6.1 sec in total
2.7 sec
3 sec
446 ms
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Visit semester.lyWe analyzed Semester.ly page load time and found that the first response time was 2.7 sec and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.
semester.ly performance score
name
value
score
weighting
Value2.5 s
69/100
10%
Value9.0 s
1/100
25%
Value2.5 s
98/100
10%
Value80 ms
99/100
30%
Value0.001
100/100
15%
Value3.9 s
89/100
10%
2742 ms
58 ms
38 ms
14 ms
22 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 79% of them (27 requests) were addressed to the original Semester.ly, 6% (2 requests) were made to Maxcdn.bootstrapcdn.com and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (2.7 sec) belongs to the original domain Semester.ly.
Page size can be reduced by 71.2 kB (5%)
1.4 MB
1.3 MB
In fact, the total size of Semester.ly main page is 1.4 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. 40% of websites need less resources to load. Images take 1.3 MB which makes up the majority of the site volume.
Potential reduce by 9.8 kB
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 1.6 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 9.8 kB or 78% of the original size.
Potential reduce by 29.5 kB
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. Semester images are well optimized though.
Potential reduce by 1.2 kB
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. This website has mostly compressed JavaScripts.
Potential reduce by 30.8 kB
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. Semester.ly needs all CSS files to be minified and compressed as it can save up to 30.8 kB or 78% of the original size.
Number of requests can be reduced by 3 (10%)
30
27
The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Semester. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 4 to 1 for CSS and as a result speed up the page load time.
semester.ly
2742 ms
semester.ly
58 ms
css
38 ms
global.css
14 ms
splash.css
22 ms
font-awesome.min.css
27 ms
jquery.min.js
28 ms
splash.js
30 ms
analytics.js
51 ms
logo2.0-32x32.png
47 ms
jhu-square.png
23 ms
umd-square.png
22 ms
uoft-square.png
26 ms
qu-square.png
43 ms
vandy-square.png
36 ms
gw-square.png
42 ms
chapman-square.png
30 ms
umich-square.png
36 ms
salisbury-square.png
41 ms
ChromeMockup.png
51 ms
friends_photo.png
63 ms
friends.png
64 ms
pagination.gif
72 ms
advancedsearch.png
55 ms
hub.png
52 ms
jhu-logo.png
60 ms
jhu-newsletter.png
60 ms
odyssey-transparent.png
62 ms
technically-black.png
67 ms
whiting.png
68 ms
iPhoneMockupCropped.png
71 ms
fontawesome-webfont.woff
15 ms
collect
11 ms
collect
46 ms
semester.ly accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Image elements do not have [alt] attributes
Links do not have a discernible name
Tables and lists
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Impact
Issue
Lists do not contain only <li> elements and script supporting elements (<script> and <template>).
Best practices
These items highlight common accessibility best practices.
Impact
Issue
[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.
semester.ly best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
semester.ly SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Semester.ly 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 Semester.ly 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.
semester.ly
Open Graph data is detected on the main page of Semester. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: