Analyze

cmu.edu: Homepage - CMU - Carnegie Mellon University

CMU is a global research university known for its world-class, interdisciplinary programs: arts, business, computing, engineering, humanities, policy and science.

Page load speed analysis

  • 61/100

    Normal result
  • 6

    Successful tests
  • 2

    Failed tests
  • First response

    351 ms

  • Resources loaded

    7.8 sec

  • Page rendered

    13.5 sec

  • Total page load time

    21.7 sec

Welcome to cmu.edu homepage info - get ready to check CMU best content for United States right away, or after learning these important things about cmu.edu

We analyzed Cmu.edu page load time and found that the first response time was 351 ms and then it took 21.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Page optimization

  • HTML 48.8 kB
    Images 3.4 MB
    Javascripts 474.9 kB
    CSS 167.8 kB

    In fact, the total size of Cmu.edu main page is 4.1 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.4 MB which makes up the majority of the site volume.

    • Original 48.8 kB
    • After minification 23.6 kB
    • After compression 6.8 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. This page needs HTML code to be minified as it can gain 25.2 kB, which is 52% 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 42.0 kB or 86% of the original size.

    • Original 3.4 MB
    • After optimization 3.4 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. CMU images are well optimized though.

    • Original 474.9 kB
    • After minification 472.0 kB
    • After compression 154.8 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 320.1 kB or 67% of the original size.

    • Original 167.8 kB
    • After minification 161.9 kB
    • After compression 33.8 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. Cmu.edu needs all CSS files to be minified and compressed as it can save up to 134.0 kB or 80% of the original size.

Network requests diagram

  • www.cmu.edu
  • css
  • main.min.css
  • jquery-1.10.1.min.js
  • main.min.js
  • flickity.pkgd.min.js
  • __utm.js
  • gtm.js
  • cmu-wordmark.png
  • icon-magnify.png
  • jazzlabs_01_900x600-min.jpg
  • craig-street-crawl-79_900x600-min.jpg
  • convocation2_900x600-min.jpg
  • decision-systems_900x600-min.jpg
  • chris-hanselman_900x600-min.jpg
  • griffith-atkinson_900x600-min.jpg
  • pres_fellows-teal.jpg
  • icons-cap.png
  • icon-dollar-sign.png
  • BrainHub_graphic_72-min.jpg
  • cmu-students-600x600-min.jpg
  • simon-480x480-min.jpg
  • strategic-plan-600-min.jpg
  • baseball-hat_700x700-min.jpg
  • bg-seal.png
  • sprites-social.png
  • icon-leave-site.png
  • icon-leave-site-grey.png
  • cJZKeOuBrn4kERxqtaUH3aCWcynf_cDxXwCLxiixG1c.ttf
  • DXI1ORHCpsQm3Vp6mXoaTYnF5uFdDttMLvmWuJdhhgs.ttf
  • k3k702ZOKiLJc3WVjuplzInF5uFdDttMLvmWuJdhhgs.ttf
  • analytics.js
  • iframe_api
  • __utm.gif
  • jazzlabs_01_1400x700-min.jpg
  • craig-street-crawl-79_1400x700-min.jpg
  • convocation2_1400x700-min.jpg
  • icon-leave-site-white.png
  • cmu-wordmark.png
  • activityi;src=6255283;type=carne0;cat=gener0;ord=1;num=1876572010456;~oref=http%3A%2F%2Fwww.cmu.edu%2F
  • collect
  • www-widgetapi.js
  • rubicon
  • rum
  • rum

Our browser made a total of 45 requests to load all elements on the main page. We found that 71% of them (32 requests) were addressed to the original Cmu.edu, 7% (3 requests) were made to Fonts.gstatic.com and 4% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2 sec) belongs to the original domain Cmu.edu.

Additional info on cmu.edu

Requests

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CMU. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and as a result speed up the page load time.

8

Javascripts

28

Images

2

CSS

1

AJAX

39

All

Possible request optimization

1

Javascripts

21

Images

2

CSS

1

AJAX

14

Optimized

25

All

Normal result

IP address

Cmu.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

cmu.edu

cmtoday.cmu.edu

ideate.cmu.edu

rec.ri.cmu.edu

women.cs.cmu.edu

128.2.42.52

DNS records

Type Host Target/ip TTL Other
A

cmu.edu

128.2.42.10 13416
NS

cmu.edu

NY-SERVER-03.NET.cmu.edu 21600
NS

cmu.edu

NSAUTH1.NET.cmu.edu 21600
NS

cmu.edu

NSAUTH2.NET.cmu.edu 21600
SOA

cmu.edu

21600 Mname: nsauth-master.net.cmu.edu
Rname: host-master.andrew.cmu.edu
Serial: 12661166
Refresh: 900
Retry: 450
Expire: 3600000
Minimum-ttl: 21600

Language and encoding

Good result

Language

EN en 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 Cmu.edu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Cmu.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

Cmu.edu 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 38.4% of all visits is United States. It’s good for Cmu.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

Good result

Social Sharing Optimization

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

cmu.edu

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