Report Summary

  • 76

    Performance

    Renders faster than
    84% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 90% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    34% of websites

  • 54

    SEO

    Google-friendlier than
    29% of websites

afe.easia.columbia.edu

Asia for Educators | Columbia University

Page Load Speed

558 ms in total

First Response

134 ms

Resources Loaded

284 ms

Page Rendered

140 ms

afe.easia.columbia.edu screenshot

About Website

Click here to check amazing Afe E Asia Columbia content for United States. Otherwise, check out these important facts you probably never knew about afe.easia.columbia.edu

Asia for Educators (AFE) is designed to serve faculty and students in world history, culture, geography, art, and literature at the undergraduate and pre-college levels.

Visit afe.easia.columbia.edu

Key Findings

We analyzed Afe.easia.columbia.edu page load time and found that the first response time was 134 ms and then it took 424 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.

Performance Metrics

afe.easia.columbia.edu performance score

76

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.1 s

82/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

31/100

25%

SI (Speed Index)

Value2.2 s

99/100

10%

TBT (Total Blocking Time)

Value220 ms

87/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value4.2 s

86/100

10%

Network Requests Diagram

afe.easia.columbia.edu

134 ms

css

25 ms

afestyle_home.css

20 ms

modernizr.custom.89266.js

28 ms

jquery.min.js

23 ms

Our browser made a total of 21 requests to load all elements on the main page. We found that 67% of them (14 requests) were addressed to the original Afe.easia.columbia.edu, 14% (3 requests) were made to Fonts.gstatic.com and 10% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (134 ms) belongs to the original domain Afe.easia.columbia.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 112.4 kB (17%)

Content Size

646.9 kB

After Optimization

534.4 kB

In fact, the total size of Afe.easia.columbia.edu main page is 646.9 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. 30% of websites need less resources to load. Images take 560.8 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 9.7 kB

  • Original 13.9 kB
  • After minification 12.7 kB
  • After compression 4.2 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 9.7 kB or 70% of the original size.

Image Optimization

-10%

Potential reduce by 54.4 kB

  • Original 560.8 kB
  • After minification 506.4 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. Afe E Asia Columbia images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 34.7 kB

  • Original 56.1 kB
  • After minification 56.1 kB
  • After compression 21.4 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 34.7 kB or 62% of the original size.

CSS Optimization

-85%

Potential reduce by 13.7 kB

  • Original 16.0 kB
  • After minification 9.8 kB
  • After compression 2.4 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. Afe.easia.columbia.edu needs all CSS files to be minified and compressed as it can save up to 13.7 kB or 85% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

17

After Optimization

17

The browser has sent 17 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Afe E Asia Columbia. According to our analytics all requests are already optimized.

Accessibility Review

afe.easia.columbia.edu accessibility score

95

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

Links do not have a discernible name

Best Practices

afe.easia.columbia.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

afe.easia.columbia.edu SEO score

54

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

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Afe.easia.columbia.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 Afe.easia.columbia.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.

Social Sharing Optimization

Open Graph description is not detected on the main page of Afe E Asia Columbia. 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: