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csl.cornell.edu: Computer Systems Laboratory – Cornell University

Page load speed analysis

  • 93/100

    Good result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    84 ms

  • Resources loaded

    254 ms

  • Page rendered

    223 ms

  • Total page load time

    561 ms

Visit csl.cornell.edu now to see the best up-to-date Csl Cornell content for United States and also check out these interesting facts you probably never knew about csl.cornell.edu

We analyzed Csl.cornell.edu page load time and found that the first response time was 84 ms and then it took 477 ms to load all DOM resources and completely render a web page. This is an excellent result, as only 5% of websites can load faster.

Page optimization

  • HTML 10.7 kB
    Images 272.7 kB
    Javascripts 22.5 kB
    CSS 0 B

    In fact, the total size of Csl.cornell.edu main page is 305.9 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. 20% of websites need less resources to load. Images take 272.7 kB which makes up the majority of the site volume.

    • Original 10.7 kB
    • After minification 9.4 kB
    • After compression 2.3 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 1.3 kB, which is 12% 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 8.4 kB or 78% of the original size.

    • Original 272.7 kB
    • After optimization 255.7 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. Csl Cornell images are well optimized though.

    • Original 22.5 kB
    • After minification 22.5 kB
    • After compression 7.7 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 14.8 kB or 66% of the original size.

Network requests diagram

  • csl.cornell.edu
  • counter_xhtml.js
  • HomeMainCSLHeader.jpg
  • Meyrem%20Teaching%204x2.jpg
  • Cluster%204x2.jpg
  • Async%20FPGA%203x2.jpg
  • right_gray.gif
  • Xiaodong%202x2.jpg
  • science_sq.jpg
  • Engin%202x2.jpg
  • Jose%202x2.jpg
  • Ed%202x2.jpg
  • Dave%202x2.jpg
  • Studer%202x2.jpg
  • t.php

Our browser made a total of 15 requests to load all elements on the main page. We found that 87% of them (13 requests) were addressed to the original Csl.cornell.edu, 7% (1 request) were made to Statcounter.com and 7% (1 request) were made to C.statcounter.com. The less responsive or slowest element that took the longest time to load (142 ms) relates to the external source C.statcounter.com.

Additional info on csl.cornell.edu

Requests

The browser has sent 14 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Csl Cornell. According to our analytics all requests are already optimized.

1

Javascripts

13

Images

14

All

Possible request optimization

1

Javascripts

13

Images

0

Optimized

14

All

Good result

IP address

Csl.cornell.edu uses IP address which is currently shared with 2 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.

Normal result

IP Trace

csl.cornell.edu

simcafe.org

collabspace.cornell.edu

128.253.49.82

DNS records

Type Host Target/ip TTL Other
A

csl.cornell.edu

128.84.224.10 300
MX

csl.cornell.edu

cornellprod-mail-onmicrosoft-com.mail.eo.outlook.com 86400 Pri: 10

Language and encoding

Poor result

Language

EN en language flag

Detected

N/A  language flag

Claimed

Encoding

ISO-8859-1

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Csl.cornell.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 Csl.cornell.edu main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

HTTPS certificate

SSL Certificate

Csl.cornell.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 65.2% of all visits is United States. It’s good for Csl.cornell.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 Csl Cornell. 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:

csl.cornell.edu

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