serial: 2021120300
Refresh: 10800
Retry: 3600
Expire: 604800
Minimum-ttl: 43200
MX 300 Pri: 20

Language and encoding

Normal result


EN en language flag


DE de 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 German 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

Country of origin for 32% of all visits is India. It lies approximately 4180 miles away from the server location (Germany) and such a long distance can negatively affect website speed, as it takes some time for data to travel back and forth between those places. That’s why one of the best ways to speed up page load time for the majority of users is moving the server to India or just closer to the user base.

Poor result

Poor result

Social Sharing Optimization

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

Share this report in social media

Analyze another website