4.4 sec in total
135 ms
2.4 sec
1.9 sec
Visit teacherscollege.columbia.edu now to see the best up-to-date Teachers College Columbia content for United States and also check out these interesting facts you probably never knew about teacherscollege.columbia.edu
Teachers College, Columbia University, is the first and largest graduate school of education in the United States, and also perennially ranked among the nation's best.
Visit teacherscollege.columbia.eduWe analyzed Teacherscollege.columbia.edu page load time and found that the first response time was 135 ms and then it took 4.3 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.
teacherscollege.columbia.edu performance score
name
value
score
weighting
Value3.5 s
35/100
10%
Value18.6 s
0/100
25%
Value8.1 s
21/100
10%
Value2,450 ms
5/100
30%
Value0.752
6/100
15%
Value21.1 s
1/100
10%
135 ms
86 ms
311 ms
308 ms
19 ms
Our browser made a total of 100 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Teacherscollege.columbia.edu, 51% (51 requests) were made to Tc.columbia.edu and 6% (6 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (903 ms) relates to the external source Curator-assets.b-cdn.net.
Page size can be reduced by 364.1 kB (5%)
7.4 MB
7.0 MB
In fact, the total size of Teacherscollege.columbia.edu main page is 7.4 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. 85% 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 7.1 MB which makes up the majority of the site volume.
Potential reduce by 131.5 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 131.5 kB or 84% of the original size.
Potential reduce by 197.9 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. Teachers College Columbia images are well optimized though.
Potential reduce by 458 B
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 34.2 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. Teacherscollege.columbia.edu needs all CSS files to be minified and compressed as it can save up to 34.2 kB or 29% of the original size.
Number of requests can be reduced by 32 (40%)
80
48
The browser has sent 80 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Teachers College Columbia. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 23 to 1 for JavaScripts and as a result speed up the page load time.
teacherscollege.columbia.edu
135 ms
www.tc.columbia.edu
86 ms
gtm.js
311 ms
ping
308 ms
styles.css
19 ms
bundle.js
70 ms
2.6.10.min.js
67 ms
tc_web_masthead_logo_tag.png
403 ms
Detra-and-Yolanda-Award-hero-2022.jpg
480 ms
Orientation-22-hero.jpg
476 ms
2023-application-now-open-tc.jpg
459 ms
Judith-Scott-Clayton-White-House-2022.jpg
460 ms
TC-Fall-Horace-Mann-Hero.jpg
461 ms
convocation-2019.jpg
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Harlem-at-Sunset-175536035_5462x3641-resize-1200x800.jpg
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resized-TC-main-3-lg.jpg
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tc-logo-short.png
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social-feed-v2.php
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ccbad2fe4eb072ef971665f3fa30cb0b.svg
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tc-building-spring.jpg
425 ms
resized-Admission-19-2-lg.jpg
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resized-exert-1-lg.jpg
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resized-Admission-19-9-lg.jpg
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TC-Entrance.jpg
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edweek.png
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630895eb995105bb4962ab76392cd005.woff
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c33958efa1ea0e4ef5ab5a8ad8261f2a.woff
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a6c4091a9678053e46a83459ded5878c.woff
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events-v2.php
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articles-v2.php
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articles-v2.php
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c5cd7f5300576ab4c88202b42f6ded62.gif
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resized-Admission-Home-6-lg.jpg
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resized-Admission-2-lg.jpg
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resized-Admission-19-4-lg.jpg
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resized-TC-main-4-lg.jpg
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students-in-faculty-office.jpg
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fbevents.js
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analytics.js
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dc.js
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conversion_async.js
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insight.min.js
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bat.js
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hotjar-1419139.js
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uwt.js
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events.js
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modules.8203b45d0468dcab4b64.js
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__utm.gif
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ga-audiences
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adsct
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box-69edcc3187336f9b0a3fbb4c73be9fe6.html
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Patricia-Cloherty-hero-image.jpg
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Marie-Miville-Book-hero.jpg
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EdUp-experience-hero-2.jpg
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Amra-DHS-grant-22-hero.jpg
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tc-way-sign-1200-x-800.jpg
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Cathy-Benedict-Hero.jpg
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TC-120---1200x800.jpg
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career-advice-tc-next-2022.jpg
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ga-audiences
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clarity.js
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teacherscollege.columbia.edu 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
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>).
teacherscollege.columbia.edu best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Missing source maps for large first-party JavaScript
teacherscollege.columbia.edu SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
robots.txt is not valid
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 Teacherscollege.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 Teacherscollege.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.
teacherscollege.columbia.edu
Open Graph data is detected on the main page of Teachers College Columbia. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: