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gelfand.case.edu: The Leonard Gelfand STEM Center – Just another Case site

The Leonard Gelfand STEM Center leverages the resources of Case Western Reserve University to engage preK-12 students in activities that introduce them to scientific practices and concepts and inspire...

Page load speed analysis

  • 70/100

    Good result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    531 ms

  • Resources loaded

    1.6 sec

  • Page rendered

    264 ms

  • Total page load time

    2.4 sec

Visit gelfand.case.edu now to see the best up-to-date Gelfand Case content for United States and also check out these interesting facts you probably never knew about gelfand.case.edu

We analyzed Gelfand.case.edu page load time and found that the first response time was 531 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Page optimization

  • HTML 12.7 kB
    Images 109.9 kB
    Javascripts 26.3 kB
    CSS 16.4 kB

    In fact, the total size of Gelfand.case.edu main page is 165.3 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 109.9 kB which makes up the majority of the site volume.

    • Original 12.7 kB
    • After minification 11.6 kB
    • After compression 3.8 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 8.9 kB or 70% of the original size.

    • Original 109.9 kB
    • After optimization 106.9 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. Gelfand Case images are well optimized though.

    • Original 26.3 kB
    • After minification 26.3 kB
    • After compression 10.9 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 15.4 kB or 58% of the original size.

    • Original 16.4 kB
    • After minification 12.1 kB
    • After compression 3.0 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. Gelfand.case.edu needs all CSS files to be minified and compressed as it can save up to 13.4 kB or 82% of the original size.

Network requests diagram

  • gelfand.case.edu
  • main.css
  • nav.js
  • cwru-header.html
  • blank.jpg
  • LG_Header5.jpg
  • GFCT4.jpg
  • MHJF1.jpg
  • BFF1.jpg
  • OSGC1.jpg
  • engcarn1.jpg
  • shipwreck2.jpg
  • environheropic11_front.jpg
  • sf1.jpg
  • facebook2.jpg
  • twitter2.jpg
  • youtube2.jpg
  • footerBg.png
  • searchIcon.jpg
  • cwruheader.css
  • jsonp.pl
  • cwru-logo.png
  • search-icon.png
  • analytics.js
  • collect
  • print.css

Our browser made a total of 26 requests to load all elements on the main page. We found that 65% of them (17 requests) were addressed to the original Gelfand.case.edu, 19% (5 requests) were made to Case.edu and 8% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (541 ms) belongs to the original domain Gelfand.case.edu.

Additional info on gelfand.case.edu

Requests

The browser has sent 23 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Gelfand Case. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests and as a result speed up the page load time.

2

Javascripts

17

Images

3

CSS

1

AJAX

23

All

Possible request optimization

2

Javascripts

12

Images

3

CSS

1

AJAX

5

Optimized

18

All

Good result

IP address

Gelfand.case.edu 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

gelfand.case.edu

biology.case.edu

theater.case.edu

english.case.edu

summer.case.edu

52.4.46.204

52.70.23.11

54.85.113.229

DNS records

Type Host Target/ip TTL Other
A

CAS-CMS-Application-ELB2-1861691740.us-east-1.elb.amazonaws.com

52.20.51.25 60
A

CAS-CMS-Application-ELB2-1861691740.us-east-1.elb.amazonaws.com

52.86.77.80 60
A

CAS-CMS-Application-ELB2-1861691740.us-east-1.elb.amazonaws.com

54.88.178.65 60
A

CAS-CMS-Application-ELB2-1861691740.us-east-1.elb.amazonaws.com

52.21.125.237 60
CNAME

gelfand.case.edu

CAS-CMS-Application-ELB2-1861691740.us-east-1.elb.amazonaws.com 300

Language and encoding

Normal result

Language

EN en language flag

Detected

N/A  language flag

Claimed

Encoding

UTF-8

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Gelfand.case.edu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Gelfand.case.edu 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

Gelfand.case.edu 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 71.9% of all visits is United States. It’s good for Gelfand.case.edu that their server is also located in United States, 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 Gelfand Case. 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:

gelfand.case.edu

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