Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

cs.sfsu.edu

Welcome | Department of Computer Science

Page Load Speed

1.8 sec in total

First Response

476 ms

Resources Loaded

1.1 sec

Page Rendered

249 ms

cs.sfsu.edu screenshot

About Website

Click here to check amazing Cs Sfsu content for United States. Otherwise, check out these important facts you probably never knew about cs.sfsu.edu

Visit cs.sfsu.edu

Key Findings

We analyzed Cs.sfsu.edu page load time and found that the first response time was 476 ms and then it took 1.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

cs.sfsu.edu performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.6 s

65/100

10%

LCP (Largest Contentful Paint)

Value8.3 s

2/100

25%

SI (Speed Index)

Value3.9 s

83/100

10%

TBT (Total Blocking Time)

Value90 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.367

29/100

15%

TTI (Time to Interactive)

Value6.3 s

61/100

10%

Network Requests Diagram

cs.sfsu.edu

476 ms

mm_menu.js

320 ms

Facebook-icon.png

24 ms

twitter-logo-icon-by-jon-bennallick-02.png

43 ms

sfsu07.jpg

109 ms

Our browser made a total of 10 requests to load all elements on the main page. We found that 60% of them (6 requests) were addressed to the original Cs.sfsu.edu, 20% (2 requests) were made to Google-analytics.com and 10% (1 request) were made to Icons.iconarchive.com. The less responsive or slowest element that took the longest time to load (476 ms) belongs to the original domain Cs.sfsu.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 60.0 kB (28%)

Content Size

214.7 kB

After Optimization

154.7 kB

In fact, the total size of Cs.sfsu.edu main page is 214.7 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. Only 10% of websites need less resources to load. Images take 131.2 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 29.4 kB

  • Original 35.5 kB
  • After minification 33.0 kB
  • After compression 6.2 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. 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 29.4 kB or 83% of the original size.

Image Optimization

-4%

Potential reduce by 5.6 kB

  • Original 131.2 kB
  • After minification 125.6 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. Cs Sfsu images are well optimized though.

JavaScript Optimization

-52%

Potential reduce by 25.0 kB

  • Original 47.9 kB
  • After minification 42.1 kB
  • After compression 22.9 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 25.0 kB or 52% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cs Sfsu. According to our analytics all requests are already optimized.

Accessibility Review

cs.sfsu.edu accessibility score

98

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

cs.sfsu.edu best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

cs.sfsu.edu SEO score

82

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Document uses legible font sizes

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Cs.sfsu.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 Cs.sfsu.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.

Social Sharing Optimization

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